Mechanical structures for maintaining structural integrity in cylindrical pouch cell batteries

The disclosed embodiments relate to the design and manufacture of a battery cell. The battery cell includes a jelly roll containing layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. The battery cell also includes a mechanical structure disposed around a perimeter of the jelly roll to maintain a structural integrity of the jelly roll. Finally, the battery cell includes a pouch enclosing the mechanical structure and the jelly roll, wherein the pouch is flexible.

BATTERY CAN

Aspects of the present disclosure involve various battery can designs. In general, the battery can design includes two fitted surfaces oriented opposite each other and seam welded together to form an enclosure in which a battery stack is located. To form the enclosure, the two fitted surfaces are welded together along the large perimeter. Other swelling-resisting advantages may also be achieved utilizing the battery can design described herein including, but not limited to, the ability to modify one or more can wall thicknesses to control a pressure applied to the battery stack by the can, overall reduction in wall thickness of the can through the use of stronger materials for the can surfaces, additional supports structures included within the can design, and/or bossing or other localized thinning of surfaces of the can. 1. A battery can assembly comprising:a first portion comprising a first surface and one or more first walls extending from the first surface, wherein the length and width of the first surface is larger than the length and width of each of the one or more first walls;a second portion comprising a second surface and one or more second walls extending from the second surface, wherein the length and width of the second surface is larger than the length and width of each of the one or more second walls and the length and width of the first surface; anda battery stack disposed between the first and second portion;wherein the one or more first walls and the one or more second walls are welded together to form a seam around the perimeter of the battery can assembly to enclose the battery stack.2. The battery can assembly of wherein at least one of the one or more first walls comprises at least one electrical connection and an electrolyte fill hole.3. The battery can assembly of further comprising:a weld protective backing disposed at least partially on an inner surface of the enclosure housing the battery stack, the weld protective backing configured to ...

Portable Electronic Device Having a Haptic Device with a Moving Battery Element

An electronic device includes an enclosure having a transparent cover defining a touch-sensitive surface, a display positioned within the enclosure and below the transparent cover, and a haptic device configured to produce a haptic output along the touch-sensitive surface. The haptic device may include a battery element electrically coupled to the display, a magnetic element, and a coil assembly fixed with respect to the enclosure and configured to induce an oscillatory movement of the battery element parallel to the display to produce the haptic output. In other examples, the coil assembly may be coupled to the battery element and the first and second magnetic elements may be fixed with respect to the enclosure.

Rechargeable battery features and components

Energy storage devices, battery cells, and batteries of the present technology may include a housing characterized by a first end and a second end opposite the first end. The housing may include a circumferential indentation proximate the first end. The housing may define a first interior region between the first end and the circumferential indentation, and the housing may define a second interior region between the circumferential indentation and the second end. The batteries may include a set of electrodes located within the housing. The set of electrodes may be positioned within the second interior region of the housing. The batteries may include a cap at least partially contained within the first interior region of the housing. The batteries may also include a first insulator positioned within the housing. The first insulator may extend across the circumferential indentation from the cap to the set of electrodes.

Electrically Isolated Battery Can Assembly

A battery can assembly may include the use of insulating adhesive between the can and cover. Because the cover and can are electrically isolated from each other, the respective battery terminals may be directly coupled thereto, eliminating a feed-through to connect electrodes to positive and negative terminals. Such an assembly can eliminate the need for an electrically insulated feed-through. Additionally, welding between the cover and can, which in some cases may be difficult due to shape, size, and or restricted access, may also be eliminated. This can allow for significant simplification of the battery assembly process.

