Storage battery module

Patent metadata

Field	Value
Publication number	US-2022102807-A1
Application number	US-202017427609-A
Country	US
Kind code	A1
Filing date	Jan 22, 2020
Priority date	Jan 31, 2019
Publication date	Mar 31, 2022
Grant date	—

Abstract

An inner case houses a plurality of storage battery cells. An outer case houses the inner case. A first inner discharge port is provided in the inner case, and an outer discharge port is provided in a lower case. A first discharge path from a first position at the first inner discharge port to a second position and a second discharge path from the second position to a third position at the outer discharge port are provided in a space between the inner case and the outer case.

First claim

1 . A storage battery module comprising:
a plurality of storage battery cells; an inner case that houses the plurality of storage battery cells; and an outer case that houses the inner case, wherein an inner discharge port is provided in the inner case, an outer discharge port is provided in the outer case, and a first discharge path from a first position at the inner discharge port to a second position and a second discharge path from the second position to a third position at the outer discharge port are provided in a space between the inner case and the outer case.

2 . The storage battery module according to claim 1 , wherein
the inner case includes a first surface facing the outer case and a second surface facing the outer case and adjacent to the first surface, the first discharge path is formed on the first surface, and the second discharge path is formed on the second surface.

3 . The storage battery module according to claim 2 , wherein
the inner discharge port is provided on the first surface, the outer discharge port is provided outside the second surface, and the second discharge path passes through an extended space provided between the second surface and the outer discharge port.

4 . The storage battery module according to claim 2 , wherein
the inner case further includes a third surface that faces the outer case, is adjacent to the second surface, and faces a direction opposite to the first surface, some of the plurality of storage battery cells are provided in the inner case such that an anode faces the first surface, the rest of the plurality of storage battery cells are provided in the inner case such that the anode faces the third surface, the inner discharge port includes a first inner discharge port provided on the first surface and a second inner discharge port provided on the third surface, the first discharge path includes the first inner discharge port, and a third discharge path for joining the second discharge path leading from the second inner discharge port is provided on the third surface in a space between the inner case and the outer case.

5 . The storage battery module according to claim 3 , wherein
the inner case further includes a third surface that faces the outer case, is adjacent to the second surface, and faces a direction opposite to the first surface, some of the plurality of storage battery cells are provided in the inner case such that an anode faces the first surface, the rest of the plurality of storage battery cells are provided in the inner case such that the anode faces the third surface, the inner discharge port includes a first inner discharge port provided on the first surface and a second inner discharge port provided on the third surface, the first discharge path includes the first inner discharge port, and a third discharge path for joining the second discharge path leading from the second inner discharge port is provided on the third surface in a space between the inner case and the outer case.

6 . The storage battery module according to claim 4 , wherein
the inner case further includes a fourth surface that faces the outer case, is adjacent to the first surface and the third surface, and faces a direction opposite to the second surface, and a control circuit is provided on the fourth surface.

7 . The storage battery module according to claim 5 , wherein
the inner case further includes a fourth surface that faces the outer case, is adjacent to the first surface and the third surface, and faces a direction opposite to the second surface, and a control circuit is provided on the fourth surface.

8 . The storage battery module according to claim 1 , further comprising:
an intermediate case housing the inner case and housed in the outer case, wherein an intermediate discharge port is provided at the second position of the intermediate case, the first discharge path is formed in a space between the inner case and the intermediate case, and the second discharge path is formed in a space between the intermediate case and the outer case.

9 . The storage battery module according to claim 8 , wherein
the second discharge path passes through an extended space provided between a) a space between the intermediate case and the outer case and b) the outer discharge port.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Toya Shoichi
• Nakashima Takeshi
• Dong Ze Hai

Classifications

• H01M50/213 Primary

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

• H01M50/107

  having curved cross-section, e.g. round or elliptic (H01M50/103, H01M50/109, H01M50/11 take precedence) · CPC title

• H01M50/367 Primary

  Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems · CPC title

• H01M10/052

  Li-accumulators · CPC title

• H01M50/284

  with incorporated circuit boards, e.g. printed circuit boards [PCB] · CPC title