LiNi1–x–yCoxMnyO2 (x = y = 0.1, 0.2, 0.33) Cathode Materials Prepared Using Mechanical Activation: Structure, State of Ions, and Electrochemical Performance Full article
Journal |
Inorganic Materials
ISSN: 0020-1685 , E-ISSN: 1608-3172 |
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Output data | Year: 2007, Volume: 43, Number: 2, Pages: 185-193 Pages count : 9 DOI: 10.1134/S0020168507020161 | ||||
Tags | Cathode Material; LiNi; Lithium Hydroxide; Increase Nickel Content; Differential Capacity Curve | ||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Foundation for Basic Research | 05-03-32703 |
Abstract:
We have investigated LiNi1 − x − yCoxMnyO2 (x = y = 0.1, 0.2, 0.33) cathode materials synthesized from mechanically activated mixtures of lithium hydroxide and nickel cobalt manganese hydroxide. The materials have a layered structure (sp. gr. R3m ). Their unit-cell volume and the degree of disordering in their structure decrease with decreasing nickel content. According to x-ray photoelectron spectroscopy data, the major states of the transition-metal ions in the surface layer of the materials are Ni2+, Co3+, and Mn4+. With increasing nickel content, the Ni 2p3/2 and Co 2p3/2 binding energies increase, attesting to changes in M-O bond covalence. The highest specific electrochemical capacity, ∼170 mA h/g, is offered by LiNi0.6Co0.2Mn0.2O2. The position of redox peaks in the differential capacity curves of the three materials depends on composition: with increasing nickel content, the peaks shift to lower voltages.
Cite:
Kosova N.V.
, Devyatkina E.T.
, Kaichev V.V.
LiNi1–x–yCoxMnyO2 (x = y = 0.1, 0.2, 0.33) Cathode Materials Prepared Using Mechanical Activation: Structure, State of Ions, and Electrochemical Performance
Inorganic Materials. 2007. V.43. N2. P.185-193. DOI: 10.1134/S0020168507020161 WOS Scopus РИНЦ
LiNi1–x–yCoxMnyO2 (x = y = 0.1, 0.2, 0.33) Cathode Materials Prepared Using Mechanical Activation: Structure, State of Ions, and Electrochemical Performance
Inorganic Materials. 2007. V.43. N2. P.185-193. DOI: 10.1134/S0020168507020161 WOS Scopus РИНЦ
Original:
Косова Н.В.
, Девяткина Е.Т.
, Каичев В.В.
Структура, состояние ионов и электрохимические свойства материалов LiNi1 – x – yCoxMnyO2 (x = y = 0.1, 0.2, 0.33), полученных с применением механической активации
Неорганические материалы. 2007. Т.43. №2. С.227-235. RSCI РИНЦ
Структура, состояние ионов и электрохимические свойства материалов LiNi1 – x – yCoxMnyO2 (x = y = 0.1, 0.2, 0.33), полученных с применением механической активации
Неорганические материалы. 2007. Т.43. №2. С.227-235. RSCI РИНЦ
Dates:
Submitted: | Mar 23, 2006 |
Published print: | Feb 1, 2007 |
Identifiers:
Web of science | WOS:000244848500016 |
Scopus | 2-s2.0-33947116504 |
Elibrary | 13550318 |
Chemical Abstracts | 2007:275024 |
Chemical Abstracts (print) | 148:57963 |
OpenAlex | W2007096200 |