| 发明名称 |
Gas diffusion electrode material, process for producing the same, and process for producing gas diffusion electrode |
| 摘要 |
A reaction layer material for a gas diffusion electrode and a production process therefor, which is obtained by mixing a polytetrafluoroethylene dispersion with a surfactant-containing aqueous solution containing hydrophilic fine particles and a hydrophobic carbon black, each dispersed therein satisfying the relationships: 0.5<D<2 and rs<2rp, wherein D=rc/rp, rs represents the average particle diameter of the hydrophilic fine particles dispersed in the surfactant-containing aqueous solution, rc represents the average particle diameter of the hydrophobic carbon black dispersed in the surfactant-containing aqueous solution, and rp represents the average particle diameter of polytetrafluoroethylene fine particles in the polytetrafluoroethylene dispersion to be used; and then adding a self-organizing agent to the mixture and mixing therewith. A jet mill is used for dispersing the hydrophobic carbon black. The liquid obtained by adding and mixing the self-organizing agent is spray-dried or is applied by spraying.
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| 申请公布号 |
US6428722(B1) |
申请公布日期 |
2002.08.06 |
| 申请号 |
US20000600114 |
申请日期 |
2000.07.12 |
| 申请人 |
FURUYA NAGAKAZU;TOAGOSEI CO., LTD.;MITSUI CHEMICALS, INC.;KANEKA CORPORATION |
发明人 |
FURUYA NAGAKAZU |
| 分类号 |
C25B11/03;H01M4/86;H01M4/88;H01M4/90;H01M4/96;H01M8/10;(IPC1-7):H01B1/04;H01B1/12;B05D1/02 |
主分类号 |
C25B11/03 |
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