scholarly journals MoS2 with an intercalation reaction as a long-life anode material for lithium ion batteries

2016 ◽  
Vol 3 (4) ◽  
pp. 532-535 ◽  
Author(s):  
Zhe Hu ◽  
Qiannan Liu ◽  
Weiyi Sun ◽  
Weijie Li ◽  
Zhanliang Tao ◽  
...  

MoS2 without carbon modification has achieved a long cycling performance by cutting off the terminal discharge voltage to preserve a layered structure.

Nano Energy ◽  
2014 ◽  
Vol 4 ◽  
pp. 23-30 ◽  
Author(s):  
Yinzhu Jiang ◽  
Dan Zhang ◽  
Yong Li ◽  
Tianzhi Yuan ◽  
Naoufal Bahlawane ◽  
...  

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.


2015 ◽  
Vol 1095 ◽  
pp. 333-340
Author(s):  
Chuan Ning Yang ◽  
Yong Quan Qing ◽  
Chang Sheng Liu

Graphene paper (GP) with layered structure and highly conductive network is fabricated by a facile technique of vacuum filtration and studied as a single-component and binder-free anode of lithium ion batteries (LIBs). The process of fabrication of GP without any binder and high-temperature treatment, in the meantime, great improvement in both the capacity and cycling performance of the GP electrodes have compared with other kinds of traditional graphite electrode materials. Given the simplifying anode fabrication, low manufacturing costs and many electrochemical properties of the GP anode, it is regarded as an excellent anode material of LIB with great promise for its both excellent cycling performance and electrochemical properties. The specific capacity can reach to over 200 mAhg-1after 60 charge-discharge cycles under the current rate of 50 mAg-1.


2012 ◽  
Vol 22 (27) ◽  
pp. 13826 ◽  
Author(s):  
Yongming Sun ◽  
Xianluo Hu ◽  
Wei Luo ◽  
Yunhui Huang

2020 ◽  
Vol 20 (11) ◽  
pp. 7051-7056
Author(s):  
Jungwon Heo ◽  
Anupriya K. Haridas ◽  
Xueying Li ◽  
Rakesh Saroha ◽  
Younki Lee ◽  
...  

Transition metal oxide materials with high theoretical capacities have been studied as substitutes for commercial graphite in lithiumion batteries. Among these, SnO2 is a promising alloying reaction-based anode material. However, the problem of rapid capacity fading in SnO2 due to volume variation during the alloying/dealloying processes must be solved. The lithiation of SnO2 results in the formation of a Li2O matrix. Herein, the volume variation of SnO2 was suppressed by controlling the voltage window to 1 V to prevent the delithiation reaction between Li2O and Sn. Using this strategy the unreacted Li2O matrix was enriched with metallic Sn particles, thereby providing a pathway for lithium ions. The specific capacity decay in the voltage window of 0.05–3 V was 1.8% per cycle. However, the specific capacity decay was improved to 0.04% per cycle after the voltage window was restricted (in the range of 0.05–1 V). This strategy resulted in a specific capacity of 374.7 mAh g−1 at 0.1 C after 40 cycles for the SnO2 anode.


2015 ◽  
Vol 3 (12) ◽  
pp. 6392-6401 ◽  
Author(s):  
Bangjun Guo ◽  
Ke Yu ◽  
Hao Fu ◽  
Qiqi Hua ◽  
Ruijuan Qi ◽  
...  

Firework-shaped TiO2 microspheres embedded with few-layer MoS2 are prepared by a novel strategy, and the composite electrode exhibits excellent cycling performance, high capacity and rate capability compared to pure MoS2 and TiO2 electrodes.


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