Invention Grant
- Patent Title: Process for making a cathode active material and a precursor therefore, cathode active material and its use
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Application No.: US15751308Application Date: 2016-08-10
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Publication No.: US10707486B2Publication Date: 2020-07-07
- Inventor: Simon Schroedle , Thomas Michael Ryll , Aleksei Volkov , Ji-Yong Shin , Jordan K. Lampert
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2c163c56
- International Application: PCT/EP2016/069032 WO 20160810
- International Announcement: WO2017/029166 WO 20170223
- Main IPC: H01M4/52
- IPC: H01M4/52 ; H01M4/525 ; C01G53/00 ; H01M4/505 ; H01M4/131 ; C01G53/04 ; H01M10/0525 ; H01M10/0567 ; H01M10/42 ; H01M10/052 ; H01M4/02

Abstract:
The present invention is directed towards a process for making a particulate material according to the general formula (I): NiaCObMncMd(O)x(OH)y, wherein M is selected from Al and Ti, x is in the range of from 0.01 to 0.9, y is in the range of from 1.1 to 1.99, a is in the range of from 0.3 to 0.85, b is in the range of from 0.05 to 0.4, c is in the range of from 0.1 to 0.5, d is in the range of from 0.001 to 0.03, with a+b+c+d=1 said process comprising the following steps: (a) providing an aqueous slurry of particles of aluminum hydroxide or titanium dioxide, (b) adding an aqueous solution of water-soluble salts of nickel, cobalt and manganese and a solution of alkali metal hydroxide to the slurry according to step (a), thereby co-precipitating a layer of a mixed hydroxide of nickel and cobalt and manganese hydroxide on the particles according to step (a), (c) removing particles of (NiaCObMncAld)(OH)2+d or (NiaCObMncTid)(OH)2+2d so obtained and drying them in the presence of oxygen.
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