Energy storage apparatus

Patent metadata

Field	Value
Publication number	US-2018102565-A1
Application number	US-201715730297-A
Country	US
Kind code	A1
Filing date	Oct 11, 2017
Priority date	Oct 12, 2016
Publication date	Apr 12, 2018
Grant date	—

Abstract

An energy storage apparatus including: an outer case having an opening portion; a plurality of energy storage devices arranged in a first direction in the outer case; and a positioning projection disposed on opposedly facing inner side surfaces of the outer case, extending in a second direction substantially orthogonal to the first direction toward a lower side of the outer case opposite from the opening, and being capable of positioning the adjacently disposed energy storage devices at the lower side of the outer case.

First claim

What is claimed is:

1 . An energy storage apparatus comprising:
an outer case having an opening portion; a plurality of energy storage devices arranged in a first direction in the outer case; and a positioning projection disposed on opposedly facing inner side surfaces of the outer case, extending in a second direction substantially orthogonal to the first direction toward a lower side of the outer case opposite from the opening, and being capable of positioning the adjacently disposed energy storage devices at the lower side of the outer case.

2 . The energy storage apparatus according to claim 1 , wherein the positioning projection is brought close to the energy storage device as the positioning projection extends toward the lower side of the outer case.

3 . The energy storage apparatus according to claim 2 , wherein the positioning projection is configured to increase a pressing force to the energy storage device as the positioning projection extends toward the lower side of the outer case.

4 . The energy storage apparatus according to claim 1 , wherein the positioning projection is formed at a plurality of portions along the second direction.

5 . The energy storage apparatus according to claim 1 , wherein the energy storage device has a curved surface on at least a portion of an outer surface thereof, and the positioning projection is brought into contact with the curved surface of the energy storage device.

6 . The energy storage apparatus according to claim 1 , wherein the energy storage device has an approximately rectangular parallelepiped shape, and side surfaces of the energy storage devices disposed adjacently in the first direction are brought into contact with each other.

7 . The energy storage apparatus according to claim 1 , wherein the energy storage device has an approximately rectangular parallelepiped shape, the energy storage device has a curved surface on at least a portion of an outer surface thereof, and the curved surface is an arcuate surface formed on both end portions of side surfaces of the energy storage devices disposed adjacently in the first direction.

8 . The energy storage apparatus according to claim 1 , wherein the outer case comprises: a body having a bottomed cylindrical shape in which the energy storage devices are accommodated; and a lid body which closes an opening portion of the body, and the positioning projection is formed on a lower side of the body and the lid body.

9 . The energy storage apparatus according to claim 1 , wherein on the inner side surface of the outer case, an aligning projection which projects in a third direction orthogonal to the first direction and the second direction and is contactable with an end surface of the energy storage device is formed.

10 . The energy storage apparatus according to claim 9 , wherein the aligning projection is formed on only one of the opposedly facing inner side surfaces of the outer case.

11 . The energy storage apparatus according to claim 9 , wherein the aligning projection is brought close to the energy storage device as the aligning projection extends toward the lower side of the outer case.

12 . The energy storage apparatus according to claim 9 , wherein the aligning projection is formed on a lower half of the inner side surface of the outer case.

13 . The energy storage apparatus according to claim 1 ,
wherein the energy storage device has a terminal on an upper portion of the energy storage device, and
the terminal mounted on one of the energy storage devices and the terminal mounted on another one of the energy storage devices are connected to each other by a connecting plate.

Assignees

• Gs Yuasa Int Ltd

Inventors

• Yamamoto Yuichiro

Classifications

• H01M10/0413 Primary

  Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes · CPC title

• H01M10/0472

  Vertically superposed cells with vertically disposed plates · CPC title

• H01M10/0486

  Frames for plates or membranes · CPC title

• H01M6/42

  Grouping of primary cells into batteries (H01M6/40 takes precedence) · CPC title

• H01M50/271

  Lids or covers for the racks or secondary casings · CPC title