Synthesis and characterization of li-rich cathode material for lithium ion batteries

被引：24

作者：

Cetin, Busra ^{[1
]}

Camtakan, Zeyneb ^{[2
]}

Yuca, Neslihan ^{[1
,3
]}

机构：

[1] Enwair Energy Technol Corp, Istanbul, Turkey

[2] Istanbul Tech Univ, Energy Inst, Istanbul, Turkey

[3] Maltepe Univ, Elect Elect Engn Dept, Istanbul, Turkey

来源：

MATERIALS LETTERS | 2020年 / 273卷

关键词：

Li-rich cathodes; High voltage cathodes; Cathode stoichiometry; ELECTROCHEMICAL PROPERTIES; PERFORMANCE; ELECTRODES; PROGRESS;

D O I：

10.1016/j.matlet.2020.127927

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lithium rich (Li-rich) transition metal oxide cathodes are considered to be among the most promising intercalation cathode materials used for lithium-ion batteries (LIBs) with their high energy density above 900 Wh/kg. Li1.252Mn0.557Ni0.123Co0.126Al0.0142O2 layered Li-rich nickel manganese cobalt (NMC) cathode material was synthesized by sol-gel method. This study aims to reveal the superiority of Li-rich cathode material over existing commercial cathodes. The stoichiometric ratio of Li-rich cathode material was confirmed by Inductively Coupled Plasma Mass Spectroscopy (ICP-MS), portable X-ray Fluorescence (pXRF) and Instrumented Neutron Activation Analysis (INAA). Structural and morphological characterization of Li-rich NMC material was examined with X-ray diffraction (XRD) and Scanning Electron Microscopy-Emission with Energy Dispersive Spectroscopy (SEM-EDS). Electrochemical performances of Li-rich NMC and commercial NMC111 cathode materials in coin cell at C/10, C/5 and 1C were investigated. The discharge capacity of Li-rich NMC and NMC111 was found to be 160, 156, 96 mAhg (1) and 153, 120, 72 mAhg (1) at C/10, C/5, 1C, respectively. (C) 2020 Published by Elsevier B.V.

引用

页数：4

共 17 条

[1] Optimized Temperature Effect of Li-Ion Diffusion with Layer Distance in Li(NixMnyCoz)O2 Cathode Materials for High Performance Li-Ion Battery [J].