Electrode for lithium secondary battery, method of manufacturing the electrode, and lithium secondary battery including the electrode

An electrode for a lithium secondary battery includes a silicon-based alloy, and has a surface roughness of about 1 to about 10 μm and a surface roughness deviation of 5 μm or less. A method of manufacturing the electrode includes mixing an electrode composition, milling the composition, coating the milled composition on a current collector, and drying the milled composition. A lithium secondary battery includes the electrode.

Electrode active material, method of preparing the same, electrode for lithium secondary battery which includes the same, and lithium secondary battery using the electrode

An electrode active material including a core active material and a coating layer, including a compound represented as the following Formula 1, on a surface of the core active material, a method of preparing the same, an electrode for a lithium secondary battery which includes the same, and a lithium secondary battery using the electrode. Lia-Mb-Nc[Formula 1] where, M denotes an alkaline earth metal, a/(a+b+c) is in a range of about 0.10 to about 0.40, b/(a+b+c) is in a range of about 0.20 to about 0.50, and c/(a+b+c) is in a range of about 0.20 to about 0.50.

ANODE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY EMPLOYING THE SAME, AND METHOD OF PREPARING THE ANODE ACTIVE MATERIAL

An anode active material, a lithium battery including the anode active material, and a method of preparing the anode active material are provided. The anode active material includes an alloy containing silicon (Si), titanium (Ti) and nickel (Ni) elements, wherein the alloy includes a Si phase and an alloy phase, and a peak intensity ratio (I (111) /I (220) ) of Si(111) to Si(220) plane in a X-ray diffraction spectrum of the Si phase is from about 1.0 to about 1.5.

NEGATIVE ACTIVE MATERIAL, NEGATIVE ELECTRODE AND LITHIUM BATTERY INCLUDING THE NEGATIVE ACTIVE MATERIAL, AND METHOD OF MANUFACTURING THE NEGATIVE ACTIVE MATERIAL

A negative active material, a negative electrode, a lithium battery including the negative active material, and a method of manufacturing the negative active material, the negative electrode, and the lithium battery. The negative active material includes a silicon-based alloy including Si, Ti, Ni, and Fe components. The silicon-based alloy includes a Ti 2 Ni phase as an inactive phase and active silicon having a lower content than that of typical silicon-based alloys. The negative active material may improve discharge capacity and lifetime characteristics of lithium batteries.

Negative active material for rechargeable lithium battery and rechargeable lithium battery including same

A negative active material for a rechargeable lithium battery includes a matrix including an Si-X based alloy, where X is not Si and is selected from alkali metals, alkaline-earth metals, Group 13 elements, Group 14 elements, Group 15 elements, Group 16 elements, transition elements, rare earth elements, or combinations thereof; silicon dispersed in the matrix; and oxygen in the negative active material, the oxygen being included at 20 at% or less based on the total number of atoms in the negative active material. A rechargeable lithium battery includes the negative active material.

Electrode active material for lithium secondary battery, method of preparing the electrode active material, electrode for lithium secondary battery including the same, and lithium secondary battery using the same

An electrode active material for a lithium secondary battery, a method of preparing the electrode active material, an electrode for a lithium secondary battery which includes the same, a lithium secondary battery using the electrode. The electrode active material includes a core active material and a coating layer including magnesium aluminum oxide (MgAlO 2 ) and formed on the core active material. 1s binding energy peaks of oxygen (O) in the electrode active material measured by x-ray photoelectron spectroscopy (XPS) are shown at positions corresponding to 529.4±0.5 eV, about 530.7 eV, and 531.9±0.5 eV, and a peak intensity at the position corresponding to 529.4±0.5 eV is stronger than a peak intensity at the position corresponding to about 530.7 eV.

Negative active material for lithium battery, method of preparing the negative active material, and lithium battery employing the negative active material

A negative active material for a lithium battery with an improved cycle characteristic and capacity retention rate, and the negative active material comprises a plurality of particles comprising a plurality of first particles comprising Si, Ti, and Ni; and composite particles comprising a plurality of second particles in which at least one element selected from the group consisting of Cu, Fe, Ni, Au, Ag, Pd, Cr, Mn, Ti, B, and P is partially or completely deposited on surface(s) of other of first particles, a method of preparing the negative active material, and a lithium battery including a negative electrode including the negative active material.

Battery Cell/Pack Testing Devices, Systems Including Such Devices, and Methods and Software for the Same

Testing devices for testing target test devices each composed of one or more battery cells, such as battery cells and battery packs. In some embodiments, a testing device may be considered self-contained in that it may include sufficient onboard systems and features to allow the testing device to conduct testing on one or more target test devices with minimal inputs, such as electrical power, higher-level instructions, and/or control inputs. In some embodiments, a testing device may include an explosion- and/or fire-proof or -resistant enclosure. In some embodiments, components of a testing device may be modularized for easy reconfiguring for different testing and/or different target test devices. In some embodiments, a plurality of testing devices can be controlled by a central testing controller. Related methods and systems are also disclosed.

MATERIAL FOR FORMING PROTECTIVE LAYER, METHOD OF PREPARING THE MATERIAL, AND PDP COMPRISING THE PROTECTIVE LAYER

Disclosed is a material for forming a protective layer, a protective layer employing the material and a PDP with the protective layer. Unlike conventional protective layers which employ MgO created in conditions of pressurized artificial gas, the instant protective layer uses MgO created by heating Mg and allowing it to oxidize naturally in air. The result is MgO with fewer defects that is more effective as a protective layer in many uses, such as in a PDP. The instant MgO also shows many specific spectral characteristics and contains impurities in amounts of less than about 2 ppm each. Also disclosed is a PDP which takes advantage of the advantages of the inventive protective layer.

Electrode active material for lithium secondary battery, electrode for lithium secondary battery including the same, and lithium secondary battery including the electrode

In an aspect, an electrode active material for a lithium secondary battery, the electrode active material including a silicon-based alloy and a coating film containing a polymer that includes a 3,4-ethylenedioxythiophene repeating unit and an oxyalkylene repeating unit, coated on the surface of the silicon-based alloy are provided.

NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

A negative active material for a rechargeable lithium battery includes a matrix including an Si—X based alloy, where X is not Si and is selected from alkali metals, alkaline-earth metals, Group 13 elements, Group 14 elements, Group 15 elements, Group 16 elements, transition elements, rare earth elements, or combinations thereof; silicon dispersed in the matrix; and oxygen in the negative active material, the oxygen being included at 20 at % or less based on the total number of atoms in the negative active material. A rechargeable lithium battery includes the negative active material. 1. A negative active material for a rechargeable lithium battery comprising:a matrix comprising an Si—X based alloy, where X is not Si and is selected from the group consisting of alkali metals, alkaline-earth metals, Group 13 elements, Group 14 elements, Group 15 elements, Group 16 elements, transition elements, rare earth elements, and combinations thereof;silicon dispersed in the matrix; andoxygen in the negative active material, the oxygen being included at 20 at % or less based on the total number of atoms in the negative active material.2. The negative active material of claim 1 , wherein the Si—X-based alloy is selected from the group consisting of Si—Co-based alloys claim 1 , Si—Ni-based alloys claim 1 , Si—Mn-based alloys claim 1 , Si—Ti—Ni-based alloys claim 1 , Si—Al—Fe-based alloys claim 1 , Si—Al—Mn-based alloys claim 1 , Si—Mg—Zn-based alloys claim 1 , Si—Ti—Zn-based alloys claim 1 , and combinations thereof.3. The negative active material of claim 1 , wherein the oxygen in the negative active material is included at 15 at % or less based on the total number of atoms in the negative active material.4. The negative active material of claim 1 , wherein the oxygen in the negative active material is included at 10 at % or less based on the total number of atoms in the negative active material.5. The negative active material of claim 1 , wherein the negative active material has ...

ELECTRODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, ELECTRODE FOR LITHIUM SECONDARY BATTERY WHICH INCLUDES THE SAME, AND LITHIUM SECONDARY BATTERY USING THE ELECTRODE

An electrode active material including a core active material and a coating layer, including a compound represented as the following Formula 1, on a surface of the core active material, a method of preparing the same, an electrode for a lithium secondary battery which includes the same, and a lithium secondary battery using the electrode. 1. An electrode active material comprising:a core active material; and {'br': None, 'sub': a', 'b', 'c, 'Li-M-N\u2003\u2003[Formula 1]'}, 'a coating layer, comprising a compound represented by Formula 1, on a surface of the core active material,'}where, M denotes an alkaline earth metal,a/(a+b+c) is in a range of about 0.10 to about 0.40,b/(a+b+c) is in a range of about 0.20 to about 0.50, andc/(a+b+c) is in a range of about 0.20 to about 0.50.2. The electrode active material of claim 1 , wherein claim 1 , in Formula 1 claim 1 , {a/(a+b+c)} is in a range of about 0.15 to about 0.35 claim 1 , {b/(a+b+c)} is in a range of about 0.3 to about 0.45 claim 1 , and {c/(a+b+c)} is in a range of about 0.30 to about 0.45.3. The electrode active material of claim 1 , wherein M is at least one selected from the group consisting of magnesium (Mg) claim 1 , calcium (Ca) claim 1 , strontium (Sr) claim 1 , and barium (Ba).4. The electrode active material of claim 1 , wherein the core active material is at least one selected from the group consisting of LiCoO claim 1 , LiNiO claim 1 , LiMnO claim 1 , LiMnO claim 1 , Li(NiCoMn)O(where 0 Подробнее

NEGATIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING NEGATIVE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE

A negative active material for a rechargeable lithium battery includes a Si—Al—Fe alloy represented by Formula 1. The Si—Al—Fe alloy includes a Si phase and an alloy phase, and the alloy phase includes Si, Al, and Fe in a ratio of atomic percentages of about 3:3:2: 1. A negative active material for a rechargeable lithium battery , comprising a Si—Al—Fe alloy represented by Formula 1 , the Si—Al—Fe alloy comprising a Si phase and an alloy phase , the alloy phase comprising Si , Al , and Fe in a ratio of atomic percentages of about 3:3:2:{'br': None, 'xSi-yAl-zFe \u2003\u2003Formula 1'}wherein 50 at %≦x≦90 at %, 5 at %≦y≦30 at %, 5 at %≦z≦30 at %, and x+y+z=100 at %.2. The negative active material of claim 1 , wherein the alloy phase registers an X-ray diffraction peak at a Bragg angle 2θ of about 20° to about 60° when measured using a CuK-α X-ray wavelength of 1.541Å.3. The negative active material of claim 1 , wherein the alloy phase registers a primary X-ray diffraction peak at a Bragg angle 2θ of about 44.7±1.0° when measured using a CuK-α X-ray wavelength of 1.541Å.4. The negative active material of claim 3 , wherein the alloy phase registers a first secondary X-ray diffraction peak at a Bragg angle 2θ of about 24.6±1.0° when measured using a CuK-α X-ray wavelength of 1.541 Å or a second secondary X-ray diffraction peak at a Bragg angle 2θ of about 47.0 ±1.0° when measured using a CuK-α X-ray wavelength of 1.541Å.5. The negative active material of claim 1 , wherein y>z.6. The negative active material of claim 1 , wherein the Si—Al—Fe alloy further comprises a second alloy phase claim 1 , the second alloy phase comprising Al and Fe in a ratio of atomic percentages of about 1 or greater.7. The negative active material of claim 1 , wherein at least a portion of the Si—Al—Fe alloy comprises a uniform dispersion of the Si phase and the alloy phase.8. The negative active material of claim 1 , wherein a ratio of Si at % of the Si phase to Si at % of the alloy phase in ...

Protecting layer having magnesium oxide particles at its surface, method of preparing the same, and plasma display panel comprising the protecting layer

Provided are a protecting layer for a plasma display panel (PDP), a method of forming the same, and a PDP including the protecting layer. The protecting layer includes a magnesium oxide-containing layer having a surface to which magnesium oxide-containing particles having a magnesium vacancy-impurity center (VIC) are attached. The protecting layer is resistant to plasma ions and has excellent electron emission effects, and thus, a PDP including the protecting layer can be operated at low voltage with high discharge efficiency.

Methods of controlling secondary lithium metal batteries to access reserve energy capacity and battery control systems incorporating the same

Aspects of the present disclosure include control systems for controlling secondary lithium metal batteries and for controlling electric devices powered, at least in part, thereby, that enable access to reserve energy stored in the lithium metal battery that is not typically available during normal operation. In some examples, the control systems provide access to the reserve energy in response to an emergency, such as requiring excess energy to power an electric device to a safe location.

Plasma display panel comprising magnesium oxide protective layer

Disclosed is a material for forming a protective layer, a protective layer employing the material and a PDP with the protective layer. Unlike conventional protective layers which employ MgO created in conditions of pressurized artificial gas, the instant protective layer uses MgO created by heating Mg and allowing it to oxidize naturally in air. The result is MgO with fewer defects that is more effective as a protective layer in many uses, such as in a PDP. The instant MgO also shows many specific spectral characteristics and contains impurities in amounts of less than about 2 ppm each. Also disclosed is a PDP which takes advantage of the advantages of the inventive protective layer.