METAL CAN BATTERY

This application relates to a battery system for reducing spacing between components in an electronic device. The battery system includes a housing surrounding an electrode assembly and a connection module. The housing is rigid or semi-rigid and connected to a common ground. The battery system can be positioned in the electronic device to contact components without damaging the components. In some embodiments, the battery system can be used as a structural element in the electronic component. 1. A battery system for use in an electronic device comprising:an electrically conductive housing including a first portion having a flange around its periphery and a second portion that overlaps with the first portion and is hermetically sealed to the first portion at the flange, the first and second portions combining to define an interior cavity;an electrode assembly disposed within the interior cavity and including an anode, a cathode, and a separator between the anode and cathode; anda connection terminal electrically coupled to the electrode assembly through an opening in the housing.2. The battery system of claim 1 , wherein the housing and the electrode assembly are electrically coupled to a common ground.3. The battery system of claim 1 , the housing comprising:a first area;sidewalls extending from the first area and forming a cavity for receiving the electrode assembly, the sidewalls having curved edges opposite the first area; anda second area generally parallel to the first area and connectable with the curved edges of the sidewalls to form a flanged edge.4. The battery system of claim 1 , wherein the connection terminal comprises a connection bar for coupling with the electrode assembly when the electrode assembly is disposed in the cavity.5. The battery system of further comprising a connection module disposed on an exterior of the housing for coupling between the battery system and electronic components.6. The battery system of claim 5 , wherein the connection ...

Integrated electrical feedthroughs for walls of battery housings

Electrical feedthroughs are presented that are integrated within a wall of a battery housing. In some embodiments, an electrical feedthrough includes a battery housing defining an opening. The electrical feedthrough also includes a collar disposed around the opening and forming a single body with the wall. The electrical feedthrough also includes an electrically-conductive terminal disposed through the collar. The electrical feedthrough additionally includes an electrically-insulating material disposed between the collar and the electrically-conductive terminal and forming a seal therebetween. In some embodiments, the wall has a thickness equal to or less than 1 mm. In some embodiments, the collar protrudes into the battery housing. In other embodiments, the collar protrudes out of the battery housing. In some embodiments, a cross-sectional area of the electrically-conductive terminal is at least 40% of an area bounded by an outer perimeter of the collar. Batteries incorporating the electrical feedthroughs are also presented.

Cylindrical battery cell with overmolded glass feedthrough

The disclosed technology relates to an electrical feedthrough for a cylindrical battery cell. The electrical feedthrough may include an annular channel having an outer sidewall, an inner sidewall, and a base; an insulator formed of glass having an overmold portion; and a pin extending through the insulator and configured to form an external battery terminal. The insulator is bonded to the inner sidewall of the annular channel and a portion of the base of the annular channel. The overmold portion prevents electrical contact between a set of electrodes and the electrode feedthrough.

BATTERY CELLS HAVING NOTCHED ELECTRODES

Battery cells are presented that have notched electrodes. In one embodiment, the battery cells have a first notch in an electrode and a second notch in a seal. The second notch allows a first portion of the seal adjacent the first edge to fold without overlapping a second portion of the seal adjacent the second edge. The first notch serves as a relief zone that enables the seal to maintain a seal distance during folding. In another embodiment, the battery cells have a first notch in an electrode and a second notch in a portion of a separator. The first notch and the second notch, in combination, allow the separator to fold along a fold line without tearing. Other battery cells are presented. 1. A battery cell , comprising:an electrode comprising a first edge and a second edge that meet at a virtual intersection;a first notch in the electrode at an offset distance from the virtual intersection;a seal adjacent to the first edge, the first notch, and the second edge of the electrode and having a fold line, the fold line displaced at a first seal distance from the first edge and a second seal distance from the second edge;a second notch in the seal opposite the first notch to create a relief for a first portion of the seal adjacent the first edge to fold without overlapping a second portion of the seal adjacent the second edge; andwherein the offset distance is equal to or greater than each of the first and the second seal distance.2. The battery cell of claim 1 , wherein the electrode has a non-rectangular shape.3. The battery cell of claim 1 , wherein the virtual intersection occurs at an inner corner and the first notch is a slit.4. The battery cell of claim 1 , wherein the seal is a flat seal formed into a pouch and wherein the electrode is disposed into the pouch.5. The battery cell of claim 1 , wherein the first seal distance and the second seal distance are not greater than 1 mm.6. The battery cell of claim 1 , wherein the first seal distance and the second seal ...

