源于钛基铅酸电池的再生钛基体作为板栅集电体的研究OA北大核心CSTPCD

The energy density of titanium-based lead-acid batteries can be remarkably enhanced,thereby greatly resolving the problem of the easy corrosion and softening of the positive plates that are typically observed in traditional lead-acid batteries.This also demonstrates significant commercialization potential.However,when compared with the mature recycling process of traditional lead-acid batteries and the utilization of recycled lead,the recycling method of titanium-based lead-acid batteries and the application of recycled materials become the key factors for the future application and development of these batteries.In this paper,recycled titanium-based positive and negative electrode grids derived from titanium-based lead-acid batteries were prepared.The positive electrode grid was composed of recycled titanium matrix/tin-antimony intermediate layer/lead,and the negative electrode grid was composed of recycled titanium matrix/copper/lead.The possibility of recycling applications was discussed by studying the electrochemical properties of recycled titanium matrix derived from titanium-based lead-acid batteries for grid current collectors.The results show that the discharge specific capacity of the active material based on the recycled titanium-based positive plate is 72.4 mA·h/g,and the cycle life of the corresponding battery at 0.5C100%DoD(depth of discharge)is 180 times.The discharge specific capacity of the active material based on the recycled titanium-based negative plate is 98 mA·h/g,and the corresponding battery has a cycle life of 332 times at 0.5C100%DoD.The performance of the grid and battery prepared with the recycled titanium matrix is the same as that of the pure titanium matrix.This finding provides a solid experimental basis for the recycling of the recycled titanium grid in titanium-based lead-acid batteries.