Hollow sphere structured V2O3@C as an anode material for high capacity potassium-ion batteries

2020 ◽  
Vol 8 (26) ◽  
pp. 13261-13266 ◽  
Author(s):  
Fei Chen ◽  
Shuo Wang ◽  
Xiao-Dong He ◽  
Jia-Ying Liao ◽  
Qiao Hu ◽  
...  
Keyword(s):  
Anode Material ◽  
Volume Change ◽  
Hollow Sphere ◽  
Carbon Coating ◽  
Electronic Conductivity ◽  
Hollow Spheres ◽  
High Capacity ◽  
Hollow Structure ◽  
Rate Performance ◽  
Carbon Coated

Carbon-coated V2O3 hollow spheres are synthesized by a solvothermal route, with promising cycling stability and rate performance for PIBs. The homogeneous carbon coating improves the electronic conductivity and the hollow structure buffers the volume change during cycling.

Carbon coated K0.8Ti1.73Li0.27O4: a novel anode material for sodium-ion batteries with a long cycle life

2015 ◽  
Vol 51 (9) ◽  
pp. 1608-1611 ◽  
Author(s):  
Kong-yao Chen ◽  
Wu-xing Zhang ◽  
Yang Liu ◽  
Hua-ping Zhu ◽  
Jian Duan ◽  
...  
Keyword(s):  
Anode Material ◽  
Carbon Coating ◽  
High Capacity ◽  
Rate Capability ◽  
Cycle Life ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Long Cycle Life ◽  
Carbon Coated ◽  
Cycling Life

A breakthrough has been made for layered K0.8Ti1.73Li0.27O4 as an anode material in sodium ion batteries via gaseous carbon coating, demonstrating a high capacity, excellent rate capability and long cycling life.

Facile synthesis of Uniform N-doped Carbon-Coated TiO2 Hollow Spheres with Enhanced Lithium Storage Performances

Nanoscale ◽  
2021 ◽  
Author(s):  
Mengna Fan ◽  
Zhonghu Yang ◽  
Zhihua Lin ◽  
Xunhui Xiong
Keyword(s):  
Carbon Coating ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Rate Performance ◽  
Facile Synthesis ◽  
Lithium Storage ◽  
The Poor ◽  
Carbon Coated ◽  
Tio2 Hollow Spheres ◽  
Tio2 Anode

Great efforts, such as nano-structuring and carbon coating, have been devoted to addressing the poor rate performance of TiO2 anode in lithium ion battery, which is mainly caused by the...

scholarly journals Constructing Carbon-Coated Fe3O4 Hierarchical Microstructures with a Porous Structure and their Excellent Cr(VI) Ion Removal Properties

2021 ◽  
Author(s):  
xiaoping wu ◽  
Lin Cheng ◽  
Chang-Sheng Song ◽  
Yi-Zhe Zhang ◽  
Xiao-Jing Shi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Magnetic Nanoparticles ◽  
Solvothermal Method ◽  
Hollow Spheres ◽  
High Capacity ◽  
Hollow Structure ◽  
Magnetic Composite ◽  
Ion Removal ◽  
Carbon Coated ◽  
Facile Solvothermal Method

Abstract Here, a facile solvothermal method coupled with an annealing strategy is developed to synthesize Fe3O4/carbon (Fe3O4@C) magnetic composite microstructures with different morphologies, including flower-like, hollow spheres and egg-like. Owing to the unique multi-porous and hollow structure, the as-prepared hierarchical Fe3O4@C hollow microspheres composite exhibit appealing performance as an absorbent of Cr(VI) ions in aqueous solution, delivering a high capacity of ca.197.2mg/g. Furthermore, the magnetic Fe3O4 ‘‘core’’ in composite hierarchical microstructures makes them easy to separate from aqueous systems by magnetic separation, the layer of carbon effectively prevents agglomerations of magnetic nanoparticles and expands their range of applications. The excellent Cr(VI) ions adsorbent activities of the Fe3O4@C magnetic composite microstructures would have a potential adsorbing material application in environmental purification.

scholarly journals Nanocomposite of Si/C Anode Material Prepared by Hybrid Process of High-Energy Mechanical Milling and Carbonization for Li-Ion Secondary Batteries

2018 ◽  
Vol 8 (11) ◽  
pp. 2140 ◽  
Author(s):  
Reddyprakash Maddipatla ◽  
Chadrasekhar Loka ◽  
Woo Choi ◽  
Kee-Sun Lee
Keyword(s):  
Electron Microscopy ◽  
Anode Material ◽  
Mechanical Milling ◽  
Coulombic Efficiency ◽  
Electronic Conductivity ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
Particle Size Reduction ◽  
Milled Powders

Si/C nanocomposite was successfully prepared by a scalable approach through high-energy mechanical milling and carbonization process. The crystalline structure of the milled powders was studied using X-ray diffraction (XRD) and transmission electron microscopy (TEM). Morphology of the milled powders was investigated by Field-emission scanning electron microscopy (FE-SEM). The effects of milling time on crystalline size, crystal structure and microstructure, and the electrochemical properties of the nanocomposite powders were studied. The nanocomposite showed high reversible capacity of ~1658 mAh/g with an initial cycle coulombic efficiency of ~77.5%. The significant improvement in cyclability and the discharge capacity was mainly ascribed to the silicon particle size reduction and carbon layer formation over silicon for good electronic conductivity. As the prepared nanocomposite Si/C electrode exhibits remarkable electrochemical performance, it is potentially applied as a high capacity anode material in the lithium-ion secondary batteries.

