Superior rate-capability and long-lifespan carbon nanotube-in-nanotube@Sb2S3 anode for lithium-ion storage

Author(s):  
Ziyi Yang ◽  
Yongfeng Yuan ◽  
Min Zhu ◽  
Simin Yin ◽  
J.P. Cheng ◽  
...  

It is vital to improve rate capability and cycling performance of Sb2S3 to promote its application in lithium-ion batteries. Herein, Sb2S3 is successfully anchored inside carbon nanotube-in-nanotube via a multi-step...

2015 ◽  
Vol 3 (7) ◽  
pp. 3962-3967 ◽  
Author(s):  
Xiaolei Wang ◽  
Ge Li ◽  
Fathy M. Hassan ◽  
Matthew Li ◽  
Kun Feng ◽  
...  

High-performance robust CNT–graphene–Si composites are designed as anode materials with enhanced rate capability and excellent cycling stability for lithium-ion batteries. Such an improvement is mainly attributed to the robust sponge-like architecture, which holds great promise in future practical applications.


2013 ◽  
Vol 1540 ◽  
Author(s):  
Chia-Yi Lin ◽  
Chien-Te Hsieh ◽  
Ruey-Shin Juang

ABSTRACTAn efficient microwave-assisted polyol (MP) approach is report to prepare SnO2/graphene hybrid as an anode material for lithium ion batteries. The key factor to this MP method is to start with uniform graphene oxide (GO) suspension, in which a large amount of surface oxygenate groups ensures homogeneous distribution of the SnO2 nanoparticles onto the GO sheets under the microwave irradiation. The period for the microwave heating only takes 10 min. The obtained SnO2/graphene hybrid anode possesses a reversible capacity of 967 mAh g-1 at 0.1 C and a high Coulombic efficiency of 80.5% at the first cycle. The cycling performance and the rate capability of the hybrid anode are enhanced in comparison with that of the bare graphene anode. This improvement of electrochemical performance can be attributed to the formation of a 3-dimensional framework. Accordingly, this study provides an economical MP route for the fabrication of SnO2/graphene hybrid as an anode material for high-performance Li-ion batteries.


2019 ◽  
Vol 19 (6) ◽  
pp. 3610-3615 ◽  
Author(s):  
Lifeng Wang ◽  
Kaiyuan Wei ◽  
Pengjun Zhang ◽  
Hong Wang ◽  
Xiujun Qi ◽  
...  

Potassium-ion batteries (PIBs), as one of the alternatives to lithium-ion batteries (LIBs), have attracted considerable attention on account of the affluence and low-cost of potassium. Moreover, CoC2O4 and graphene oxide (GO) have been used very well in lithium-ion batteries. Hence, the hybrid CoC2O4/GO was investigated as a new anode material for PIBs. The hybrid CoC2O4/GO was synthesized by a facile and cheap method combined with supersonic dispersion. Electrochemical measurements reveal that the hybrid CoC2O4/GO delivered an excellent cycling stability of 166 mAh g−1 at 50 mA g−1 and a superior rate capability even at 1 A g−1. These results demonstrate although the cycle ability was insufficient for practical applications, transition-metal oxalates composites can still bring new hope to the development of PIBs.


2019 ◽  
Vol 43 (3) ◽  
pp. 1238-1246 ◽  
Author(s):  
Duo Zhang ◽  
Chaoqi Bi ◽  
Qingliu Wu ◽  
Guangya Hou ◽  
Guoqu Zheng ◽  
...  

It is a challenge to commercialize tin dioxide-based anodes for lithium-ion batteries due to their low rate capability and poor cycling performance of the electrodes.


2019 ◽  
Vol 7 (38) ◽  
pp. 21766-21773 ◽  
Author(s):  
Shixue Zhang ◽  
Huan Liu ◽  
Bin Cao ◽  
Qizhen Zhu ◽  
Peng Zhang ◽  
...  

A Ti3C2Tx/CNTs@P nanohybrid with stable Ti–O–P bonds is simply fabricated, which exhibits high capacity, excellent long-term cycling stability and superior rate capability as an anode for lithium ion batteries.


2014 ◽  
Vol 2 (46) ◽  
pp. 19670-19677 ◽  
Author(s):  
Junyoung Mun ◽  
Jin-Hwan Park ◽  
Wonchang Choi ◽  
Anass Benayad ◽  
Jun-Ho Park ◽  
...  

For high rate capability and energy density of lithium ion batteries, over-lithiated layered cathodes coated by multiwall carbon nanotube were prepared by a novel dry method without decay in the structure.


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