高比容量中空纤维镍电极的研究

High specific capacity nickel electrodes with hollow fibrous substrate

用传统工艺方法制备出含有中空纤维的多孔镍基板,基板孔率由72%～76%增加到85%～88%(含骨架).借助电化学浸渍法制得性能良好的含纤维镍正极,其中浸钴电极比容量可达173.7mAh/g、555.8mAh/cm^3和41.7mAh/cm^2.

The porous substrate containing hollow nickel fiber are prepared by a traditional technique method and the substrate porosity increases from 72%-76%to85%-88% including skeleton. The fibrous nickel electrodes are fabricated by the electrochemical impregnation method. The specific capacity of the electrode made from 50% hollow-nickel-fiber substrate with cobalt hydroxide addition achieves 173. 7mAh/g,555. 8mAh/cm3 and 41. 7mAh/cm2.