源于钛基铅酸电池的再生钛基体作为板栅集电体的研究  

Research on Recycled Titanium Matrix Derived from Titanium-based Lead-acid Batteries as Titanium-based Grid Current Collector

作　　者：刘德波 吴昱澎 许珂大 林海波 LIU Debo;WU Yupeng;XU Keda;LIN Haibo(State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,Changchun 130012,China)

机构地区：[1]吉林大学化学学院,无机合成与制备化学国家重点实验室,长春130012

出　　处：《高等学校化学学报》2024年第7期111-120,共10页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:22279042,21975101)资助.

摘　　要：钛基铅酸电池能够大幅度提高铅酸电池的能量密度,并且解决了传统铅酸电池正极板易腐蚀和软化的问题,商业化潜力巨大.然而,相比于传统铅酸电池成熟的回收工艺和再生铅的利用,钛基铅酸电池的回收方法以及回收材料的应用途径是未来钛基铅酸电池应用和发展的关键.本文制备了源于钛基铅酸电池的再生钛基的正负极板栅,将正极板栅组成为再生钛基体/锡锑中间层/铅,将负极板栅组成为再生钛基体/铜/铅.通过研究源于钛基铅酸电池的再生钛基体用于板栅集电体的电化学性能,讨论了循环应用的可能性.结果表明,基于再生钛基正极板的活性物质放电比容量为72.4mA·h/g,相应电池在0.5C100%DoD(放电深度)下的循环寿命为180次;基于再生钛基负极板的活性物质放电比容量为98mA·h/g,相应电池在0.5C100%DoD下的循环寿命达到332次,用再生钛基体制备的板栅及电池的性能与纯钛基体相同.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.

关 键 词：铅酸电池 再生钛基体 板栅 循环利用 循环寿命 

分 类 号：O646[理学—物理化学]