Feedthroughs for thin battery cells

The disclosed technology relates to electrical feedthroughs for thin battery cells. A battery cell enclosure includes a terraced portion having a reduced thickness relative to another portion of the enclosure. The enclosure includes an opening disposed on a horizontal surface of the terraced portion for receiving the electrical feedthrough. Because the feedthrough is disposed on the horizontal surface of the terraced portion, the feedthrough may be over-sized thereby reducing the resistance and impedance of the feedthrough without increasing the height or thickness of the enclosure.

Rechargeable battery with incorporated reference electrode

Energy storage devices, battery cells, and rechargeable batteries according to some embodiments of the present technology may include an enclosure, and an electrode stack housed within the enclosure. The batteries may include a negative electrode terminal electrically coupled with the electrode stack and disposed on an external surface of the enclosure. The batteries may include a positive electrode terminal electrically coupled with the electrode stack and disposed on an external surface of the enclosure. The batteries may include an electrolyte incorporated within the enclosure. The batteries may also include a reference electrode at least partially in contact with the electrolyte. The reference electrode may be disposed on an external surface of the enclosure, and may be electrically isolated from the negative electrode terminal and the positive electrode terminal.

Battery Can

Aspects of the present disclosure involve various battery can designs. In general, the battery can design includes two fitted surfaces oriented opposite each other and seam welded together to form an enclosure in which a battery stack is located. To form the enclosure, the two fitted surfaces are welded together along the large perimeter. Other swelling-resisting advantages may also be achieved utilizing the battery can design described herein including, but not limited to, the ability to modify one or more can wall thicknesses to control a pressure applied to the battery stack by the can, overall reduction in wall thickness of the can through the use of stronger materials for the can surfaces, additional supports structures included within the can design, and/or bossing or other localized thinning of surfaces of the can.

MECHANICAL STRUCTURES FOR MAINTAINING STRUCTURAL INTEGRITY IN CYLINDRICAL POUCH CELL BATTERIES

The disclosed embodiments relate to the design and manufacture of a battery cell. The battery cell includes a jelly roll containing layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. The battery cell also includes a mechanical structure disposed around a perimeter of the jelly roll to maintain a structural integrity of the jelly roll. Finally, the battery cell includes a pouch enclosing the mechanical structure and the jelly roll, wherein the pouch is flexible. 1. A battery cell , comprising:a jelly roll comprising layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating;a mechanical structure disposed around a perimeter of the jelly roll, wherein the mechanical structure maintains a structural integrity of the jelly roll; anda pouch enclosing the mechanical structure and the jelly roll, wherein the pouch is flexible.2. The battery cell of claim 1 , further comprising:a first conductive tab coupled to the cathode; anda second conductive tab coupled to the anode,wherein the first and second conductive tabs extend through seals in the pouch to provide terminals for the battery cell.3. The battery cell of claim 1 , wherein the mechanical structure comprises a tube.4. The battery cell of claim 3 , wherein the mechanical structure further comprises at least one of:an end cap disposed around an edge of the tube to prevent damage to the pouch by the tube; anda plastic washer disposed between an end of the jelly roll and an edge of the tube adjacent to the end of the jelly roll.5. The battery cell of claim 3 , wherein the tube comprises at least one of metal claim 3 , plastic claim 3 , ceramic claim 3 , and a perforation.6. The battery cell of claim 1 , wherein the mechanical structure encloses an outer perimeter of the jelly roll or is disposed within an inner perimeter of the jelly roll.7. The battery cell of claim 1 , wherein ...

RECHARGEABLE BATTERY FEATURES AND COMPONENTS

Energy storage devices, battery cells, and batteries of the present technology may include a housing characterized by a first end and a second end opposite the first end. The housing may include a circumferential indentation proximate the first end. The housing may define a first interior region between the first end and the circumferential indentation, and the housing may define a second interior region between the circumferential indentation and the second end. The batteries may include a set of electrodes located within the housing. The set of electrodes may be positioned within the second interior region of the housing. The batteries may include a cap at least partially contained within the first interior region of the housing. The batteries may also include a first insulator positioned within the housing. The first insulator may extend across the circumferential indentation from the cap to the set of electrodes. 1. A battery comprising:a housing characterized by a first end and a second end opposite the first end, wherein the housing comprises a circumferential indentation proximate the first end, wherein the housing defines a first interior region between the first end and the circumferential indentation, and wherein the housing defines a second interior region between the circumferential indentation and the second end;a set of electrodes located within the housing, wherein the set of electrodes is positioned within the second interior region of the housing;a cap at least partially contained within the first interior region of the housing, wherein the cap is characterized by a first surface facing the set of electrodes; anda first insulator positioned within the housing, wherein the first insulator extends across the circumferential indentation from the cap to the set of electrodes, wherein the first insulator is characterized by a first outer radius at a first end proximate the cap, and wherein the first insulator is characterized by a second outer radius ...

