Li-water battery with oxygen dissolved in water as a cathode
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- Li-water battery with oxygen dissolved in water as a cathode
- Kim, Jae-Kwang; Yang, Wei; Salim, Jason; Ma, Chao; Sun, Chunwen; Li, Jianqi; Kim, Youngsik
- Issue Date
- ELECTROCHEMICAL SOC INC
- JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.161, no.3, pp.A285 - A289
- In this work, we demonstrate a lithium-water battery that uses oxygen dissolved in water as a cathode, Sr05Cea05CoO3-8 (SCCO)-copper nanoparticles as an efficient bifunctional catalyst, and with hybrid electrolytes. The SCCO-Cu composite catalyst exhibits an efficient and stable bifunctional catalytic activity, especially for the OER. The round-trip efficiency of the cell with SCCO-Cu nanoparticles catalyst reaches 84.1%, close to that of the 50% Pt/carbon-black catalyst (87.2%). The improved performance of the SCCO-Cu catalyst can be ascribed to the synergetic effect of SCCO and copper. The preliminary results demonstrate that the rechargeable lithium-water battery with oxygen dissolved in water flow can be achieved with high efficient and low cost oxide catalyst. This can be a good candidate for a large stationary energy storage system (ESS) with a low-cost.
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