Electrode paste applicator process

An apparatus and process for applying an electrode paste onto a substrate for use in an electrolytic cell. The apparatus includes a mixing device which mixes, and then dispenses, predetermined amounts of an electrode paste and a polymerization initiator onto a substrate. The mixing device is constructed so as to substantially preclude polymerization of the electrode paste during such mixing, as well as to preclude polymerization prior to application of the mixture onto the substrate.

Electrolytic cell and electrolytic process

An electrolytic cell having an electrolyte, a first and second electrode and a primer comprised of lithium polysilicate and carbon, applied to at least one of the first and second electrodes, wherein the primer is chemically and electrochemically stable and electronically conductive so as to decrease interfacial resistance in the cell to enhance columbic efficiency.

Cavitand electrolytic cell and electrolytic process

An electrolytic cell, such as a rechargeable lithium battery, having cavitands associated with a metal ion source-electrode and an electrolyte. The cavitands, which are anchored to the electrode by a polymer leash, are capable of releasably attracting particular ions, such as lithium ions, which are migrating from the electrolyte, toward the surface of the electrode during electrodeposition. The polymer leash serves to continuously maintain the cavitands at a predetermined distance away from the surface of the electrode, regardless of surface area fluctuations, typically caused during deposition and dissolution of the particular ions. Accordingly, the cavitands facilitate substantially uniform electrodeposition of the particular ions, which, in turn, substantially suppresses and/or controls the formation and growth of a passive film or layer, on the electrode surface, which may otherwise promote the formation of dendrites.

Primer with electrochemically inert particulate and process for fabricating same

A primer material for use with an electrode. The primer includes a fluid medium and electrochemically inert particulate having a dimensional thickness greater than the dimensional thickness of the fluid medium after the fluid medium is at least partially dried.

Particulate interface for electrolytic cells and electrolytic process

An electrolytic cell and electrolytic process wherein the cell includes a metal anode, such as a lithium anode, a cathode and an electrolyte. The surface of the anode is treated with a substantially non-continuous electronically conductive particulate coating, wherein the particulate may consist of carbon. This non-continuously applied particulate coating not only provokes the formation of a stable passivating layer (toward suppression of dendritic growth), but it also serves to lower and substantially sustain interfacial resistance at the surface of the anode during the life of the cell.

Molecular complexes for use as electrolyte components

An molecular complex is provided which includes a linear polymer associated with a cyclic molecule to form a rotaxane of the general formula, см. иллюстрацию в PDF-документе where R1 and R2 are blocking end groups of size and character sufficient to prevent dethreading of the rotaxane and said R1 and R2 the same or different; where the cyclic molecule comprises a cyclic skeleton and at least one A functional group, said functional group attached to the cyclic skeleton; where A is selected from the group consisting of polymerizable functional groups, cation complexing groups, anion complexing groups and ionic species; and wherein at least one of R1, R2 and A are selected from the group consisting of cation complexing groups, anion complexing groups and ionic species. The molecular complex may used in an electrolyte.

Electrode mask application process for forming an electrolytic cell

The present invention is directed to an electrode mask for use in an electrolytic cell, and an associated process for fabricating such a cell with an electrode mask. The electrode mask is applied to a limited portion of the active material of at least one of the first and second electrodes so that the peripheral edge of the electrode mask and associated electrodes are in planer relationship with each other. In addition, the electrode mask can be applied in a manner which enables a fully fabricated electrolytic cell to be manufactured with any desired geometric configuration, merely by altering the electrode mask application pattern, and a die-cutter to cut an assembled cell in conformance with the applied pattern of the electrode mask.

Process for making a solid state cell

A solid state electrochemical laminar single cell comprising: an alkali metal anode, a solid ionically conducting electrolyte, a composite cathode, and a current collector, wherein said electrolyte is interposed between said alkali metal anode and said cathode and said cathode is interposed between said electrolyte and said current collector, said cell being capable of generating a discharge current per unit area greater than or equal to 50 milliamperes/cm2 at room temperature; and a process for producing the cell is disclosed.

Poly-sulfide and carbon electrode material and associated process

An electrolytic cell, such as a rechargeable lithium battery, having a poly-sulfide compound attached to the cathode provides a reversible cell capacity of at least 200 mAh/g. Fabrication of an electrolytic cell containing a poly-sulfide compound which is electronically conductive and insoluble in a liquid electrolyte.

Ion-conductive polymer and electrolyte additives

Compounds are provided for use in an electrolyte comprising repeating unit selected from the group consisting of cyclic and heterocyclic species having y carbon atoms and z heteroatoms, X, and where y is 4, 5 or 6 and z is 0, 1 or 2. The heteroatom is selected from the group consisting of O, S and N. The repeating unit is further substituted by four to six pendant groups having the formula, (CHR1)m O(CHR1 CHR1 O)n Y, where the majority of pendant groups comprises at least two O and further, in which m is 0 or 1, in which n is in the range of 0 to 25, in which each R1 is the same or different and R1 is selected from the group consisting of H, alkyl, allylic and alkenyl radicals having 1 to 18 carbon atoms and Y, and in which each Y is the same or different and Y is a functional group selected from the group consisting of polymerizable functionalities, plasticizing agents and ionic species. Electrolytes, plasticizers and macroions prepared from these compounds are described.

