| 摘要 |
A hydrogen-occlusion electrode and a method of manufacturing thereof are described. The hydrogen-occlusion electrode comprises a hydrogen-occlusion alloy accounting for 42-84 vol.%, a bonding material PVdF for 3-13 vol.%, an electroconductive material for 3-15 vol.% and residual pores for 10-30 vo.%, and an average particle size of the electroconductive material is 1.3 mu m or less, and the bonding material in the electrode is heat-treated. The hydrogen-occlusion electrode provides improved battery performance characteristics including charge-discharge cycle, discharge characteristics, and so on. In manufacturing the foregoing hydrogen-occlusion electrode, a formed electrode plate body including PVdF as a bonding material is manufactured, and is thereafter heat-treated in a vacuum or inert gas atmosphere at a temperature ranging from about 160 to about 200 DEG C, so that there is obtained an electrode preventing the alloy particles from falling off therefrom, result- in an improvement of the mechanical strength and electro-conductivity thereof. When a hydrogen-occlusion electrode includes a thickener amounting to 0.5 wt.% or less based on the weight of the hydrogen-occlusion alloy, there is resulted in an improvement of the cahrge-discharge characteristics and the internal pressure of the battery. <IMAGE> |
