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Highly stable cycling of a lead oxide/copper nanocomposite as an anode material in lithium ion batteries

机译:氧化铅/铜纳米复合材料作为锂离子电池负极材料的高度稳定循环

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Nanostructured composites of lead oxide/copper-carbon (PbO/Cu-C) were synthesized through in situ solvothermal synthesis and heat treatment of PbO/Cu with polyvinyl pyrrolidone (PVP) and used as lithium-ion battery anodes. A PbO active particle was embedded in the Cu and PVP-C matrix, accommodating volume changes and maintaining the electronic conductivity of PbO. The composite exhibits a superior electrochemical performance, with a capacity of 420 mA h g(-1) at a current density of 165 mA g(-1), compared with previously reported Pb and PbO composite anodes. The developed anode exhibits >90% capacity retention after 9500 cycles, beginning from the second cycle, at a current density of 5.5 A g(-1).
机译:通过原位溶剂热合成和聚乙烯吡咯烷酮(PVP)热处理PbO / Cu合成了氧化铅/铜碳(PbO / Cu-C)纳米复合材料,并用作锂离子电池阳极。将PbO活性颗粒嵌入Cu和PVP-C基质中,以适应体积变化并保持PbO的电导率。与以前报道的Pb和PbO复合阳极相比,该复合材料表现出优异的电化学性能,在165 mA g(-1)的电流密度下容量为420 mA h g(-1)。从第二个循环开始,在5.5 A g(-1)的电流密度下,经过9500个循环后,已开发的阳极表现出> 90%的容量保持率。

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