A novel battery scheme:Coupling nanostructured phosphorus anodes with lithium sulfide cathodes  

作　　者：David Sichen Wu Guangmin Zhou Eryang Mao Yongming Sun Bofei Liu Li Wang Jiangyan Wang Feifei Shi Yi Cui 

机构地区：[1]Department of Materials Science and Engineering,Stanford University,Stanford,California 94305,USA [2]Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan 430074,China [3]Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China [4]Stanford Institute for Materials and Energy Sciences,SLAC National Accelerator Laboratory,2575 Sand Hill Road,Menlo Park,California 94025,USA

出　　处：《Nano Research》2020年第5期1383-1388,共6页纳米研究（英文版）

摘　　要：Lithium-ion batteries are approaching their theoretical limit and can no longer keep up with the increasing demands of human society.Lithium-sulfur batteries,with a high theoretical specific energy,are promising candidates for next generation energy storage.However,the use of Li metal in Li-S batteries compromises both safety and performance,enabling dendrite formation and causing fast capacity degradation.Previous studies have probed alternative battery systems to replace the metallic Li in Li-S system,such as a Si/Li2S couple,with limited success in performance.Recently,there is a focus on red P as a favorable anode material to host Li.Here,we establish a novel battery scheme by utilizing a P/C nanocomposite anode and pairing it with a Li2S coated carbon nanofiber cathode.We find that red P anode can be compatible in ether-based electrolyte systems and can be successfully coupled to a Li2S cathode.Our proof of concept full-cell displays remarkable specific capacity,rate and cycling performances.We expect our work will provide a useful alternative system and valuable insight in the quest for next generation energy storage devices.

关 键 词：lithium sulfur batteries red phosphorus lithium sulfide 

分 类 号：TM91[电气工程—电力电子与电力传动]