Electrode materials having carbon particles with nano-sized inclusions therewithin and an associated electrolytic and fabrication process

An electrode for use in an electrolytic cell and an associated process, wherein the electrode includes a current collecting substrate, an electrode active material having at least one component including inclusions no greater than one micron within a carbon particle. The carbon particle has a dibutyl phthalate (DBP) absorption rate preferably within a range of approximately 52 ml/100 g to approximately 400 ml/100 g.

Secondary electrolytic cell and electrolytic process

An electrolytic cell and electrolytic process wherein the cell includes a metal anode (such as a lithium anode), a cathode and an electrolyte. A surface layer which is applied to the metal anode enables transfer of ions from the metal anode to the electrolyte and thus allows the ions to pass back into contact with the metal anode. The surface layer is also electronically conductive so that the ions will be uniformally attracted back onto the metal anode during electrodeposition to, in turn, substantially suppress dendrite growth and, in turn, substantially increase the cycle life of the cell.

Radiation cured solid aqueous electrolytes and electrochemical devices employing the same

A solid aqueous electrolyte for use in an electrochemical device produced by the process comprising the steps of: forming a homogeneous mixture of an ionically conductive material, water and a radiation curable material, said radiation curable material being capable of crosslinking upon exposure to radition or heat; and subjecting said mixture to ionizing radiation or heat to thereby crosslink said curable material and an electrochemical cell including the electrolyte are disclosed.

High power solid state electrochemical laminar cell

A solid state electrochemical laminar signal cell comprising: an alkali metal anode, a solid ionically conducting electrolyte, a composite cathode, and a current collector, wherein said electrolyte is interposed between said alkali metal anode and said cathode and said cathode is interposed between said electrolyte and said current collector, said cell being capable of generating a discharge current per unit area greater than or equal to 50 milliamperes/cm2 at room temperature; and a process for producing the cell is disclosed.

Method for producing solid state electrochemical laminar cell utilizing cathode rolling step

A process for making a solid state alkali metal anode cell comprising the steps of: coating a radiation or thermally polymerizable cathode composition layer onto a current collector layer; rolling the external surface of said cathode composition to provide an external surface having minimal surface discontinuities; coating an ionically conductive, radiation or thermally polymerizable electrolyte composition layer onto said cathode composition layer; partially or totally curing said cathode composition and said electrolyte composition; applying a laminar anode onto said electrolyte composition layer to form a cell assembly and the cell produced thereby is disclosed.

Current collector device

A current collector device for a rechargeable electrolytic cell and method for manufacturing same. The device includes an aluminum current collector having a substantially reduced oxidation layer relative to its native oxide layer, to, in turn, exhibit a relatively low interfacial impedance. A layer of electrode material is applied and adhered to the surface of the aluminum current collector to enable electrochemical activity with the particular ions in an electrolyte within the electrolytic cell. A primer may be applied between the electrode material and the aluminum current collector, wherein the primer serves to substantially preclude re-growth of the oxide layer which would otherwise occur absent such a primer.

Lithium ion electrolytic cell and method for fabricating same

The present invention relates to secondary electrolytic cells, and more particularly, to lithium ion electrolytic cells with an inorganic binder and an associated process for fabrication of same. A binder material is mixed with an active material for eventual application onto the surface of a first and/or second electrode. The binder material is soluble with the active material yet insoluble with respect to the associated organic electrolyte.

Electrolytic cell having a controlled electrode surface interface

The present invention is directed to an electrolytic cell having a controlled electrode surface interface, and, an associated manufacturing and chemical process. The electrolytic cell includes an electrode with a carbon surface, and, an electrolyte having a solvent. An additive, associated with at least one of the electrolyte or first and second electrodes, reacts with the carbon surface to form a passivating layer so as to block chemical interaction between the carbon surface and the solvent. Furthermore, the additive will not result in gas formation upon its decomposition.

Current collector device and method of manufacturing same

A current collector device for a rechargeable electrolytic cell and method for manufacturing same. The device includes an aluminum current collector having a substantially reduced oxidation layer relative to its native oxide layer, to, in turn, exhibit a relatively low interfacial impedance. A layer of electrode material is applied and adhered to the surface of the aluminum current collector to enable electrochemical activity with the particular ions in an electrolyte within the electrolytic cell. A primer may be applied between the electrode material and the aluminum current collector, wherein the primer serves to substantially preclude re-growth of the oxide layer which would otherwise occur absent such a primer.

Solid state electrochemical cell having porous cathode current collector

A solid state laminar electrochemical cell comprising: an alkali metal anode layer; a solid ionically conducting electrolyte layer; and a cathode/current collector layer; wherein said electrolyte layer is interposed between said alkali metal anode layer and said cathode/current collector layer and wherein said cathode/current collector layer comprises an electrically conductive substrate having a plurality of surface voids and a composite cathode composition comprising an intercalation compound, an electrically conductive filler and an ionically conductive electrolyte, said cathode composition being coated on the surface of said substrate facing said electrolyte layer and being maintained in the voids of said surface is disclosed.

