In this paper, the possible reasons for Cd-Ni secondary battery to be out of work were discussed，and the nonserviceable Cd-Ni secondary batteries were successfully restored.
Maintenance includes painting, replacing damaged doors, frames and other components, window frames, sashes and casings, replacement of nonserviceable hardware and re-glazing where necessary.
了镉镍二次电池
的原因,并报道了修
、
损坏的门、框架和其
组件、窗框、窗扇和外
、
