A patent review of aluminum plastic film for lithium-ion battery

doi:10.12028/j.issn.2095-4239.2018.0118

Abstract

Abstract: The application trend, nationality distribution, major applicants, the technical means and technical efficacy distribution and the key patent of aluminum plastic film for lithium-ion battery were investigated from the perspective of patents. The result shows that patent applications increased rapidly since 2011. Japan, China, and South Korea are main technology exporter, and Japan has an absolute technological advantage while China and South Korea are emerging forces. Toppan Printing, DIC, Showa Denko, and DNP are major applicants, the gap between Chinese applicants and these applicants is huge. Using aluminum foil, sealant layer, adhesive layer or additional layer to improve peeling strength and corrosion resistance, using aluminum foil, base material layer, additional layer to improve molding performance, using additional layer to improve barrier and mechanical performance of the aluminum-plastic film are technical research hotspot.

Key words: lithium-ion battery, aluminum plastic film, aluminum foil, base material layer, adhesive layer, additional layer, sealant layer

CLC Number:

TM911

CUI Haixing. A patent review of aluminum plastic film for lithium-ion battery[J]. Energy Storage Science and Technology, 2019, 8(1): 209-214.

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