scholarly journals Porous Fe2O3 nanorod-decorated hollow carbon nanofibers for high-rate lithium storage

2021 ◽  
Author(s):  
Zhiwen Long ◽  
Luhan Yuan ◽  
Chu Shi ◽  
Caiqin Wu ◽  
Hui Qiao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Volume Expansion ◽  
Anode Materials ◽  
Carbon Nanofiber ◽  
Lithium Ion ◽  
Rate Performance ◽  
Current Densities ◽  
Hollow Carbon ◽  
Charge Discharge

AbstractTransition metal oxides (TMOs) are considered as promising anode materials for lithium-ion batteries in comparison with conventional graphite anode. However, TMO anodes suffer severe volume expansion during charge/discharge process. In this respect, a porous Fe2O3 nanorod-decorated hollow carbon nanofiber (HNF) anode is designed via a combined electrospinning and hydrothermal method followed by proper annealing. FeOOH/PAN was prepared as precursors and sacrificial templates, and porous hollow Fe2O3@carbon nanofiber (HNF-450) composite is formed at 450 °C in air. As anode materials for lithium-ion batteries, HNF-450 exhibits outstanding rate performance and cycling stability with a reversible discharge capacity of 1398 mAh g−1 after 100 cycles at a current density of 100 mA g−1. Specific capacities 1682, 1515, 1293, 987, and 687 mAh g−1 of HNF-450 are achieved at multiple current densities of 200, 300, 500, 1000, and 2000 mA g−1, respectively. When coupled with commercial LiCoO2 cathode, the full cell delivered an outstanding initial charge/discharge capacity of 614/437 mAh g−1 and stability at different current densities. The improved electrochemical performance is mainly attributed to the free space provided by the unique porous hollow structure, which effectively alleviates the volume expansion and facilitates the exposure of more active sites during the lithiation/delithiation process. Graphical abstract Porous Fe2O3 nanorod-decorated hollow carbon nanofibers exhibit outstanding rate performance and cycling stability with a high reversible discharge capacity.

Micelle templated NiO hollow nanospheres as anode materials in lithium ion batteries

2014 ◽  
Vol 2 (20) ◽  
pp. 7337-7344 ◽  
Author(s):  
Manickam Sasidharan ◽  
Nanda Gunawardhana ◽  
Chenrayan Senthil ◽  
Masaki Yoshio
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Lithium Ion ◽  
Rechargeable Batteries ◽  
Rate Performance ◽  
Hollow Nanospheres ◽  
High Charge ◽  
Discharge Capacities ◽  
Charge Discharge

A hollow NiO nanosphere constructed electrode exhibits high charge–discharge capacities, cycling and rate performance in lithium ion rechargeable batteries.

Carbon nanofiber-supported B2O3–SnOx glasses as anode materials for high-performance lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 89099-89104 ◽  
Author(s):  
Qian Li ◽  
Jin-Le Lan ◽  
Yuan Liu ◽  
Yunhua Yu ◽  
Xiaoping Yang
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Lithium Ion ◽  
Charge Discharge

The addition of boron effectively prohibits the aggregation of Sn nanoparticles during the charge–discharge cycles.

scholarly journals Heteroatom-doped core/shell carbonaceous framework materials: synthesis, characterization and electrochemical properties

2019 ◽  
Vol 43 (14) ◽  
pp. 5632-5641 ◽  
Author(s):  
Yutao Zhou ◽  
Qianye Huang ◽  
Chee Tong John Low ◽  
Richard I. Walton ◽  
Tony McNally ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Anode Materials ◽  
Lithium Ion ◽  
Core Shell ◽  
Materials Synthesis ◽  
Framework Materials ◽  
Excellent Cycling Stability ◽  
Charge Discharge

Multiple heteroatom-doped core/shell carbonaceous framework materials showed a rapid charge–discharge capacity and excellent cycling stability, demonstrating great potential for anode materials for lithium ion batteries.

