化成初期电流对免维护电池正极板组分的影响  

Effect of initial formation current on composition of positive plate of maintenance-free battery

作　　者：孙海涛 陈二霞 闫娜 霍玉龙 王再红 高鹤 陈志雪 SUN Haitao;CHEN Erxia;YAN Na;HUO YuLong;WANG Zaihong;GAO He;CHEN Zhixue(Fengfan Co.,Ltd.,Baoding Hebei 071057,China)

机构地区：[1]风帆有限责任公司,河北保定071057

出　　处：《蓄电池》2021年第4期167-172,共6页Chinese LABAT Man

摘　　要：通过XRD、SEM,考察了免维护铅酸蓄电池制造过程中化成初期电流对正极板组分产生的影响。初期电流的大小会影响正极板不同部位PbO_(2)总含量和α-PbO_(2)含量,特别是在中心位置α-PbO_(2)含量相对较高,同时会导致微观上部分PbO_(2)晶体形貌改变。随着电池化成初期电流的增大,ω(α-PbO_(2))/ω(β-PbO_(2))的比值呈现先增大后减小的趋势,且在初期电流为20 A时α-PbO_(2)含量最大。By XRD and SEM,the influence of initial forming current on the composition of positive plate in the manufacturing process of maintainance-free lead-acid battery was investigated.The initial current will affect the total PbO_(2)content andα-PbO_(2)content in different parts of the positive plate,especially theα-PbO_(2)content is relatively high in the center position,and it will also lead to the change of the morphology of some PbO_(2)crystals.With the increase of initial current,the ratio ofω(α-PbO_(2))/ω(β-PbO_(2))increases first and then decreases,and the content ofα-PbO_(2)is the highest when the initial current is 20 A.

关 键 词：铅酸蓄电池 化成电流 正极板 PbO_(2) 活性物质 α-PbO_(2) β-PbO_(2) 

分 类 号：TM912.1[电气工程—电力电子与电力传动]