Rechargeable battery features and components

Energy storage devices, battery cells, and batteries of the present technology may include a housing characterized by a first end and a second end opposite the first end. The housing may include a circumferential indentation proximate the first end. The housing may define a first interior region between the first end and the circumferential indentation, and the housing may define a second interior region between the circumferential indentation and the second end. The batteries may include a set of electrodes located within the housing. The set of electrodes may be positioned within the second interior region of the housing. The batteries may include a cap at least partially contained within the first interior region of the housing. The batteries may also include a first insulator positioned within the housing. The first insulator may extend across the circumferential indentation from the cap to the set of electrodes.

FEEDTHROUGH WITH INTEGRATED INSULATOR

The disclosed technology relates to an electrical feedthrough for a battery cell. The electrical feedthrough may include a rivet, an outer gasket, an inner gasket, a terminal and an insulator. The rivet compresses the outer gasket, inner gasket, and terminal to create a hermetic seal at an opening through an enclosure of the battery cell. The inner gasket includes a recessed portion for seating of the terminal to prevent rotation of the terminal with respect to the inner gasket, a protrusion for engaging a corresponding notch on the terminal to further prevent rotation of the terminal with respect to the inner gasket, and a mating surface for attaching to the insulator to align and position the insulator within the enclosure. The insulator is positioned between the battery cell and the inner gasket to prevent physical and electrical contact between the set of layers and the feedthrough. 1. A battery cell , comprising:a set of layers comprising a cathode layer, an anode layer, and a separator layer disposed between the cathode layer and the anode layer; wherein the rivet compresses the outer gasket, inner gasket, and terminal to create a seal at the opening;', 'wherein the inner gasket comprises a recessed portion for seating of the terminal, a mating surface for attaching to the insulator, and a protrusion for engaging a corresponding notch on the terminal to prevent rotation of the terminal with respect to the inner gasket;', 'wherein a tab extending from the set of layers is electrically coupled to the terminal and rivet to form an external battery terminal at the rivet; and', 'wherein the insulator is disposed between the set of layers and the inner gasket to prevent physical contact between the set of layers and the feedthrough., 'a rivet, an outer gasket, an inner gasket, a terminal and an insulator;'}, 'an enclosure enclosing the set of layers, the enclosure comprising an opening for receiving a feedthrough, the feedthrough comprising2. The battery cell of ...

BATTERY CELL WITH SERPENTINE TAB

The disclosed technology relates to an electrical feedthrough for a battery cell. The electrical feedthrough may include a pin configured to form an external battery terminal, an insulator surrounding the pin and configured to electrically isolate the pin, a channel, and a serpentine tab electrically coupled to the pin at a first end. The serpentine tab is nested within the channel to minimize use of space within an enclosure of the battery cell thereby increasing energy capacity of the battery cell by eliminating the need to allot space within the enclosure to accommodate the tab. 1. A battery cell , comprising:a set of layers comprising a cathode layer, an anode layer, and a separator layer disposed between the cathode layer and the anode layer;an enclosure enclosing the set of layers; a pin configured to form an external battery terminal;', 'an insulator surrounding the pin and configured to electrically isolate the pin;', 'a channel;', 'wherein the serpentine tab is nested within the channel to minimize use of space within the enclosure.', 'a serpentine tab electrically coupled to the pin at a first end, the serpentine tab electrically coupled to a tab extending from the set of layers at a second end; and'}], 'a feedthrough comprising2. The battery cell of claim 1 , further comprising an insulating layer disposed between the set of layers and the serpentine tab.3. The battery cell of claim 1 , wherein the feedthrough further comprises a plug configured to seal a hole used to fill the enclosure with electrolyte.4. The battery cell of claim 1 , wherein the feedthrough further comprises an insert disposed within the channel claim 1 , the insert configured to electrically isolate the serpentine tab from the channel.5. The battery cell of claim 1 , wherein the channel extends along a periphery of a cap disposed over an opening of the enclosure.6. The battery cell of claim 1 , wherein an intermediate portion of the serpentine tab and the second end of the serpentine ...