Lightweight battery container and method for fabrication of same

A container for electrolytic cells, and an electrolytic cell associated with such a container. The container includes at least two container half members attachable to each other in a mating configuration. At least one barrier member defines a cell containing region within the container. Furthermore, a cover member, in combination with an adjacent barrier member, defines a lead housing region. Electrolytic cells, such as stacks of conventional flat battery cells, have a portion positioned within the cell containing region, while the portion of the electrolytic cells having electrically exposed leads are entrapped in electrically conducting contact with each other and another electrical lead associated with the cover member, in the lead housing region. The electrical lead associated with the cover member has a portion which extends externally to the container, so as to enable electrical contact with an external device.

Electrochemical cell having a controlled electrode surface and associated fabrication and chemical process

An electrochemical cell, and an associated process, wherein the cell includes a controlled electrode surface comprising an electrode with a carbonaceous surface, an electrolyte and a reduced additive. The reduced additive is formulated from an additive which is either soluble or insoluble in the solvated electrolyte prior to reduction. The invention further includes a passivating layer at the carbonaceous electrode/electrolyte interface. The passivating layer includes the additive and/or the reduced additive. This passivating layer substantially precludes contact between electrolyte solvent and the carbonaceous surface of the electrode to, in turn, substantially prevent gas formation within the cell, which would otherwise result from decomposition of the solvent upon contact with the carbonaceous surface. Also, the additive and/or the reduced additive will likewise be substantially precluded from generating a gas upon its decomposition.

Electrolytic cell using small particle graphite

An electrolytic cell using small particle graphite and an electrolytic process wherein the electrolytic cell includes an electrode constructed with a lithium source and another electrode constructed with relatively small graphite particles. The graphite particles possess physical attributes which serve to increase the reversible capacity of the graphite beyond the known theoretical capacity of 372 mAh/g of LiC6.

Current collector device and method of manufacturing same

A current collector device for an electrolytic cell and method for manufacturing same. The device includes an aluminum current collector having a substantially reduced oxidation layer relative to its native oxide layer, to, in turn, exhibit a relatively low interfacial resistance. A coating of material which includes an etching agent and a primer are both applied to the surface of the aluminum current collector in a single mixture so that actual etching and bonding of the primer to the surface can be accomplished by a single step. It is also contemplated that the primer material act as an electrode material which enables electrochemical activity with the particular ions in an electrolyte within the electrolytic cell.

Electrode paste applicator apparatus

An apparatus and process for applying an electrode paste onto a substrate for use in an electrolytic cell. The apparatus includes a mixing device which mixes, and then dispenses, predetermined amounts of an electrode paste and a polymerization initiator onto a substrate. The mixing device is constructed so as to substantially preclude polymerization of the electrode paste during such mixing, as well as to preclude polymerization prior to application of the mixture onto the substrate.

Lithium ion electrolytic cell having a controlled electrode surface interface

The present invention is directed to a lithium ion electrolytic cell having a controlled electrode surface interface, and, an associated electrochemical process. The lithium ion electrolytic cell includes an electrode with a carbonaceous surface and a passivating layer, and, an electrolyte having a solvent. The passivating layer includes lithium, carbon and at least one of an additive or the product of interaction of the additive with the carbonaceous surface. The passivating layer has, as measured by X-ray photoelectron spectroscopy, a relative thickness index within the range of about from 10 to about 90, and a lithium ion content index in the range from about 0.1 to about 0.7.

Electrolytic cell and process for treating an alkali metal electrode

An electrolytic cell and process for treating an alkali metal electrode, wherein an additive is applied to the electrode so as to result in a predominately additive interface between the electrode and an electrolyte. The additive interface is ionically conductive yet non-ionic. In addition, the additive interface is substantially inert when in contact with the electrode, while being substantially insoluble in the electrolyte.

Molecular complexes for use as electrolyte components

An molecular complex is provided which includes a linear polymer associated with a cyclic molecule to form a rotaxane of the general formula, см. иллюстрацию в PDF-документе where R1 and R2 are blocking end groups of size and character sufficient to prevent dethreading of the rotaxane and said R1 and R2 the same or different; where the cyclic molecule comprises a cyclic skeleton and at least one A functional group, said functional group attached to the cyclic skeleton; where A is selected from the group consisting of polymerizable functional groups, cation complexing groups, anion complexing groups and ionic species; and wherein at least one of R1, R2 and A are selected from the group consisting of cation complexing groups, anion complexing groups and ionic species. The molecular complex may used in an electrolyte.

Electrochromic printing medium

An electrochromic printing medium comprising a solid support having an electrochromic composition coated thereon comprising an electrolyte matrix, a radiation-inert ionically conducting liquid, and an ionizable alkali or ammonium slat; a method for preparing such medium; and a method for forming an image employing such electrochromic printing medium.

Solid state electrochemical cell having microroughened current collector

A solid state laminar electrochemical cell comprising: an alkali metal anode layer; a solid ionically conductive electrolyte layer; a cathode composition layer; and a current collector; wherein said electrolyte layer is interposed between said alkali metal anode layer and said cathode layer and said cathode layer is interposed between said electrolyte layer and said current collector, the surface of said current collector which contacts said electrolyte layer being microroughened to enable the cathode layer to tightly adhere to said current collector is disclosed.

