一个新奇方法被用于金属氢化物(MH ) 的表面修正 MH/Ni 电池的电极。电极的双方是有一部薄银电影的 plated 用真空蒸发 plating 技术厚的大约 0.1 μ m,和 MH/Ni 电池的表演上的电极的效果被检验。表面修正能提高电极传导性和减少,这被发现电池 ohimic 电阻。在表面修正以后,在 5C (7.5A ) 的分泌物电容被 212 妈· h 增加,分泌物电压被 0.11 V 增加,电池的电阻被 32%.The 电池也与修改电极展览减少令人满意的耐久性。修改电池的留下的能力甚至在 500 个周期以后是 89% 起始的能力。电池的内部压力在超载期间被降低,电池的给料效率被改进。
A novel method was applied to the surface modification of the metal hydride(MH) electrode of MH/Ni batteries. Both sides of the electrode were plated with a thin silver film about 0.1μm thick using vacuum evaporation plating technology, and the effect of the electrode on the performance of MH/Ni batteries was examined. It is found that the surface modification can enhance the electrode conductivity and decrease the battery ohimic resistance. After surface modification, the discharge capacity at 5C (7.5A) is increased by 212 mA·h and the discharge voltage is increased by 0.11 V, the resistance of the batteries is also decreased by 32%. The batteries with modified electrode exhibit satisfactory durability. The remaining capacity of the modified batteries is 89% of the initial capacity even after 500 cycles. The inner pressure of the batteries during overcharging is lowered and the charging efficiency of the batteries is improved.