Hierarchical bicomponent TiO2 hollow spheres as a new high-capacity anode material for lithium-ion batteries

2018 ◽  
Vol 53 (11) ◽  
pp. 8499-8509 ◽  
Author(s):  
Ruiping Liu ◽  
Chao Shen ◽  
Chao Zhang ◽  
James Iocozzia ◽  
Qi Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Hollow Spheres ◽  
High Capacity ◽  
Lithium Ion ◽  
Tio2 Hollow Spheres

A 3D porous honeycomb carbon as Na-ion battery anode material with high capacity, excellent rate performance, and robust stability

Carbon ◽  
2020 ◽  
Vol 168 ◽  
pp. 163-168 ◽  
Author(s):  
Wenyang Zhou ◽  
Huanhuan Xie ◽  
Shuo Wang ◽  
Qian Wang ◽  
Puru Jena
Keyword(s):  
Anode Material ◽  
Robust Stability ◽  
High Capacity ◽  
Rate Performance ◽  
Battery Anode

scholarly journals Synthesis of Nanocobalt Powders for an Anode Material of Lithium-Ion Batteries by Chemical Reduction and Carbon Coating

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Seong-Hyeon Hong ◽  
Yeong-Mi Jin ◽  
Kyung Tae Kim ◽  
Cheol-Woo Ahn ◽  
Dong-Su Park ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Anode Material ◽  
Carbon Coating ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Chemical Reduction Method ◽  
The Third ◽  
Carbon Coated

Nanosized Co powders were prepared by a chemical reduction method with and without CTAB (cetyltrimethylammonium bromide,C19H42BrN) and carbon-coating heat treatment at 700°C for 1 h, and the electrochemical properties of the prepared nanosized Co powders were examined to evaluate their suitability as an anode material of Li-ion batteries. Nanosized amorphous Co-based powders could be synthesized by a chemical reduction method in which a reducing agent is added to a Co ion-dissolved aqueous solution. When the prepared nanosized Co-based powders were subjected to carbon-coating heat treatment at 700°C for 1 h, the amorphous phase was crystallized, and a Co single phase could be obtained. The Co-based powder prepared by chemical reduction with CTAB and carbon-coating heat treatment had a smaller first discharge capacity (about 557 mAh/g) than the Co-based powder prepared by chemical reduction without CTAB and carbon-coating heat treatment (about 628 mAh/g). However, the former had a better cycling performance than the latter from the third cycle. The carbon-coated layers are believed to have led to quite good cycling performances of the prepared Co-based powders from the third cycle.

Sulfurization synthesis of a new anode material for Li-ion batteries: understanding the role of sulfurization in lithium ion conversion reactions and promoting lithium storage performance

2019 ◽  
Vol 7 (37) ◽  
pp. 21270-21279 ◽  
Author(s):  
Yanmin Qin ◽  
Zhongqing Jiang ◽  
Liping Guo ◽  
Jianlin Huang ◽  
Zhong-Jie Jiang ◽  
...  
Keyword(s):  
Anode Material ◽  
High Capacity ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Lithium Storage ◽  
Storage Performance ◽  
Carbon Coated ◽  
Li Ion ◽  
Good Cycling Stability

N, S co-doped carbon coated MnOS (MnOS@NSC) has been demonstrated to be a potential anode material for LIBs with high capacity, good cycling stability and excellent rate performance.

Structure and electrochemical properties of C-coated Li2O–V2O5–P2O5 glass-ceramic as cathode material for lithium-ion batteries

2019 ◽  
Vol 12 (05) ◽  
pp. 1951002 ◽  
Author(s):  
Jingwei Li ◽  
Shixi Zhao ◽  
Xia Wu ◽  
Lüqiang Yu ◽  
Enlai Zhao ◽  
...  
Keyword(s):  
Glass Ceramic ◽  
Cathode Materials ◽  
Carbon Coating ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Rate Performance ◽  
Capacity Retention ◽  
Ceramic Structure ◽  
Carbon Coated ◽  
Quenching Method

A series of glass cathode materials [Formula: see text]Li2O–50V2O5–(50−[Formula: see text])P2O5 ([Formula: see text], 25, 30, 35 and 40) have been synthesized by a simple melting–quenching method. 30Li2O–50V2O5–20P2O5 glass (LVP30) shows the best cycling performance with a preferable capacity retention after 50 cycles. Then, we prepared a series of carbon-coated LVP30 glass-ceramic cathode materials by carbon coating and heat treatment. The carbon-coated LVP30 samples consist of the crystalline phase V2O3, VO2 and Li2O–V2O5–P2O5 glass. Among the carbon-coated LVP30 samples, LVP30-15C sample exhibits the best cycling and rate performance. It can retain a discharge capacity of 140[Formula: see text]mAh[Formula: see text]g[Formula: see text] after 100 cycles. This unique glass-ceramic structure can result in good conductivity and structural ductility.

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