Electrolytic cell and electrolytic process within a carbon dioxide environment

An electrolytic cell, such as a rechargeable lithium battery, fabricated in a carbon dioxide atmosphere, having a lithium carbonate passivating layer associated with a lithium ion source electrode and an electrolyte. Fabrication of an electrolytic cell containing an acrylic polymer paste cathode, anode and electrolyte increases the efficiency of the polymer initiator and facilitates free radical chain growth polymerizations.

Ion-conductive polymer and electrolyte additives

Compounds are provided for use in an electrolyte comprising repeating unit selected from the group consisting of cyclic and heterocyclic species having y carbon atoms and z heteroatoms, X, and where y is 4, 5 or 6 and z is 0, 1 or 2. The heteroatom is selected from the group consisting of O, S and N. The repeating unit is further substituted by four to six pendant groups having the formula, (CHR1)m O(CHR1 CHR1 O)n Y, where the majority of pendant groups comprises at least two O and further, in which m is 0 or 1, in which n is in the range of 0 to 25, in which each R1 is the same or different and R1 is selected from the group consisting of H, alkyl, allylic and alkenyl radicals having 1 to 18 carbon atoms and Y, and in which each Y is the same or different and Y is a functional group selected from the group consisting of polymerizable functionalities, plasticizing agents and ionic species. Electrolytes, plasticizers and macro-ions prepared from these compounds are described.

Current collector device

A current collector device for an electrolytic cell and method for manufacturing same. The device includes an aluminum current collector having a substantially reduced oxidation layer relative to its native oxide layer, to, in turn, exhibit a relatively low interfacial resistance. A coating of material which includes an etching agent and a primer are both applied to the surface of the aluminum current collector in a single mixture so that actual etching and bonding of the primer to the surface can be accomplished by a single step. It is also contemplated that the primer material act as an electrode material which enables electrochemical activity with the particular ions in an electrolyte within the electrolytic cell.

High capacity electrode paste and process for fabrication

The present invention is directed to a high capacity electrode paste and process for the fabrication of same. The resultant paste has a plurality of electrochemically active particles dispersed in solution. Additionally, during fabrication of the electrode paste, the electrochemically active material is subjected to a grinding step. After grinding the material to the desired particle sizes, the grinding medium is removed. However, the particles remain dispersed in solution, even after removal of the grinding medium. Accordingly, each of the individual particles have at least a portion of their respective surfaces in contact with the solution.

Small particle electrodes by aerosol process

A method for preparing an electrode is provided including generating aerosol droplets of a precursor capable of being converted into a component of an electrode in a carrier liquid; converting the droplets into precursor particles; converting the precursor particles into particles of the electrode component; and depositing the electrode component onto an electrically conductive substrate. The electrode is characterized by a highly porous structure having a surface area in the range of >4 m2 /g and a discharge density at least 1.5 times greater than comparable electrodes prepared by conventional methods.

Process for fabricating electrolytic cell having an intermdiate sub-component connecting layer and process

The present invention is directed to an electrolytic cell and associated process for fabrication, wherein the cell utilizes an intermediate sub-component connecting layer. This layer comprises an electrolyte which, in an at least partially cured state, is at least partially sandwiched between an electrolyte on a first sub-component and an electrolyte on a second sub-component. Prior to full curing of the intermediate sub-component connecting layer, the cell is oriented into a desired product configuration. Once such a configuration is obtained, the intermediate sub-component connecting layer is fully cured to, in turn, maintain the cell in the desired product configuration without concern of misalignment or mechanical degradation between the various sub-components and/or the cell.

Lithium ion electrolytic cell having a controlled electrode surface interface

The present invention is directed to a lithium ion electrolytic cell having a controlled electrode surface interface, and, an associated electrochemical process. The lithium ion electrolytic cell includes an electrode with a carbonaceous surface and a passivating layer, and, an electrolyte having a solvent. The passivating layer includes lithium, carbon and at least one of an additive or the product of interaction of the additive with the carbonaceous surface. The passivating layer has, as measured by X-ray photoelectron spectroscopy, a relative thickness index within the range of about from 10 to about 90, and a lithium ion content index in the range from about 0.1 to about 0.7.

Electrochromic printing medium

An electrochromic printing medium comprising a solid support having an electrochromic composition coated thereon comprising an electrolyte matrix, a radiation-inert ionically conducting liquid, and an ionizable alkali or ammonium slat; a method for preparing such medium; and a method for forming an image employing such electrochromic printing medium.

