Title:
BATTERY CASE PACKAGING MATERIAL FOR COLD MOLDING COMPRISING BIAXIALLY-STRETCHED POLYBUTYLENE TEREPHTHALATE FILM
Document Type and Number:
WIPO Patent Application WO/2012/086741
Kind Code:
A1
Abstract:
[Problem] To provide a battery case packaging material for cold molding, in which a biaxially-stretched polybutylene terephthalate film is used as a base layer and/or a barrier material reinforcing layer, whereby it becomes possible to produce a packaging material for cold molding, particularly a packaging material for a battery such as a lithium ion secondary battery, which contains a biaxially-stretched polybutylene terephthalate film that does not lose acid resistance or moisture-proof properties and maintains excellent cold-moldability, and therefore has excellent moisture-proof properties, acid resistance and cold moldability. [Solution] A battery case packaging material for cold molding, comprising a barrier layer and a sealant layer laminated in this order, or comprising a base layer, a barrier layer, a barrier material reinforcing layer and a sealant layer laminated in this order, wherein a biaxially-stretched polybutylene terephthalate film is used as the base layer and/or the barrier material reinforcing layer.
Inventors:
NAGAE Shuichi (LTD. Yatsushiro Factory 1-1 Koukokumach, Yatsushiro-shi Kumamoto 86, 〒8668686, JP)
永江 修一 (〒86 熊本県八代市興国町１－１ 株式会社興人 八代工場内 Kumamoto, 〒8668686, JP)
HAMADA Kazuhiro (LTD. Yatsushiro Factory 1-1 Koukokumach, Yatsushiro-shi Kumamoto 86, 〒8668686, JP)
浜田 和宏 (〒86 熊本県八代市興国町１－１ 株式会社興人 八代工場内 Kumamoto, 〒8668686, JP)
永江 修一 (〒86 熊本県八代市興国町１－１ 株式会社興人 八代工場内 Kumamoto, 〒8668686, JP)
HAMADA Kazuhiro (LTD. Yatsushiro Factory 1-1 Koukokumach, Yatsushiro-shi Kumamoto 86, 〒8668686, JP)
浜田 和宏 (〒86 熊本県八代市興国町１－１ 株式会社興人 八代工場内 Kumamoto, 〒8668686, JP)
Application Number:
JP2011/079770
Publication Date:
June 28, 2012
Filing Date:
December 22, 2011
Export Citation:
Assignee:
KOHJIN Co., Ltd. (1-21, Nihombashi-muromachi 4-chome Chuo-ku Tokyo, 22, 〒1030022, JP)
株式会社興人 (〒22 東京都中央区日本橋室町４丁目１－２１ Tokyo, 〒1030022, JP)
NAGAE Shuichi (LTD. Yatsushiro Factory 1-1 Koukokumach, Yatsushiro-shi Kumamoto 86, 〒8668686, JP)
永江 修一 (〒86 熊本県八代市興国町１－１ 株式会社興人 八代工場内 Kumamoto, 〒8668686, JP)
HAMADA Kazuhiro (LTD. Yatsushiro Factory 1-1 Koukokumach, Yatsushiro-shi Kumamoto 86, 〒8668686, JP)
株式会社興人 (〒22 東京都中央区日本橋室町４丁目１－２１ Tokyo, 〒1030022, JP)
NAGAE Shuichi (LTD. Yatsushiro Factory 1-1 Koukokumach, Yatsushiro-shi Kumamoto 86, 〒8668686, JP)
永江 修一 (〒86 熊本県八代市興国町１－１ 株式会社興人 八代工場内 Kumamoto, 〒8668686, JP)
HAMADA Kazuhiro (LTD. Yatsushiro Factory 1-1 Koukokumach, Yatsushiro-shi Kumamoto 86, 〒8668686, JP)
International Classes:
H01M2/02; B29C55/16; B32B27/36; B29K67/00; B29L7/00
Claims:
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