Electric storage apparatus

Patent metadata

Field	Value
Publication number	US-9349999-B2
Application number	US-201314074652-A
Country	US
Kind code	B2
Filing date	Nov 7, 2013
Priority date	Nov 19, 2012
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

An electric storage apparatus includes a battery cell, an accessory, a holding member for holding the battery cell and the accessory so that the battery cell and the accessory are on opposite sides, and a fixing member for fixing the accessory to the holding member. A distance between the fixing member and the battery cell is set to be equal to or larger than a distance between the holding member and the battery cell.

First claim

What is claimed is:

1. An electric storage apparatus, comprising:
a battery cell;
an accessory;
a holding member including a first side and a second side for holding the battery cell and the accessory, respectively, the first and second sides being opposite sides; and
a fixing member for fixing the accessory to the holding member, the fixing member including a first part and a second part, the first part having a larger sectional area than the second part, the first part being placed on the first side,
wherein, at a placing part of the first side where the first part is placed, a distance between the first part and the battery cell is set to be equal to or larger than a distance between the first side and the battery cell, and
wherein the first side faces the battery cell such that the distance between the first side and the battery cell is less than a distance between the second side and the battery cell.

2. The electric storage apparatus according to claim 1 , wherein the holding member includes a recessed section for preventing the fixing member from protruding toward the battery cell.

3. The electric storage apparatus according to claim 1 , wherein the holding member includes an opening for preventing the fixing member from protruding toward the battery cell.

4. The electric storage apparatus according to claim 2 , wherein the holding member comprises end plates arranged on both sides of the battery cell, and
wherein at least one of the end plates includes the recessed section.

5. The electric storage apparatus according to claim 3 , wherein the holding member comprises end plates arranged on both sides of the battery cell, and
wherein at least one of the end plates includes the opening.

6. The electric storage apparatus according to claim 2 , wherein the fixing member includes a bolt and a nut, the bolt including a head arranged in the recessed section and a shaft extending from the head and formed with a male screw, and the nut being screwed to the male screw of the shaft.

7. The electric storage apparatus according to claim 1 , wherein the second part is protruded from the second side.

8. The electric storage apparatus according to claim 1 , wherein the holding member includes a plate-shaped portion that includes the first and second sides.

9. The electric storage apparatus according to claim 1 , wherein the fixing member further includes a third part having a larger sectional area than the second part.

10. An electric storage apparatus, comprising:
a battery cell;
an accessory;
a holding member including a first side and a second side for holding the battery cell and the accessory, respectively, the first and second sides being opposite sides; and
a fixing member for fixing the accessory to the holding member, the fixing member including a first part and a second part, the first part having a larger diameter than the second part, the first part being placed on the first side,
wherein, at a placing part of the first side where the first part is placed, a distance between the first part and the battery cell is set to be equal to or larger than a distance between the first side and the battery cell, and
wherein the first side faces the battery cell such that the distance between the first side and the battery cell is less than a distance between the second side and the battery cell.

11. The electric storage apparatus according to claim 10 , wherein the second part is protruded from the second side.

12. The electric storage apparatus according to claim 10 , wherein the holding member includes a plate-shaped portion that includes the first and second sides.

13. The electric storage apparatus according to claim 10 , wherein the fixing member further includes a third part having a larger diameter than the second part.

14. An electric storage apparatus, comprising:
a plurality of battery cells arranged in a first direction;
an accessory;
a holding member including a first side and a second side for holding the battery cells and the accessory, respectively, the first and second sides being opposite sides; and
a fixing member for fixing the accessory to the holding member, the fixing member including a first part and a second part, the first part having a larger diameter than the second part, the first part being placed on the first side,
wherein, in the first direction, a distance between the first part and the battery cells is set to be equal to or larger than a distance between the first side and the battery cells, and
wherein the first side faces the battery cells such that the distance between the first side and the battery cells is less than a distance between the second side and the battery cells.

15. The electric storage apparatus according to claim 14 , wherein, at a placing part of the first side where the first part is placed, the distance between the first part and the battery cells is set to be equal to or larger than the distance between the first side and the battery cells.

16. The electric storage apparatus according to claim 14 , wherein the second part is protruded from the second side.

17. The electric storage apparatus according to claim 14 , wherein the holding member includes a plate-shaped portion that includes the first and second sides.

18. The electric storage apparatus according to claim 14 , wherein the fixing member further includes a third part having a larger diameter than the second part.

19. The electric storage apparatus according to claim 1 , wherein the first part faces the battery cell.

Assignees

• Lithium Energy Japan
• Gs Yuasa Int Ltd

Inventors

• Kusunoki Toshiki

Classifications

• H01M50/278 Primary

  Organic material · CPC title

• H01M50/262

  with fastening means, e.g. locks · CPC title

• H01M50/209 Primary

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

• H01M50/227

  Organic material · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title