Power storage module including a cooling member

Patent metadata

Field	Value
Publication number	US-10998588-B2
Application number	US-201716322276-A
Country	US
Kind code	B2
Filing date	Jul 20, 2017
Priority date	Aug 3, 2016
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

A power storage module includes a cooling member that has a coolant and a sealing body hermetically sealing the coolant; a power storage element that is stacked on the cooling members; and a heat transfer plate that is stacked on the power storage elements with the cooling members therebetween. The sealing body is configured to form a bulging portion deformed by evaporation of the coolant in a region not overlapping the power storage element. The heat transfer plate has a folded portion with which the bulging portion is configured to abut.

First claim

The invention claimed is:

1. A power storage module comprising:
a cooling member that has a coolant and a sealing body hermetically sealing the coolant;
a power storage element that is stacked on the cooling member; and
a heat transfer plate that is stacked on the power storage element with the cooling member therebetween, wherein
the sealing body is configured to form a bulging portion deformed by evaporation of the coolant in the sealing body, wherein the bulging portion is provided in a region of the sealing body not overlapping the power storage element, and
the heat transfer plate has a folded portion with which the bulging portion is configured to abut.

2. The power storage module according to claim 1 , wherein a front end side of the folded portion has a bent portion that is bent toward the bulging portion.

3. The power storage module according to claim 1 , wherein the bulging portion is disposed inside the folded portion.

4. The power storage module according to claim 1 , comprising:
a plurality of the cooling members;
a plurality of the power storage elements; and
a plurality of the heat transfer plates, wherein
a plurality of the folded portions provided in each of the plurality of heat transfer plates are disposed with a space therebetween, and
the bulging portion is sandwiched between the folded portions.

5. The power storage module according to claim 1 , comprising:
the plurality of cooling members;
the plurality of power storage elements; and
the plurality of heat transfer plates, wherein
a plurality of the folded portions provided in each of the plurality of heat transfer plates are disposed with a space therebetween, and
the plurality of heat transfer plates include a spacer sandwiched between the folded portions in the plurality of heat transfer plates.

6. The power storage module according to claim 1 , wherein the cooling member includes an absorption member that is disposed in the sealing body to absorb the coolant.

Assignees

• Autonetworks Technologies Ltd
• Sumitomo Wiring Systems
• Sumitomo Electric Industries

Inventors

• KUBOKI Hideyuki
• Hirai Hiroki
• Higashikozono Makoto
• Hosoe Akihisa
• Hirose Yoshiyuki
• Nagafuchi Akihiro
• Takeyama Tomoharu
• Kobayashi Eiichi

Classifications

• H01M50/211

  adapted for pouch cells · CPC title

• H01G11/18

  against thermal overloads, e.g. heating, cooling or ventilating · CPC title

• H01M10/6557

  arranged between the cells · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M10/6555

  arranged between the cells · CPC title