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:
Jan. 14, 2014

Filed:

Nov. 12, 2007
Applicants:

Shinya Kawasoe, Tokyo, JP;

Hiroshi Hatayama, Tokyo, JP;

Takashi Ikemoto, Tokyo, JP;

Inventors:

Shinya Kawasoe, Tokyo, JP;

Hiroshi Hatayama, Tokyo, JP;

Takashi Ikemoto, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

A separator for a lithium ion secondary battery with an alloy based negative electrode, wherein a dynamic friction coefficient of at least one surface is 0.1 or more and 0.4 or less, and a method for manufacturing the same.


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