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.:
Date of Patent:
Apr. 18, 2017
Filed:
Dec. 24, 2013
Sanyo Electric Co., Ltd., Daito-shi, Osaka, JP;
Taiki Satow, Hyogo, JP;
Masaki Deguchi, Tokushima, JP;
Kentaro Takahashi, Hyogo, JP;
Masaya Ugaji, Tokushima, JP;
SANYO Electric Co., Ltd., Daito-shi, Osaka, JP;
Abstract
A negative electrode for nonaqueous electrolyte secondary batteries includes a negative electrode core member and a negative electrode mixture layer attached to the negative electrode core member, wherein the negative electrode mixture layer contains negative electrode active material particles with a graphite structure and a binder, the mixture density of the negative electrode mixture layer is 1.5 g/cmto 1.8 g/cm, the ratio I/Iof the diffraction intensity Iof the (002) plane to the diffraction intensity Iof the (110) plane satisfies 60≦I/I≦120 as determined by measuring the negative electrode mixture layer by an X-ray diffraction method, the amount of particles with a size of 1 μm to 10 μm in the particle size distribution of a crushed product of the negative electrode mixture layer is 12% to 25% by volume.