Battery pack

Patent metadata

Field	Value
Publication number	US-2016308182-A1
Application number	US-201615096029-A
Country	US
Kind code	A1
Filing date	Apr 11, 2016
Priority date	Apr 17, 2015
Publication date	Oct 20, 2016
Grant date	—

Abstract

A battery pack includes a battery cell, a case having a housing space accommodating the battery cell, an exhaust tube connecting the housing space to outside of the case; a treatment agent container connected to the exhaust tube, and a supply controller between the exhaust tube and the treatment agent container.

First claim

What is claimed is:

1 . A battery pack comprising:
a battery cell; a case having a housing space accommodating the battery cell; an exhaust tube connecting the housing space to outside of the case; a treatment agent container connected to the exhaust tube; and a supply controller between the exhaust tube and the treatment agent container.

2 . The battery pack of claim 1 , wherein the treatment agent container contains water or an alkalic substance mixed with water.

3 . The battery pack of claim 1 , wherein the supply controller is configured to close or open according to a flow of an exhaust gas in the exhaust tube.

4 . The battery pack of claim 1 , wherein the supply controller is configured to open by detecting a pressure and/or velocity of flow of an exhaust gas in the exhaust tube.

5 . The battery pack of claim 1 , wherein the supply controller is configured to open or close according to a difference between an opening pressure and a closing pressure.

6 . The battery pack of claim 1 , wherein the supply controller comprises:
a barrier wall having an opening connected to the exhaust tube; a closing block configured to contact the barrier wall and to cover the opening of the barrier wall; and an elastic member configured to elastically bias the closing block toward the opening.

7 . The battery pack of claim 1 , wherein the supply controller comprises a valve configured to open or close according to an electric signal.

8 . The battery pack of claim 1 , wherein the battery cell comprises a safety vent configured to break when an internal pressure of the battery cell exceeds a critical value, and
wherein the exhaust tube and the safety vent are in communication with each other via the housing space.

9 . The battery pack of claim 1 , wherein the battery pack comprises a plurality of battery cells,
wherein each of the battery cells comprises a safety vent, and wherein the safety vents of the battery cells are in communication with the exhaust tube via the housing space that is formed by inner walls of the case and is a non-divided space.

10 . The battery pack of claim 1 , wherein the exhaust tube provides an exhaust gas path extending from the case to outside of a vehicle in which the battery pack is installed.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Kim Byungryong

Classifications

• B60L50/64

  Constructional details of batteries specially adapted for electric vehicles · CPC title

• H01M50/271

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

• H01M50/209

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

• H01M50/249

  specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) · CPC title

• H01M50/367

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