4.8 Article

Modification of LixNi1-yCoyO2 by applying a surface coating of MgO

Journal

JOURNAL OF POWER SOURCES
Volume 88, Issue 2, Pages 255-261

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/S0378-7753(00)00368-2

Keywords

lithium ion battery; cathode material; coating; crystallization; MgO; LiNiO2

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Mg(OH)(2) is coated on the surface of semi-crystalline LixNi1-yCoyO2. By further heating the coated sample, the surface is modified. This lowers the initial discharge capacity and improves the cycle-reversibility of a test lithium-ion cell, which was made with surface-modified LixNi1-yCoyO2 as the cathode material. (C) 2000 Elsevier Science S.A. All rights reserved.

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