NDLI: Cycling performance of LiNi$_{1−y}$M$_{y}$O$_{2}$ (M=Ni, Ga, Al and/or Ti) synthesized by wet milling and solid-state method

Content Provider	SpringerLink
Author	Song, Myoung Youp Mumm, Daniel R. Park, Chan Kee Park, Hye Ryoung
Copyright Year	2012
Abstract	The LiNi$_{1−y}$MyO$_{2}$ specimens with compositions of LiNiO$_{2}$, LiNi$_{0.975}$Ga$_{0.025}$O$_{2}$, LiNi$_{0.975}$Al$_{0.025}$O$_{2}$, LiNi$_{0.995}$Ti$_{0.005}$O$_{2}$, and LiNi$_{0.990}$Al$_{0.005}$Ti$_{0.005}$O$_{2}$ were synthesized by wet milling and a solid-state reaction method. Among all the specimens, LiNi$_{0.990}$Al$_{0.005}$Ti$_{0.005}$O$_{2}$ has the largest first discharge capacity of 196.3 mAh/g at a rate of 0.1 C. At n=50, LiNiO$_{2}$ has the largest discharge capacity of 126.7 mAh/g. LiNiO$_{2}$ has the best cycling performance, its degradation rate of discharge capacity being 0.73 mAh/g/cycle. LiNi$_{0.975}$Al$_{0.025}$O$_{2}$ shows the lowest decrease rate of the first discharge capacity with C rate. An equation describing the variation of the discharge capacity with the number of charge-discharge cycles, n, is obtained. The Williamson-Hall method is applied to calculate the crystallite size and the strain of the samples before and after charge-discharge cycling.
Starting Page	465
Ending Page	472
Page Count	8
File Format	PDF
ISSN	15989623
Journal	Metals and Materials
Volume Number	18
Issue Number	3
e-ISSN	20054149
Language	English
Publisher	The Korean Institute of Metals and Materials
Publisher Date	2012-06-20
Publisher Place	Springer
Access Restriction	Subscribed
Subject Keyword	energy storage materials sintering electrochemistry X-ray diffraction LiNi$_{1−y}$M$_{y}$O$_{2}$ (M=Ni, Ga, Al and/or Ti) Characterization and Evaluation of Materials Engineering Thermodynamics, Heat and Mass Transfer Magnetism, Magnetic Materials Continuum Mechanics and Mechanics of Materials Operating Procedures, Materials Treatment Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Condensed Matter Physics Metals and Alloys Mechanics of Materials

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