Abstract
An aqueous rechargeable lithium battery (ARLB) using an electroactive polymer, polypyrrole (PPy), as a negative electrode; a lithium ion intercalation compound LiCoO2 as a positive electrode; and Li2SO4 aqueous solution as an electrolyte and its working mechanism are described. The charge/discharge process is associated with the doping/un-doping of anions at the negative electrode and intercalation/deintercalation of lithium ions at the positive electrode. The average output voltage of the PPy//LiCoO2 battery is about 0.85 V. This battery exhibits excellent cycling performance. This new technology solves the major problem of poor cycling life of ARLBs and will provide a new strategy to explore advanced energy storage and conversion systems.
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Financial support from National Basic Research Program of China (973 Program No: 2007CB209702) and Alexander von Humboldt Foundation (Institutional Program) is greatly appreciated.
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Wang, G.J., Yang, L.C., Qu, Q.T. et al. An aqueous rechargeable lithium battery based on doping and intercalation mechanisms. J Solid State Electrochem 14, 865–869 (2010). https://doi.org/10.1007/s10008-009-0869-3
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DOI: https://doi.org/10.1007/s10008-009-0869-3