A simple physical mixing method for MnO2/MnO ...
Document type :
Compte-rendu et recension critique d'ouvrage
Title :
A simple physical mixing method for MnO2/MnO nanocomposites with superior Zn2+ storage performance
Author(s) :
Zang, Xiao-Bei [Auteur]
Li, Ling-Tong [Auteur]
Sun, Zhi-Xin [Auteur]
Boukherroub, Rabah [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
NanoBioInterfaces - IEMN [NBI - IEMN]
Meng, Jia-Xin [Auteur]
Cai, Kun-Peng [Auteur]
Shao, Qing-Guo [Auteur]
Cao, Ning [Auteur correspondant]
Li, Ling-Tong [Auteur]
Sun, Zhi-Xin [Auteur]
Boukherroub, Rabah [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
NanoBioInterfaces - IEMN [NBI - IEMN]
Meng, Jia-Xin [Auteur]
Cai, Kun-Peng [Auteur]
Shao, Qing-Guo [Auteur]
Cao, Ning [Auteur correspondant]
Journal title :
Transactions of Nonferrous Metals Society of China
Pages :
3347-3355
Publisher :
Elsevier
Publication date :
2020-12
ISSN :
1003-6326
English keyword(s) :
zinc-ion battery
MnO2/MnO cathode material
physical mixing method
reaction kinetics
MnO2/MnO cathode material
physical mixing method
reaction kinetics
HAL domain(s) :
Sciences de l'ingénieur [physics]
English abstract : [en]
MnO2/MnO cathode material with superior Zn2+ storage performance is prepared through a simple physical mixing method. The MnO2/MnO nanocomposite with a mixed mass ratio of 12:1 exhibits the highest specific capacity (364.2 ...
Show more >MnO2/MnO cathode material with superior Zn2+ storage performance is prepared through a simple physical mixing method. The MnO2/MnO nanocomposite with a mixed mass ratio of 12:1 exhibits the highest specific capacity (364.2 mA.h/g at 0.2C), good cycle performance (170.4 mA.h/g after 100 cycles) and excellent rate performance (205.7 mA.h/g at 2C). Analysis of cyclic voltammetry (CV) data at various scan rates shows that both diffusion-controlled insertion behavior and surface capacitive behavior contribute to the Zn2+ storage performance of MnO2/MnO cathodes. And the capacitive behavior contributes more at high discharge rates, due to the short paths of ion diffusion and the rapid transfer of electrons.Show less >
Show more >MnO2/MnO cathode material with superior Zn2+ storage performance is prepared through a simple physical mixing method. The MnO2/MnO nanocomposite with a mixed mass ratio of 12:1 exhibits the highest specific capacity (364.2 mA.h/g at 0.2C), good cycle performance (170.4 mA.h/g after 100 cycles) and excellent rate performance (205.7 mA.h/g at 2C). Analysis of cyclic voltammetry (CV) data at various scan rates shows that both diffusion-controlled insertion behavior and surface capacitive behavior contribute to the Zn2+ storage performance of MnO2/MnO cathodes. And the capacitive behavior contributes more at high discharge rates, due to the short paths of ion diffusion and the rapid transfer of electrons.Show less >
Language :
Anglais
Popular science :
Non
Source :