Container housing for electrolytic cells, electrolytic cell and associated container housing and method for producing the same

Behältergehäuse für elektrolytische Zellen mit: – zumindest einem ersten und zweiten Behälterteil (12, 14), welche zusammenpassend aneinander anbringbar sind, – zumindest einem Begrenzungsteil (19a, 19b), das sich von einer inneren Oberfläche von zumindest einem der Behälterteile (12, 14) erstreckt und das zumindest einen Abschnitt aufweist, der sich zu dem anderen Behälterteil (14, 12) erstreckt, wenn die Behälterteile (12, 14) zusammengesetzt sind, wobei das zumindest eine Begrenzungsteil (19a, 19b) einen zellenaufnehmenden Bereich (50, 51) bestimmt, wenn die Behälterteile zusammengesetzt sind, – zumindest einem Abdeckteil (17, 18), das zumindest einem der Behälterteile zugeordnet ist und relativ zu dem Begrenzungsteil (19a, 19b) in eine Position derart positionierbar ist, daß zumindest ein Zellenanschluß (34, 35), welcher der zumindest einen elektrolytischen Zelle (30, 31) zugeordnet ist, dadurch abdeckbar ist und so einen Anschlußgehäusebereich (55) zwischen dem Begrenzungsteil (19a, 19b) und dem Abdeckteil (17, 18) bestimmt, wobei der Anschlußgehäusebereich (55) ausgelegt... Container housing for electrolytic cells with: - at least one first and second container part (12, 14), which can be attached to one another in a matching manner, - at least one boundary part (19a, 19b) which extends from an inner surface of at least one of the container parts (12, 14) and which has at least one section which extends to the other container part (14, 12) when the container parts (12, 14) are composed, the at least one delimiting part (19a, 19b) defining a cell-receiving area (50, 51) when the container parts are assembled, - At least one cover part (17, 18) which is assigned to at least one of the container parts and can be positioned relative to the limiting part (19a, 19b) in a position such that at least one cell connection (34, 35), which of the at least one electrolytic cell (30, 31) is assigned, can thereby be covered and thus defines a connection housing area (55) ...

Capacitor development

The present invention is directed to super or ultracapacitors. The ultracapacitor includes at least one bipolar electrode plate (12), an electrolyte (14) and a separator (16). The bipolar electrode plate (12) includes a current collector and an electrode material associated with the current collector. The electrolyte (14), which is positioned between adjacently oriented bipolar plates, includes an organic aprotic solvent and a salt. A stabilizing additive is associated with the electrolyte for stabilizing electrochemical activity between the solvent and at least one of the current collector and the electrode material. In addition, the electroly te may further include a wetting agent for increasing wettability of the electrode.

Die for extruding electrode paste

(57)【要約】 【課題】 溶剤非含有ペースト組成物を被塗布面にむら なく均一に塗布することが可能な電極ぺースト押出用ダ イを提供する。 【解決手段】 キャビティと、キャビティの第１端と関 連した取入れ口と、キャビティの第２端と関連した押出 口とから成る電極ペースト押出用ダイであって、取入れ 口より押出口が実質的に薄厚であり、取入れ口より押出 口が実質的に幅広であるキャビティ形状を有することを 特徴とするダイ。

Solid state electrochemical cell having porous cathode current collector

A solid state laminar electrochemical cell comprising: an alkali metal anode layer; a solid ionically conducting electrolyte layer; and a cathode/current collector layer; wherein said electrolyte layer is interposed between said alkali metal anode layer and said cathode/current collector layer and wherein said cathode/current collector layer comprises an electrically conductive substrate having a plurality of surface voids and a composite cathode composition comprising an intercalation compound, an electrically conductive filler and an ionically conductive electrolyte, said cathode composition being coated on the surface of said substrate facing said electrolyte layer and being maintained in the voids of said surface is disclosed.

Electrochemical cell having a controlled electrode surface and associated fabrication and chemical process

An electrochemical cell, and an associated process, wherein the cell includes a controlled electrode surface comprising an electrode with a carbonaceous surface, an electrolyte and a reduced additive. The reduced additive is formulated from an additive which is either soluble or insoluble in the solvated electrolyte prior to reduction. The invention further includes a passivating layer at the carbonaceous electrode/electrolyte interface. The passivating layer includes the additive and/or the reduced additive. This passivating layer substantially precludes contact between electrolyte solvent and the carbonaceous surface of the electrode to, in turn, substantially prevent gas formation within the cell, which would otherwise result from decomposition of the solvent upon contact with the carbonaceous surface. Also, the additive and/or the reduced additive will likewise be substantially precluded from generating a gas upon its decomposition.

Current collector having a uniformly applied lithium polysilicate primer and associated fabrication process

A primed current collector for use in an electrochemical cell comprising a current collector having a first surface and a second surface, and a primer applied to at least a portion of the first and/or second surfaces of the current collector, wherein the primer comprises a uniform layer of lithium polysilicate.

Electrolytic cell and electrolytic process within a carbon dioxide environment

An electrolytic cell, such as a rechargeable lithium battery, fabricated in a carbon dioxide atmosphere, having a lithium carbonate passivating layer associated with a lithium ion source electrode and an electrolyte. Fabrication of an electrolytic cell containing an acrylic polymer paste cathode, anode and electrolyte increases the efficiency of the polymer initiator and facilitates free radical chain growth polymerizations.

