典型文献
Phase formation and crystallization of LiMnxFe1-xPO4-C olivine material with different Mn2+contents fabricated at lower calcination temperatures
文献摘要：
LiMnxFe1-xPO4-C cathode materials for lithium ion batteries were synthesized via solid-state method using Li2CO3,MnCO3,NH4H2PO4,FePO4 and sucrose as starting raw materials,followed by high-tem-perature reduction-annealing.A series of calcination experiments at different temperatures reveal that Mn2+-containing materials exhibit a lower temperature for olivine phase formation,for example LiMn0.5Fe0.5PO4 olivine phase forms at 275℃,while manganese-free crystalline LiFePO4 generally forms at the required temperature of 350℃.Increasing Mn2+content is found to enhance crystallization degree of LiMnxFe1-xPO4 material prepared at lower calcination temperatures.X-ray photoelectron spectroscopy(XPS)results confirm that Mn valence state(+2)remains unchanged up to～250℃ when calcined in ambient atmosphere.The above-mentioned beneficial effect of manganese on phase formation and crystallization of olivine can be well attributed to the stable nature of Mn2+and its strong propensity to form olivine phases.
文献关键词：
中图分类号：
作者姓名：
Guan-Wei Liu;Xiang-Jun Zhang;Song Gong;Dan-Ping Jiang;Bing-Xue Liu;Rong Yang;Shi-Gang Lu
作者机构：
R&D center for energy storage and vehicle batteries,General Research Institute for Nonferrous Metals,Beijing 100088,China
文献出处：
引用格式：
[1]Guan-Wei Liu;Xiang-Jun Zhang;Song Gong;Dan-Ping Jiang;Bing-Xue Liu;Rong Yang;Shi-Gang Lu-.Phase formation and crystallization of LiMnxFe1-xPO4-C olivine material with different Mn2+contents fabricated at lower calcination temperatures)[J].稀有金属（英文版）,2022(09):3142-3149
A类：
LiMnxFe1,xPO4,Mn2+contents,5PO4,Mn2+content
B类：
Phase,formation,crystallization,olivine,different,fabricated,lower,calcination,temperatures,cathode,materials,lithium,batteries,were,synthesized,via,solid,state,method,using,Li2CO3,MnCO3,NH4H2PO4,sucrose,starting,raw,followed,by,high,reduction,annealing,series,experiments,reveal,that,containing,exhibit,example,LiMn0,5Fe0,forms,while,manganese,free,crystalline,LiFePO4,generally,required,Increasing,is,found,enhance,degree,prepared,ray,photoelectron,spectroscopy,XPS,results,confirm,valence,+2,remains,unchanged,up,when,calcined,ambient,atmosphere,above,mentioned,beneficial,effect,can,well,attributed,stable,nature,Mn2+and,its,strong,propensity,phases
AB值：
0.548578
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