Surface Treatment of Li(Li0.08Ni0.34Co0.08Mn0.5)O2 Oxide for High Voltage Lithium Ion Battery

The high capacity cathode materials with charge voltage above 4.5 V are widely being developed. To reduce surface reactivity at high voltage, Al2O3 and pullulan are used for coating on the Li(Li0.08Ni0.34Co0.08Mn0.5)O2 surface and are characterized by electrochemical analysis. Charge/discharge and e...

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Bibliographic Details
Published in:Journal of the Chinese Chemical Society (Taipei) 2012-10, Vol.59 (10), p.1264-1269
Main Authors: Wu, Hsin-Gen, Chandan, Prem, Chang, Hua-Shu, Chiu, Chui-Chang, Sheu, Hwo-Shuenn, Tang, Horng-Yi
Format: Article
Language:English
Subjects:
High voltage
Lithium ion battery
Pullulan
Online Access:Get full text
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Summary:The high capacity cathode materials with charge voltage above 4.5 V are widely being developed. To reduce surface reactivity at high voltage, Al2O3 and pullulan are used for coating on the Li(Li0.08Ni0.34Co0.08Mn0.5)O2 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. Al2O3 and pullulan coatings on the Li(Li0.08Ni0.34Co0.08Mn0.5)O2 oxide surface are applied and characterized by electrochemical analysis. Charge/discharge and electrochemical results display the organic coating sustained in high voltage cycles. Ionic conductivity of surface coating plays a key role for battery performance.
ISSN:0009-4536
2192-6549
DOI:10.1002/jccs.201200215