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Type: Journal article
Title: K ₀⋅₂₅Mn₂O₄ nanofiber microclusters as high power cathode materials for rechargeable lithium batteries
Other Titles: K (0)<NON-ASCII>⋅(8901)<NON-ASCII>(25)Mn(2)O(4) nanofiber microclusters as high power cathode materials for rechargeable lithium batteries
Author: Zhang, C.
Feng, C.
Zhang, P.
Guo, Z.
Chen, Z.
Li, S.
Liu, H.
Citation: RSC Advances: an international journal to further the chemical sciences, 2012; 2(4):1643-1649
Publisher: Royal Society of Chemistry
Issue Date: 2012
ISSN: 2046-2069
Statement of
Chaofeng Zhang, Chuanqi Feng, Peng Zhang, Zaiping Guo, Zhixin Chen, Sean Lid and Huakun Liua
Abstract: K0.25Mn2O4 microclusters assembled from single-crystalline nanofibers were synthesized via a hydrothermal process at different temperatures. The possibility of using these materials as cathode material for lithium ion batteries was studied for the first time. The charge/discharge results showed that the K0.25Mn2O4 nanofiber microclusters synthesized at 120 °C exhibit excellent lithium storage properties, with a high reversible capability (360 mA h g−1 at current density of 100 mA g−1) and stable lithium-ion insertion/de-insertion reversibility. The charge/discharge mechanism in lithium ion batteries was studied and proposed for the first time. During the charge process, K+ was extracted from the electrode, which made active vacated sites suitable for lithium ion intercalation and was beneficial for increasing capacity.
Rights: This journal is © The Royal Society of Chemistry 2012
DOI: 10.1039/c1ra00510c
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Chemistry and Physics publications

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