Energy Storage Science and Technology ›› 2017, Vol. 6 ›› Issue (2): 169-189.doi: 10.12028/j.issn.2095-4239.2016.0091

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Key materials and technology research progress of lithium-sulfur batteries

CHEN Yuqing1,2, YANG Xiaofei1,2, YU Ying1,2, LI Xianfeng1,3, ZHANG Hongzhang1,3, ZHANG Huamin1,3   

  1. 1Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 2University of Chinese Academy of Sciences, Beijing 100049, China; 3Collaborative Innovation Center of Chemistry for Energy Materials,
    Dalian 116023, Liaoning, China
  • Received:2016-11-21 Revised:2016-12-27 Online:2017-03-01 Published:2017-03-01

Abstract: Lithium-sulfur (Li-S) batteries, with low cost and environmental friendly active materials, have received great attention due to their superior theoretical specific energy of 2600 W•h/kg and 2800 W•h/L. However, many technical problems in both basic materials development and manufacturing technology exploration still exist and severely hinder the industrialization process of Li-S batteries. From the perspective of industrial applications, this review summarizes the current problems and solutions with respect to safety, cycle-lifetime and energy density of Li-S batteries. Lithium metal heterogeneous deposition is proposed to be the main reason of batteries volume expansion. Based on investigation of cost and application requirement, industry-research cooperation and continuously technology innovation are necessary to achieve practical application.

Key words: lithium-sulfur batteries, lithium metal anode, carbon/sulfur composite cathode