Invention Grant
- Patent Title: Lithium iron phosphate containing sulfur compound based upon sulfide bond and lithium secondary battery using the same
- Patent Title (中): 基于硫化物键的含磷酸铁锂硫化合物和使用其的锂二次电池
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Application No.: US13647963Application Date: 2012-10-09
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Publication No.: US09214700B2Publication Date: 2015-12-15
- Inventor: Hyun Kuk Noh , Hong Kyu Park , Cheol-Hee Park , Su-Min Park , JiEun Lee
- Applicant: LG CHEM, LTD.
- Applicant Address: KR Seoul
- Assignee: LG CHEM, LTD.
- Current Assignee: LG CHEM, LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2010-0037086 20100421
- Main IPC: H01M4/02
- IPC: H01M4/02 ; H01M4/36 ; H01M4/52 ; H01M10/0525 ; H01M4/58
Abstract:
Disclosed is lithium iron phosphate having an olivine crystal structure, wherein the lithium iron phosphate has a composition represented by the following Formula 1, a sulfur compound with a sulfide bond is contained, as an impurity, in the lithium iron phosphate particles, and carbon (C) is coated on particle surfaces of the lithium iron phosphate: Li1+aFe1-xMx(PO4-b)Xb (1) (wherein M, X, a, x, and b are the same as defined in the specification).
Public/Granted literature
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