Fe-doped anatase TiO2/carbon composite as an anode with superior reversible capacity for lithium storage

RSC Advances ◽  
2015 ◽  
Vol 5 (114) ◽  
pp. 93676-93683 ◽  
Author(s):  
Yanqing Lai ◽  
Wenwen Liu ◽  
Jing Fang ◽  
Furong Qin ◽  
Mengran Wang ◽  
...  

This paper reports an economic and effective wet chemistry process to prepare Fe-doped anatase TiO2/carbon composite with excellent performance in lithium-ion batteries.

2011 ◽  
Vol 21 (24) ◽  
pp. 8591 ◽  
Author(s):  
Zunxian Yang ◽  
Guodong Du ◽  
Zaiping Guo ◽  
Xuebin Yu ◽  
Zhixin Chen ◽  
...  

2021 ◽  
pp. 2150031
Author(s):  
Hai Li ◽  
Chunxiang Lu

As anode material for lithium-ion batteries, graphite has the disadvantage of relatively low specific capacity. In this work, a simple yet effective strategy to overcome the disadvantages by using a composite of flake graphite (FG) and small-sized graphene (SG) has been developed. The FG/SG composite prepared by dispersing FG and SG (90:10 w/w) in ethanol and drying delivers much higher specific capacity than that of individual component except for improved rate capability. More surprisingly, FG/SG composite delivers higher reversible capacity than its theoretical value calculated according to the theoretical capacities of graphite and graphene. Therefore, a synergistic effect between FG and SG in lithium storage is clearly discovered. To explain it, we propose a model that abundant nanoscopic cavities were formed due to physical adhesion between FG and SG and could accommodate extra lithium.


2020 ◽  
Vol 4 (9) ◽  
pp. 4780-4788 ◽  
Author(s):  
Qiang Ma ◽  
Jiakang Qu ◽  
Xiang Chen ◽  
Zhuqing Zhao ◽  
Yan Zhao ◽  
...  

Low-cost feedstocks and rationally designed structures are the keys to determining the lithium-storage performance and practical applications of Si-based anodes for lithium-ion batteries (LIBs).


2017 ◽  
Vol 8 ◽  
pp. 649-656 ◽  
Author(s):  
Guoliang Gao ◽  
Yan Jin ◽  
Qun Zeng ◽  
Deyu Wang ◽  
Cai Shen

Metall oxides have been proven to be potential candidates for the anode material of lithium-ion batteries (LIBs) because they offer high theoretical capacities, and are environmentally friendly and widely available. However, the low electronic conductivity and severe irreversible lithium storage have hindered a practical application. Herein, we employed ethanolamine as precursor to prepare Fe2O3/COOH-MWCNT composites through a simple hydrothermal synthesis. When these composites were used as electrode material in lithium-ion batteries, a reversible capacity of 711.2 mAh·g−1 at a current density of 500 mA·g−1 after 400 cycles was obtained. The result indicated that Fe2O3/COOH-MWCNT composite is a potential anode material for lithium-ion batteries.


2015 ◽  
Vol 3 (8) ◽  
pp. 4180-4187 ◽  
Author(s):  
Xiao Yan ◽  
Yanjuan Li ◽  
Malin Li ◽  
Yongcheng Jin ◽  
Fei Du ◽  
...  

A TiO2–bronze/N-doped graphene nanocomposite was prepared by a facile method. The material exhibits outstanding rate capacity. A high reversible capacity of 101.6 mA h g−1 is obtained at the 100C rate, indicating its great potential for use in high power lithium ion batteries.


2016 ◽  
Vol 8 (31) ◽  
pp. 19968-19978 ◽  
Author(s):  
Ruofei Wu ◽  
Shuiyun Shen ◽  
Guofeng Xia ◽  
Fengjuan Zhu ◽  
Christian Lastoskie ◽  
...  

2015 ◽  
Vol 7 (3) ◽  
pp. 1508-1515 ◽  
Author(s):  
Haiping Jia ◽  
Christoph Stock ◽  
Richard Kloepsch ◽  
Xin He ◽  
Juan Pablo Badillo ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (102) ◽  
pp. 99695-99703 ◽  
Author(s):  
Xiaoying Chen ◽  
Li Liu ◽  
Lingguang Yi ◽  
Guoxiong Guo ◽  
Min Li ◽  
...  

Ti3+-Doped anatase TiO2@C composite spheres as the anode materials for lithium ion batteries.


2013 ◽  
Vol 709 ◽  
pp. 157-160 ◽  
Author(s):  
Xiao Yi Zhu ◽  
Jian Jiang Li ◽  
Xi Lin She ◽  
Lin Hua Xia

A facile hydrothermal route has been developed to prepare MnO2/graphene nanocomposites and MnO2 nanoparticles are uniformly anchored on graphene nanosheets. The composite were studied as the anode material for lithium-ion batteries. The surface of graphene is modified by MnO2 nanoparticles which are 10-30 nm in size and homogeneously anchor on graphene sheets. The composite exhibits superior lithium battery performance with higher reversible capacity and better cycling performance. The reversible capacity is up to 781.5 mAh g-1 at a current of 100 mA g-1 and maintains 96% after 50 cycles. The enhanced lithium storage performance is due to the synergetic effect of graphene and MnO2.


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