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科学通报  2012 

金属硼化物作为水溶液负极材料的制备与容量输出性能

, PP. 2649-2652

Keywords: 硼化物,多电子反应,高比容量,负极材料

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Abstract:

通过机械球磨法制备了TMB0.5(TM=Co,Mo,V)类过渡金属硼化物.在碱性电解质溶液中,合成的金属硼化物表现出显著的电化学活化行为,其放电容量明显高于单质金属与硼单独放电的容量之和,其中过渡金属实现的放电容量约为其单独放电时的2倍.同时,作为负极应用,该金属硼化物的阳极极化明显降低,与空气电极构成电池后,恒流放电电压平台相对于单质金属提高了100~300mV.表明金属硼化物中过渡金属与硼可以相互活化,从而实现电化学性能的共同显著提高.

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