- 专利标题: Preparation method of graphene and dispersed composition of graphene
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申请号: US15039281申请日: 2014-12-22
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公开(公告)号: US10131803B2公开(公告)日: 2018-11-20
- 发明人: Kwon Nam Sohn , Kwang Hyun Yoo , Won Jong Kwon , Kil Sun Lee , Seung Bo Yang , In Young Kim , Mi Jin Lee , Jin Yeong Lee
- 申请人: LG Chem, Ltd.
- 申请人地址: KR
- 专利权人: LG Chem, Ltd.
- 当前专利权人: LG Chem, Ltd.
- 当前专利权人地址: KR
- 代理机构: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- 优先权: KR10-2013-0164671 20131226; KR10-2014-0184902 20141219
- 国际申请: PCT/KR2014/012640 WO 20141222
- 国际公布: WO2015/099378 WO 20150702
- 主分类号: C01B32/19
- IPC分类号: C01B32/19 ; B82Y40/00 ; C09D7/20 ; C09D1/00 ; C09D5/24 ; C09D5/32 ; C09D11/52 ; C09K5/14 ; H01B1/04 ; H01M4/62 ; H05K9/00 ; C01B32/184
摘要:
Disclosed herein are a preparation method of graphene, capable of easily preparing a graphene flake having a smaller thickness and a large area, and a dispersed composition of graphene obtained using the same. The preparation method of graphene includes applying a physical force to dispersion of a carbon-based material including graphite or a derivative thereof, and a dispersant, wherein the dispersant includes a mixture of plural kinds of polyaromatic hydrocarbon oxides, containing the polyaromatic hydrocarbon oxides having a molecular weight of 300 to 1000 in a content of 60% by weight or more, and the graphite or the derivative thereof is formed into a graphene flake having a thickness in nanoscale under application of a physical force.
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