Cell module assembly receiving structure having improved safety

Patent metadata

Field	Value
Publication number	US-10847765-B2
Application number	US-201715766590-A
Country	US
Kind code	B2
Filing date	Feb 13, 2017
Priority date	Feb 12, 2016
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

The present disclosure discloses a cell module assembly receiving structure including: a cell module assembly comprising a plurality of cells; and a receiving device having an inner space capable of receiving the cell module assembly, wherein the receiving device includes a first partition wall disposed to extend from a first wall in a direction toward a second wall facing the first wall and a second partition wall disposed to extend from the second wall in a direction toward the first wall, wherein a sum of an extension length of the first partition wall and an extension length of the second partition wall is greater than or equal to a distance between the first wall and the second wall.

First claim

What is claimed is:

1. A cell module assembly receiving structure comprising:
a cell module assembly comprising a plurality of cells; and
a receiving device having an inner space formed between a first side wall and a second side wall facing the first side wall,
wherein the receiving device includes:
a first partition wall having a first end attached to the first side wall and extending in a direction toward the second side wall and a second end spaced from the second side wall;
a second partition wall having a first end attached to the second side wall and extending in a direction toward the first side wall, and a second end spaced from the first side wall; and
a vent formed to communicate with a space outside the first partition wall and the second partition wall in the receiving device and configured to selectively discharge gaseous byproducts; and
a mesh member disposed in a portion corresponding to a venting hole of the vent,
wherein an extension length of the first partition wall is less than a distance between the first side wall and the second side wall and an extension length of the second partition wall is less than the distance between the first side wall and the second side wall,
wherein a sum of the extension length of the first partition wall and the extension length of the second partition wall is greater than or equal to a distance between the first wall and the second wall,
wherein the first partition wall and second partition wall divide the inner space into a first compartment between the first partition wall and a first end wall and a second compartment between the second partition wall and a second end wall, the cell module assembly housed within the first compartment, and
wherein the vent is in a third compartment communicating with the second compartment, the third compartment formed by walls outwardly protruding from the first side wall.

2. The cell module assembly receiving structure of claim 1 , wherein at least two first partition walls are arranged side by side, and
the second partition wall is inserted between the first partition walls.

3. The cell module assembly receiving structure of claim 1 , wherein the venting hole is selectively opened to communicate with the outside of the receiving device at an internal pressure of 0.5 bar or higher.

4. The cell module assembly receiving structure of claim 1 , further comprising a fire retardant material disposed between the first partition wall and the second partition wall.

5. The cell module assembly receiving structure of claim 1 , wherein the receiving device includes a top wall and a bottom wall, and
wherein the first partition wall and the second partition wall extend between the top wall and the bottom wall.

Assignees

• Lg Chemical Ltd

Inventors

• Son Jeong-Man
• Kim Kwang-Il
• Kim Do-Gyun
• Kim Tae-Wook
• Lee Jun-Hee

Classifications

• H01M50/24 Primary

  adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) · CPC title

• H01M50/289

  characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471) · CPC title

• H01M50/211

  adapted for pouch cells · CPC title

• H01M50/394

  Gas-pervious parts or elements · CPC title

• H01M50/572

  Means for preventing undesired use or discharge · CPC title