Layered phosphorus-like GeP5: a promising anode candidate with high initial coulombic efficiency and large capacity for lithium ion batteries

2015 ◽  
Vol 8 (12) ◽  
pp. 3629-3636 ◽  
Author(s):  
Wenwu Li ◽  
Huiqiao Li ◽  
Zhijuan Lu ◽  
Lin Gan ◽  
Linbo Ke ◽  
...  

Layer structured GeP5 is firstly developed as an anode material for LIB, it delivers a reversible capacity of 2300 mA h g−1 with a very high initial coulombic efficiency of 95%.

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 3 (9) ◽  
pp. 2361-2365 ◽  
Author(s):  
Xiaoyong Dou ◽  
Ming Chen ◽  
Jiantao Zai ◽  
Zhen De ◽  
Boxu Dong ◽  
...  

Silicon (Si) has been regarded as a promising next-generation anode material to replace carbon-based materials for lithium ion batteries (LIBs).


Ionics ◽  
2019 ◽  
Vol 25 (4) ◽  
pp. 1513-1521 ◽  
Author(s):  
Cheng-Lu Liang ◽  
Jiali Li ◽  
Qian Tian ◽  
Qingqing Lin ◽  
Rui-Ying Bao ◽  
...  

2017 ◽  
Vol 727 ◽  
pp. 705-711 ◽  
Author(s):  
Yu Mei Luo ◽  
Li Xian Sun ◽  
Fen Xu ◽  
Zi Qiang Wang

A facile two-step method for preparation of porous carbon materials was reported. We used a novel Co-MOF, made by cobalt nitrate and two organic ligands (9-ethylcarbazole-3,6-dicarboxylic acid and 1,3,5-Benzenetricarboxylic acid), as the template to synthesize the porous carbon through high temperature carbonization, which was applied as an anode material for lithium-ion batteries. A reversible capacity was maintained as high as 549 mA h g-1 after 49 cycles at a current density of 100 mA g-1, with coulombic efficiency of over 95%. The prepared porous carbon electrode also exhibited superior cycle stability and rate performance, making it a promising anode material for lithium-ion batteries.


2018 ◽  
Vol 6 (16) ◽  
pp. 7206-7220 ◽  
Author(s):  
Tao Liang ◽  
Renzong Hu ◽  
Houpo Zhang ◽  
Hanyin Zhang ◽  
Hui Wang ◽  
...  

A new ternary SnO2–Co–C composite has been synthesized by facile and scalable ball milling, which demonstrates a high initial coulombic efficiency (ICE, with average of 80.8%), high reversible specific capacity and a long lifetime (610 mA h g−1 after 1000 cycles at 2 A g−1).


2011 ◽  
Vol 04 (04) ◽  
pp. 327-331 ◽  
Author(s):  
TIANJING ZHANG ◽  
HUJUN CAO ◽  
JUANJUAN PENG ◽  
QIZHEN XIAO ◽  
ZHAOHUI LI ◽  
...  

Three-dimensional ordered macroporous (3DOM) nickel ferrite ( NiFe2O4 ) anode material is synthesized via colloidal crystal template. A Close-packed poly(methyl methacrylate) (PMMA) spheres is used as template. Scanning electron microscopy observations reveal that the obtained 3DOM NiFe2O4 material has uniform spherical macropores with diameter about 140-nm and 20-nm size walls. The cyclic voltammogram and galvanostatic test are employed to evaluate the electrochemical characteristics of the as-prepared NiFe2O4 . It shows high initial discharge capacity (up to 1370 mAh g-1) and reversible capacity of 670 mAh g-1 at the current density of 0.2 mA cm-2. The results suggest that 3DOM nickel ferrite is a good candidate for anode material of lithium ion batteries.


Small ◽  
2021 ◽  
pp. 2102894
Author(s):  
Lin Sun ◽  
Yanxiu Liu ◽  
Jun Wu ◽  
Rong Shao ◽  
Ruiyu Jiang ◽  
...  

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1253 ◽  
Author(s):  
Huihui Zeng ◽  
Baolin Xing ◽  
Lunjian Chen ◽  
Guiyun Yi ◽  
Guangxu Huang ◽  
...  

A novel approach is developed to synthesize a nitrogen-doped porous Co3O4/anthracite-derived graphene (Co3O4/AG) nanocomposite through a combined self-assembly and heat treatment process using resource-rich anthracite as a carbonaceous precursor. The nanocomposite contains uniformly distributed Co3O4 nanoparticles with a size smaller than 8 nm on the surface of porous graphene, and exhibits a specific surface area (120 m2·g−1), well-developed mesopores distributed at 3~10 nm, and a high level of nitrogen doping (5.4 at. %). These unique microstructure features of the nanocomposite can offer extra active sites and efficient pathways during the electrochemical reaction, which are conducive to improvement of the electrochemical performance for the anode material. The Co3O4/AG electrode possesses a high reversible capacity of 845 mAh·g−1 and an excellent rate capacity of 587 mAh·g−1. Furthermore, a good cyclic stability of 510 mAh·g−1 after 100 cycles at 500 mA·g−1 is maintained. Therefore, this work could provide an economical and effective route for the large-scale application of a Co3O4/AG nanocomposite as an excellent anode material in lithium-ion batteries.


Nanoscale ◽  
2020 ◽  
Vol 12 (32) ◽  
pp. 16901-16909
Author(s):  
Bowen Cong ◽  
Yongyuan Hu ◽  
Shanfu Sun ◽  
Yu Wang ◽  
Bo Wang ◽  
...  

A novel Fe3O4/C@VOx hierarchical nanospindle anode material for LIBs has been successfully designed and fabricated through a MOF-derived route, which delivers high coulombic efficiency, outstanding cycling stability and rate performance.


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