Ultrathin dense LiF coverage coupled with a near-surface gradient fluorination lattice enables fast-charging long-life 4.6 V LiCoO2

Author:

Bi Zhihong12,Yi Zonglin3,Zhang Liangzhu4,Wang Gongrui15,Zhang Anping12,Liao Shihao1,Zhao Qinghe6,Peng Zhangquan7ORCID,Song Li8ORCID,Wang Yi12,Zhao Zhiwei7ORCID,Wei Shiqiang8,Zhao Wenguang6,Shi Xiaoyu15,Li Mingrun1,Ta Na1,Mi Jinxing9,Li Shunning6ORCID,Das Pratteek15,Cui Yi1011,Chen Chengmeng3ORCID,Pan Feng6ORCID,Wu Zhong-Shuai15ORCID

Affiliation:

1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China

2. University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing 100049, China

3. CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China

4. School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China

5. Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China

6. School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, China

7. Laboratory of Advanced Spectro-Electrochemistry and Li-Ion Batteries, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China

8. National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei 230029, P. R. China

9. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China

10. Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 215123, Suzhou, China

11. School of Nano Technology and Nano Bionics University of Science and Technology of China, 230026, Hefei, China

Abstract

Schematic diagram of the fluorination interfacial reconstruction process and mechanism for stabilizing the cathode/electrolyte interface.

Funder

National Natural Science Foundation of China

Key Technologies Research and Development Program

Dalian National Laboratory for Clean Energy

Publisher

Royal Society of Chemistry (RSC)

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