Feedthroughs for thin battery cells

The disclosed technology relates to electrical feedthroughs for thin battery cells. A battery cell enclosure includes a terraced portion having a reduced thickness relative to another portion of the enclosure. The enclosure includes an opening disposed on a horizontal surface of the terraced portion for receiving the electrical feedthrough. Because the feedthrough is disposed on the horizontal surface of the terraced portion, the feedthrough may be over-sized thereby reducing the resistance and impedance of the feedthrough without increasing the height or thickness of the enclosure.

Battery

Non-rectangular metal batteries

Battery systems according to embodiments of the present technology may include a battery including a first electrode terminal and a second electrode terminal accessible along a first surface of the battery. The battery may define a recessed portion of the battery along the first surface of the battery between the first electrode terminal and the second electrode terminal. The battery systems may include a module electrically coupled with the battery. The module may include a circuit board. The module may include a first conductive tab extending from a second surface of the circuit board opposite the first surface of the circuit board. The first conductive tab may be electrically coupling the module with the first electrode terminal. The module may include a second conductive tab extending from the second surface of the circuit board. The second conductive tab may be electrically coupling the module with the second electrode terminal.

Integrated electrical feedthroughs for walls of battery housings

Electrical feedthroughs are presented that are integrated within a wall of a battery housing. In some embodiments, an electrical feedthrough includes a battery housing defining an opening. The electrical feedthrough also includes a collar disposed around the opening and forming a single body with the wall. The electrical feedthrough also includes an electrically-conductive terminal disposed through the collar. The electrical feedthrough additionally includes an electrically-insulating material disposed between the collar and the electrically-conductive terminal and forming a seal therebetween. In some embodiments, the wall has a thickness equal to or less than 1 mm. In some embodiments, the collar protrudes into the battery housing. In other embodiments, the collar protrudes out of the battery housing. In some embodiments, a cross-sectional area of the electrically-conductive terminal is at least 40% of an area bounded by an outer perimeter of the collar. Batteries incorporating the electrical feedthroughs are also presented.

Cylindrical battery cell with overmolded glass feedthrough

The disclosed technology relates to an electrical feedthrough for a cylindrical battery cell. The electrical feedthrough may include an annular channel having an outer sidewall, an inner sidewall, and a base; an insulator formed of glass having an overmold portion; and a pin extending through the insulator and configured to form an external battery terminal. The insulator is bonded to the inner sidewall of the annular channel and a portion of the base of the annular channel. The overmold portion prevents electrical contact between a set of electrodes and the electrode feedthrough.

Rechargeable battery features and components

Energy storage devices, battery cells, and batteries of the present technology may include a housing characterized by a first end and a second end opposite the first end. The batteries may include a set of electrodes located within the housing. The set of electrodes may be positioned within the interior region of the housing. The set of electrodes may include a first electrode and a second electrode. The first electrode may include a tab coupled with a surface of the housing at a distal end and coupled with the first electrode at a proximal end. The tab may be coupled with a first surface of the first electrode. A first insulating material may be applied along a second surface of the first electrode across a section corresponding to a location where the tab is coupled with the first electrode. The batteries may also include a cap at least partially contained within the interior region of the housing. The cap may be characterized by a first surface facing the set of electrodes.

Battery can

Aspects of the present disclosure involve various battery can designs. In general, the battery can design includes two fitted surfaces oriented opposite each other and seam welded together to form an enclosure in which a battery stack is located. To form the enclosure, the two fitted surfaces are welded together along the large perimeter. Other swelling-resisting advantages may also be achieved utilizing the battery can design described herein including, but not limited to, the ability to modify one or more can wall thicknesses to control a pressure applied to the battery stack by the can, overall reduction in wall thickness of the can through the use of stronger materials for the can surfaces, additional supports structures included within the can design, and/or bossing or other localized thinning of surfaces of the can.