Electrochemical cell having a controlled electrode surface and associated fabrication and chemical process

An electrochemical cell, and an associated process, wherein the cell includes a controlled electrode surface comprising an electrode with a metallic current collector having a surface, an electrolyte and a reduced additive. The invention further includes a passivating layer at the interface between the metallic current collector and the electrolyte. The passivating layer includes the reduced additive. This passivating layer substantially precludes contact between electrolyte solvent and surface of the metallic current collector to, in turn, substantially prevent gas formation within the cell, which would otherwise result from decomposition of the solvent upon contact with the surface of the metallic current collector. Also, the reduced additive will likewise be substantially precluded from generating a gas upon its decomposition.

Molecular complexes for use as electrolyte components

An molecular complex is provided which includes a linear polymer associated with a cyclic molecule to form a rotaxane of the general formula, ##STR1## where R 1 and R 2 are blocking end groups of size and character sufficient to prevent dethreading of the rotaxane and said R 1 and R 2 the same or different; where the cyclic molecule comprises a cyclic skeleton and at least one A functional group, said functional group attached to the cyclic skeleton; where A is selected from the group consisting of polymerizable functional groups, cation complexing groups, anion complexing groups and ionic species; and wherein at least one of R 1 , R 2 and A are selected from the group consisting of cation complexing groups, anion complexing groups and ionic species. The molecular complex may used in an electrolyte.

Solid state electrochemical cell having microroughened current collector

A solid state laminar electrochemical cell comprising: an alkali metal anode layer; a solid ionically conductive electrolyte layer; a cathode composition layer; and a current collector; wherein said electrolyte layer is interposed between said alkali metal anode layer and said cathode layer and said cathode layer is interposed between said electrolyte layer and said current collector, the surface of said current collector which contacts said electrolyte layer being microroughened to enable the cathode layer to tightly adhere to said current collector is disclosed.

Electrolytic cell with alkali metal ions source

An electrolytic cell contains a first electrode (12) constructed with a source for alkali metal ions, a second electrode (14) and an electrolyte (16). The first electrode has a surface abutting the electrolyte. At least on a part of it is an additive (18) so that the boundary is conducting to special ions that are associated with the ion source, but itself is non- ionic and practically inert. It is practically insoluble in the electrolyte. The alkali metal ions are lithium ions. The additive is polymerised after it has been applied to the surface of the electrode and something to suppress dendritic growth on the first electrode.

Solid state electrochemical cell having porous cathode current collector

A solid state laminar electrochemical cell comprising: an alkali metal anode layer; a solid ionically conducting electrolyte layer; and a cathode/current collector layer; wherein said electrolyte layer is interposed between said alkali metal anode layer and said cathode/current collector layer and wherein said cathode/current collector layer comprises an electrically conductive substrate having a plurality of surface voids and a composite cathode composition comprising an intercalation compound, an electrically conductive filler and an ionically conductive electrolyte, said cathode composition being coated on the surface of said substrate facing said electrolyte layer and being maintained in the voids of said surface is disclosed.

Ion-conductive polymer and electrolyte additives

Compounds are provided for use in an electrolyte comprising repeating unit selected from the group consisting of cyclic and heterocyclic species having y carbon atoms and z heteroatoms, X, and where y is 4, 5 or 6 and z is 0, 1 or 2. The heteroatom is selected from the group consisting of O, S and N. The repeating unit is further substituted by four to six pendant groups having the formula, (CHR 1 ) m O(CHR 1 CHR 1 O) n Y, where the majority of pendant groups comprises at least two O and further, in which m is 0 or 1, in which n is in the range of 0 to 25, in which each R 1 is the same or different and R 1 is selected from the group consisting of H, alkyl, allylic and alkenyl radicals having 1 to 18 carbon atoms and Y, and in which each Y is the same or different and Y is a functional group selected from the group consisting of polymerizable functionalities, plasticizing agents and ionic species. Electrolytes, plasticizers and macro-ions prepared from these compounds are described.

Rechargeable high power electrochemical device

The present invention is drawn to a high power electrochemical energy storage device, comprising at least one stackable, monolithic battery unit. The monolithic battery unit includes at least two electrochemical energy storage cells. The cells have a lithium ion insertion anode and a lithium ion insertion cathode, a bipolar current collector between cells and end plate current collectors at the opposing ends of each battery unit. A frame may be associated with the perimeter of the current collector. The current collector comprises a high-conductivity metal. The device also has the at least two storage cells substantially aligned adjacent one another, a separator material associated between the anode and the cathode within each cell: and an electrolyte within each cell. Additionally, the present invention is drawn to a device combining two or more of the monolithic units, either in series or in parallel or any combination thereof, so as to create a high power, high voltage energy storage device.

Electrode materials having carbon particles with nano-sized inclusions therewithin and an associated electrolytic and fabrication process

An electrode for use in an electrolytic cell and an associated process, wherein the electrode includes a current collecting substrate, an electrode active material having at least one component including inclusions no greater than one micron within a carbon particle. The carbon particle has a dibutyl phthalate (DBP) absorption rate preferably within a range of approximately 52 ml/100 g to approximately 400 ml/100 g.

