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Layered Li 1.3 Mn 0.58 Ni 0.12 Co 0.11 O 2+ δ Cathode Material for Lithium‐Ion Batteries with High Reversible Capacity
Author(s) -
Deng YaPing,
Fu Fang,
Wu ZhenGuo,
Zhang Tao,
Yin ZuWei,
Zhang ShaoJian,
Li JunTao,
Huang Ling,
Sun ShiGang
Publication year - 2016
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201600280
Subject(s) - raman spectroscopy , electrochemistry , materials science , cathode , lithium (medication) , ion , analytical chemistry (journal) , oxygen , diffraction , inorganic chemistry , chemistry , electrode , medicine , physics , organic chemistry , chromatography , optics , endocrinology
Layered Li 1.3 Mn 0.58 Ni 0.12 Co 0.11 O 2+ δ , a solid solution of 0.53 Li 2 MnO 3 ⋅0.47 LiMn 0.4 Ni 0.3 Co 0.3 O 2 , has been successfully synthesized by using an improved solvothermal strategy and used as the cathode material of a Li‐ion battery. The pure phase of the layered structure is characterized by using X‐ray diffraction and Raman spectroscopy. Electrochemical tests demonstrate that as‐synthesized layered Li 1.3 Mn 0.58 Ni 0.12 Co 0.11 O 2+ δ exhibits high discharge capacities of 349.4, 322.4, 304.6, and 291.7 mAh g −1 at 0.1, 0.2, 0.5, and 1 C rates, respectively. Such high reversible capacities could be ascribed to the enrichment of oxygen in the materials, which was evidenced clearly by a potential plateau below 3.0 V in the discharge process and originated form the electrochemical oxygen reduction.