Power storage module and power storage cell

Patent metadata

Field	Value
Publication number	US-12040462-B2
Application number	US-202117329155-A
Country	US
Kind code	B2
Filing date	May 25, 2021
Priority date	May 26, 2020
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

A power storage module includes: a plurality of power storage cells; a first indication portion that is provided on each of the power storage cells and that indicates first identification information; and a second indication portion that is provided on each of the power storage cells and that indicates second identification information different from the first identification information. In a state in which the power storage module including the plurality of power storage cells is formed, the first indication portion is exposed to outside of the power storage module, and the second indication portion is not exposed to the outside of the power storage module.

First claim

What is claimed is:

1. A power storage module, comprising:
a plurality of power storage cells;
a first indication portion that is provided on each of the power storage cells and that indicates first identification information;
a second indication portion that is provided on each of the power storage cells and that indicates second identification information different from the first identification information; and
a case that covers at least part of the plurality of power storage cells,
wherein
in a state in which the power storage module including the plurality of power storage cells is formed,
the first indication portion is exposed to outside of the power storage module, and
the second indication portion is covered with the case and is not exposed to an outside of the power storage module,

each of the plurality of power storage cells includes a main body container,
each of the first and second indication portions is
a label attached to the main body container of each of the plurality of power storage cells and indicating corresponding first or second indication information, or
the corresponding first or second indication information directly printed or inscribed on the main body container of each of the plurality of power storage cells,

the main body container has a prismatic shape with six surfaces, and an electrode terminal protruding to outside of the main body container,
the six surfaces include a first surface on which the electrode terminal is provided and a second surface orthogonal to the first surface,
the case includes an abutment portion fixing the plurality of power storage cells to the case by making abutment with the second surface of the main body container,
the first indication portion is provided on the first surface of the main body container, and
the second indication portion is provided on the second surface of the main body container at a position to avoid the abutment portion.

2. The power storage module according to claim 1 , wherein in the state in which the power storage module including the plurality of power storage cells is formed, the second identification information is visually unrecognizable from the outside of the power storage module.

3. The power storage module according to claim 1 , wherein the first identification information includes information required when assembling the power storage module.

4. The power storage module according to claim 1 , wherein the second identification information includes information required after disassembling the power storage module.

5. The power storage module according to claim 1 , wherein each of the plurality of power storage cells is a lithium ion battery.

6. A power storage cell, comprising:
a main body container having a prismatic shape with six surfaces, the six surface including a first surface and a second surface orthogonal to the first surface;
an electrode terminal that protrudes to outside of the main body container and is on the first surface of the main body container;
a first indication portion that indicates first identification information; and
a second indication portion that indicates second identification information different from the first identification information,
wherein
when a power storage module including a plurality of the power storage cells is formed,
the first indication portion is exposed to outside of the power storage module from a case that includes an abutment portion fixing the plurality of power storage cells to the case by making abutment with the second surface of the main body container, and
the second indication portion is covered by the case and is not exposed to an outside of the power storage module,

each of the first and second indication portions is
a label attached to the main body container and indicating corresponding first or second indication information, or
the corresponding first or second indication information directly printed or inscribed on the main body container,

the first indication portion is provided on the first surface of the main body container, and
the second indication portion is provided on the second surface of the main body container at a position to avoid the abutment portion.

7. The power storage cell according to claim 6 , wherein the first identification information includes information required when assembling the power storage module.

8. The power storage cell according to claim 6 , wherein the second identification information includes information required after disassembling the power storage module.

9. The power storage cell according to claim 6 , wherein the power storage cell is a lithium ion battery.

10. The power storage cell according to claim 6 , wherein the first surface of the main body container is a top surface of the main body container, and the second surface of the main body container is a side surface of the main body container.

11. The power storage cell according to claim 6 , wherein the second indication portion is formed at the position higher than the abutment portion.

12. The power storage cell according to claim 6 , wherein the abutment portion protrudes from an inner surface of the case to abut the second surface of the main body container without contacting the second indication portion on the second surface of the main body container.

13. The power storage module according to claim 1 , wherein the first surface of the main body container is a top surface of the main body container, and the second surface of the main body container is a side surface of the main body container.

14. The power storage module according to claim 1 , wherein the second indication portion is formed at the position higher than the abutment portion.

15. The power storage module according to claim 1 , wherein the abutment portion protrudes from an inner surface of the case to abut the second surface of the main body container without contacting the second indication portion on the second surface of the main body container.

Assignees

• Prime Planet Energy & Solutions Inc

Inventors

• Sakatani Toshihiro
• Komaki Tsuyoshi

Classifications

• H02J7/80

  including monitoring or indicating arrangements · CPC title

• H01M10/482

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M50/291

  characterised by their shape · CPC title

• H01M50/213

  adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title