Energy storage apparatus

Patent metadata

Field	Value
Publication number	US-2017244079-A1
Application number	US-201715436392-A
Country	US
Kind code	A1
Filing date	Feb 17, 2017
Priority date	Feb 19, 2016
Publication date	Aug 24, 2017
Grant date	—

Abstract

An energy storage apparatus includes an energy storage device containing a case where a corner portion is formed by a first wall portion and a second wall portion, an opposedly facing member which opposedly faces the first wall portion, and an insulator covering at least a region of the opposedly facing member which opposedly faces the energy storage device. The opposedly facing member contains a body disposed along the first wall portion and an extension portion extending from the body along the second wall portion. The insulator contains a cover portion which extends to a distal end of the extension portion from a boundary position between the extension portion and the body along an opposedly facing surface of the extension portion which opposedly faces the second wall portion, is folded back at the distal end, and extends along an outer surface of the extension portion opposite to the second wall portion. A first inner surface of the cover portion which opposedly faces the opposedly facing surface of the extension portion includes a projecting portion which projects toward the opposedly facing surface.

First claim

What is claimed is:

1 . An energy storage apparatus comprising:
an energy storage device containing a case where a corner portion is formed by a first wall portion and a second wall portion; an opposedly facing member which opposedly faces the first wall portion; and an insulator covering at least a region of the opposedly facing member which opposedly faces the energy storage device, wherein the opposedly facing member contains a body disposed along the first wall portion and an extension portion extending from the body along the second wall portion, the insulator contains a cover portion which extends to a distal end of the extension portion from a boundary position between the extension portion and the body along an opposedly facing surface of the extension portion which opposedly faces the second wall portion, is folded back at the distal end, and extends along an outer surface of the extension portion opposite to the second wall portion, and a first inner surface of the cover portion which opposedly faces the opposedly facing surface of the extension portion includes a projecting portion which projects toward the opposedly facing surface.

2 . The energy storage apparatus according to claim 1 , wherein the projecting portion extends in a direction toward the distal end from the boundary position.

3 . The energy storage apparatus according to claim 2 , wherein the energy storage apparatus includes a plurality of energy storage devices,
the energy storage devices are disposed in a state where the first wall portions and the second wall portions are directed in the same directions respectively, and the first inner surface includes the plurality of projecting portions arranged at intervals in a direction that the plurality of energy storage devices are arranged in a row.

4 . The energy storage apparatus according to claim 1 , wherein the projecting portion extends to a position corresponding to the boundary position of the extension portion from a position corresponding to a distal end of the extension portion.

5 . The energy storage apparatus according to claim 1 , wherein a distance is provided between a second inner surface of the cover portion which covers the distal end of the extension portion and the distal end.

6 . The energy storage apparatus according to claim 5 , wherein the second inner surface includes a surface which approaches the distal end of the extension portion as the second inner surface advances in a direction toward the outer surface from the opposedly facing surface of the extension portion.

7 . The energy storage apparatus according to claim 1 , wherein a third inner surface of the cover portion which opposedly faces the outer surface of the extension portion has a size smaller than a size of the extension portion in the direction toward the distal end from the boundary position.

8 . The energy storage apparatus according to claim 3 , wherein a distance between the projecting portions disposed adjacently to each other in the direction that the plurality of energy storage devices are arranged in the row is smaller than a distance between the energy storage devices disposed adjacently to each other in the direction that the plurality of energy storage devices are arranged in the row.

Assignees

• Gs Yuasa Int Ltd
• Honda Motor Co Ltd

Inventors

• Nishimura Yosuke
• Kakimura Hiroaki

Classifications

• H01G11/82

  Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations · CPC title

• H01G11/10 Primary

  Multiple hybrid or EDL capacitors, e.g. arrays or modules (housings, cases, encapsulations or mountings thereof H01G11/78) · CPC title

• H01G11/76

  specially adapted for integration in multiple or stacked hybrid or EDL capacitors · CPC title

• Y02E60/13

  Energy storage using capacitors · CPC title

• H01M50/209

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