Structure and electrochemical properties of Sm-doped Li4Ti5O12 as anode material for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (19) ◽  
pp. 15492-15500 ◽  
Author(s):  
Zhanyu Li ◽  
Jianling Li ◽  
Yuguang Zhao ◽  
Kai Yang ◽  
Fei Gao ◽  
...  

Sm doping has a great impact on discharge capacity, rate capability and cycling performance of LTO anode materials for lithium-ion batteries.

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.


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.


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.


2014 ◽  
Vol 2 (32) ◽  
pp. 13069-13074 ◽  
Author(s):  
Xin Xu ◽  
Bitao Dong ◽  
Shujiang Ding ◽  
Chunhui Xiao ◽  
Demei Yu

NiCoO2 nanosheets@amorphous CNT composites show enhanced cycling performance and rate capability as anode materials for lithium-ion batteries.


2015 ◽  
Vol 1120-1121 ◽  
pp. 281-285 ◽  
Author(s):  
Yue Zhang ◽  
Yu Jing Zhu ◽  
Yuan Xiang Gu ◽  
Rui Xin Chen

We synthesized nano-Li4Ti5O12 particles by solvothermal method. The as-prepared materials were characterized by XRD, SEM, TEM and electrochemical measurements. The Li4Ti5O12Li4Ti5O12 showed excellent rate capability and cycle ability. The as-preparedLi4Ti5O12 Li4Ti5O12 electrode exhibited highly initial discharge capacity 176 mAh/g at 0.1 C rate up to, which was slightly higher than its theoretical capacity (175 mAh/g). By increasing the C-rate, the cell showed 152, 143, 138 and 135 mAh/g at 0.5, 1, 1.5 and 2 C, respectively.


2015 ◽  
Vol 3 (16) ◽  
pp. 8683-8692 ◽  
Author(s):  
Lingyun Guo ◽  
Qiang Ru ◽  
Xiong Song ◽  
Shejun Hu ◽  
Yudi Mo

The as-prepared pineapple-shaped ZCO with a porous nanostructure shows a high specific capacity, superior rate capability and excellent cycling stability when used as an anode material for LIBs.


RSC Advances ◽  
2015 ◽  
Vol 5 (128) ◽  
pp. 105643-105650 ◽  
Author(s):  
Yongliang Li ◽  
Wei Zhang ◽  
Huihua Cai ◽  
Jingwei Wang ◽  
Xiangzhong Ren ◽  
...  

The addition of ZnO significantly improved the cycling performance and rate capability of SnSb alloy anode material.


2016 ◽  
Vol 52 (10) ◽  
pp. 2035-2038 ◽  
Author(s):  
Chao Li ◽  
Xiaoshi Hu ◽  
Xiaobing Lou ◽  
Qun Chen ◽  
Bingwen Hu

Bimetallic coordination polymers (BiCPs) with Zn and Co were synthesized by a simple method and applied as anode materials for the first time. When used as anode materials in LIBs, the as-prepared BiCPs exhibit ultra-high capacity and impressive rate capability.


2016 ◽  
Vol 4 (2) ◽  
pp. 605-611 ◽  
Author(s):  
Qing Xia ◽  
Hailei Zhao ◽  
Zhihong Du ◽  
Zijia Zhang ◽  
Shanming Li ◽  
...  

3-D hierarchical MoO2/Ni/C, with high reversible capacity and excellent rate capability, is a promising candidate for anode materials of lithium ion batteries.


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