Electrolytic cell using small particle graphite and electrolytic process

An electrolytic cell using small particle graphite and an electrolytic process wherein the electrolytic cell includes an electrode constructed with a lithium source and another electrode constructed with relatively small graphite particles. The graphite particles possess physical attributes which serve to increase the reversible capacity of the graphite beyond the known theoretical capacity of 372 mAh/g of LjC6.

Small particle electrodes by aerosol process

A method for preparing an electrode is provided including generating aerosol droplets of a precursor capable of being converted into a component of an electrode in a carrier liquid; converting the droplets into precursor particles; converting the precursor particles into particles of the electrode component; and depositing the electrode component onto an electrically conductive substrate. The electrode is characterized by a highly porous structure having a surface area in the range of >4 m2/g and a discharge density at least 1.5 times greater than comparable electrodes prepared by conventional methods.

Electrolytic cell and method of manufacturing an electrolytic cell

Elektrolytische Zelle (10), umfassend: – eine erste Elektrode (12) und eine zweite Elektrode (14), wobei mindestens eine von der ersten und zweiten Elektrode (12, 14) eine Oberfläche (24) mit Kohlenstoff umfaßt, – einen Elektrolyten (16), der mindestens mit der Oberfläche (24) von einer entsprechenden Elektrode (12) mit Kohlenstoff in Verbindung steht, wobei der Elektrolyt (16) mindestens ein Lösungsmittel (18) umfaßt, und – ein ringöffnendes Spiroketon, ausgewählt aus 1,6-Dioxaspiro[4.4]nonan-2,7-dion oder 1,4-Dioxaspiro[4.5]decan-2-on, als ein Additiv (22), das mindestens mit dem Elektrolyten (16) oder mit mindestens einer von der ersten und zweiten Elektrode (12,14) in Verbindung steht, wobei das Additiv (22) nach Anlegen einer elektrischen Ladung eine passivierende Schicht (40) auf der Kohlenstoffoberfläche von einer entsprechenden Elektrode als Ergebnis der chemischen Wechselwirkung zwischen dem Kohlenstoff und dem Additiv bildet.

Rechargeable high power electrochemical device

Electrode assembly and method of manufacturing same

An electrode assembly divided into a plurality of segments which are each separated by a fold, to, in turn, facilitate a fan-fold orientation. The assembly comprises a separator, an anode active material, a cathode active material, an anode current collector and a cathode current collector. Portions of the separator corresponding to at least one of the folds are substantially free of at least one of anode active material and cathode active material resulting in a gap between the respective side of the separator and the respective current collector. Additionally, the upper edge of one of the anode side and the cathode side of the separator and the lower edge of one of the anode side and the cathode side of the separator are substantially free of the respective anode or cathode active material and the respective anode or cathode current collector. Moreover, at least one of the anode current collector and the cathode current collector includes at least one slit corresponding to at least one fold of the electrode assembly.

Particulate interface for electrolytic cells and electrolytic process

An electrolytic cell (20) and electrolytic process wherein the cell includes a metal anode (22), such as a lithium anode, a cathode (24) and an electrolyte (26). The surface (23) of the anode (22) is treated with a substantially non-continuous electronically conductive particulate coating (30), wherein the particulate may consist of carbon. This non-continuously applied particulate coating (30) not only provokes the formation of a stable passivating layer (toward suppression of dendritic growth), but it also serves to lower and substantially sustain interfacial resistance at the surface (23) of the anode (22) during the life of the cell (20).

電極ペースト適用装置および関連方法

(57)【要約】 【課題】 電解セル中での使用のための、基板上に電極 ペーストを適用するための装置および方法。この装置は 所定量の電極ペーストおよび重合開始剤を混合し次に基 板上に分配させる混合装置を含む。この混合装置は、そ のような混合中の電極ペーストの重合を実質的に防止し 且つ混合物の基板上への適用前の重合を防止するように 構成されている。

中間副構成要素連結層を有する電解質電池及びその製造方法

(57)【要約】 【課題】 電池の電極間の確実な位置合わせを容易にす ること。 【解決手段】 本発明は、電池が中間副構成要素結合層 を利用する電池及び関連する製造方法に関する。この層 は、少なくとも部分的に硬化された状態で、第１の副構 成要素の上の電解質と第２の副構成要素の上の電解質の 間に少なくとも部分的に挟まれた電解質を含む。中間副 構成要素結合層が完全に硬化する前に、電池は所望の製 品形状に適合される。一旦そのような形状が得られる と、中間副構成要素結合層は完全に硬化されて、様々な 副構成要素及び／又は電池の間の位置ずれや機械的な性 能低下の心配なしに、電池を所望の製品形状に維持す る。

Verfahren zur Herstellung einer elektrolytischen Zelle

Electrode paste applicator apparatus

An apparatus and process for applying an electrode paste onto a substrate for use in an electrolytic cell. The apparatus includes a mixing device which mixes, and then dispenses, predetermined amounts of an electrode paste and a polymerization initiator onto a substrate. The mixing device is constructed so as to substantially preclude polymerization of the electrode paste during such mixing, as well as to preclude polymerization prior to application of the mixture onto the substrate.

