A compact silicon–carbon composite with an embedded structure for high cycling coulombic efficiency anode materials in lithium-ion batteries

2020 ◽  
Vol 7 (13) ◽  
pp. 2487-2496 ◽  
Author(s):  
Wei Zhang ◽  
Sheng Fang ◽  
Ning Wang ◽  
Jianhua Zhang ◽  
Bimeng Shi ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Coulombic Efficiency ◽  
Coal Tar ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Carbon Composite ◽  
Coal Tar Pitch ◽  
Silicon Carbon ◽  
Embedded Structure

A compact silicon–carbon composite with an embedded structure, which is prepared using coal tar pitch and nanosilicon, can be developed into an anode material with excellent structural stability and cycling performance.

scholarly journals Dealloying-Derived Nanoporous Cu6Sn5 Alloy as Stable Anode Materials for Lithium-Ion Batteries

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4348
Author(s):  
Chi Zhang ◽  
Zheng Wang ◽  
Yu Cui ◽  
Xuyao Niu ◽  
Mei Chen ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Specific Area ◽  
Cycling Performance ◽  
Ex Situ ◽  
Li Ion ◽  
Xrd Patterns ◽  
Cu6sn5 Alloy

The volume expansion during Li ion insertion/extraction remains an obstacle for the application of Sn-based anode in lithium ion-batteries. Herein, the nanoporous (np) Cu6Sn5 alloy and Cu6Sn5/Sn composite were applied as a lithium-ion battery anode. The as-dealloyed np-Cu6Sn5 has an ultrafine ligament size of 40 nm and a high BET-specific area of 15.9 m2 g−1. The anode shows an initial discharge capacity as high as 1200 mA h g−1, and it remains a capacity of higher than 600 mA h g−1 for the initial five cycles at 0.1 A g−1. After 100 cycles, the anode maintains a stable capacity higher than 200 mA h g−1 for at least 350 cycles, with outstanding Coulombic efficiency. The ex situ XRD patterns reveal the reverse phase transformation between Cu6Sn5 and Li2CuSn. The Cu6Sn5/Sn composite presents a similar cycling performance with a slightly inferior rate performance compared to np-Cu6Sn5. The study demonstrates that dealloyed nanoporous Cu6Sn5 alloy could be a promising candidate for lithium-ion batteries.

High performance silicon carbon composite anode materials for lithium ion batteries

2009 ◽  
Vol 189 (1) ◽  
pp. 16-21 ◽  
Author(s):  
Zhaojun Luo ◽  
Dongdong Fan ◽  
Xianlong Liu ◽  
Huanyu Mao ◽  
Caifang Yao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Composite Anode ◽  
Silicon Carbon

scholarly journals Solutions for the problems of silicon–carbon anode materials for lithium-ion batteries

2018 ◽  
Vol 5 (6) ◽  
pp. 172370 ◽  
Author(s):  
Xuyan Liu ◽  
Xinjie Zhu ◽  
Deng Pan
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Carbon Anode ◽  
Environmental Friendliness ◽  
Silicon Carbon ◽  
New Energy ◽  
Carbon Anodes

Lithium-ion batteries are widely used in various industries, such as portable electronic devices, mobile phones, new energy car batteries, etc., and show great potential for more demanding applications like electric vehicles. Among advanced anode materials applied to lithium-ion batteries, silicon–carbon anodes have been explored extensively due to their high capacity, good operation potential, environmental friendliness and high abundance. Silicon–carbon anodes have demonstrated great potential as an anode material for lithium-ion batteries because they have perfectly improved the problems that existed in silicon anodes, such as the particle pulverization, shedding and failures of electrochemical performance during lithiation and delithiation. However, there are still some problems, such as low first discharge efficiency, poor conductivity and poor cycling performance, which need to be improved. This paper mainly presents some methods for solving the existing problems of silicon–carbon anode materials through different perspectives.

Nanoscale Electrical Degradation of Silicon–Carbon Composite Anode Materials for Lithium-Ion Batteries

2018 ◽  
Vol 10 (29) ◽  
pp. 24549-24553 ◽  
Author(s):  
Seong Heon Kim ◽  
Yong Su Kim ◽  
Woon Joong Baek ◽  
Sung Heo ◽  
Dong-Jin Yun ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Composite Anode ◽  
Electrical Degradation ◽  
Silicon Carbon

scholarly journals Graphene enhanced silicon/carbon composite as anode for high performance lithium-ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (76) ◽  
pp. 48286-48293 ◽  
Author(s):  
Xiaohui Li ◽  
Mengqiang Wu ◽  
Tingting Feng ◽  
Ziqiang Xu ◽  
Jingang Qin ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Research Topic ◽  
Silicon Carbon ◽  
High Theoretical Capacity ◽  
Silicon Based

Silicon-based anode materials for lithium ion batteries (LIBs) have become a hot research topic due to their remarkably high theoretical capacity (4200 mA h g−1).

Top‐Down Synthesis of Silicon/Carbon Composite Anode Materials for Lithium‐Ion Batteries: Mechanical Milling and Etching

ChemSusChem ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1923-1946 ◽  
Author(s):  
Joseph Nzabahimana ◽  
Zhifang Liu ◽  
Songtao Guo ◽  
Libin Wang ◽  
Xianluo Hu
Keyword(s):  
Lithium Ion Batteries ◽  
Mechanical Milling ◽  
Anode Materials ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Composite Anode ◽  
Top Down ◽  
Silicon Carbon

scholarly journals Review-Recent development on silicon-based anodes for high-performance Lithium-Ion Batteries

2021 ◽  
Vol 252 ◽  
pp. 03004
Author(s):  
Chengwei Zhang
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Existing Problems ◽  
Silicon Carbon ◽  
Theoretical Specific Capacity ◽  
Silicon Based

Silicon has been recognized as one of the most promising anode materials for lithium-ion batteries (LIBs) due to its high theoretical specific capacity and similar working voltage as the lithium anode. However, there are some unavoidable drawbacks including volume expansion effects, low conductivity, the constant formation of SEI during lithiation and delithiation contributes to its fewer possibilities for commercialization. Therefore, modification of silicon for better performance is required for future applications. This review demonstrates recent progress and development of modification for the silicon-based anode including silicon-carbon composite with yolk-shell structure, nanostructured silicon, and alloying method. Finally, the existing problems and future improvements are also discussed based on current development.

Silicon/Carbon Composite Anode Materials for Lithium-Ion Batteries

2019 ◽  
Vol 2 (1) ◽  
pp. 149-198 ◽  
Author(s):  
Fei Dou ◽  
Liyi Shi ◽  
Guorong Chen ◽  
Dengsong Zhang
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Composite Anode ◽  
Silicon Carbon
Sign in / Sign up

Export Citation Format

Share Document