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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 9742007 B1

PDFFull Text
Date of Patent:
Aug. 22, 2017

Filed:

Feb. 27, 2014

Active material, electrode, secondary battery, battery pack, electric vehicle, electric power storage system, electric power tool, and electronic apparatus

Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Takakazu Hirose, Kanagawa, JP;

Kenichi Kawase, Kanagawa, JP;

Toshio Nishi, Saitama, JP;

Isao Koizumi, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:

K&L Gates LLP

Primary Examiner:

Jayne Mershon

Int. Cl.
CPC ...
H01M 4/38 (2006.01); H01M 4/485 (2010.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 4/36 (2006.01); H01M 4/66 (2006.01);
U.S. Cl.
CPC ...
H01M 4/386 (2013.01); H01M 4/485 (2013.01); H01M 4/5825 (2013.01); H01M 4/62 (2013.01); H01M 4/366 (2013.01); H01M 4/661 (2013.01); H01M 4/663 (2013.01); H01M 4/666 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01);
Abstract

A secondary battery includes: a cathode; an anode including an active material; and an electrolytic solution, wherein the active material includes a central section and a covering section provided on a surface of the central section, the central section includes silicon (Si) as a constituent element, the covering section includes carbon (C) and hydrogen (H) as constituent elements, and one or more of positive ions represented by CxHy (x and y satisfy 2≦x≦6 and 3≦y≦9) are detected by positive ion analysis of the covering section with the use of time-of-flight secondary ion mass spectrometry.

Find Patent Forward Citations

Hirose, Takakazu. (2017). Active material, electrode, secondary battery, battery pack, electric vehicle, electric power storage system, electric power tool, and electronic apparatus (U.S. Patent No. 9742007). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9742007

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

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