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Aqueous Lithium‐ion Battery LiTi~2~(PO~4~)~3~/LiMn~2~O~4~ with High Power and Energy Densities as well as Superior Cycling Stability\*\* by J.-Y. Luo; Y.-Y. Xia is a Engineering article available to read on EtoBox.

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## Abstract Porous, highly crystalline Nasicon‐type phase LiTi~2~(PO~4~)~3~ has been prepared by a novel poly(vinyl alcohol)‐assisted sol–gel route and coated by a uniform and continuous nanometers‐thick carbon thin film using chemical vapor deposition technology. The as‐prepared LiTi~2~(PO~4~)~3~ exhibits excellent electrochemical performance both in organic and aqueous electrolytes, and especially shows good cycling stability in aqueous electrolytes. An aqueous lithium‐ion battery consisting of a combination of LiMn~2~O~4~ cathode, LiTi~2~(PO~4~)~3~ anode, and a 1 M Li~2~SO~4~ electrolyte has been constructed. The cell delivers a capacity of 40 mA h g^–1^ and a specific energy of 60 W h kg^–1^ with an output voltage of 1.5 V based on the total weight of the active electrode materials. It also exhibits an excellent cycling stability with a capacity retention of 82 % over 200 charge/discharge cycles, which is much better than any aqueous lithium‐ion battery reported.

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Author

J.-Y. Luo; Y.-Y. Xia

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1616-301X)

Published

2007

Language

EN

Field

Engineering (Physical Sciences)