Facile synthesis of the Mn_(3)O_(4)polyhedron grown on N-doped honeycomb carbon as high-performance negative material for lithium-ion batteries  

作　　者：Dan Zhang Chunyan Zhang Xuan Zheng Yizhuo Zhao Xinyu Shi Baomin Luo Yuzhu Li Guangyin Liu Xiaodi Liu Chuang Yu 

机构地区：[1]College of Chemistry and Pharmaceutical Engineering,Nanyang Normal University,Nanyang 473061,China [2]State Key Laboratory of Advanced Electromagnetic Engineering and Technology,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2023年第6期1152-1161,共10页矿物冶金与材料学报（英文版）

基　　金：financially supported by the Natural Science Foundation of Henan Province of China(No.222300420252);Nanyang Normal University(Nos.2020ZX013 and 2020ZX014).

摘　　要：Because of their large volume variation and inferior electrical conductivity,Mn_(3)O_(4)-based oxide anode materials have short cyclic lives and poor rate capability,which obstructs their development.In this study,we successfully prepared a Mn_(3)O_(4)/N-doped honeycomb carbon composite using a smart and facile synthetic method.The Mn_(3)O_(4)nanopolyhedra are grown on N-doped honeycomb carbon,which evidently mitigates the volume change in the charging and discharging processes but also improves the electrochemical reaction kinetics.More importantly,the Mn-O-C bond in the Mn_(3)O_(4)/N-doped honeycomb carbon composite benefits electrochemical reversibility.These features of the Mn_(3)O_(4)/N-doped honeycomb carbon(NHC)composite are responsible for its superior electrochemical performance.When used for Li-ion batteries,the Mn_(3)O_(4)/N-doped honeycomb carbon anode exhibits a high reversible capacity of 598 mAh·g^(−1)after 350 cycles at 1 A·g^(−1).Even at 2 A·g^(−1),the Mn_(3)O_(4)/NHC anode still delivers a high capacity of 472 mAh·g^(−1).This work provides a new prospect for synthesizing and developing manganese-based oxide materials for energy storage.

关 键 词：Mn_(3)O_(4) POLYHEDRON nitrogen-doped honeycomb carbon anode lithium-ion battery 

分 类 号：TM912[电气工程—电力电子与电力传动] TB332[一般工业技术—材料科学与工程]