发明申请
- 专利标题: Recompressed exfoliated graphite articles
- 专利标题(中): 再压缩剥离石墨制品
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申请号: US11899009申请日: 2007-09-04
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公开(公告)号: US20090061191A1公开(公告)日: 2009-03-05
- 发明人: Aruna Zhamu , Jinjun Shi , Jiusheng Guo , Bor Z. Jang
- 申请人: Aruna Zhamu , Jinjun Shi , Jiusheng Guo , Bor Z. Jang
- 主分类号: B32B9/00
- IPC分类号: B32B9/00 ; H01B1/04 ; H01B1/06
摘要:
This invention provides an electrically conductive, less anisotropic, recompressed exfoliated graphite article comprising a mixture of (a) expanded or exfoliated graphite flakes; and (b) particles of non-expandable graphite or carbon, wherein the non-expandable graphite or carbon particles are in the amount of between about 3% and about 70% by weight based on the total weight of the particles and the expanded graphite flakes combined; wherein the mixture is compressed to form the article having an apparent bulk density of from about 0.1 g/cm3 to about 2.0 g/cm3. The article exhibits a thickness-direction conductivity typically greater than 50 S/cm, more typically greater than 100 S/cm, and most typically greater than 200 S/cm. The article, when used in a thin foil or sheet form, can be a useful component in a sheet molding compound plate used as a fuel cell separator or flow field plate. The article may also be used as a current collector for a battery, supercapacitor, or any other electrochemical cell.
公开/授权文献
- US08501307B2 Recompressed exfoliated graphite articles 公开/授权日:2013-08-06
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