首页|Super P and MoO2/MoS2 co-doped gradient nanofiber membrane as multi-functional separator for lithium-sulfur batteries

Super P and MoO2/MoS2 co-doped gradient nanofiber membrane as multi-functional separator for lithium-sulfur batteries

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Lithium-sulfur battery is one of the most promising battery systems for industrialization due to its high theoretical specific capacity and high energy density.Nonetheless,the"shuttle effect"has restrained the advancement of lithium-sulfur batteries.In this work,a gradient-structured nanofiber membrane with pure gelatin on one side and Super P-MoO2/MoS2-gelatin on the other side was created using a multi-step electrostatic spinning technique,which was applied for multi-functional separa-tor for lithium-sulfur batteries.The pure gelatin layer facing the anode side primarily homogenizes the lithium flux,whereas the Super P-MoO2/MoS2-gelatin layer facing the cathode side primarily adsorbs polysulfides by physical and chemical adsorption and enhancing polysulfide conversion efficiency.The findings demonstrate that even after 150 cycles at 0.2C,the lithium-sulfur battery can still sustain a discharge-specific capacity of 572.3 mAh-g-1.When used with Li||Li symmetric batteries,it has a cycle life of more than 1200 h.The commercialization of lithium-sulfur batteries is given a fresh idea by this straightforward preparation technique.

MoO2/MoS2NanofiberMembraneLi-S battery

Xin Liang、Dong-Qing Zhao、Qian-Qian Huang、Sheng Liang、Li-Li Wang、Lei Hu、Ling-Li Liu、Kun-Hong Hu、Chong-Hai Deng、Sheng Cheng、Er-Tao Zhu、Hua-Xia Deng

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School of Energy Materials and Chemical Engineering,LIB Technology Center of Anhui Province,Hefei University,Hefei 230601,China

Instrumental Analysis Centre,Hefei University of Technology,Hefei 230009,China

Hefei Youngy Energy Materials Co.,Ltd.,Hefei 230000,China

Department of Modern Mechanics,University of Science and Technology of China,Hefei 230026,China

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Anhui Provincial Natural Science FoundationAnhui Provincial Natural Science FoundationAnhui Provincial Natural Science FoundationUniversity Synergy Innovation Program of Anhui ProvinceProject for Cultivating Academic(or Disciplinary)LeadersTalent Scientific Research Foundation of Hefei UniversityNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaUniversity Natural Science Research Project of Anhui ProvinceUniversity Natural Science Research Project of Anhui ProvinceUniversity Natural Science Research Project of Anhui ProvinceNatural Science Research Project of Education Department of Anhui ProvinceUniversity excellent talent program of Anhui ProvinceUniversity excellent talent program of Anhui ProvinceTop Discipline Talents Foundation of Anhui Province Educational CommitteeKey Projects of Research and Development Program of Anhui Provence

2208085ME1081708085QE982008085QE27GXXT-2023-024DTR202304323RC292160606551902079KJ2021A10162022AH0517882022AH0517922022AH010096gxyqZD2021136qxyq2021228gxbjZD2021085201904b11020040

2024

10.1007/s12598-024-02732-7

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(9)
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