表面被覆を有する電池用電極の製造方法

(57)【要約】 【課題】 電極と電解質間の適合性を高め、電極と電解 質間の付着・接触が改善された電池用電極の製造方法を 提供する。 【解決手段】 表面を有する活物質に集電体を関連させ る工程と、基板に表面被覆材料を塗布する工程と、上記 活物質の表面の少なくとも一部に上記表面被覆材料を関 連させる工程と、上記基板を除去することによって上記 表面被覆材料の少なくとも一部を上記活物質の少なくと も一部に移行する工程とから成る電池用電極の製造方 法。

低速サイクル工程による電池の調整方法

(57)【要約】 【課題】 添加剤および／または共溶媒を有しなくて も、不働体化層を効率よく形成できる電池の調整方法を 提供する。 【解決手段】 炭素質活物質およびリチウムポリシリケ ート結着剤を含む第１電極と、第２電極と、電解質とを 有する電池を製造する工程と；前記電池を、制御下にサ イクル作動させて、第１電極と電解質間の界面付近に不 働態化層を形成する工程とから成ることを特徴とする電 池の調整方法。

アルカリ金属電極を処理するための電解セルおよび方法

(57)【要約】 【課題】 添加剤を電極に適用して電極と電解質との間 の優位を占める添加剤界面を生ずる、アルカリ金属電極 を処理するための電解セルおよび方法。 【解決手段】 添加剤界面がイオン的に導電性であるが 非イオン性である。さらに、添加剤界面は電極との接触 時に実質的に不活性でありながら電解質中に実質的に不 溶性である。

希釈剤非含有熱硬化性アノードペースト及びその製造方法

(57)【要約】 【課題】 熱開始剤が均一に混合された希釈剤非含有熱 硬化性アノードペーストを提供する。 【解決手段】 活物質成分、電解質成分、モノマー成分 および熱開始剤成分から成る希釈剤非含有熱硬化性アノ ードペースト及びその製造方法であって、当該製造方法 は、混合容器に炭素質成分、電解質成分、モノマー成分 から成る希釈剤非含有熱硬化性アノードペースト原料を 仕込む工程と；前記混合容器に熱開始剤を添加する工程 と；前記熱開始剤および希釈剤非含有熱硬化性アノード ペースト原料を均質に混合する工程と；集電基板上への 当該アノードペーストの塗布性を実質的に保持するよう に、混合した前記熱開始剤と希釈剤非含有熱硬化性アノ ードペースト原料の温度を制御する工程とから成る。

Current collector device and method of manufacturing same

A current collector device (20) for an electrolytic cell and method for manufacturing same. The device includes an aluminum current collector (22) having a substantially reduced oxidation layer relative to its native oxide (12) layer, to, in turn, exhibit a relatively low interfacial impedance. A layer of electrode material (26) can be applied and adhered to the surface (23) of the aluminum current collector (22) to enable electrochemical activity with particular ions in an electrolyte within the electrolytic cell. A coating of material (25) which includes an etching agent (21) and a primer (30) may additionally be applied to the surface (23) of the aluminum current collector (22) in a single mixture so that actual etching and bonding of the primer (30) to the surface (23) can be accomplished by a single step.

電極マスク及び付加方法

(57)【要約】 【課題】 セルの電気的ショートを防止すること。 【解決手段】 本発明は、電解質セルで使用される電極 マスクと、そのような電極マスクを備えたセルを製造す るための関連する方法に関する。電極マスクは、電極マ スクの周辺縁及び関連する電極が互いに同一平面の関係 となるように、第１及び第２の電極に少なくとも一つの 活性材料の限定されている部分に付加される。これに加 えて、電極マスクは、電極マスク付加パターンと、電極 マスクの付加されたパターンに一致する組み立てられた セルを切断するためのダイ−カッターを単に変えること により、任意の所望の幾何学的外形とすべき完成した電 解質セルを可能とする方法で付加することができる。

希釈剤非含有熱硬化性カソードペースト及びその製造方法

(57)【要約】 【課題】 塗布性が良好で、希釈剤または揮発性粉砕溶 媒非含有で、熱開始剤を含有する高固形分含有熱硬化性 カソードペースト及びその製造方法を提供する。 【解決手段】 混合容器に、希釈剤非含有熱硬化性カソ ードペーストを仕込む原料仕込み工程と；前記混合容器 に熱開始剤を添加する熱開始剤添加工程と；前記熱開始 剤および希釈剤非含有熱硬化性カソードペーストを均質 に混合する混合工程と；集電基板上へのカソードペース トの塗布性を実質的に保持するように、前記熱開始剤と 混合した希釈剤非含有熱硬化性カソードペーストの温度 を制御する制御工程とを有する、希釈剤非含有熱硬化性 カソードペーストの製造方法。

リチウム塩がアソシエイトした表面による電極の改良およびその電極の製造方法

(57)【要約】 【課題】電池用電極に於て、遷移金属酸化物から成る活 物質表面と関連する電解質との相溶性を高める手段を提 供する。 【解決手段】（１）集電体、（２）表面を有する遷移金 属酸化物を有し、上記集電体に会合する活物質、（３） 関連する電解質に関係した、上記活物質表面の相溶性を 高めるための手段から成る電池用電極。