Energy storage apparatus

Patent metadata

Field	Value
Publication number	US-11069930-B2
Application number	US-201715714125-A
Country	US
Kind code	B2
Filing date	Sep 25, 2017
Priority date	Oct 12, 2016
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

An energy storage apparatus including: an outer case having a bottom wall and a side wall; an energy storage device; an insulating member disposed at a position where the energy storage device is sandwiched between the bottom wall and the insulating member; a first adhesive layer which makes the insulating member and the energy storage device adhere to each other; and a second adhesive layer which makes the insulating member and the side wall adhere to each other.

First claim

What is claimed is:

1. An energy storage apparatus, comprising:
an outer case including a bottom wall and a side wall;
energy storage devices, each energy storage device including an upper surface that faces opposite to the bottom wall, the upper surface including a lid portion that covers an opening of the each energy storage device;
an insulating member disposed at a position where the energy storage devices are sandwiched between the bottom wall and the insulating member, the insulating member including a first projecting portion which projects toward the energy storage devices;
a first adhesive layer which makes the insulating member and the energy storage devices adhere to each other, the first adhesive layer being formed on and over the upper surfaces of the energy storage devices, the energy storage devices being disposed adjacently to each other; and
a second adhesive layer which makes the insulating member and the side wall adhere to each other,
wherein, above the lid portion, the first projecting portion extends at a position adjacent to the first adhesive layer.

2. The energy storage apparatus according to claim 1 , wherein the energy storage apparatus further comprises a third adhesive layer which makes the bottom wall and the energy storage devices adhere to each other.

3. The energy storage apparatus according to claim 1 , wherein the energy storage apparatus further comprises at least one of a printed circuit board and a bus bar, and
wherein the at least one of the printed circuit board and the bus bar is fixed to the insulating member.

4. The energy storage apparatus according to claim 1 , wherein an outer periphery of the insulating member and an inner periphery of the side wall are adhered to each other by the second adhesive layer.

5. The energy storage apparatus according to claim 1 , Wherein the side wall includes a recessed portion in which the insulating member is fitted, and
wherein the second adhesive layer makes the recessed portion and the insulating member adhere to each other.

6. The energy storage apparatus according to claim 5 , wherein the recessed portion is formed on an inner surface of the side wall.

7. The energy storage apparatus according to claim 5 , wherein the recessed portion includes a groove portion which accommodates the second adhesive layer.

8. The energy storage apparatus according to claim 1 , wherein, above the lid portion, the first projecting portion is brought into contact with the energy storage devices at the position adjacent to the first adhesive layer.

9. The energy storage apparatus according to claim 1 , wherein the energy storage apparatus further comprises a partition portion disposed between the energy storage devices,
wherein the insulating member includes a second projecting portion which projects toward the partition portion, and
wherein the partition portion is fixed to the second projecting portion.

10. The energy storage apparatus according to claim 1 , wherein the each energy storage device further includes at least one of an electrode terminal and a gas release valve, and
wherein the first adhesive layer is disposed at a position different from a position of the at least one of the electrode terminal and the gas release valve.

11. The energy storage apparatus according to claim 1 , wherein the first adhesive layer makes the insulating member and the energy storage devices adhere to each other in a first direction, and
wherein the second adhesive layer makes the insulating member and the side wall adhere to each other in a second direction which differs from the first direction.

12. The energy storage apparatus according to claim 1 , wherein an electrode terminal protrudes from the lid portion in a stacking direction, the first projecting portion extends away from an upper surface of the lid portion in the stacking direction, and
wherein, above the lid portion, the electrode terminal, the first projecting portion, and the first adhesive layer are arranged sequentially in the stacking direction.

13. The energy storage apparatus according to claim 1 , wherein the each energy storage device further includes a gas release valve disposed on the lid portion, and
wherein, above the lid portion, the first projecting portion extends between the first adhesive layer and the gas release valve.

14. The energy storage apparatus according to claim 1 , wherein the insulating member is disposed on a top surface of the first adhesive layer.

15. The energy storage apparatus according to claim 14 , wherein, above the lid portion, the first projecting portion of the insulating member is disposed on a side surface of the first adhesive layer.

16. The energy storage apparatus according to claim 1 , wherein, above the lid portion, the first projecting portion of the insulating member abuts a side surface of the first adhesive layer.

17. An energy storage apparatus, comprising:
an outer case including a bottom wall and a side wall;
energy storage devices, each energy storage device including an upper surface that faces opposite to the bottom wall, the upper surface including a lid portion that covers an opening of the each energy storage device;
an insulating member disposed at a position where the energy storage devices are sandwiched between the bottom wall and the insulating member, the insulating member including a projecting portion which projects toward the energy storage devices; and
an adhesive layer which adheres the insulating member and the energy storage devices to each other,
wherein, above the lid portion, the projecting portion extends at a position adjacent to the adhesive layer.

18. The energy storage apparatus according to claim 17 , wherein an electrode terminal protrudes from the lid portion in a stacking direction, the projecting portion extends away from an upper surface of the lid portion in the stacking direction, and
wherein, above the lid portion, the electrode terminal, the projecting portion, and the adhesive layer are arranged sequentially in the stacking direction.

19. The energy storage apparatus according to claim 17 , wherein the each energy storage device further includes a gas release valve disposed on the lid portion, and
wherein, above the lid portion, the projecting portion extends between the adhesive layer and the gas release valve.

20. The energy storage apparatus according to claim 17 , wherein the insulating member is disposed on a top surface of the adhesive layer, and
wherein, above the lid portion, the projecting portion of the insulating member is disposed on a side surface of the adhesive layer.

Assignees

• Gs Yuasa Int Ltd

Inventors

• Tsuruta Shogo
• Yamamoto Yuichiro

Classifications

• H01M10/482 Primary

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M50/289

  characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471) · CPC title

• H01M50/209

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

• H01M50/519

  comprising printed circuit boards [PCB] · CPC title

• H01M50/264

  for cells or batteries, e.g. straps, tie rods or peripheral frames · CPC title