Dawson-type polyoxometalate modified separator for anchoring/catalyzing polysulfides in high-performance lithium-sulfur batteries

被引：18
作者：
Zhang, Hangyu [1 ]
Ma, Zhiyuan [1 ]
Duan, Suqin [1 ]
Liu, Yi [1 ]
Jiang, Xinyuan [1 ]
Zhou, Qiuping [1 ]
Chen, Ming [1 ]
Ni, Lubin [1 ]
Diao, Guowang [1 ]
机构：
[1] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2022年 / 428卷
基金：
中国国家自然科学基金;
关键词：
Lithium -sulfur batteries; Shuttle effect; Dawson -type polyoxometalate; Modified separator; Electrospinning; METAL-ORGANIC FRAMEWORKS; LI-S BATTERIES; WATER OXIDATION; MEMBRANE SEPARATOR; CATHODE MATERIAL; CARBON; ELECTRODE; NANOFIBERS; COMPOSITE; ELECTROCATALYSTS;
D O I：
10.1016/j.electacta.2022.140868
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Considering ultrahigh energy density as well as the cost-effectiveness of lithium-sulfur batteries (Li-S, LSBs), it is considered the most outstanding battery. However, the shuttling behavior and sluggish conversion of poly -sulfides (LiPSs), and the dendrite formation seriously impede the practical applications of LSBs. The modified separator is an effective method to solve the above problems. Herein, we propose a Dawson-type poly-oxometalate (K6P2W18O62, P2W18) modified polypropylene membrane (P2W18/PVDF/PP) with multiple func-tions for inhibiting the diffusion of LiPSs, promoting the redox kinetics of LiPSs conversion, avoiding the dendrite formation, and promoting Li+ rapid transfer. Based on spectroscopic techniques as well as electrochemical dates, it was confirmed that P2W18 can effectively adsorb LiPSs and accelerate LiPSs conversion kinetics to improve the electrochemical performance of LSBs. As a result, LSBs with P2W18/PVDF/PP separator show an initial specific capacity of 724 mAh g-1 at 3.0 C with excellent cycling stability over 400 cycles. The result offers a new perspective for exploring the role of Dawson-type polyoxometalate in extending cycling life and increasing specific capacity in LSBs.
引用
收藏
页数：9
相关论文
共 97 条
[21]   Co/Co3O4-embedded N-doped hollow carbon composite derived from a bimetallic MOF/ZnO Core-shell template as a sulfur host for Li-S batteries [J].
Jeon, Youngmoo ;
Lee, Jeongyeon ;
Jo, Hakrae ;
Hong, Hwichan ;
Lee, Lawrence Yoon Suk ;
Piao, Yuanzhe .
CHEMICAL ENGINEERING JOURNAL, 2021, 407
[22]   Polyoxometalate-functionalized nanocarbon materials for energy conversion, energy storage and sensor systems [J].
Ji, Yuanchun ;
Huang, Lujiang ;
Hu, Jun ;
Streb, Carsten ;
Song, Yu-Fei .
ENERGY & ENVIRONMENTAL SCIENCE, 2015, 8 (03) :776-789
[23]  
Kamata K, 2010, NAT CHEM, V2, P478, DOI [10.1038/nchem.648, 10.1038/NCHEM.648]
[24]   Electrospun Polymer Nanofibers with TiO2@NiCo-LDH as Efficient Polysulfide Barriers for Wide-Temperature-Range Li-S Batteries [J].
Lan, FuYin ;
Zhang, HaiYan ;
Fan, Jinchen ;
Xu, Qunjie ;
Li, Hexing ;
Min, YuLin .
ACS APPLIED MATERIALS & INTERFACES, 2021, 13 (02) :2734-2744
[25]   Multi-Heteroatom-Doped Hollow Carbon Attached on Graphene Using LiFePO4 Nanoparticles as Hard Templates for High-Performance Lithium-Sulfur Batteries [J].
Lee, Jeongyeon ;
Oh, Jiseop ;
Jeon, Youngmoo ;
Piao, Yuanzhe .
ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (31) :26485-26493
[26]   Single-dispersed polyoxometalate clusters embedded on multilayer graphene as a bifunctional electrocatalyst for efficient Li-S batteries [J].
Lei, Jie ;
Fan, Xiao-Xiang ;
Liu, Ting ;
Xu, Pan ;
Hou, Qing ;
Li, Ke ;
Yuan, Ru-Ming ;
Zheng, Ming-Sen ;
Dong, Quan-Feng ;
Chen, Jia-Jia .
NATURE COMMUNICATIONS, 2022, 13 (01)
[27]   Porphyrin Organic Framework Hollow Spheres and Their Applications in Lithium-Sulfur Batteries [J].
Li, Bo-Quan ;
Zhang, Shu-Yuan ;
Kong, Long ;
Peng, Hong-Jie ;
Zhang, Qiang .
ADVANCED MATERIALS, 2018, 30 (23)
[28]   Rational Method for Improving the Performance of Lithium-Sulfur Batteries: Coating the Separator with Lithium Fluoride [J].
Li, Chao ;
Zhang, Peng ;
Dai, Jianhui ;
Shen, Xiu ;
Peng, Yueying ;
Zhang, Yiyong ;
Zhao, Jinbao .
CHEMELECTROCHEM, 2017, 4 (06) :1535-1543
[29]   Free-standing sulfur-polypyrrole cathode in conjunction with polypyrrole-coated separator for flexible Li-S batteries [J].
Li, Fang ;
Kaiser, Mohammad Rejaul ;
Ma, Jianmin ;
Guo, Zaiping ;
Liu, Huakun ;
Wang, Jiazhao .
ENERGY STORAGE MATERIALS, 2018, 13 :312-322
[30]   Coupled molybdenum carbide and reduced graphene oxide electrocatalysts for efficient hydrogen evolution [J].
Li, Ji-Sen ;
Wang, Yu ;
Liu, Chun-Hui ;
Li, Shun-Li ;
Wang, Yu-Guang ;
Dong, Long-Zhang ;
Dai, Zhi-Hui ;
Li, Ya-Fei ;
Lan, Ya-Qian .
NATURE COMMUNICATIONS, 2016, 7
12345678910