Patent Number: 8,877,382

Title: Method for manufacturing positive active material for rechargeable lithium battery and rechargeable lithium battery using same

Abstract: A method for preparing a positive active material for a rechargeable lithium battery includes: a) providing a furnace and a crucible that is included in the furnace; b) putting a mixture of a composite metal precursor and a lithium compound into the crucible; and c) preparing a positive active material for a rechargeable lithium battery by firing the mixture in the crucible, wherein during the process b), the mixture in the crucible is positioned so that a minimum distance from a predetermined position inside the mixture to an exterior of the mixture in the crucible is about 5 cm or less. A rechargeable lithium made by this method is disclosed.

Inventors: Kim; Min-Han (Yongin-si, KR), Park; Do-Hyung (Yongin-si, KR), Kwon; Seon-Young (Yongin-si, KR), Song; Yu-Mi (Yongin-si, KR), Kim; Ji-Hyun (Yongin-si, KR), Kim; Kyoung-Hyun (Yongin-si, KR)

Assignee: Samsung SDI Co., Ltd.

International Classification: H01M 4/1391 (20100101); C01D 15/02 (20060101); H01M 4/131 (20100101); C01D 1/02 (20060101); C01G 45/12 (20060101)

Expiration Date: 2019-11-04 0:00:00