Title:
SECONDARY BATTERY PACKAGING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/080449
Kind Code:
A1
Abstract:
Disclosed is a secondary battery packaging material having a layered structure comprising: an outer layer made from a heat resistant resin film; a metal foil gas barrier layer; and an inner layer made from a composition containing a thermoplastic polyolefin, the packaging material being heat-sealable in low heat-sealing temperature conditions and exhibiting improved heat resistance and shape stability in a high-temperature environment. The present invention provides a secondary battery packaging material having a layered structure comprising: an outer layer made from a heat resistant resin film; a metal foil gas barrier layer; and an inner layer made from a composition containing a thermoplastic polyolefin, wherein the composition constituting the inner layer has at least three endothermic peaks in a temperature-calorie curve of successive self-nucleation and annealing (SSA) measurement using differential scanning calorimetry (DSC), and the endothermic peaks appear at 90-180°C.
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Inventors:
CHO JIN JU (KR)
KIM MIN KYU (KR)
BYEON JUI (KR)
KIM SONG HO (KR)
KIM MIN KYU (KR)
BYEON JUI (KR)
KIM SONG HO (KR)
Application Number:
PCT/KR2022/014485
Publication Date:
May 11, 2023
Filing Date:
September 27, 2022
Export Citation:
Assignee:
LOTTE CHEMICAL CORP (KR)
International Classes:
H01M50/129; B32B15/085; H01M50/105; H01M50/131; H01M50/14
Foreign References:
| KR20140067521A | 2014-06-05 | |||
| KR20130081445A | 2013-07-17 | |||
| KR20140007931A | 2014-01-20 | |||
| KR20210018617A | 2021-02-18 | |||
| KR101378176B1 | 2014-03-27 |
Attorney, Agent or Firm:
PARK, Sang Hoon (KR)
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