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:
Feb. 02, 2010
Filed:
Nov. 09, 2007
Masahisa Fujimoto, Osaka, JP;
Yasuyuki Kusumoto, Kobe, JP;
Masahide Miyake, Kobe, JP;
Hiroaki Ikeda, Shimonoseki, JP;
Shin Fujitani, Kobe, JP;
Masahisa Fujimoto, Osaka, JP;
Yasuyuki Kusumoto, Kobe, JP;
Masahide Miyake, Kobe, JP;
Hiroaki Ikeda, Shimonoseki, JP;
Shin Fujitani, Kobe, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A method of manufacturing an electrode active material particle for a rechargeable battery wherein a layer of an active material capable of being alloyed with Li is formed on a surface of a metal particle incapable of being alloyed with Li and then a heat treatment is conducted to diffuse the active material into the metal particle so that the resulting active material particle has a concentration profile in which a concentration of a metal element of the metal particle decreases from an interior toward the surface.