Battery enclosures with structural enhancements

Batteries according to embodiments of the present technology may include an electrode stack including a separator positioned between an anode and a cathode. The batteries may include an electrolyte. The batteries may include an enclosure extending about the electrode stack and containing the electrolyte. The enclosure may include a rigid housing defining a volume in which the electrode stack and the electrolyte are contained. The rigid housing may define a flange extending about the rigid housing. The enclosure may include a lid extending across the rigid housing. The lid may be characterized by a length and a width, and the lid may define a protrusion extending beyond the length or width on a side of the lid at a location corresponding to a predetermined strain location.

Cylindrical battery cell with overmolded glass feedthrough

The disclosed technology relates to an electrical feedthrough for a cylindrical battery cell. The electrical feedthrough may include an annular channel having an outer sidewall, an inner sidewall, and a base; an insulator formed of glass having an overmold portion; and a pin extending through the insulator and configured to form an external battery terminal. The insulator is bonded to the inner sidewall of the annular channel and a portion of the base of the annular channel. The overmold portion prevents electrical contact between a set of electrodes and the electrode feedthrough.

Cylindrical battery cell with overmolded glass feedthrough

The disclosed technology relates to an electrical feedthrough for a cylindrical battery cell. The electrical feedthrough may include an annular channel having an outer sidewall, an inner sidewall, and a base; an insulator formed of glass having an overmold portion; and a pin extending through the insulator and configured to form an external battery terminal. The insulator is bonded to the inner sidewall of the annular channel and a portion of the base of the annular channel. The overmold portion prevents electrical contact between a set of electrodes and the electrode feedthrough.

Cylindrical battery cell with overmolded glass feedthrough

Cylindrical battery cell with overmolded glass feedthrough

The disclosed technology relates to an electrical feedthrough for a cylindrical battery cell. The electrical feedthrough may include an annular channel having an outer sidewall, an inner sidewall, and a base; an insulator formed of glass having an overmold portion; and a pin extending through the insulator and configured to form an external battery terminal. The insulator is bonded to the inner sidewall of the annular channel and a portion of the base of the annular channel. The overmold portion prevents electrical contact between a set of electrodes and the electrode feedthrough.

Rechargeable battery features and components

Energy storage devices, battery cells, and batteries of the present technology may include a housing characterized by a first end and a second end opposite the first end. The housing may include a circumferential indentation proximate the first end. The housing may define a first interior region between the first end and the circumferential indentation, and the housing may define a second interior region between the circumferential indentation and the second end. The batteries may include a set of electrodes located within the housing. The set of electrodes may be positioned within the second interior region of the housing. The batteries may include a cap at least partially contained within the first interior region of the housing. The batteries may also include a first insulator positioned within the housing. The first insulator may extend across the circumferential indentation from the cap to the set of electrodes.

Rechargeable battery features and components

Energy storage devices, battery cells, and batteries of the present technology may include a housing characterized by a first end and a second end opposite the first end. The housing may include a circumferential indentation proximate the first end. The housing may define a first interior region between the first end and the circumferential indentation, and the housing may define a second interior region between the circumferential indentation and the second end. The batteries may include a set of electrodes located within the housing. The set of electrodes may be positioned within the second interior region of the housing. The batteries may include a cap at least partially contained within the first interior region of the housing. The batteries may also include a first insulator positioned within the housing. The first insulator may extend across the circumferential indentation from the cap to the set of electrodes.

Feedthroughs for thin battery cells

The disclosed technology relates to electrical feedthroughs for thin battery cells. A battery cell enclosure includes a terraced portion having a reduced thickness relative to another portion of the enclosure. The enclosure includes an opening disposed on a horizontal surface of the terraced portion for receiving the electrical feedthrough. Because the feedthrough is disposed on the horizontal surface of the terraced portion, the feedthrough may be over-sized thereby reducing the resistance and impedance of the feedthrough without increasing the height or thickness of the enclosure.

