Invention Grant
- Patent Title: High density lithium cobalt oxide for rechargeable batteries
- Patent Title (中): 高密度锂钴氧化物用于充电电池
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Application No.: US12665428Application Date: 2008-06-10
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Publication No.: US08337727B2Publication Date: 2012-12-25
- Inventor: Zhaohui Chen , Robert Ellenwood
- Applicant: Zhaohui Chen , Robert Ellenwood
- Applicant Address: BE Brussels
- Assignee: Umicore
- Current Assignee: Umicore
- Current Assignee Address: BE Brussels
- Agency: Brinks Hofer Gilson & Lione
- Priority: EP07012781 20070629; EP07023548 20071205
- International Application: PCT/EP2008/004629 WO 20080610
- International Announcement: WO2009/003573 WO 20090108
- Main IPC: H01B1/08
- IPC: H01B1/08 ; C01G51/00 ; H01M4/52 ; H01M4/02

Abstract:
The disclosure relates to positive electrode material used for Li-ion batteries, a precursor and process used for preparing such materials, and Li-ion battery using such material in its positive electrode. The disclosure describes a higher density LiCoO2 positive electrode material for lithium secondary batteries, with a specific surface area (BET) below 0.2 m2/g, and a volumetric median particle size (d50) of more than 15 μm. This product has, improved specific capacity and rate-capability. Other embodiments of the disclosure are an aggregated Co(OH)2, which is used as a precursor, the electrode mix and the battery manufactured using abovementioned LiCoO2.
Public/Granted literature
- US20100176352A1 High Density Lithium Cobalt Oxide for Rechargeable Batteries Public/Granted day:2010-07-15
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