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Patent Searching and Data


Title:
BATTERY PACK PROVIDED WITH DEGASSING FLOW CHANNEL
Document Type and Number:
WIPO Patent Application WO/2019/203460
Kind Code:
A1
Abstract:
A battery pack according to one aspect of the present invention comprises: a pack case that accommodates a cell module assembly in an inner space thereof and is provided with an opening part on one side thereof; and a pack cover that is provided with a degassing port in communication with the inner space and that covers the opening part of the pack case. The cell module assembly is provided with: a cell stack composed of secondary battery cells; and a cell fixing frame provided with an upper plate and a lower plate that are respectively disposed above and below the cell stack and are respectively facing and in close contact with an upper wall and a lower wall of the pack case. At least one among the upper plate and the lower plate is provided with: at least one gas transport route that is recessed, along a predetermined path toward the degassing port, at least one region of one surface disposed facing the corresponding upper wall or lower wall of the pack case; and at least one vertically open through-hole in the gas transport route, wherein the at least one through-hole can be formed vertically above or below a gas pocket part which is a space in which gas that escapes from at least one side of the cell stack is collected.

Inventors:
KWON HEE-YONG (KR)
SEONG JUN-YEOB (KR)
CHO YONG-JIN (KR)
Application Number:
PCT/KR2019/003265
Publication Date:
October 24, 2019
Filing Date:
March 20, 2019
Export Citation:
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Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/42; H01M50/211; H01M50/264; H01M50/271; H01M50/284; H01M50/35
Foreign References:
KR20150059515A2015-06-01
JP2012079510A2012-04-19
KR20160105354A2016-09-06
KR20160082073A2016-07-08
JP2013114952A2013-06-10
KR20180046302A2018-05-08
KR20160112768A2016-09-28
Other References:
See also references of EP 3699976A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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