Journal
ELECTROCHIMICA ACTA
Volume 56, Issue 21, Pages 7392-7396Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2011.05.080
Keywords
Lithium-ion batteries; Structurally integrated materials; Hard carbon; Irreversible capacity
Categories
Funding
- National Natural Science Foundation of China [20925312]
- State Key Basic Research Program of PRC [2007CB209703, 2011CB935903]
- Shanghai Science & Technology Committee [09XD1400300, 10JC1401500, 08DZ2270500]
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We reported a new type of rechargeable lithium-ion battery consisting of a structurally integrated 0.4Li(2)MnO(0.3)center dot 0.6LiMnNi(0.4)Co(0.2)O(2) cathode and a hard carbon anode. The drawback of the high irreversible capacity loss of both electrodes, occurring at the first charge/discharge process, can be counterbalanced each other. The battery shows good reversibility with a sloping voltage from 1.5 V to 4.5 V and delivers a capacity of 105 mA h g(-1) and a specific energy of 315 W h kg(-1) based on the total weight of the both active electrode materials. (C) 2011 Elsevier Ltd. All rights reserved.
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