發(fā)布時間：2018-05-21 02:22

  本文選題：還原-堿溶 + 回收�。� 參考：《電源技術》2016年11期

【摘要】：氫鎳電池包含大量的鎳、鈷和稀土等有價金屬元素,氫鎳電池材料的回收對于降低生產(chǎn)成本、減少環(huán)境污染具有重要意義。用還原-堿溶法處理廢舊電池正極,可以在實現(xiàn)鈷的分離的同時得到Ni(OH)_2正極材料。采用還原-堿溶法,研究了在不同堿濃度下回收的Ni(OH)_2正極材料的電化學性質(zhì)。結果表明,低濃度堿溶液時,回收正極材料的初始放電比容量為97.5 m Ah/g,第5次循環(huán)后比容量為199.1 m Ah/g,80次循環(huán)后比容量為263.3 m Ah/g;但在高濃度堿溶液時,伴隨著鈷的溶出,回收材料的電化學性能下降。
[Abstract]:Nickel hydride batteries contain a large number of valuable metal elements such as nickel cobalt and rare earths. The recovery of nickel hydrogen batteries is of great significance in reducing the production cost and environmental pollution. The cathode material of Ni(OH)_2 can be obtained by treating the cathode of waste battery by reduction-alkali solution method while the separation of cobalt can be realized at the same time. The electrochemical properties of Ni(OH)_2 cathode materials recovered at different alkali concentrations were studied by reduction-alkali dissolution method. The results show that the initial discharge specific capacity of the recovered cathode material is 97.5 m / g when alkali solution is low, the specific capacity is 199.1 m / g after the fifth cycle, the specific capacity is 263.3 m / g after 80 cycles, but in the high concentration alkali solution, cobalt dissolves. The electrochemical properties of the recovered materials decreased.
【作者單位】： 上海應用技術學院化學與環(huán)境工程學院;
【基金】：中國博士后基金(2011M500840) 江蘇省博士后科研資助計劃(1101009C) 上海應用技術學院引進人才科研啟動基金(YJ2014-20) 上海市高校青年教師培養(yǎng)計劃(ZZyy15088)
【分類號】：X705;TM912;TF80
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本文編號：1917315