A Bifunctional-Modulated Conformal Li/Mn-Rich Layered Cathode for Fast-Charging, High Volumetric Density and Durable Li-Ion Full Cells

Nano-Micro Letters

Chongyang Yang¹  Chengxin Peng²  Zedong Zhao³  Hongbin Lu³  Tianqi Wu³  Long Zhang³  Minqiang Sun³  Jiajia Zhang³  Peng Wang³ 

[1] National Engineering Research Center for Supercapacitor for Vehicles, Shanghai Aowei Technology Development Co., Ltd, 201203, Shanghai, People’s Republic of China;School of Materials Science & Engineering, University of Shanghai for Science and Technology, 200093, Shanghai, People’s Republic of China;Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, 300071, Tianjin, People’s Republic of China;State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Collaborative Innovation Center of Polymers and Polymer Composites, Fudan University, 2005 Songhu Road, 200438, Shanghai, People’s Republic of China;

关键词: Lithium- and manganese-rich layered cathode;    Semi-hollow microspheres;    Volumetric energy density;    Conformal structure;    Full cell;   

DOI  :  10.1007/s40820-021-00643-1

来源: Springer

【 摘 要 】

tsA lithium- and manganese-rich (LMR) layered cathode with semi-hollow microsphere structure is synthesized, of which the unique structure design enabled high tap density (2.1 g cm−3) and bidirectional ion diffusion pathwaysThe surface coatings covalent bonded with LMR via C-O-M linkage greatly improves charge transfer efficiency and mitigates surface degradationThe LMR is highly conformal with durable structure integrity, exhibiting high volumetric energy density (2234 Wh L−1) and long cycling life (1000 cycles)

【 授权许可】

CC BY