Bipolar battery
US-2018053962-A1 · Feb 22, 2018 · US
Bipolar battery and power storage device
US11916183B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11916183-B2 |
| Application number | US-201917417908-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 24, 2019 |
| Priority date | Dec 25, 2018 |
| Publication date | Feb 27, 2024 |
| Grant date | Feb 27, 2024 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The power storage device includes power storage units arranged with a conductive plate interposed therebetween in the vertical direction, each of the power storage units includes an electrode stack including bipolar electrodes stacked with a separator interposed therebetween, and a sealing member provided around the electrode stack so as to seal a housing space formed between adjacent electrodes of the electrode stack. At least one of the power storage units is provided with an overhang member on an outer peripheral surface of the sealing member. The overhang member includes an inclined portion that extends from the outer peripheral surface of the sealing member toward the outside of the power storage unit and inclines downward as it leaves away from the outer peripheral surface of the sealing member, and a top portion formed at a lower end of the inclined portion.
First claim
Opening claim text (preview).
The invention claimed is: 1. A power storage device comprising: a plurality of power storage units arranged with a conductive plate interposed therebetween in the vertical direction, each of the plurality of power storage units having an electrode stack including a plurality of bipolar electrodes stacked with a separator interposed therebetween, and a sealing member provided around the electrode stack so as to seal a housing space formed between adjacent electrodes of the electrode stack, at least one of the plurality of power storage units being provided with an overhang member on an outer peripheral surface of the sealing member, the overhang member including an inclined portion that extends from the outer peripheral surface of the sealing member toward the outside of the power storage unit and inclines downward as it leaves away from the outer peripheral surface of the sealing member, and a top portion that is formed at a lower end of the inclined portion in a stacked direction, wherein a portion of the sealing member that includes the overhang member does not contact with other sealing members of the plurality of power storage units. 2. The power storage device according to claim 1 , wherein the overhang member includes a pendent portion that is connected to the lower end of the inclined portion and extends downward from the lower end, an angle formed between the pendent portion and a horizontal plane is greater than an angle formed between the inclined portion and the horizontal plane, and the top portion is formed as a connection between the inclined portion and the pendent portion. 3. The power storage device according to claim 1 , wherein the overhang member is formed to extend along a peripheral surface of the power storage unit, and the overhang member includes a reinforcing rib that protrudes upward from an upper surface of the inclined portion so as to connect the upper surface and the outer peripheral surface of the sealing member.
Assignees
Inventors
Classifications
Energy storage using batteries · CPC title
- H01M10/0418Primary
with bipolar electrodes · CPC title
Nickel accumulators (H01M10/34 takes precedence) · CPC title
Cooling or keeping cold · CPC title
arranged between the cells · CPC title
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Frequently asked questions
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- What does patent US11916183B2 cover?
- The power storage device includes power storage units arranged with a conductive plate interposed therebetween in the vertical direction, each of the power storage units includes an electrode stack including bipolar electrodes stacked with a separator interposed therebetween, and a sealing member provided around the electrode stack so as to seal a housing space formed between adjacent electrode…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd, Toyota Jidoshokki Kk
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0418. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 27 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).