Strategies toward High‐Loading Lithium–Sulfur Battery

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Abstract
Lithium–sulfur (Li–S) batteries, due to the high theoretical energy density, are regarded as one of the most promising candidates for breaking the limitations of energy‐storage system based on Li‐ion batteries. Tremendous efforts have been made to meet the challenge of high‐performance Li–S batteries, in which a sulfur loading of above 5 mg cm−2 delivers an areal capacity higher than 5 mAh cm−2 without compromising specific capacity and cycling stability for practical applications. However, serious problems have been exposed during the scaling up of the sulfur loading. In this review, based on mechanistic insights into structural configuration, catalytic conversion, and interfacial engineering, the problems and corresponding strategies in the development of high‐loading Li–S batteries are highlighted and discussed, aiming at bridging the gap between fundamental research and practical cell‐level designs. Stemming from the current achievements, future directions targeting the high‐energy‐density Li–S batteries for commercialization are proposed.
Funding Information
  • National Natural Science Foundation of China (51722204, 51972041, 51972042)
  • National Basic Research Program of China (2015CB358600)
  • China Postdoctoral Science Foundation (2018M643442)
  • Fundamental Research Funds for the Central Universities (ZYGX2016Z004, ZYGX2018J036)
  • Sichuan Provincial Science and Technology Support Program (2019JDRC0070)
  • Postdoctoral Research Foundation of China (2018M643442)
  • National Basic Research Program of China (2015CB358600)

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