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:
Feb. 19, 2013

Filed:

May. 15, 2012
Applicants:

Koji Morita, Fukushima, JP;

Hiroyuki Yamaguchi, Fukushima, JP;

Masayuki Ihara, Fukushima, JP;

Shunsuke Saito, Fukushima, JP;

Inventors:

Koji Morita, Fukushima, JP;

Hiroyuki Yamaguchi, Fukushima, JP;

Masayuki Ihara, Fukushima, JP;

Shunsuke Saito, Fukushima, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
Abstract

The invention provides a cathode active material that includes: a particle containing a cathode material capable of absorbing and releasing an electrode reactive material; and a film that is disposed at least partially to the particle and contains a metal salt represented by a formula (1). (R1 represents a (a1+b1+c1) valent group and M1 represents a metallic element. a1, d1, e1 and n each represent an integer of 1 or more and b1 and c1 each represent an integer of 0 or more. However, b1 and c1 satisfy (b1+c1)≧1.), a cathode therewith and a non-aqueous electrolyte secondary battery.


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