Heat dissipating battery pack

Aspects of the disclosure involve various battery packs. In general, the battery pack includes a battery cell and an enclosure. The enclosure includes a first portion and a plurality of walls that extend perpendicularly from the first portion. The enclosure includes a second portion connected to the plurality of walls to form a body enclosing the battery cell. The first portion, the second portion, and the plurality of walls are a first material comprising stainless steel. The enclosure includes a layer of a second material covering at least a portion of at least one of the first portion, the second portion, and one of the plurality of walls. The second material comprises aluminum, an aluminum alloy, copper, a copper alloy, graphite, graphene, or a combination thereof and has a greater thermal conductivity than the first material.

Rechargeable battery features and components

Energy storage devices, battery cells, and batteries of the present technology may include a housing characterized by a first end and a second end opposite the first end. The housing may include a circumferential indentation proximate the first end. The housing may define a first interior region between the first end and the circumferential indentation, and the housing may define a second interior region between the circumferential indentation and the second end. The batteries may include a set of electrodes located within the housing. The set of electrodes may be positioned within the second interior region of the housing. The batteries may include a cap at least partially contained within the first interior region of the housing. The batteries may also include a first insulator positioned within the housing. The first insulator may extend across the circumferential indentation from the cap to the set of electrodes.

Nicht rechteckige metallbatterien

Batteriesysteme nach Ausführungsformen der vorliegenden Technologie können eine Batterie einschließen, die einen ersten Elektrodenanschluss und einen zweiten Elektrodenanschluss einschließt, die entlang einer ersten Oberfläche der Batterie zugänglich sind. Die Batterie kann einen ausgesparten Abschnitt der Batterie entlang der ersten Oberfläche der Batterie zwischen dem ersten Elektrodenanschluss und dem zweiten Elektrodenanschluss definieren. Die Batteriesysteme können ein Modul einschließen, das elektrisch mit der Batterie gekoppelt ist. Das Modul kann eine Leiterplatte einschließen. Das Modul kann eine erste leitfähige Lasche einschließen, die sich von einer zweiten Oberfläche der Leiterplatte gegenüber der ersten Oberfläche der Leiterplatte erstreckt. Die erste leitfähige Lasche kann das Modul elektrisch mit dem ersten Elektrodenanschluss koppeln. Das Modul kann eine zweite leitfähige Lasche einschließen, die sich von der zweiten Oberfläche der Leiterplatte erstreckt. Die zweite leitfähige Lasche kann das Modul elektrisch mit dem zweiten Elektrodenanschluss koppeln.

Battery enclosures with structural enhancements

Batteries according to embodiments of the present technology may include an electrode stack including a separator positioned between an anode and a cathode. The batteries may include an electrolyte. The batteries may include an enclosure extending about the electrode stack and containing the electrolyte. The enclosure may include a rigid housing defining a volume in which the electrode stack and the electrolyte are contained. The rigid housing may define a flange extending about the rigid housing. The enclosure may include a lid extending across the rigid housing. The lid may be characterized by a length and a width, and the lid may define a protrusion extending beyond the length or width on a side of the lid at a location corresponding to a predetermined strain location.

Electronic enclosure with stress concentrating feature

An electronic enclosure includes walls that extend crosswise from one another to define a portion of an internal volume of the electronic enclosure. The walls extend from one another via an interface formed between the walls. The interface includes a notch, such as an arcuate portion, configured to concentrate stress caused by pressure buildup within the internal volume such that an amount of stress at the notch is greater than an amount of stress at other portions of the electronic enclosure.

Rechargeable battery features and components

Energy storage devices, battery cells, and batteries of the present technology may include a housing characterized by a first end and a second end opposite the first end. The batteries may include a set of electrodes located within the housing. The set of electrodes may be positioned within the interior region of the housing. The set of electrodes may include a first electrode and a second electrode. The first electrode may include a tab coupled with a surface of the housing at a distal end and coupled with the first electrode at a proximal end. The tab may be coupled with a first surface of the first electrode. A first insulating material may be applied along a second surface of the first electrode across a section corresponding to a location where the tab is coupled with the first electrode. The batteries may also include a cap at least partially contained within the interior region of the housing. The cap may be characterized by a first surface facing the set of electrodes.