Stabilizing layered superlattice MoSe_(2) anodes by the rational solvation structure design for low-temperature aqueous zinc-ion batteries

作     者：Zeheng Lv Yuanhong Kang Rong Tang Jin Yang Guanhong Chen Yuhan Hu Pengxiang Lin Huiya Yang Qilong Wu Minghao Zhang Fenghua Chen Yueying Peng Yang Yang Jinbao Zhao 

作者机构：State Key Laboratory of Physical Chemistry of Solid SurfacesState-Province Joint Engineering Laboratory of Power Source Technology for New Energy VehicleTan Kah Kee Innovation Laboratory(IKKEM)College of Chemistry and Chemical EngineeringXiamen UniversityXiamenChina School of Resources and Chemical EngineeringSanming UniversitySanmingChina International Center for Young ScientistsCenter for Green Research on Energy and Environmental MaterialsNational Institute for Material ScienceTsukubaIbarakiJapan 

出 版 物：《Electron》 (电子（英文）)

年 卷 期：2023年第1卷第1期

页      面：70-79页

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:22109030,22021001 Fundamental Research Funds for the Central Universities,Grant/Award Number:20720220073 The Key Research and Development Program of Yunnan Province,Grant/Award Number:202103AA080019 Fujian Industrial Technology Development,and Application Plan,Grant/Award Number:2022I0002 

主　　题：intercalation-type anodes p-MoSe_(2)||Zn_(x)NVPF periodically stacked p-MoSe_(2)superlattice solvation sheath ultra-long lifespan 

摘      要：Aqueous zinc-ion batteries(AZIBs)have attracted widespread attention due to their intrinsic merits of low cost and high ***,the poor thermodynamic stability of Zn metal in aqueous electrolytes inevitably cause Zn dendrites growth and interface parasitic side reactions,resulting in unsatisfactory cycling stability and low Zn *** Zn anode with intercalation-type anodes have emerged as a promising alternative strategy to overcome the above issues but the lack of appropriate anode materials is becoming the ***,the interlayer structure of MoSe_(2) anode is preintercalated with long-chain polyvinyl pyrrolidone(PVP),constructing a periodically stacked p-MoSe_(2)superlattice to activate the reversible Zn^(2+) storage performance(203 mAh g^(−1)at 0.2 A g^(−1)).To further improve the stability of the superlattice structure during cycling,the electrolyte is also rationally designed by adding 1,4-Butyrolactone(γ-GBL)additive into 3 M Zn(CF_(3)SO_(3))_(2),in whichγ-GBL replaces the H2O in Zn^(2+) solvation *** preferential solvation ofγ-GBL with Zn^(2+)effectively reduces the water activity and helps to achieve an ultra-long lifespan of 12,000 cycles for p-MoSe_(2).More importantly,the reconstructed solvation structure enables the operation of p-MoSe_(2)||ZnxNVPF(Na3V2(PO4)2O_(2)F)AZIBs at an ultra-low temperature of−40°C,which is expected to promote the practical applications of AZIBs.