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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 9899670 B1

PDFFull Text
Date of Patent:
Feb. 20, 2018

Filed:

Jan. 09, 2014

Secondary battery-use active material, secondary battery-use electrode, secondary battery, battery pack, electric vehicle, electric power storage system, electric power tool, and electronic apparatus

Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Masaki Misawa, Tochigi, JP;

Toru Odani, Fukushima, JP;

Toshio Nishi, Saitama, JP;

Assignee:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Attorney:

K&L Gates LLP

Primary Examiner:

Brittany Raymond

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/525 (2010.01); H01M 4/60 (2006.01); H01M 10/052 (2010.01); H01M 10/0566 (2010.01); H01M 10/058 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/525 (2013.01); H01M 4/60 (2013.01); H01M 10/052 (2013.01); H01M 10/058 (2013.01); H01M 10/0566 (2013.01); H01M 2004/028 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract

A secondary battery includes: a cathode; an anode; and an electrolytic solution. The cathode contains an active material capable of inserting and extracting an electrode reactant. A ratio IS/IF of a peak intensity IS derived from SOand a peak intensity IF derived from LiFis 0.04 or more, the peak intensity IS and the peak intensity IF being obtained by negative ion analysis on the active material with use of time-of-flight secondary ion mass spectrometry. Since a secondary battery according to the present invention has an intensity ratio IS/IF of 0.04 or more as obtained by a negative ion analysis of the active material using time-of-flight secondary ion mass spectrometry, the secondary battery is able to achieve excellent battery characteristics.

Find Patent Forward Citations

Misawa, Masaki. (2018). Secondary battery-use active material, secondary battery-use electrode, secondary battery, battery pack, electric vehicle, electric power storage system, electric power tool, and electronic apparatus (U.S. Patent No. 9899670). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9899670

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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