废旧锂片制备含锰锂离子电池正极材料研究  

Study of cathode materials prepared from discarded lithium piece for Mn contained lithium ion batteries

作　　者：陈昱萦 李勇 赵棉 赵婧[1] 张燕[1] 魏斌娟 丁克强[1,2,3] 

机构地区：[1]河北师范大学化学与材料科学学院,河北石家庄050024 [2]风帆股份有限公司,河北保定071057 [3]河北师范大学汇华学院,河北石家庄050091

出　　处：《河北工业科技》2016年第2期115-119,共5页Hebei Journal of Industrial Science and Technology

基　　金：国家自然科学基金(21173066);河北省自然科学基金(B2015205150);河北师范大学应用开发基金(L2010k03)

摘　　要：以废旧锂片为锂源,分别采用水热煅烧和高温煅烧的方法,制备出了含锰锂离子电池正极材料,利用XRD,SEM等技术对样品晶型和形貌进行表征。结果表明,所制备的样品具有较好的晶型。水热煅烧法得到的样品呈棱柱状,高温煅烧法得到的样品呈不规则颗粒状。电化学测试结果表明,水热煅烧法制备的样品具有更高的放电容量。The discarded lithium pieces are adopted as the source of lithium to prepare cathode materials used for Mn-contained lithium ion batteries through hydrothermal process-calcination（HPC）and high temperature calcinations（HTC）,respectively.The crystal structure and morphology of the obtained samples are characterized by XRD and SEM,respectively.The results indicate that all the prepared samples exhibit better crystallinity.The samples prepared by HPC method have a prism structure,and those prepared by HTC method are comprised of irregular spherical particles.Electrochemical measurements results demonstrate that HPC-prepared samples present higher discharge capacity.

关 键 词：电化学 废旧锂片 水热煅烧 高温煅烧 正极材料 锂电池 

分 类 号：O647.2[理学—物理化学]