Invention Grant
- Patent Title: Method for preparing silicon-carbon-graphene composite, composite prepared according thereto, and secondary battery to which same is applied
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Application No.: US16483932Application Date: 2017-05-23
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Publication No.: US11362326B2Publication Date: 2022-06-14
- Inventor: Hee-Dong Jang , Han-Kwon Chang , Dae-Sup Kil , Ji-Hyuk Choi , Sun-Kyung Kim
- Applicant: Korea Institute Of Geoscience And Mineral Resources
- Applicant Address: KR Daejeon
- Assignee: Korea Institute Of Geoscience And Mineral Resources
- Current Assignee: Korea Institute Of Geoscience And Mineral Resources
- Current Assignee Address: KR Daejeon
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: KR10-2017-0018239 20170209
- International Application: PCT/KR2017/005334 WO 20170523
- International Announcement: WO2018/147508 WO 20180816
- Main IPC: H01M4/02
- IPC: H01M4/02 ; H01M4/36 ; C01B33/021 ; C04B35/528 ; C04B35/626 ; C04B35/64 ; H01M4/38 ; H01M4/583
Abstract:
An embodiment of the present invention provides a method for preparing a silicon-carbon-graphene composite, comprising the steps of: (step 1) adding a carbon precursor solution to silicon and performing wet grinding so as to prepare a suspension: (step 2) forming a silicon-carbon composite by spray drying the suspension; and (step 3) spray drying and heat treating a solution comprising the silicon-carbon composite and graphene oxide.
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