Composite, electrode active material for secondary lithium battery including the composite, method of preparing the composite, anode for secondary lithium battery including the electrode active material, and secondary lithium battery including the anode

A composite includes a compound selected from the group consisting of a lithium lanthanum zirconium oxide and a lithium lanthanum tantalum oxide; a lanthanum oxide; and an oxide selected from the group consisting of a lanthanum zirconium oxide and a lanthanum tantalum oxide. An electrode active material for a secondary lithium battery may include such composite. Methods of preparing the composite, an electrode for a secondary lithium battery including the electrode active material, and a secondary lithium battery including the electrode are disclosed.

COMPOSITE, ELECTRODE ACTIVE MATERIAL FOR SECONDARY LITHIUM BATTERY INCLUDING THE COMPOSITE, METHOD OF PREPARING THE COMPOSITE, ANODE FOR SECONDARY LITHIUM BATTERY INCLUDING THE ELECTRODE ACTIVE MATERIAL, AND SECONDARY LITHIUM BATTERY INCLUDING THE ANODE

A composite includes a compound selected from the group consisting of a lithium lanthanum zirconium oxide and a lithium lanthanum tantalum oxide; a lanthanum oxide; and an oxide selected from the group consisting of a lanthanum zirconium oxide and a lanthanum tantalum oxide. An electrode active material for a secondary lithium battery may include such composite. Methods of preparing the composite, an electrode for a secondary lithium battery including the electrode active material, and a secondary lithium battery including the electrode are disclosed.

Negative active material, negative electrode and lithium battery including the negative active material, and method of manufacturing the negative active material

A negative active material, a negative electrode, a lithium battery including the negative active material, and a method of manufacturing the negative active material, the negative electrode, and the lithium battery. The negative active material includes a silicon-based alloy including Si, Ti, Ni, and Fe components. The silicon-based alloy includes a Ti 2 Ni phase as an inactive phase and active silicon having a lower content than that of typical silicon-based alloys. The negative active material may improve discharge capacity and lifetime characteristics of lithium batteries.

NEGATIVE ELECTRODE ACTIVE MATERIAL AND SECONDARY BATTERY INCLUDING THE SAME

A negative electrode active material and a secondary battery including the same are provided. More particularly, the present disclosure relates to a negative electrode active material including a Si-metal alloy including Si, the Si being present in the Si-metal alloy in an amount of 66 at % or less, and at least a portion of the Si being crystalline Si. The negative active material can provide a high-capacity battery, which can retain high capacity due to little volumetric expansion during charging and discharging, thereby demonstrating an excellent life characteristic of the secondary battery. The negative electrode active material may include a Si-metal alloy including crystalline Si having a crystal grain size of 30 nm or less. Methods of preparing a negative electrode active material and methods of preparing a secondary battery including the same are also disclosed. 1. A negative electrode active material for a secondary battery comprising:a Si-metal alloy comprising Si, the Si being present in the Si-metal alloy in an amount of 66 at % or less, and at least a portion of the Si being crystalline Si.2. The negative electrode active material of claim 1 , wherein the crystalline Si has a crystal grain size of 30 nm or less.3. The negative electrode active material of claim 1 , wherein the Si is present in the Si-metal alloy in an amount in a range of 66 at % to 60 at %.4. The negative electrode active material of claim 3 , wherein the Si is present in the Si-metal alloy in an amount in a range of 65 at % to 62 at %.5. The negative electrode active material of claim 1 , wherein the Si-metal alloy further comprises one or more metals selected from the group consisting of Ca claim 1 , Sc claim 1 , Ti claim 1 , V claim 1 , Cr claim 1 , Mn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Cu claim 1 , Zn claim 1 , Sr claim 1 , Y claim 1 , Zr claim 1 , Nb claim 1 , Ba claim 1 , Lu claim 1 , Hf claim 1 , Ta claim 1 , and lanthanoids.6. The negative electrode active ...

Negative active material, negative electrode, lithium battery and method for manufacturing the negative active material

A negative active material, a negative electrode, a lithium battery including the negative active material, and a method of manufacturing the negative active material, the negative electrode, and the lithium battery. The negative active material includes a silicon-based alloy including Si, Ti, Ni, and Fe components. The silicon-based alloy includes a Ti2Ni phase as an inactive phase and active silicon having a lower content than that of typical silicon-based alloys. The negative active material may improve discharge capacity and lifetime characteristics of lithium batteries.

ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF PREPARING THE ELECTRODE ACTIVE MATERIAL, ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING THE SAME, AND LITHIUM SECONDARY BATTERY USING THE SAME

An electrode active material for a lithium secondary battery, a method of preparing the electrode active material, an electrode for a lithium secondary battery which includes the same, a lithium secondary battery using the electrode. The electrode active material includes a core active material and a coating layer including magnesium aluminum oxide (MgAlO) and formed on the core active material, s binding energy peaks of oxygen (O) in the electrode active material measured by xray photoelectron spectroscopy (XPS) are shown at positions corresponding to eV, about eV, and eV, and a peak intensity at the position corresponding to eV is stronger than a peak intensity at the position corresponding to about eV. 1. An electrode active material for a lithium secondary battery , the electrode active material comprising:a core active material; and{'sub': '2', 'a coating layer comprising magnesium aluminum oxide (MgAlO) and formed on the core active material, 1s binding energy peaks of oxygen (O) in the electrode active material measured by xray photoelectron spectroscopy (XPS) are shown at positions corresponding to 529.4±0.5 eV, about 530.7 eV, and 531.9±0.5 eV, and, a peak intensity at the position corresponding to 529.4±0.5 eV is stronger than a peak intensity at the position corresponding to about 530.7 eV.'}2. The electrode active material for the lithium secondary battery of claim 1 , wherein an intensity ratio of the peak at the position corresponding to 529.4±0.5 eV to the peak at the position corresponding to about 530.7 eV is between about 1:0.6 through about 1:0.9.3. The electrode active material for the lithium secondary battery of claim 1 , wherein a peak intensity at the position corresponding to 531.9±0.5 eV is either the same or stronger than the peak intensity at the position corresponding to about 530.7 eV.4. The electrode active material for the lithium secondary battery of claim 1 , wherein an intensity ratio of the peak at the position corresponding to ...

Protecting layer having magnesium oxide particles at its surface, method of preparing the same, and plasma display panel comprising the protecting layer

Provided are a protecting layer for a plasma display panel (PDP), a method of forming the same, and a PDP including the protecting layer. The protecting layer includes a magnesium oxide-containing layer having a surface to which magnesium oxide-containing particles having a magnesium vacancy-impurity center (VIC) are attached. The protecting layer is resistant to plasma ions and has excellent electron emission effects, and thus, a PDP including the protecting layer can be operated at low voltage with high discharge efficiency.

