From non-carbon host toward carbon-free lithium-sulfur batteries  

作　　者：Yanqi Feng Hui Liu Qiongqiong Lu 

机构地区：[1]School of Materials Science and Engineering,Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials,Shaanxi University of Science and Technology,Xi’an 710021,China [2]Institute of Materials,Henan Key Laboratory of Advanced Conductor Materials,Henan Academy of Sciences,Zhengzhou 450046,China [3]Leibniz Institute for Solid State and Materials Research(IFW)Dresden e.V.,Helmholtzstraβe 20,01069 Dresden,Germany [4]School of Materials&Environment Engineering,Chengdu Technological University,Chengdu 611730,China

出　　处：《Nano Research》2024年第3期1337-1365,共29页纳米研究（英文版）

基　　金：support from the National Natural Science Foundation of China(No.51272147);the Natural Science Foundation of Shaanxi Province(No.2015JM5208);the Graduate Innovation Found of Shaanxi University of Science and Technology.This work was also supported by the National Key R&D Program of China(No.2019YFC1520100);Y.Q.F.acknowledges the financial support from the China Scholarship Council(CSC)and scientific research project of Chengdu Technological University(No.2023RC001);Q.Q.L.acknowledges the financial support by the Startup Research Fund of Henan Academy of Sciences(No.231817001).

摘　　要：Lithium-sulfur(Li-S)batteries with advantages of high energy densities(2600 Wh·kg^(-1)/2800 Wh·L^(-1))and sulfur abundance are regarded as promising candidates for next-generation high-energy batteries.However,the conventional carbon host used in sulfur cathodes suffers from poor chemical adsorption towards Li-polysulfides(LPS)in liquid electrolyte and sluggish redox kinetics,leading to low capacity and rate capability.Besides,carbon host used in Li metal anode with the intrinsic property of poor lithiophilicity and high Li-nucleation barrier gives rise to uncontrollable dendrite growth and further battery failure.Therefore,non-carbon hosts with chemical adsorption toward LPS and catalytic activity for accelerating LPS redox conversion as well as lithiophilic property for guiding uniform Li deposition are proposed and demonstrated a high efficiency in both sulfur cathodes and Li metal anodes.In this review,the principle and challenges of Li-S batteries are first presented,then recent work using non-carbon hosts in Li-S batteries is summarized comprehensively,and the mechanism of non-carbon host in improving sulfur utilization and stabilizing Li metal anode is discussed in detail.Furthermore,remaining challenges and outlook on the implementation of non-carbon host for practical carbon-free Li-S batteries are also provided.

关 键 词：sulfur cathode Li metal anode polysulfides adsorption catalytic effect Li dendrite carbon-free lithium-sulfur batteries 

分 类 号：TM912[电气工程—电力电子与电力传动]