Invention Grant
- Patent Title: Silicon powder for use in anodes for lithium-ion batteries and method for production of silicon powder
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Application No.: US16498699Application Date: 2018-04-05
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Publication No.: US11322741B2Publication Date: 2022-05-03
- Inventor: Jarl Erik Morsund Flatoy , Harry Morten Rong , Torbjorn Roe
- Applicant: ELKEM ASA
- Applicant Address: NO Oslo
- Assignee: ELKEM ASA
- Current Assignee: ELKEM ASA
- Current Assignee Address: NO Oslo
- Agency: Lucas & Mercanti, LLP
- Priority: NO20170577 20170406
- International Application: PCT/NO2018/050089 WO 20180405
- International Announcement: WO2018/186749 WO 20181011
- Main IPC: H01B1/04
- IPC: H01B1/04 ; H01M4/00 ; C01B33/02 ; H01M4/38 ; B02C23/20 ; C01B33/037 ; H01M10/0525 ; B03B5/62 ; H01M4/02
Abstract:
The present invention relates to a silicon powder, where the size of the silicon powder particles are between 3 and 30 μm, a particle size fraction D10 of the silicon powder particles is between 3 and 9 μm, and where the silicon powder particles have no, or substantially no, silicon particles with a size smaller than D10 attached to the surface. The silicon powder according to the present invention is produced by wet classifying produced silicon powders.
Public/Granted literature
- US20200044245A1 SILICON POWDER FOR USE IN ANODES FOR LITHIUM-ION BATTERIES AND METHOD FOR PRODUCTION OF SILICON POWDER Public/Granted day:2020-02-06
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