发明授权
- 专利标题: Method for forming an electrode active layer or sheet
- 专利标题(中): 形成电极活性层或片的方法
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申请号: US202576申请日: 1980-10-31
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公开(公告)号: US4379772A公开(公告)日: 1983-04-12
- 发明人: Frank Solomon , Charles Grun
- 申请人: Frank Solomon , Charles Grun
- 申请人地址: TX Dallas
- 专利权人: Diamond Shamrock Corporation
- 当前专利权人: Diamond Shamrock Corporation
- 当前专利权人地址: TX Dallas
- 主分类号: C25B11/03
- IPC分类号: C25B11/03 ; C25B1/46 ; C25B11/02 ; C25B11/04 ; C25B11/06 ; C25B11/12 ; H01M4/88 ; H01M4/96 ; B29D27/00
摘要:
The present disclosure is directed to an electrode active layer or sheet containing from about 60 to about 85 wt. % active carbon in intimate admixture with 15 to 40 wt. % fibrillated PTFE. This electrode has improved strength and is capable of operation at high current density with resistance to mechanical failure due to blistering of the electrode, and to a process for producing same. The process is characterized by combining a dilute dispersion of smaller polytetrafluoroethylene particles with a suspension of catalyzed or uncatalyzed larger active carbon particles to discontinuously coat active carbon with PTFE; fibrillating same; comminuting said fibrillated PTFE/active carbon mix; and then rolling same into a self-sustaining, coherent sheet form. Alternatively, the sheet form can be provided by deposition of the heat treated polytetrafluoroethylenated active carbon on a filter paper or like medium.
公开/授权文献
- US4896658A Hot water supply system 公开/授权日:1990-01-30