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. 26, 2016
Filed:
Apr. 17, 2012
Yun Ju Cho, Chungcheongnam-do, KR;
Pil Sang Yun, Chungcheongnam-do, KR;
MI Sun Lee, Chungcheongnam-do, KR;
Hae IN Cho, Chungcheongnam-do, KR;
Yun Ju Cho, Chungcheongnam-do, KR;
Pil Sang Yun, Chungcheongnam-do, KR;
Mi Sun Lee, Chungcheongnam-do, KR;
Hae In Cho, Chungcheongnam-do, KR;
SAMSUNG SDI CO., LTD., Yongin-si, Gyeonggi-do, KR;
Abstract
A method for preparing a positive active material for a lithium ion secondary battery, the method including obtaining a mixture by mixing a lithium containing compound and metal oxide, distributing powder of a lithium containing compound into a furnace, and heat treating the mixture in the furnace, wherein a thermal decomposition temperature of the lithium containing compound power distributed into the furnace is lower than that of the lithium containing compound mixed with the metal oxide.