基于层析图像的磷酸铁锂电化学性能分析  

Electrochemical performance analysis of lithium iron phosphate based on tomography image

作　　者：刘海燕[1] 皮大能 LIU Hai-yan;PI Da-neng(School of Electro-mechanical and Information Technology,Yiwu Industrial&Commercial College,Yiwu 322000,China;College of Mechatronics and Control Engineering,Hubei Normal University,Huangshi 435002,China)

机构地区：[1]义乌工商职业技术学院机电信息学院,浙江义乌322000 [2]湖北师范大学机电与控制工程学院,湖北黄石435002

出　　处：《化学研究与应用》2021年第7期1354-1359,共6页Chemical Research and Application

基　　金：浙江省教育厅课题【2016】(Y201636873)资助。

摘　　要：为深入研究针磷酸铁锂电化学性能,减少实验过程中的破坏性,提出基于层析图像的磷酸铁锂电化学性能分析方法。通过前期准备的实验原料、试剂、仪器,制备了磷酸铁锂电极与其他材料电极的相同型号的电池,实验中对这两种类型的电池进行一定条件下的充放电测试,测试结果表明,磷酸铁锂电池的可用容量最大值为4.3Ah,存储过程中容量消耗慢;分析两种电池充放电后的纵向层析图得出结论,磷酸铁锂材料在电池电极中能够使电池中密度物质分布均匀,保证电池的容量不发生衰减。且在实验过程中,电化学性能分析所需时间短,不具有破坏性,为后续的研究提供一定的理论参考。In order to study the electrochemical performance of lithium iron phosphate in depth and reduce the destructiveness during the experiment,a method for analyzing the electrochemical performance of lithium iron phosphate based on tomographic images is proposed.Through the experimental raw materials,reagents,and instruments prepared in the early stage,the same type of lithium iron phosphate electrode and other material electrodes were prepared.In the experiment,the two types of batteries were charged and discharged under certain conditions.The test results showed that phosphoric acid The maximum available capacity of the lithium iron battery is 4.3Ah,and the capacity consumption is slow during storage;the longitudinal tomograms of the two batteries after charging and discharging are analyzed to conclude that the lithium iron phosphate material in the battery electrode can make the battery density material distribution Uniformity,to ensure that the capacity of the battery does not decrease.Moreover,in the course of the experiment,the electrochemical performance analysis requires a short time and is not destructive,which provides a certain theoretical reference for subsequent research.

关 键 词：层析图像 磷酸铁锂 电化学性能 

分 类 号：O614.1[理学—无机化学]