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:
Jul. 16, 2013
Filed:
Jan. 04, 2010
Ryoji Kanno, Yokohama, JP;
Masaaki Hirayama, Yokohama, JP;
Takayuki Kaneko, Yokohama, JP;
Yuichiro Imanari, Tsukuba, JP;
Kenji Nakane, Tsukuba, JP;
Ryoji Kanno, Yokohama, JP;
Masaaki Hirayama, Yokohama, JP;
Takayuki Kaneko, Yokohama, JP;
Yuichiro Imanari, Tsukuba, JP;
Kenji Nakane, Tsukuba, JP;
Tokyo Institute of Technology, Tokyo, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
The object of the present invention is to provide a method for producing simply a positive electrode active material which can further increase charge-discharge capacity of secondary batteries when the positive electrode active material is used for positive electrode of secondary batteries, particularly non-aqueous electrolyte secondary batteries. A method for producing a positive electrode active material includes the step of heat-treating a lithium mixed metal oxide represented by the formula LiMOin the presence of a hydride wherein M is at least one element selected from the group consisting of Ti, V, Mn, Fe, Co and Ni.