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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 10516153 B1

PDFFull Text
Date of Patent:
Dec. 24, 2019

Filed:

Jan. 18, 2016

Negative-electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery

Applicant:

Sanyo Electric Co., Ltd., Daito-shi, Osaka, JP;

Inventors:

Taizou Sunano, Tokushima, JP;

Hiroshi Minami, Hyogo, JP;

Yoshio Kato, Osaka, JP;

Yohei Uchiyama, Hyogo, JP;

Assignee:

SANYO Electric Co., Ltd., Daito-shi, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Jonathan Crepeau

Int. Cl.
CPC ...
H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 4/131 (2010.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/02 (2013.01); H01M 4/131 (2013.01); H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/38 (2013.01); H01M 4/386 (2013.01); H01M 10/052 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract

The initial charge/discharge efficiency and cycle characteristics of a non-aqueous electrolyte secondary battery that contains a silicon material as a negative-electrode active material are improved. A negative-electrode active material particle () according to an embodiment includes a lithium silicate phase () represented by LiSiO{0<z<2} and silicon particles () dispersed in the lithium silicate phase (). The silicon particles () have a crystallite size of 40 nm or less. The crystallite size is calculated using the Scherrer equation from the half-width of the diffraction peak of the Si (111) plane in an XRD pattern obtained by XRD measurement of the negative-electrode active material particle

Find Patent Forward Citations

Sunano, Taizou. (2019). Negative-electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery (U.S. Patent No. 10516153). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10516153

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

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