Engineering conductive and catalytic triple-phase interfaces for high efficiency polysulfides conversion in Li-S batteries

Wei, Benben1; Tu, Yang1; Xia, Yu1,3; Theis, Wolfgang3; Zhang, Junxian1; Xu, Zian1,4; Chen, Shaoqing1,5; Chen, Jian1; Yin, Guoxin1; Wang, Hsing-Lin1,2

2023-10-01

10.1016/j.cej.2023.144887

CHEMICAL ENGINEERING JOURNAL   影响因子和分区

1385-8947

1873-3212

The well-known shuttle effect of lithium polysulfides (LiPSs) in the ether-based liquid electrolyte and polymer solid electrolytes are the main roadblocks of Li-S batteries to perform high discharge capacity with a long cycling lifespan. Herein, a triple phase interface among carbon/catalysts (vanadium single atoms (VSAs) and metallic cobalt nanoparticles (CoNPs))/electrolyte is proposed for the high-performance Li-S batteries. At the triple-phase interfaces, the LiPSs are chemically immobilized and electrocatalytically transformed into insoluble Li2S at the rate-determining process of liquid-solid conversion. The nucleation and growth of Li2S precipitates were dominated by the interface chemistry and the dispersion of catalysts (3D reconstruction image). In the Li-S batteries with liquid ether-based electrolytes, a discharge capacity of 1343 mAh g-1 was achieved at 0.1 C and the decay of capacity was decelerated with 0.05% per cycle for 500 cycles at 1 C, as well as superb rate capability (808 mAh & BULL;g � 1 at 5 C). The triple phase interfaces also exhibited high performance in solid state Li-S batteries with solid polymer electrolytes, which the discharge capacity reaches 1289 mAh & BULL;g � 1 at 0.05 C and 849 mAh & BULL;g � 1 at 0.5 C.

Li -S batteries Solid state batteries Catalysts Vanadium single atoms Cobalt nanoparticles

SCI ; EI

英语

第一 ; 通讯

Leading talents of Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[ZDSYS20180208184346531] ; Shenzhen Key Laboratory of Solid State Batteries["2016LJ06N507","CYJ20170817110652558"] ; null[2018B030322001]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:001055997100001

ELSEVIER SCIENCE SA

20233314566803

Electrocatalysis ; Ethers ; Lithium compounds ; Nanoparticles ; Phase interfaces ; Polyelectrolytes ; Polysulfides ; Solid electrolytes ; Solid-State Batteries ; Vanadium

Vanadium and Alloys:543.6 ; Secondary Batteries:702.1.2 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Organic Polymers:815.1.1 ; Polymer Products:817.1 ; Synthetic Rubber:818.2.1 ; Solid State Physics:933

ENGINEERING

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Key Univ Lab Highly Efficient Utilizat Solar Energ, Shenzhen 518055, Guangdong, Peoples R China
3.Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, England
4.Univ Macau, Inst Appl Phys & Mat Engn, Joint Key Lab, Minist Educ, Macau 999078, Peoples R China
5.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Innovat Ctr Chem Sci, Suzhou 215123, Peoples R China

Wei, Benben,Tu, Yang,Xia, Yu,et al. Engineering conductive and catalytic triple-phase interfaces for high efficiency polysulfides conversion in Li-S batteries[J]. CHEMICAL ENGINEERING JOURNAL,2023,473.

Wei, Benben.,Tu, Yang.,Xia, Yu.,Theis, Wolfgang.,Zhang, Junxian.,...&Wang, Hsing-Lin.(2023).Engineering conductive and catalytic triple-phase interfaces for high efficiency polysulfides conversion in Li-S batteries.CHEMICAL ENGINEERING JOURNAL,473.

Wei, Benben,et al."Engineering conductive and catalytic triple-phase interfaces for high efficiency polysulfides conversion in Li-S batteries".CHEMICAL ENGINEERING JOURNAL 473(2023).