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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10581032 B1

PDFFull Text
Date of Patent:
Mar. 03, 2020

Filed:

Sep. 01, 2016

Lithium battery packaging material

Applicant:

Toppan Printing Co., Ltd., Tokyo, JP;

Inventors:

Takuya Muraki, Tokyo, JP;

Tomohiko Yamazaki, Tokyo, JP;

Masayoshi Suzuta, Tokyo, JP;

Assignee:

TOPPAN PRINTING CO., LTD., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Wyatt P McConnell

Int. Cl.
CPC ...
H01M 2/02 (2006.01); B32B 7/12 (2006.01); B32B 15/08 (2006.01); B32B 27/32 (2006.01); B32B 15/088 (2006.01); B32B 15/20 (2006.01); B32B 27/34 (2006.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 2/0287 (2013.01); B32B 7/12 (2013.01); B32B 15/08 (2013.01); B32B 15/088 (2013.01); B32B 15/20 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 2255/06 (2013.01); B32B 2255/26 (2013.01); B32B 2307/518 (2013.01); B32B 2307/714 (2013.01); B32B 2439/40 (2013.01); B32B 2457/10 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 2220/30 (2013.01);
Abstract

A lithium battery packaging material of the present invention includes a laminate in which a substrate layer, a first adhesive layer, a metal foil layer, a corrosion prevention treatment layer, a second adhesive layer, and a sealant layer are laminated in this order. In the packaging material, the corrosion prevention treatment layer contains an rare-earth oxide, and 1 to 100 parts by mass of phosphoric acid or phosphate relative to 100 parts by mass of the rare-earth oxide, the second adhesive layer includes an adhesive composition containing an acid modified polyolefin resin and a polyfunctional isocyanate compound, and, in an infrared absorption spectrum of the second adhesive layer, a ratio (Y/X) between absorption (X) derived from C—H bending vibration of CHand absorption (Y) derived from N—H bending vibration of a biuret bond is 0.3 or less.

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