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Surface Treatment of Li(Li 0.08 Ni 0.34 Co 0.08 Mn 0.5 )O 2 Oxide for High Voltage Lithium Ion Battery
Author(s) -
Wu HsinGen,
Chandan Prem,
Chang HuaShu,
Chiu ChuiChang,
Sheu HwoShuenn,
Tang HorngYi
Publication year - 2012
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201200215
Subject(s) - chemistry , electrochemistry , coating , oxide , cathode , voltage , high voltage , analytical chemistry (journal) , conductivity , electrode , inorganic chemistry , chemical engineering , electrical engineering , environmental chemistry , organic chemistry , engineering
The high capacity cathode materials with charge voltage above 4.5 V are widely being developed. To reduce surface reactivity at high voltage, Al 2 O 3 and pullulan are used for coating on the Li(Li 0.08 Ni 0.34 Co 0.08 Mn 0.5 )O 2 surface and are characterized by electrochemical analysis. Charge/discharge and electrochemical results reveal that the organic coating sustains in high voltage cycles. Ionic conductivity of surface coating plays a key role in the battery performance.