公开(公告)号：US4874483A

公开(公告)日：1989-10-17

申请号：US304265

申请日：1989-01-31

申请人： Ataru Wakabayashi ,  Yohichi Umehara ,  Satsuki Morie ,  Ikuro Kuwahara ,  Yoshimi Okada

发明人： Ataru Wakabayashi ,  Yohichi Umehara ,  Satsuki Morie ,  Ikuro Kuwahara ,  Yoshimi Okada

IPC分类号： H01M8/18

CPC分类号： H01M8/188 ,  Y02E60/528

摘要： A redox battery electrolyte is prepared from a chromium and/or iron base raw material containing nickel as impurities by dissolving the raw material in a hydrochloric acid-containing aqueous liquid to form a solution containing chromium ions and/or iron ions and nickel ions, the resulting solution being subjected to a cathodic reduction in the presence of lead ions until the electric potential thereof becomes lower than -0.6 V vs. saturated calomel electrode, thereby to remove the nickel ions therefrom.

摘要翻译： 通过将原料溶解在含盐酸的含水液体中以形成含有铬离子和/或铁离子和镍离子的溶液，由含有镍作为杂质的铬和/或铁基原料制备氧化还原电池电解质， 所得到的溶液在铅离子存在下进行阴极还原，直到其电势相对于饱和甘汞电极低于-0.6V，从而从其中除去镍离子。