NEGATIVE ACTIVE MATERIAL, NEGATIVE ELECTRODE AND LITHIUM BATTERY INCLUDING THE NEGATIVE ACTIVE MATERIAL, AND METHOD OF PREPARING THE NEGATIVE ACTIVE MATERIAL

A negative active material, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a silicon-based alloy including Si, Al, and Fe. The silicon-based alloy includes an active phase of silicon nanoparticles and an inactive phase of SiAlFeand SiFe in a ratios suitable to improve the lifespan of the lithium battery. 1. A negative active material comprising a silicon-based alloy comprising silicon nanoparticles dispersed in an alloy matrix , the alloy matrix comprising SiAlFeand SiFe , wherein the ratio of the sum of the atomic fractions of Si , Al , and Fe as SiAlFeto the sum of the atomic fractions of Si and Fe as SiFe is about 2 to about 12.2. The negative active material of claim 1 , wherein the ratio of the sum of the atomic fractions of Si claim 1 , Al claim 1 , and Fe as SiAlFeto the sum of the atomic fractions of Si and Fe as SiFe is about 4 to about 10.3. The negative active material of claim 1 , wherein the silicon-based alloy comprises about 40 at % to about 80 at % of Si claim 1 , about 10 at % to about 40 at % of Al claim 1 , and about 5 at % to about 25 at % of Fe claim 1 , and the total sum of atomic fractions of Si claim 1 , Al claim 1 , and Fe is 100 at %.4. The negative active material of claim 1 , wherein in the silicon-based alloy claim 1 , a ratio of the atomic fraction of Al to the atomic fraction of Fe is about 0.7 to about 1.1.5. The negative active material of claim 1 , wherein the silicon-based alloy is a pulverized powder having a D50 of about 0.3 μm to about 10 μm.6. The negative active material of claim 1 , wherein the silicon-based alloy comprises inactive silicon and active silicon claim 1 , the alloy matrix comprising the inactive silicon and the silicon nanoparticles comprising the active silicon.7. The negative active material of claim 6 , wherein in the silicon-based alloy claim 6 , an amount of the active silicon is about 40 at % to about ...

NEGATIVE ACTIVE MATERIAL, LITHIUM BATTERY INCLUDING THE MATERIAL, AND METHOD FOR MANUFACTURING THE MATERIAL

A negative active material having controlled particle size distribution of silicon nanoparticles in a silicon-based alloy, a lithium battery including the negative active material, and a method of manufacturing the negative active material are disclosed. The negative active material may improve capacity and lifespan characteristics by inhibiting (or reducing) volumetric expansion of the silicon-based alloy. The negative active material may include a silicon-based alloy including: a silicon alloy-based matrix; and silicon nanoparticles distributed in the silicon alloy-based matrix, wherein a particle size distribution of the silicon nanoparticles satisfies D10≧10 nm and D90≦75 nm. 1. A negative active material for a lithium battery comprising: a silicon alloy-based matrix; and', 'silicon nanoparticles distributed in the silicon alloy-based matrix,', 'wherein a particle size distribution of the silicon nanoparticles satisfies D10≧10 nm and D90≦75 nm., 'a silicon-based alloy comprising2. The negative active material of claim 1 , wherein the silicon-based alloy comprises silicon (Si) and at least one metal selected from the group consisting of Ca claim 1 , Sc claim 1 , Ti claim 1 , V claim 1 , Cr claim 1 , Mn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Cu claim 1 , Zn claim 1 , Sr claim 1 , Y claim 1 , Zr claim 1 , Nb claim 1 , Ba claim 1 , Lu claim 1 , Hf claim 1 , Ta claim 1 , and Lanthanum group elements.3. The negative active material of claim 2 , wherein the content of Si in the silicon-based alloy is 40 at % or greater based on 100 at % of the silicon-based alloy.4. The negative active material of claim 1 , wherein the silicon-based alloy comprises Si claim 1 , M′ claim 1 , and M″ claim 1 , and wherein M′ is Al claim 1 , Ti claim 1 , or Fe claim 1 , and M″ is Ni claim 1 , Fe claim 1 , or Mn.5. The negative active material of claim 4 , wherein the content of Si in the silicon-based alloy is in a range of 40 to 80 at % claim 4 , the content of M′ in the silicon ...

PLASMA DISPLAY PANEL PROTECTIVE LAYER

A plasma display panel (PDP) protective layer including a ternary compound in the form of BaXO, wherein X is selected from the group consisting of Sc, Y, Gd, La, Er, Ho, Nd, Sm, and Ce. Such protective layer has excellent electron emission characteristics and phase stability.

Rechargeable Battery

Battery core packs employing minimum cell-face pressure containment devices and methods are disclosed for minimizing dendrite growth and increasing cycle life of metal and metal-ion battery cells. 1. A battery core pack , comprising:a plurality of cells forming a cell stack, each cell comprising at least one anode and at least one cathode, wherein metal ions are stripped from the anode during discharge and re-plated on the anode during charge; anda containment structure at least partially surrounding the cell stack, wherein said containment structure imparts a substantially uniform surface pressure at certain value to said cell stack.2. The battery core pack of claim 1 , wherein the substantially uniform surface pressure is at least about 50 psi.3. The battery core pack of claim 2 , wherein said cells maintain a discharge capacity of greater than 2.5 Ah over at least 100 charge/discharge cycles.4. The battery core pack of claim 3 , comprising at least four cells with a core pack energy density of at least about 590 Wh/L at 30% SoC.5. The battery core pack of claim 2 , wherein said anode comprises lithium metal.6. The battery core pack of claim 1 , wherein said containment structure comprises a housing into which the cell stack is placed claim 1 , wherein the housing has openings at two ends.7. The battery core pack of claim 6 , further comprising at least one compliant pad claim 6 , wherein the at least one compliant pad is disposed between two cells claim 6 , and the thickness of the at least one compliant pad is determined by the expansion extent of the cell and is optimized between the variables of allowed battery pack volume and durometer rating of the compliant pad.8. The battery core pack of claim 7 , wherein said compliant pad comprises polyurethane sheet material with a Shore durometer of between about 40-90 claim 7 , and a Bashore resilience of between about 22-40%.9. The battery core pack of claim 8 , further comprising a cooling pad disposed between two ...

Anode active material, lithium secondary battery employing the same, and method of preparing the anode active material

An anode active material, a lithium battery including the anode active material, and a method of preparing the anode active material are provided. The anode active material includes an alloy containing silicon (Si), titanium (Ti) and nickel (Ni) elements, wherein the alloy includes a Si phase and an alloy phase, and a peak intensity ratio (I(111)/I(220)) of Si(111) to Si(220) plane in a X-ray diffraction spectrum of the Si phase is from about 1.0 to about 1.5.

