Continuous fast pyrolysis synthesis of TiO2/C nanohybrid lithium‐ion battery anode

Nano Select

Axel Funke¹  Fang Song²  Xiaoyan Wang³  Jie Gao³  Ya‐Jun Cheng³  Xiuxia Zuo³  Yonggao Xia³  Shanshan Yin⁴  Peter Müller‐Buschbaum⁴  Suzhe Liang⁴ 

[1] Karlsruhe Institute of Technology Institute of Catalysis Research & Technology Eggenstein‐Leopoldshafen Germany;Laboratory of Inorganic Synthesis and Catalysis Institute of Chemical Sciences and Engineering Lausanne Switzerland;Ningbo Institute of Materials Technology & Engineering Chinese Academy of Sciences Ningbo Zhejiang Province P. R. China;Physik‐Department Lehrstuhl für Funktionelle Materialien Technische Universität München Garching Germany;

关键词: anode;    continuous fast pyrolysis;    lithium‐ion battery;    macroporous;    titania;   

DOI  :  10.1002/nano.202100015

来源: DOAJ

【 摘 要 】

Abstract Continuous fast pyrolysis is developed for in situ synthesis of ultra‐small metal oxide nanoparticles embedded into three‐dimensional macroporous carbon matrix as demonstrated by the TiO2/carbon nanohybrid. The TiO2 nanoparticles with the average size of 4.6 nm ± 0.6 nm are uniformly distributed in the in situ generated macroporous carbon matrix. When evaluated as an anode in a lithium‐ion battery, the macroporous TiO2/C nanohybrid exhibits a reversible capacity of 483 mAh g–1 after 500 cycles at a current density of 67 mA g–1, which is 3.6 times higher than that of the TiO2/C calcined in a conventional batchwise way. Besides, the capacity retains 93 mAh g–1 at a high current density of 670 mA g–1. It reveals that the continuous fast pyrolysis is an efficient method to fabricate carbon composition based metal oxides as lithium‐ion battery anode materials.

【 授权许可】

Unknown