Enabling fast diffusion/conversion kinetics by thiourea-induced wrinkled N, S co-doped functional MXene for lithium-sulfur battery

被引:48
作者
Feng, Junan [1 ]
Liu, Wendong [1 ]
Shi, Chuan [1 ]
Zhang, Chaoyue [2 ]
Zhao, Xiaoxian [3 ]
Wang, Tianyi [4 ]
Chen, Shuangqiang [5 ]
Li, Qiang [1 ]
Song, Jianjun [1 ]
机构
[1] Qingdao Univ, Coll Phys, Qingdao 266071, Peoples R China
[2] Qingdao Univ, Coll Chem & Chem Engn, Qingdao 266071, Shandong, Peoples R China
[3] Hebei Agr Univ, Coll Sci, Dept Chem, Baoding 071001, Peoples R China
[4] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Peoples R China
[5] Shanghai Univ, Sch Environm & Chem Engn, Dept Chem Engn, Shanghai 200444, Peoples R China
基金
中国国家自然科学基金;
关键词
Lithium-sulfur battery; Diffusion; Conversion; Dual heteroatom doping; MXene; POLYSULFIDES; NITROGEN; DENSITY; DESIGN;
D O I
10.1016/j.ensm.2024.103328
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The long lifespan of high-energy density lithium-sulfur batteries (LSBs) is still hindered by severe polysulfide (PS) shuttling and sluggish sulfur reduction/evolution kinetics process. Herein, we report a facile preparation of thiourea-induced wrinkled nitrogen and sulfur co-doped functionalized MXene (NSMX) to modify the separator to enhance the ion diffusion and conversion kinetics for high-energy LSBs. The combination of theoretical calculations and experimental conclusions demonstrates that the introduction of N, S heteroatoms induces the shift of the d-band center in transition metal Ti towards the Fermi level and results in the robust bonding effect between N/S atoms and Li atom in PS, hence exhibiting admirable adsorption capability to PS and fast catalytic PS reversible conversion rate, which quickly deplete soluble high-order PS and expedites the depletion of the Li2S6 in high potential. The 2D wrinkled polar surface with excellent conductivity assures fast electron transfer and ion migration. Profiting from the enhancement of S utilization and the reduction of unfavorable accumulated Li2S6, the LSBs equipped with NSMX modified separators exhibit a high specific capacity of 1249 mAh g- 1 at 0.2 C. At a high rate of 5 C, the LSBs also delivered an impressive reversible capacity of 600 mAh g- 1. Moreover, a high capacity and stable cycling can be achieved even under the condition of high S load and lean electrolyte consumption.
引用
收藏
页数:10
相关论文
共 59 条
[1]   Boosting Performance of Na-S Batteries Using Sulfur-Doped Ti3C2Tx MXene Nanosheets with a Strong Affinity to Sodium Polysulfides [J].
Bao, Weizhai ;
Shuck, Christopher E. ;
Zhang, Wenxue ;
Guo, Xin ;
Gogotsi, Yury ;
Wang, Guoxiu .
ACS NANO, 2019, 13 (10) :11500-11509
[2]   PROJECTOR AUGMENTED-WAVE METHOD [J].
BLOCHL, PE .
PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979
[3]   Cobalt/MXene-derived TiO2 heterostructure as a functional separator coating to trap polysulfide and accelerate redox kinetics for reliable lithium-sulfur battery [J].
Chang, Zhihua ;
Liu, Wendong ;
Feng, Junan ;
Lin, Zenghui ;
Shi, Chuan ;
Wang, Tianyi ;
Lei, Yaojie ;
Zhao, Xiaoxian ;
Song, Jianjun ;
Wang, Guoxiu .
BATTERIES & SUPERCAPS, 2024, 7 (04)
[4]   More Reliable Lithium-Sulfur Batteries: Status, Solutions and Prospects [J].
Fang, Ruopian ;
Zhao, Shiyong ;
Sun, Zhenhua ;
Wang, Wei ;
Cheng, Hui-Ming ;
Li, Feng .
ADVANCED MATERIALS, 2017, 29 (48)
[5]   High-Performance Electrocatalytic Conversion of N2 to NH3 Using Oxygen-Vacancy-Rich TiO2 In Situ Grown on Ti3C2Tx MXene [J].
Fang, Yanfeng ;
Liu, Zaichun ;
Han, Jingrui ;
Jin, Zhaoyong ;
Han, Yaqian ;
Wang, Faxing ;
Niu, Yusheng ;
Wu, Yuping ;
Xu, Yuanhong .
ADVANCED ENERGY MATERIALS, 2019, 9 (16)
[6]   Design of ZnSe-CoSe heterostructure decorated in hollow N-doped carbon nanocage with generous adsorption and catalysis sites for the reversibly fast kinetics of polysulfide conversion [J].
Feng, Junan ;
Shi, Chuan ;
Dong, Hanghang ;
Zhang, Chaoyue ;
Liu, Wendong ;
Liu, Yu ;
Wang, Tianyi ;
Zhao, Xiaoxian ;
Chen, Shuangqiang ;
Song, Jianjun .
JOURNAL OF ENERGY CHEMISTRY, 2023, 86 :135-145
[7]   Outstanding long-cycling lithium-sulfur batteries by core-shell structure of S@Pt composite with ultrahigh sulfur content [J].
Gao, Mengqin ;
Zhou, Wan-Ying ;
Mo, Yu-Xue ;
Sheng, Tian ;
Deng, Yanhong ;
Chen, Liezun ;
Wang, Kai ;
Tan, Yanliang ;
Zhou, Haiqing .
ADVANCED POWDER MATERIALS, 2022, 1 (01)
[8]   One-Step Hydrothermal Reaction Induced Nitrogen-Doped MoS2/MXene Composites with Superior Lithium-Ion Storage [J].
Gong, Cheng ;
Long, Mengqi ;
Xiao, Jun ;
Li, Jiayi ;
Chen, Jun ;
Xiao, Yang ;
Zhang, Guilai ;
Gao, Hong ;
Liu, Hao .
BATTERIES-BASEL, 2022, 8 (10)
[9]   Cobalt Nanoparticles Loaded on MXene for Li-S Batteries: Anchoring Polysulfides and Accelerating Redox Reactions [J].
Gu, Qinhua ;
Qi, Yujie ;
Chen, Junnan ;
Lu, Ming ;
Zhang, Bingsen .
SMALL, 2022, 18 (41)
[10]   Improved adsorption energetics within density-functional theory using revised Perdew-Burke-Ernzerhof functionals [J].
Hammer, B ;
Hansen, LB ;
Norskov, JK .
PHYSICAL REVIEW B, 1999, 59 (11) :7413-7421