铅酸蓄电池正极活性物质孔结构衰减过程研究  

Research on decaying process of pore structure of positive active materials for lead-acid batteries

作　　者：邓继东[1] 邓成智 刘玉 李桂发 张锋博 DENG Jidong;DENG Chengzhi;LIU Yu;LI Guifa;ZHANG Fengbo(Shenyang Battery Research Institute,Shenyang Liaoning 110178;Tianneng Battery Group Co.,Ltd.,Changxing Zhejiang 313100,China)

机构地区：[1]沈阳蓄电池研究所,辽宁沈阳110178 [2]天能电池集团股份有限公司,浙江长兴313100

出　　处：《蓄电池》2022年第6期261-264,294,共5页Chinese LABAT Man

摘　　要：通过研究铅酸蓄电池循环过程中正极活性物质的孔径和孔容的变化,发现正极活性物质孔结构衰减过程是孔径0.01~0.1μm、0.1~1μm和1~5μm的孔不断增大,最终变为孔径5~30μm孔的过程,延缓正极活性物质孔径的增大,是延长电池使用寿命的基础。In this paper,the changes in the pore size and pore volume of the positive active materials in the cycle process of lead-acid battery are studied.it is found that the pore structure decaying process of the positive active mass is the increasing process of the pores with pore size of 0.01~0.1μm,0.1~1μm and 1~5μm,andfinally the smaller pores become bigger pores with the pore size of 5~30μm.Postponing the increase of the pore size of the positive active mass is the basis for prolonging the service life of lead-acid battery.

关 键 词：铅酸蓄电池 正极活性物质 孔结构 孔径 孔容 孔体积占有率 

分 类 号：TM912.1[电气工程—电力电子与电力传动]