Li4Ti5O12-based anode materials with low working potentials, high rate capabilities and high cyclability for high-power lithium-ion batteries: a synergistic effect of doping, incorporating a conductive phase and reducing the particle size

2014 ◽  
Vol 2 (26) ◽  
pp. 9982-9993 ◽  
Author(s):  
Chunfu Lin ◽  
Xiaoyong Fan ◽  
Yuelong Xin ◽  
Fuquan Cheng ◽  
Man On Lai ◽  
...  

Fe2+/Cr3+ doped LTO/MWCNT composites were made by combining doping, compositing and particle-size reduction, and exhibit improved electrochemical performances.

2018 ◽  
Vol 6 (16) ◽  
pp. 7070-7079 ◽  
Author(s):  
Long Pan ◽  
Zheng-Wei Zhou ◽  
Yi-Tao Liu ◽  
Xu-Ming Xie

A universal strategy is proposed for thein situsynthesis of TiO2(B) nanosheets on pristine carbon nanomaterials. Benefiting from a remarkable synergistic effect, the resulting nanohybrids exhibit superior high-rate lithium storage performance. In this sense, our strategy may open the door to next-generation, high-power and high-energy anode materials for lithium-ion batteries.


2017 ◽  
Vol 5 (48) ◽  
pp. 25319-25327 ◽  
Author(s):  
Gi Dae Park ◽  
Jung-Kul Lee ◽  
Yun Chan Kang

Janus-structured materials are synthesized by spray pyrolysis and a subsequent oxidation process. The synergistic effect of mutual doping of hollow SnO2nanoplates and Co3O4polyhedra, and nanocatalysts of metallic Co resulted in excellent electrochemical performances of the Janus-structured SnO2–Co3O4composite.


2014 ◽  
Vol 50 (64) ◽  
pp. 8856-8859 ◽  
Author(s):  
Weina Chen ◽  
Hao Jiang ◽  
Yanjie Hu ◽  
Yihui Dai ◽  
Chunzhong Li

Mesoporous single crystals Li4Ti5O12 grown on reduced graphene oxide (MSCs-LTO–rGO) nanohybrids have been synthesized by a simple hydrothermal reaction of TiO2/rGO and LiOH with subsequent annealing in Ar at 600 °C, which exhibited excellent electrochemical performances.


2018 ◽  
Vol 6 (29) ◽  
pp. 14339-14351 ◽  
Author(s):  
Chao Huang ◽  
Shi-Xi Zhao ◽  
Hang Peng ◽  
Yuan-Hua Lin ◽  
Ce-Wen Nan ◽  
...  

Dual-phase hierarchical porous Li4Ti5O12–TiO2 (HP LTO–TO) microspheres were synthesized using a topochemical conversion method and used as an anode material in high power lithium ion batteries, particularly for use in low temperature applications.


Graphene-based nanocomposites have been demonstrated to be promising high-capacity anodes for lithium ion batteries to satisfy the ever growing demands for higher capacity, longer cycle life and better high-rate performance. In this study, graphene–metal based anode materials which have high mechanical, electrochemical, electrical and thermal properties were synthesized. To synthesize graphene-based composite anode materials, primarily bulk graphite was oxidized by using modified Hummers method and then graphite oxide was reduced to nano graphene material through thermal exfoliation method. By virtue of this technique, from bulk graphite good quality graphene in high quantities were obtained. Finally, nano metal particles Tin (Sn) and Molybdenum disulfide (MoS2) were added into the graphene nano structure to produce graphene-metal hybrid material. Structural characterization of the obtained samples was characterized by surface electron microscope (SEM), X-Ray Diffraction (XRD) and Raman Spectroscopy. Also electrochemical performances of the prepared composite samples were analyzed in coin cell


Nanoscale ◽  
2018 ◽  
Vol 10 (28) ◽  
pp. 13539-13547 ◽  
Author(s):  
Min Su Jo ◽  
Gi Dae Park ◽  
Yun Chan Kang ◽  
Jung Sang Cho

An efficient and simple synthetic strategy to prepare interconnected hierarchically porous anatase TiO2 nanofibers as anode materials for LIBs is introduced.


2019 ◽  
Vol 30 (33) ◽  
pp. 335701 ◽  
Author(s):  
Fei Wang ◽  
Chuqing Wang ◽  
Hong Chen ◽  
Wenlong Zhang ◽  
Rujia Jiang ◽  
...  

2020 ◽  
Vol 44 (20) ◽  
pp. 8486-8493 ◽  
Author(s):  
Zhongyue Zi ◽  
Yantao Zhang ◽  
Yangqian Meng ◽  
Ge Gao ◽  
Peiyu Hou

The wide particle size distribution of LLO microspheres assembled from {010} exposed primary grains is proposed to improve their Li+ kinetics and tap-density.


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