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:
Dec. 15, 2015

Filed:

Mar. 15, 2013
Applicant:

Asahi Glass Company, Limited, Chiyoda-ku, JP;

Inventors:

Takehiro Kose, Chiyoda-ku, JP;

Mitsuru Seki, Chiyoda-ku, JP;

Masao Iwaya, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/62 (2006.01); H01M 4/13 (2010.01); H01M 10/052 (2010.01); H01M 4/1391 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/04 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); H01M 4/13 (2013.01); H01M 4/1391 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/623 (2013.01); H01M 4/624 (2013.01); H01M 10/052 (2013.01); H01M 4/0404 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); Y02E 60/122 (2013.01);
Abstract

To provide a positive electrode material mixture for a non-aqueous secondary battery, which is less likely to be gelled and has a good applicability to a current collector, and is capable of producing a battery capable of sufficiently exhibiting practical performance. A positive electrode material mixture which comprises a cathode active material, a binder containing a fluorinated copolymer having polymerized units derived from tetrafluoroethylene and polymerized units derived from propylene, and an aqueous medium, wherein the cathode active material is that the pH of a supernatant obtained by mixing the cathode active material with water is at least 10, and a positive electrode and a secondary battery, obtainable by employing it.


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