电源技术2017，Vol.41Issue(9)：1248-1250,1274,4.
富锂材料Li1.2(Ni0.4Mn0.4)x(Ni0.2Mn0.6)1-xO2(O≤x≤1)的制备及性能研究
Synthesis and characterization of lithium-rich Li1.2(Ni0.4Mn0.4)x(Ni0.2Mn0.6)1-xO2(0 ≤ x≤ 1)
彭庆文 1刘兴江1
作者信息
- 1. 中国电子科技集团公司第十八研究所化学与物理电源重点实验室,天津300384
- 折叠
摘要
Abstract
Lithium-rich layered cathode material had drawn much attention due to its extraordinarily high capacity.Lithium-rich material was designed according to phase diagram.Lithium-rich layered cathode material Li1.2(Ni0.4Mn0.4)x(Ni0.2Mn0.6)1-xO2(0≤ x≤ 1) was prepared by acetate combustion method.The Li,Ni,Co and Mn contents in the samples were determined by atomic absorption spectrum (AAS) and inductive coupled plasma optical emission spectrometry (ICP-OES).X-ray diffraction (XRD) and scanning electron microscopy (SEM) were carried out to analyze the structure and morphology of Li1.2(Ni0.4Mn0.4)x(Ni0.2Mn0.6)1-xO2(0 ≤x≤ 1).The electrochemical properties of the samples were also studied.The research results show that all the five lithium-rich layered materials are α-NaFeO2 structure.The charge-discharge tests of Li1.2 (Ni0.4Mn0.4)x (Ni0.2Mn0.6)1-xO2 (0 ≤ x≤ 1) show that the first discharge capacity and the cycleability are improved with the value of x decreasing.关键词
锂离子电池/富锂材料/Li1.2(Ni0.4Mn0.4)x(Ni0.2Mn0.6)1-xO2Key words
lithium-ion battery/lithium-rich materials/Li1.2(Ni0.4Mn0.4)x(Ni0.2Mn0.6)1-xO2分类
信息技术与安全科学引用本文复制引用
彭庆文,刘兴江..富锂材料Li1.2(Ni0.4Mn0.4)x(Ni0.2Mn0.6)1-xO2(O≤x≤1)的制备及性能研究[J].电源技术,2017,41(9):1248-1250,1274,4.