Graphite@Silicon embedded in Carbon Conformally Coated Tiny SiO2 Nanoparticles Matrix for High-Performance Lithium-Ion Batteries

2021 ◽  
Author(s):  
Huitian Liu ◽  
Xu Liu ◽  
Zhaolin Liu ◽  
Junyan Tao ◽  
Xiaoqian Dai ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Large Volume ◽  
Volume Expansion ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Sio2 Nanoparticles ◽  
Carbon Composites ◽  
Effective Strategy ◽  
Si Anode

Engineering of graphite@Si/carbon composites is considered as an effective strategy to surmount the shortcomings of low conductivity and large volume expansion of bare Si anode materials for lithium-ion batteries. Nevertheless,...

Research Progress and Application of Modified Silicon-Based Anode Materials for Lithium-Ion Batteries

2021 ◽  
Vol 1036 ◽  
pp. 35-44
Author(s):  
Ling Fang Ruan ◽  
Jia Wei Wang ◽  
Shao Ming Ying
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Volume Expansion ◽  
Anode Materials ◽  
Active Material ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Research Progress ◽  
Ion Intercalation ◽  
Silicon Based

Silicon-based anode materials have been widely discussed by researchers because of its high theoretical capacity, abundant resources and low working voltage platform,which has been considered to be the most promising anode materials for lithium-ion batteries. However,there are some problems existing in the silicon-based anode materials greatly limit its wide application: during the process of charge/discharge, the materials are prone to about 300% volume expansion, which will resultin huge stress-strain and crushing or collapse on the anods; in the process of lithium removal, there is some reaction between active material and current collector, which creat an increase in the thickness of the solid phase electrolytic layer(SEI film); during charging and discharging, with the increase of cycle times, cracks will appear on the surface of silicon-based anode materials, which will cause the batteries life to decline. In order to solve these problems, firstly, we summarize the design of porous structure of nanometer sized silicon-based materials and focus on the construction of three-dimensional structural silicon-based materials, which using natural biomass, nanoporous carbon and metal organic framework as structural template. The three-dimensional structure not only increases the channel of lithium-ion intercalation and the rate of ion intercalation, but also makes the structure more stable than one-dimensional or two-dimensional. Secondly, the Si/C composite, SiOx composite and alloying treatment can improve the volume expansion effection, increase the rate of lithium-ion deblocking and optimize the electrochemical performance of the material. The composite materials are usually coated with elastic conductive materials on the surface to reduce the stress, increase the conductivity and improve the electrochemical performance. Finally, the future research direction of silicon-based anode materials is prospected.

Improved rate performance and cycling stability of graphitized mesoporous carbon as anode materials for lithium-ion batteries

2018 ◽  
Vol 54 (1) ◽  
pp. 648-658 ◽  
Author(s):  
Jing Zhang ◽  
Tianxiang Xu ◽  
Ye Cong ◽  
Yeqiong Zhang ◽  
Xuanke Li ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Mesoporous Carbon ◽  
Anode Materials ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Rate Performance

Graphite-like structure of disordered polynaphthalene hard carbon anode derived from carbonization of perylene-3,4,9,10-tetracarboxylic dianhydride for fast charging lithium-ion batteries

2021 ◽  
Author(s):  
yitao lou ◽  
XianFa Rao ◽  
Jianjun Zhao ◽  
Jun Chen ◽  
Baobao Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Lithium Ion Batteries ◽  
Carbon Material ◽  
Anode Materials ◽  
Lithium Ion ◽  
Carbon Anode ◽  
Hard Carbon ◽  
Fast Charging ◽  
Tetracarboxylic Dianhydride ◽  
Charge Discharge

In order to develop novel fast charge/discharge carbon anode materials, an organic hard carbon material (PTCDA-1100) is obtained by calcination of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) at high temperature of 1100 oC....

Bi-MOF derived micro/meso-porous Bi@C nanoplates for high performance lithium-ion batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (28) ◽  
pp. 15214-15221 ◽  
Author(s):  
Min-Kun Kim ◽  
Min-Seob Kim ◽  
Jae-Hyuk Park ◽  
Jin Kim ◽  
Chi-Yeong Ahn ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Hydrothermal Method ◽  
Volume Expansion ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Microwave Assisted

Micro/meso-porous Bi@C nanoplates are synthesized by pyrolyzing Bi-based MOFs prepared by a microwave-assisted hydrothermal method to overcome huge volume expansion and pulverization of anode materials during battery operation.

Sign in / Sign up

Export Citation Format

Share Document