发明授权
- 专利标题: Graphite particles and lithium secondary battery using the same as negative electrode
- 专利标题(中): 石墨颗粒和锂二次电池使用与负极相同
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申请号: US13359660申请日: 2012-01-27
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公开(公告)号: US08580437B2公开(公告)日: 2013-11-12
- 发明人: Yoshito Ishii , Tatsuya Nishida , Atsushi Fujita , Kazuo Yamada
- 申请人: Yoshito Ishii , Tatsuya Nishida , Atsushi Fujita , Kazuo Yamada
- 申请人地址: JP Tokyo
- 专利权人: Hitachi Chemical Company, Ltd.
- 当前专利权人: Hitachi Chemical Company, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Antonelli, Terry, Stout & Kraus, LLP.
- 优先权: JP08-209713 19960808; JP08-264265 19961004; JP08-288109 19961030; JP08-323921 19961204; JP08-348405 19961226; JP08-348406 19961226
- 主分类号: H01M4/13
- IPC分类号: H01M4/13
摘要:
A method for forming a negative electrode for a lithium secondary battery, includes providing a paste comprising graphite particulates comprise assembled or bound graphite particles in each of which a plurality of flat-shaped particles are assembled or bound together so that the planes of orientation are not parallel to one another, and the mixture including 3 to 10 parts by weight of the organic binder per 100 parts by weight of the graphite particulates, a binder and a solvent, coating the paste on a current collector, drying the paste coated on the current collector to form a mixture of the graphite particulates and the binder, and integrating the mixture with the current collector by pressing to provide a density of the mixture of graphite particulates and organic binder of 1.5 to 1.9 g/cm3.
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