Invention Grant
- Patent Title: Positive electrode material for lithium-ion accumulator
- Patent Title (中): 锂离子蓄电池正极材料
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Application No.: US12821709Application Date: 2010-06-23
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Publication No.: US08999582B2Publication Date: 2015-04-07
- Inventor: Cecile Tessier , Julien Breger , Olivier Jan , Philippe Biensan , Bridget Deveney , Kamen Nechev
- Applicant: Cecile Tessier , Julien Breger , Olivier Jan , Philippe Biensan , Bridget Deveney , Kamen Nechev
- Applicant Address: FR Bagnolet
- Assignee: SAFT Groupe SA
- Current Assignee: SAFT Groupe SA
- Current Assignee Address: FR Bagnolet
- Agency: Sughrue Mion, PLLC
- Priority: FR0903045 20090623
- Main IPC: H01M4/131
- IPC: H01M4/131 ; C01B25/30 ; C01B25/37 ; C01B25/45 ; C01D15/02 ; C01G53/00 ; C04B35/01 ; C04B35/447 ; C04B35/628 ; H01M4/136 ; H01M4/485 ; H01M4/525 ; H01M4/58 ; H01M10/052 ; H01M10/0525 ; C01G49/00 ; C01G51/00 ; H01M4/13 ; H01M4/02
Abstract:
A composition including (a) a lithiated oxide of transition metals containing at least nickel, cobalt and aluminum and (b) a lithiated phosphate of at least one transition metal, the surface of which is at least partially covered by a layer of carbon. In the composition, the proportion by mass of the lithiated oxide of transition metals containing at least nickel, cobalt and aluminum is less than or equal to 10% of the weight of the composition, and the proportion by mass of the lithiated phosphate of at least one transition metal is greater than or equal to 90% of the weight of the composition. A lithium-ion or lithium-polymer type accumulator including at least one positive electrode containing this composition.
Public/Granted literature
- US20100320972A1 POSITIVE ELECTRODE MATERIAL FOR LITHIUM-ION ACCUMULATOR Public/Granted day:2010-12-23
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