Stable wide-temperature and low volume expansion Al batteries:Integrating few-layer graphene with multifunctional cobalt boride nanocluster as positive electrode

作     者：Li-Li Chen Na Li Huifeng Shi Yuefei Zhang Wei-Li Song Shuqiang Jiao Haosen Chen Daining Fang Li-Li Chen;Na Li;Huifeng Shi;Yuefei Zhang;Wei-Li Song;Shuqiang Jiao;Haosen Chen;Daining Fang

作者机构：Institute of Advanced Structure TechnologyBeijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and StructuresBeijing Institute of TechnologyBeijing 100081China School of Materials Science&EngineeringBeijing Institute of TechnologBeijing 100081China State Key Laboratory of Advanced MetallurgyUniversity of Science and Technology BeijingBeijing 100083China Institute of Microstructure and Property of Advarced MaterialsBeijing University of TechnologyBejing 100124China State Key Laboratory for Turbulence and Complex SystemsCollege of EngineeringPeking UniversityBeijing 100871China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2020年第13卷第2期

页      面：419-429页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：Financial support from the National Key R&D Program of China(No.2018YFB0104400) the National Natural Science Foundation of China(Nos.51725401,51874019 and 11672341) the Fundamental Research Funds for the Central Universities(No.FRFTP-17-002C2)is gratefully acknowledged 

主　　题：Al batteries positive electrode cobalt boride nanoclusters ionic liquid broad temperature 

摘      要：To achieve stable positive electrode for promoting the overall electrochemical performance of Al batteries(ABs),here novel cobalt boride(CoB)nanoclusters are synthesized to construct composite electrodes with few-layer graphene(FLG).Due to the presence of amorphous channels in the employed CoB nanoclusters,the ABs with FLG/CoB composite positive electrodes exhibit high *** and both mechanical and electrochemical stability in the *** assistance of in situ scanning electron microscopy(SEM),the observation results suggest that the positive electrode of CoB nanoclusters holds almost ignorable volume variation upon electrochemical processes,which substantially alleviates the massive electrode expansion induced by the anion intercalation in the composite positive ***,the composite positive electrodes provide stable reversible energy storage capability within a broadened temperature range(-30-60℃),promising a novel strategy to design advanced ABs positive electrodes with enhanced overall energy storage performance.