Advances in direct repair of cathode materials from retired lithium iron phosphate battery and ternary lithium battery
The rapid development of the lithium battery industry and the new energy storage demand for lithium-ion batteries have drawn much attention in the resource and environmental field.Therefore,the recycling of retired lithium-ion batteries is necessary in the current industrial system.The cathode materials are the most valuable part of lithium-ion batteries,while the direct repair of waste cathode electrode materials is still in its early stages compared to the hydrometallurgy and pyrometallurgy methods.The prospect of a direct repair method is better than traditional methods due to its low cost and green environmental protection.This review introduced two major batteries,including lithium iron phosphate battery and ternary lithium battery,as well as the reason for the cathode materials failure of these two batteries.Meanwhile,several direct repair methods for the cathode materials of these two retired batteries and the problems existing in different direct repair methods were reviewed.Some relevant suggestions were also proposed to promote development of direct repair in the lithium battery industry.
国家科技期刊平台
NSTL
万方数据
