All-Climate Aluminum-Ion Batteries Based on Binder-Free MOF-Derived FeS2@C/CNT Cathode

Nano-Micro Letters

Deshuang Yu¹  Linlin Li¹  Shengjie Peng¹  Hongjiao Huang¹  Lianzhou Wang²  Yuxiang Hu²  Xinyi Wang²  Xiaobo Zhu²  Han Hu³ 

[1] Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 211106, Nanjing, People’s Republic of China;Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, 4072, Brisbane, Queensland, Australia;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, University of Petroleum (East China), 266580, Qingdao, People’s Republic of China;

关键词: Aluminum-ion battery;    All-climate battery;    Iron sulfide;    Binder-free;    High rate capacity;   

DOI  :  10.1007/s40820-021-00682-8

来源: Springer

【 摘 要 】

tsA binder-free and freestanding all-climate cathode FeS2@C/CNT in aluminum-ion batteries working from −25 to 50 °C with exceptional flexibility, enhanced capacity retention (above 117 mAh g−1) and rate capacity even at a low temperature of −25 °C.High rate capacity (above 151 mAh g−1 at 2 A g−1) and robust long-term stability (above 80 mAh g−1 after 2,000 cycles at 1 A g−1) at room temperature.DFT simulation verifies that the well-designed structure restricts FeS2 pulverization and facilitates the kinetic process of active ion.

【 授权许可】

CC BY