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.

Date of Patent:
Jun. 09, 2020

Filed:

May. 05, 2016
Applicant:

Asahi Kasei E-materials Corporation, Tokyo, JP;

Inventors:

Masahiro Ohashi, Tokyo, JP;

Keitaro Ameyama, Tokyo, JP;

Yuzuru Sakakibara, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); B29C 48/00 (2019.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/20 (2006.01); B32B 27/32 (2006.01); H01M 2/14 (2006.01); B29C 67/20 (2006.01); H01M 10/0525 (2010.01); H01M 10/052 (2010.01); B29K 23/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1686 (2013.01); B29C 48/0018 (2019.02); B29C 67/202 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/205 (2013.01); B32B 27/32 (2013.01); H01M 2/145 (2013.01); H01M 2/166 (2013.01); H01M 2/1653 (2013.01); H01M 10/0525 (2013.01); B29K 2023/12 (2013.01); B29L 2031/755 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2250/242 (2013.01); B32B 2250/40 (2013.01); B32B 2264/102 (2013.01); B32B 2270/00 (2013.01); B32B 2305/026 (2013.01); B32B 2305/30 (2013.01); B32B 2307/306 (2013.01); B32B 2307/518 (2013.01); B32B 2307/724 (2013.01); H01M 10/052 (2013.01); Y02T 10/7011 (2013.01);
Abstract

Disclosed is a laminated separator including a first polyolefin microporous layer and a second polyolefin microporous layer which is laminated on the first polyolefin microporous layer and which is different from the first polyolefin microporous layer, wherein at least one of the first microporous layer and the second microporous layer includes an inorganic particle having a primary particle size of 1 nm or more and 80 nm or less.


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