A porous puckered V_(2)O_(5) polymorph as new high performance cathode material for aqueous rechargeable zinc batteries

作     者：Dauren Batyrbekuly Barbara Laïk Jean-Pierre Pereira-Ramos Zhumabay Bakenov Rita Baddour-Hadjean Dauren Batyrbekuly;Barbara La(i)k;Jean-Pierre Pereira-Ramos;Zhumabay Bakenov;Rita Baddour-Hadjean

作者机构：Institut de Chimie et des Matériaux Paris Est(ICMPE)UMR 7182 CNRS et UniversitéParis Est Créteil2 rue Henri Dunant94320 ThiaisFrance School of EngineeringNational Laboratory AstanaNazarbayev University53 Kabanbay Batyr AvenueAstana 010000Kazakhstan 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2021年第30卷第10期

页      面：459-468,I0012页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 080501[工学-材料物理与化学] 0827[工学-核科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：the Ministry of Education and Science of Kazakhstan(grant number AP05136016-ZRABS) French Embassy in Astana,Kazakhstan and Campus France for financial support 

主　　题：Vanadium pentoxide γ-V_(2)O_(5) Cathode Aqueous zinc battery High performance Layered structure Energy storage Renewable energy 

摘      要：Aqueous rechargeable zinc batteries are getting increasing attention for large-scale energy storage owing to their advantages in terms of cost,environmental friendliness and ***,the layered puckeredγ’-V_(2)O_(5) polymorph with a porous morphology is firstly introduced as cathode for an aqueous zinc battery system in a binary Zn^(2+)/Li^(+)*** Zn‖γ’-V_(2)O_(5) cell delivers high capacities of 240 and190 mAh g^(-1) at current densities of 29 and 147 mA g^(-1),respectively,and remarkable cycling stability in the 1.6 V-0.7 V voltage window(97%retention after 100 cycles at 0.15 A g^(-1)).The detailed structural evolution during first discharge-charge and subsequent cycling is investigated using X-ray diffraction and Raman *** demonstrate a reaction mechanism based on a selective Li insertion in the1.6 V-1.0 V voltage *** involves a reversible exchange of 0.8 Li^(+)in γ’-V_(2)O_(5) and the same structural response as the one reported in lithiated organic ***,in the extended 1.6 V-0.7 V voltage range,this work puts forward a concomitant and gradual phase transformation from γ’-V_(2)O_(5) to zinc pyrovanadate Zn_(3)V_(2)O_(7)(OH)2.2 H_(2)O(ZVO)during *** mechanism involving the in-situ formation of ZVO,known as an efficient Zn and Li intercalation material,explains the high electrochemical performance here reported for the Zn‖γ’-V_(2)O_(5) *** work highlights the peculiar layered-puckeredγ’-V_(2)O_(5) polymorph outperforms the conventionalα-V_(2)O_(5) with a huge improvement of capacity of 240 mAh g^(-1)vs 80 mAh g^(-1) in the same electrolyte and voltage window.