Negative active material, negative electrode and lithium battery including the negative active material, and method of preparing the negative active material

A negative active material, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a silicon-based alloy including Si, Al, and Fe. The silicon-based alloy includes an active phase of silicon nanoparticles and an inactive phase of Si 3 Al 3 Fe 2 and Si 2 Fe in a ratios suitable to improve the lifespan of the lithium battery.

High energy density, high power density, high capacity, and room temperature capable rechargeable batteries

A high energy density, high power lithium metal anode rechargeable battery having volumetric energy density of >1000 Wh/L and/or a gravimetric energy density of >350 Wh/kg, that is capable of >1 C discharge at room temperature. In some embodiments, a high power lithium metal anode rechargeable battery of the present disclosure includes a lithium metal anode having a thickness of less than 20 μm and a ratio of anode capacity (n) to cathode capacity (p) in a discharged state, i.e., n/p, in a range of 0.8 to less than or equal to 1 or in a range of 0.9 to less than or equal to 1. In some embodiments, a high power lithium metal anode rechargeable battery of the present disclosure further includes a high-voltage cathode and a hybrid separator.

NEGATIVE ACTIVE MATERIAL FOR LITHIUM BATTERY, METHOD OF PREPARING THE NEGATIVE ACTIVE MATERIAL, AND LITHIUM BATTERY EMPLOYING THE NEGATIVE ACTIVE MATERIAL

A negative active material for a lithium battery with an improved cycle characteristic and capacity retention rate, and the negative active material comprises a plurality of particles comprising a plurality of first particles comprising Si, Ti, and Ni; and composite particles comprising a plurality of second particles in which at least one element selected from the group consisting of Cu, Fe, Ni, Au, Ag, Pd, Cr, Mn, Ti, B, and P is partially or completely deposited on surface(s) of other of first particles, a method of preparing the negative active material, and a lithium battery including a negative electrode including the negative active material.

Rechargeable Battery

Battery core packs employing minimum cell-face pressure containment devices and methods are disclosed for minimizing dendrite growth and increasing cycle life of metal and metal-ion battery cells. 1. A battery core pack , comprising:a plurality of cells forming a cell stack, each cell comprising at least one anode and at least one cathode, wherein metal ions are stripped from the anode during discharge and re-plated on the anode during charge; anda containment structure at least partially surrounding the cell stack, wherein said containment structure imparts a substantially uniform surface pressure at certain value to said cell stack.2. The battery core pack of claim 1 , wherein the substantially uniform surface pressure is at least about 50 psi.3. The battery core pack of claim 2 , wherein said cells maintain a discharge capacity of greater than 2.5 Ah over at least 100 charge/discharge cycles.4. The battery core pack of claim 3 , comprising at least four cells with a core pack energy density of at least about 590 Wh/L at 30% SoC.5. The battery core pack of claim 2 , wherein said anode comprises lithium metal.6. The battery core pack of claim 1 , wherein said containment structure comprises a housing into which the cell stack is placed claim 1 , wherein the housing has openings at two ends.7. The battery core pack of claim 6 , further comprising at least one compliant pad claim 6 , wherein the at least one compliant pad is disposed between two cells claim 6 , and the thickness of the at least one compliant pad is determined by the expansion extent of the cell and is optimized between the variables of allowed battery pack volume and durometer rating of the compliant pad.8. The battery core pack of claim 7 , wherein said compliant pad comprises polyurethane sheet material with a Shore durometer of between about 40-90 claim 7 , and a Bashore resilience of between about 22-40%.9. The battery core pack of claim 8 , further comprising a cooling pad disposed between two ...

Rechargeable battery

Battery core packs employing minimum cell-face pressure containment devices and methods are disclosed for minimizing dendrite growth and increasing cycle life of metal and metal-ion battery cells.

Negative electrode active material and secondary battery including the same

A negative electrode active material and a secondary battery including the same are provided. More particularly, the present disclosure relates to a negative electrode active material including a Si-metal alloy including Si, the Si being present in the Si-metal alloy in an amount of 66 at % or less, and at least a portion of the Si being crystalline Si. The negative active material can provide a high-capacity battery, which can retain high capacity due to little volumetric expansion during charging and discharging, thereby demonstrating an excellent life characteristic of the secondary battery. The negative electrode active material may include a Si-metal alloy including crystalline Si having a crystal grain size of 30 nm or less. Methods of preparing a negative electrode active material and methods of preparing a secondary battery including the same are also disclosed.

Negative active material, lithium battery including the material, and method for manufacturing the material

A negative active material having controlled particle size distribution of silicon nanoparticles in a silicon-based alloy, a lithium battery including the negative active material, and a method of manufacturing the negative active material are disclosed. The negative active material may improve capacity and lifespan characteristics by inhibiting (or reducing) volumetric expansion of the silicon-based alloy. The negative active material may include a silicon-based alloy including: a silicon alloy-based matrix; and silicon nanoparticles distributed in the silicon alloy-based matrix, wherein a particle size distribution of the silicon nanoparticles satisfies D1010 nm and D9075 nm.

MATERIAL OF PROTECTIVE LAYER, METHOD OF PREPARING THE SAME, PROTECTIVE LAYER FORMED OF THE MATERIAL, AND PLASMA DISPLAY PANEL INCLUDING THE PROTECTIVE LAYER

A material for preparing a protective layer for a PDP, which reduces discharge delay time, improves temperature dependency, and has enhanced ion strength; a method of preparing the same; a protective layer formed of the material; and a PDP including the protective layer. More particularly, a material for a protective layer that includes monocrystalline magnesium oxide doped with a rare earth element at an amount of 2.0×10−5−1.0×10−2 parts by weight per 1 part by weight of magnesium oxide (MgO), a method of preparing the monocrystalline magnesium oxide by crystallizing it at about 2,800° C., a protective layer formed of the same, and PDP including the protective layer.

Negative active material, method of preparing the same, negative electrode for lithium secondary battery including negative active material, and lithium secondary battery including negative electrode

A negative active material for a rechargeable lithium battery includes a SiAlFe alloy represented by Formula 1. The SiAlFe alloy includes a Si phase and an alloy phase, and the alloy phase includes Si, Al, and Fe in a ratio of atomic percentages of about 3:3:2: xSi-yAl-zFeFormula 1 wherein 50 at %x90 at %, 5 at %y30 at %, 5 at %z30 at %, and x+y+z=100 at %.

ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD OF MANUFACTURING THE ELECTRODE, AND LITHIUM SECONDARY BATTERY INCLUDING THE ELECTRODE

An electrode for a lithium secondary battery includes a silicon-based alloy, and has a surface roughness of about 1 to about 10 μm and a surface roughness deviation of 5 μm or less. A method of manufacturing the electrode includes mixing an electrode composition, milling the composition, coating the milled composition on a current collector, and drying the milled composition. A lithium secondary battery includes the electrode. 1. An electrode for a lithium secondary battery , comprising an electrode active material comprising a silicon-based alloy , the electrode having a surface roughness of about 1 to about 10 μm and a surface roughness deviation of about 5 μm or less.2. The electrode of claim 1 , wherein an amount of silicon in the silicon-based alloy is about 60 atom % to about 72 atom %.3. The electrode of claim 1 , wherein the silicon-based alloy comprises active silicon and inactive silicon.4. The electrode of claim 3 , wherein an amount of the active silicon is about 40 atom % to about 80 atom % based on a total amount of the active silicon and the inactive silicon in the silicon-based alloy.5. The electrode of claim 1 , wherein the surface roughness deviation is about 2 μm or less.6. The electrode of claim 1 , wherein the electrode has a mixed density of about 0.80 to about 0.90 g/cc.7. The electrode of claim 1 , wherein the silicon-based alloy comprises silicon and at least one additional metal selected from the group consisting of Al claim 1 , Ni claim 1 , Fe claim 1 , Mn claim 1 , and Ti.8. The electrode of claim 1 , wherein the silicon-based alloy comprises an alloy represented by Si-M-A claim 1 , wherein:M is Al, Ti or Fe;A is Ni, Fe or Mn; andM and A are different from each other.9. The electrode of claim 8 , wherein an amount of Si in the Si-M-A alloy is about 60 atom % to about 72 atom % claim 8 , an amount of M in the Si-M-A alloy is about 7 atom % to about 20 atom % claim 8 , and an amount of A in the Si-M-A alloy is about 15 atom % to about 20 ...

SOLID ELECTROLYTE, METHOD FOR PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY COMPRISING SOLID ELECTROLYTE AND SOLID ELECTROLYTE PARTICLES

Disclosed is a solid electrolyte including particles comprising LiTiAl(PO)(0≦x≦1) having a true density of about 2.20 to about 2.50 g/cm. 1. A solid electrolyte comprising:{'sub': (1+x)', '(2−x)', 'x', '4', '3, 'sup': 3', '3, 'particles comprising LiTiAl(PO)(0≦x≦1) having a true density of about 2.20 g/cmto about 2.50 g/cm.'}2. The solid electrolyte of claim 1 , wherein the LiTiAl(PO)(0≦x≦1) particles have a percentage of true density to the theoretical density ranging from about 77 volume % to about 80 volume %.3. The solid electrolyte of claim 1 , wherein the LiTiAl(PO)(0≦x≦1) particles are in a powder.4. The solid electrolyte of claim 1 , wherein the LiTiAl(PO)(0≦x≦1) particle is formed by a sol-gel method.5. The solid electrolyte of claim 4 , wherein the primary particle synthesized by the sol-gel method has a particle size distribution at 50%-point accumulation ranging from about 250 nm to about 500 nm claim 4 , and a particle size distribution at 90%-point accumulation ranging from about 350 nm to about 700 nm.6. The solid electrolyte of claim 1 , wherein the solid electrolyte has a ionic conductivity of about 2.33×10S/cm to about 2.43×10S/cm at a temperature of about 25° C.7. A rechargeable lithium battery comprisinga negative electrode including a negative active material;a positive electrode including a positive active material; and{'sub': (1+x)', '(2−x)', 'x', '4', '3, 'sup': 3', '3, 'a solid electrolyte comprising particles comprising LiTiAl(PO)(0≦x≦1) having a true density of about 2.20 g/cmto about 2.50 g/cm.'}8. The rechargeable lithium battery of claim 7 , wherein the LiTiAl(PO)(0≦x≦1) particles have a percentage of true density to the theoretical density ranging from about 77 volume % to about 80 volume %.9. The rechargeable lithium battery of claim 7 , wherein the LiTiAl(PO)(0≦x≦1) particles are in a powder.10. The rechargeable lithium battery of claim 7 , wherein the LiTi(PO)(0≦x≦1) particle is formed by a sol-gel method.11. The rechargeable ...

SILICON ALLOY BASED NEGATIVE ACTIVE MATERIAL AND COMPOSITION INCLUDING SAME AND METHOD OF PREPARING SAME AND LITHIUM RECHARGEABLE BATTERY

A silicon alloy-based negative active material includes a particle including a core including a silicon alloy-based material, and a coating layer including an organic binder. 1. A silicon alloy-based negative active material , comprising:a particle including:a core including a silicon alloy-based material; anda coating layer including an organic binder.2. The silicon alloy-based negative active material as claimed in claim 1 , wherein the organic binder includes polyimide claim 1 , polyamide claim 1 , polyamideimide claim 1 , aramid claim 1 , polyarylate claim 1 , polymethylethylketone claim 1 , polyetherimide claim 1 , polyethersulfone claim 1 , polysulfone claim 1 , polyphenylene sulfide claim 1 , polytetrafluoroethylene claim 1 , or a combination thereof.3. The silicon alloy-based negative active material as claimed in claim 1 , wherein the organic binder is included in an amount of about 1 wt % to about 10 wt % based on 100 wt % of the silicon alloy-based negative active material.4. The silicon alloy-based negative active material as claimed in claim 1 , wherein the silicon alloy-based material is an alloy represented by Si-Q claim 1 , wherein Q is not Si and is an alkali metal claim 1 , an alkaline-earth metal claim 1 , a group 13 to 16 elements claim 1 , a transition element claim 1 , a rare earth element claim 1 , or a combination thereof.5. The silicon alloy-based negative active material as claimed in claim 4 , wherein the silicon alloy-based material is SiTiNi claim 4 , SiAlMn claim 4 , SiAlFe claim 4 , SiFeCu claim 4 , SiCuMn claim 4 , SiMgAl claim 4 , SiMgCu claim 4 , or a combination thereof.6. The silicon alloy-based negative active material as claimed in claim 4 , wherein the organic binder includes polyamideimide claim 4 , polyetherimide claim 4 , or a combination thereof.7. The silicon alloy-based negative active material as claimed in claim 1 , wherein the silicon alloy-based material is included in an amount of about 50 wt % to about 99 wt % based ...

