Electrodeposition of a dendrite‐free 3D Al anode for improving cycling of an aluminum–graphite battery

Carbon Energy

Fuming Chen¹  Chenyang Zha²  Junfeng Li²  Shunping Ji²  Chengzong Yuan²  Kwun Nam Hui²  Xi Fan³  Shuxing Wu⁴  Kwan San Hui⁵  Feng Bin⁶  Zongping Shao⁷ 

[1] Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering South China Normal University Guangzhou China;Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering University of Macau, Avenida da Universidade Taipa China;Ningbo Institute of Materials Technology, Engineering Chinese Academy of Sciences Ningbo China;School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China;School of Engineering, Faculty of Science University of East Anglia Norwich UK;State Key Laboratory of High‐Temperature Gas Dynamics, Institute of Mechanics Chinese Academy of Sciences Beijing China;State Key Laboratory of Materials‐Oriented Chemical Engineering, College of Chemical Engineering Nanjing Tech University Nanjing China;

关键词: 3D Al anode;    ionic liquid;    metallic;    plating/stripping;    stability;   

DOI  :  10.1002/cey2.155

来源: DOAJ

【 摘 要 】

Abstract Aluminum–metal batteries show great potential as next‐generation energy storage due to their abundant resources and intrinsic safety. However, the crucial limitations of metallic Al anodes, such as dendrite and corrosion problems in conventional aluminum–metal batteries, remain challenging and elusive. Here, we report a novel electrodeposition strategy to prepare an optimized 3D Al anode on carbon cloth with an uniform deposition morphology, low local current density, and mitigatory volume change. The symmetrical cells with the 3D Al anode show superior stable cycling (>450 h) and low‐voltage hysteresis (~170 mV) at 0.5 mA cm−2. High reversibility (~99.7%) is achieved for the Al plating/stripping. The graphite | | Al‐4/CC full batteries show a long lifespan of 800 cycles with 54 mAh g−1 capacity at a high current density of 1000 mA g−1, benefiting from the high capacitive‐controlled distribution. This study proposes a novel strategy to design 3D Al anodes for metallic‐Al‐based batteries by eliminating the problems of planar Al anodes and realizing the potential applications of aluminum–graphite batteries.

【 授权许可】

Unknown