COMPOSITE ANODE ACTIVE MATERIAL, ANODE INCLUDING THE SAME, LITHIUM BATTERY INCLUDING THE ANODE, AND METHOD OF PREPARING THE COMPOSITE ANODE ACTIVE MATERIAL

A composite anode active material, an anode including the composite anode active material, a lithium battery including the anode, and a method of preparing the composite anode active material, the composite anode active material including a core including a ternary alloy, the ternary alloy being capable of intercalating and deintercalating lithium; and a carbonaceous coating layer on the core. 1. A composite anode active material , comprising:a core including a ternary alloy, the ternary alloy being capable of intercalating and deintercalating lithium; anda carbonaceous coating layer on the core.2. The composite anode active material as claimed in claim 1 , wherein the ternary alloy comprises:a matrix inert to lithium; anda crystalline phase dispersed in the matrix, the crystalline phase being capable of intercalating and deintercalating lithium.3. The composite anode active material as claimed in claim 2 , wherein the crystalline phase comprises at least one element selected from the elements of Group 14 of the periodic table of the elements.4. The composite anode active material as claimed in claim 2 , wherein the crystalline phase comprises at least one element selected from the group of silicon claim 2 , germanium claim 2 , and tin.5. The composite anode active material as claimed in claim 2 , wherein the crystalline phase comprises silicon.6. The composite anode active material as claimed in claim 2 , wherein the crystalline phase comprises nano-sized crystallite.7. The composite anode active material as claimed in claim 6 , wherein the crystallite has a size of about 33.5 nm or less.8. The composite anode active material as claimed in claim 6 , wherein the crystallite has a size of about 30 nm to about 33 nm.9. The composite anode active material as claimed in claim 2 , wherein the crystalline phase exhibits a peak with a full width at half maximum (FWHM) of about 0.245° or greater at a diffraction angle (2θ) of 28.50°±0.10° in X-ray diffraction spectra.10. ...

ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE ELECTRODE

In an aspect, an electrode active material for a lithium secondary battery, the electrode active material including a silicon-based alloy and a coating film containing a polymer that includes a 3,4-ethylenedioxythiophene repeating unit and an oxyalkylene repeating unit, coated on the surface of the silicon-based alloy are provided. 1. An electrode active material for a lithium secondary battery , the electrode active material comprising:a silicon-based alloy; anda coating film containing a polymer that includes a 3,4-ethylenedioxythiophene repeating unit and an oxyalkylene repeating unit, coated on the surface of the silicon-based alloy.2. The electrode active material of claim 1 , wherein an amount of the oxyalkylene repeating unit in the polymer is in a range of about 1 to about 99 mol % claim 1 , and an amount of the 3 claim 1 ,4-ethylenedioxythiophene repeating unit in the polymer is in a range of about 1 to about 99 mol %.3. The electrode active material of claim 1 , wherein an amount of the polymer is in a range of about 0.1 to about 5 parts by weight based on 100 parts by weight of the silicon-based alloy.5. The electrode active material of claim 1 , wherein a weight average molecular weight of the polymer is in a range of about 3000 to about 200 claim 1 ,000.6. The electrode active material of claim 1 , wherein an amount of silicon in the silicon-based alloy is in a range of about 60 to about 72 atom %.7. The electrode active material of claim 1 , wherein the silicon-based alloy comprises an active silicon and an inactive silicon.8. The electrode active material of claim 7 , wherein an amount of the active silicon in the silicon-based alloy is in a range of about 40 to about 80 atom % based on the total amount of the active silicon and the inactive silicon.9. The electrode active material of claim 1 , wherein the silicon-based alloy comprises silicon claim 1 , and at least one metal selected from aluminum (Al) claim 1 , nickel (Ni) claim 1 , iron (Fe) claim ...

High Salt Concentration Electrolytes For Rechargeable Lithium Battery

A rechargeable lithium battery is an electrochemical energy storage device that includes a cathode, an anode, and a liquid electrolyte as active components. The present disclosure relates to new rechargeable batteries that include a liquid electrolyte with high salt concentration that enables efficient deposition/dissolution of lithium metal on anode, during charge/discharge cycles. The battery can attain high energy density and improved cycle life. 1. A rechargeable battery , comprising:a cathode;a lithium metal anode; and{'sub': '2', 'a liquid electrolyte comprising a lithium imide salt with a fluorosulfonyl (FSO) group,'}wherein the electrolyte is an organic solvent with lithium imide salt concentration of at least 2 moles per liter of the organic solvent.2. The battery of claim 1 , wherein the lithium imide salt is or comprises LiN(FSO).3. The battery of claim 1 , wherein the lithium imide salt consists essentially of LiN(F SO).4. The battery of claim 1 , wherein the lithium imide salt is or comprises LiN(FSO) claim 1 , LiN(FSO)(CFSO) claim 1 , LiN(FSO)(CFSO) claim 1 , and any combination thereof.5. The battery of claim 1 , wherein the electrolyte has lithium salt concentration between 2 to 10 moles per liter of the organic solvent.6. The battery of claim 1 , wherein the electrolyte contains a cyclic carbonate selected from ethylene carbonate or propylene carbonate claim 1 , their derivatives claim 1 , and any combinations or mixtures thereof claim 1 , as the organic solvent.7. The battery of claim 1 , wherein the electrolyte contains a cyclic ether selected from tetrahydrofuran or tetrahydropyran claim 1 , their derivatives claim 1 , and any combinations and mixtures thereof as the organic solvent.8. The battery of claim 1 , wherein the electrolyte contains a glyme selected from dimethoxyethane claim 1 , diethoxyethane claim 1 , triglyme claim 1 , or tetraglyme claim 1 , their derivatives claim 1 , and any combinations and mixtures thereof as the organic ...

HIGH ENERGY DENSITY, HIGH POWER DENSITY, HIGH CAPACITY, AND ROOM TEMPERATURE CAPABLE "ANODE-FREE" RECHARGEABLE BATTERIES

A high energy density, high power lithium metal anode rechargeable battery having volumetric energy density of >1000 Wh/L and/or a gravimetric energy density of >350 Wh/kg, that is capable of >1 C discharge at room temperature. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. A high capacity lithium metal anode cell rechargeable battery having a capacity of greater than 1 Ah , comprising:{'sup': '2', 'a high energy density cathode, wherein the energy density is greater than 4 mAh/cm;'}an ultra-thin lithium metal anode having a thickness of less than 20 μm, wherein the lithium metal anode has an n/p ratio of less than or equal to 1;a non-ion conducting separator having a thickness of less than 12 μm; andone or more of a liquid or solid electrolyte, wherein the one or more of the liquid or solid electrolyte is capable of discharging faster than 1 C at room temperature, and has more than 100 cycles until 80% capacity retention.6. A high capacity lithium metal anode cell rechargeable battery having a capacity of greater than 1 Ah , comprising:{'sup': '2', 'a high energy density cathode, wherein the energy density is greater than 3 mAh/cm;'}an ultra-thin lithium metal anode having a thickness of less than 15 μm, wherein the lithium metal anode has an n/p ratio of less than or equal to 1, a non-ion conducting separator having a thickness of less than 12 μm; andone or more of a liquid or solid electrolyte, wherein the one or more of the liquid or solid electrolyte is capable of discharging faster than 1 C at room temperature, and has more than 200 cycles until 80% capacity retention.7. A high capacity lithium metal anode cell rechargeable battery having a capacity of greater than 1 Ah , comprising:an ultra-thin lithium metal anode having a thickness of less than 20 μm, in fully discharge state; anda cathode having a cathode capacity that is greater than the capacity of excess lithium on the anode and an n/p ratio of less than or equal to 1.8. The high capacity ...

High salt concentration electrolytes for rechargeable lithium battery

A rechargeable lithium battery is an electrochemical energy storage device that includes a cathode, an anode, and a liquid electrolyte as active components. The present disclosure relates to new rechargeable batteries that include a liquid electrolyte with high salt concentration that enables efficient deposition/dissolution of lithium metal on anode, during charge/discharge cycles. The battery can attain high energy density and improved cycle life.

Electrode for lithium secondary battery, manufacturing method thereof and lithium secondary battery comprising the same

Negative active material, lithium battery including the material, and method for manufacturing the material

High energy density, high power density, high capacity, and room temperature capable "anode-free" rechargeable batteries

Protective layer, composite for forming the protective layer, method of forming the protective layer, and plasma display panel including the protective layer

Provided are a protective layer made of magnesium oxide containing at least one rare earth element selected from the group consisting of the rare earth elements, in which the content of the at least one rare earth element is from about 5.0×10 −5 to about 6.0×10 −4 per 1 part by weight of the magnesium oxide, a composite for forming the protective layer, a method of forming the protective layer, and a plasma display panel including the protective layer. The protective layer can reduce a discharge delay time and the temperature dependency of the discharge delay time, and thus, is suitable for single scan and an increase in Xe content.

High salt concentration electrolytes for rechargeable lithium battery

Material of protective layer, method of preparing the same, protective layer formed of the material, and plasma display panel including the protective layer

保護膜材料とその製造方法、保護膜及びプラズマディスプレイパネル

【課題】放電遅延時間を短縮させ、温度依存性を改善し、増進されたイオン強度を有するＰＤＰの保護膜を製造するための材料、その製造方法、これより形成された保護膜及び該保護膜を備えるＰＤＰを提供する。 【解決手段】本発明によれば、ＭｇＯ１質量部を基準に２．０×１０ −５ 〜１．０×１０ −２ 質量部の希土類元素がドーピングされた酸化マグネシウム単結晶を含む保護膜の材料、約２８００℃の温度で結晶化を通じて前記酸化マグネシウム単結晶を製造する方法、これより形成された保護膜及び前記保護膜を含むＰＤＰを提供する。 【選択図】図４

Solid electrolyte for rechargeable lithium battery and rechargeable lithium battery including same

A solid electrolyte for a rechargeable lithium battery includes a compound represented by Li 1+x Ti 2−x Al x M y (PO 4 ) 3-y , and a glass-based oxide selected from LiPO 3 , Li 2 O—B 2 O 3 , and combinations thereof. A rechargeable lithium battery includes the solid electrolyte.

保護膜の材料、その製造方法、それを利用して形成した保護膜を備えるｐｄｐ

【課題】保護膜形成用物質、該保護膜、該保護膜を採用したプラズマディスプレーパネルを提供する。 【解決手段】従来の人為的な反応ガス条件で生成した酸化マグネシウムを含む保護膜と異なって、大気中で自然酸化して形成した酸化マグネシウムを利用して形成した保護膜である。酸化マグネシウムは、欠陥が少なく、ＰＤＰなどに使われる保護膜として優秀な特性を示す。また、酸化マグネシウムは、多様な特性を有し、約２ｐｐｍ以下の不純物を含む。同時に、保護膜の利点は、保護膜を採用したＰＤＰの利点として作用しうる。 【選択図】図１

Positive active material for rechargeable lithium battery and rechargeable lithium battery comprising same

Disclosed is a positive active material for a rechargeable lithium battery, which includes an active material capable of reversibly intercalating/deintercalating lithium and lithium polysulfide.

Battery cell/pack testing devices, systems including such devices, and methods and software for the same

Testing devices for testing target test devices each composed of one or more battery cells, such as battery cells and battery packs. In some embodiments, a testing device may be considered self-contained in that it may include sufficient onboard systems and features to allow the testing device to conduct testing on one or more target test devices with minimal inputs, such as electrical power, higher-level instructions, and/or control inputs. In some embodiments, a testing device may include an explosion- and/or fire-proof or -resistant enclosure. In some embodiments, components of a testing device may be modularized for easy reconfiguring for different testing and/or different target test devices. In some embodiments, a plurality of testing devices can be controlled by a central testing controller. Related methods and systems are also disclosed.

マグネシウム酸化物粒子が表面に付着されたマグネシウム酸化物含有膜を含んだプラズマディスプレイパネル用保護膜、その製造方法、及び該保護膜を具備したプラズマディスプレイパネル

【課題】マグネシウム酸化物粒子が表面に付着されたマグネシウム酸化物含有膜を含んだプラズマディスプレイパネル用保護膜、その製造方法、及び該保護膜を具備したプラズマディスプレイパネルを提供する。 【解決手段】マグネシウム酸化物含有膜の表面にマグネシウム酸化物含有粒子が付着され、マグネシウム酸化物含有粒子がＭｇ欠陥不純物中心を有する保護膜、この製造方法、及びこれを具備したプラズマディスプレイに係り、該マグネシウム酸化物含有粒子が表面に付着されたマグネシウム酸化物含有膜を含んだ保護膜は、プラズマイオンに強く、かつ電子放出効果にすぐれるが、これを利用すれば、低電圧駆動が可能であって、放電効率が向上したプラズマディスプレイパネルを得ることができる。 【選択図】図２

Material for preparing protective layer and plasma display panel comprising the protective layer

A plasma display panel (PDP) including a protective layer and a material for preparing the protective layer that can be easily fabricated and has little defects, includes a magnesium oxide (MgO) powder including a cathode rays emission spectrum having a first emission peak in a wavelength in the range of 300 to 450 nm, a second emission peak in a wavelength in the range of 650 to 750 nm, and an intensity ratio between 1:0.15 and 0.40 as an intensity ratio of the second emission peak with respect to the first emission peak.

Plasma-Anzeigetafel mit Schutzschicht und Verfahren zur Herstellung der Schutzschicht

Plasma display panel including protective layer and method of forming the protective layer

Solid electrolyte, method for preparing same, and rechargeable lithium battery comprising solid electrolyte and solid electrolyte particles

Disclosed is a solid electrolyte including particles comprising Li (1+x) Ti (2-x) Al x (PO 4 ) 3 (0≦x≦1) having a true density of about 2.20 to about 2.50 g/cm 3 .