High lithium ion battery performance enhancement by controlled carbon coating of TiO2 hierarchically porous hollow spheres

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 70485-70492 ◽  
Author(s):  
Jun Jin ◽  
Xiao-Ning Ren ◽  
Yi Lu ◽  
Xian-Feng Zheng ◽  
Hong-En Wang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Carbon Coating ◽  
Performance Enhancement ◽  
Hollow Spheres ◽  
Hollow Structure ◽  
Lithium Ion ◽  
Carbon Layer ◽  
Lithium Storage ◽  
Hierarchically Porous ◽  
Carbon Hollow Spheres

Hierarchical TiO2/carbon hollow spheres have been designed and prepared for enhanced lithium storage due to the synergy of the hollow structure, carbon layer and newly formed numerous ∼5 nm Li2Ti2O4 on the surface of the TiO2 nanocrystals.

Electrochemical Performance of Hollow α-Fe2O3 Spheres as Anode Material for Lithium-ion Battery

2011 ◽  
Vol 15 (1) ◽  
pp. 1-4
Author(s):  
Zhijia Du ◽  
Shichao Zhang ◽  
Zhiming Bai ◽  
Tao Jiang ◽  
Guanrao Liu
Keyword(s):  
Electron Microscopy ◽  
Lithium Ion Battery ◽  
Anode Material ◽  
Retention Rate ◽  
Hollow Spheres ◽  
Hollow Structure ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Lithium Storage ◽  
Ion Migration

α-Fe2O3 spheres were synthesized by a facile hydrothermal method followed by a calcination step. The crystalline structure and morphology of the synthesized materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The morphology of the sample consisted of porous hollow spheres that ranged about hundreds of nanometers and were composed of well crystallized nanoparticles about a dozen nm. The electrochemical properties of the sample were evaluated by cyclic voltammetry (CV) and charge/discharge measurements. The discharge/charge capacities in the first cycle achieved 1336/934 mAh g-1 at the rate of 0.2 C. The reversible capacity in the 50th cycle remained 840 mAh g-1 with impressive retention rate of 90%. This good lithium storage property was probably ascribed to the porous and hollow structure and nanoscale α-Fe2O3 particles, which enlarged the surface area and shortened the pathway for lithium ion migration. The appealing electrochemical capability indicated the potential implementation of hollow Fe2O3 spheres as anode material for future lithium-ion battery.

Two-dimensional MoN@N-doped carbon hollow spheres as an anode material for high performance lithium-ion battery

2019 ◽  
Vol 295 ◽  
pp. 246-252 ◽  
Author(s):  
Jianbiao Wang ◽  
Chengyu Yang ◽  
Jingjing Wang ◽  
Lijing Han ◽  
Mingdeng Wei
Keyword(s):  
Lithium Ion Battery ◽  
Anode Material ◽  
High Performance ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Two Dimensional ◽  
Carbon Hollow Spheres

Dual carbon layer hybridized mesoporous tin hollow spheres for fast-rechargeable and highly-stable lithium-ion battery anodes

2017 ◽  
Vol 5 (27) ◽  
pp. 14422-14429 ◽  
Author(s):  
Weili An ◽  
Jijiang Fu ◽  
Shixiong Mei ◽  
Lu Xia ◽  
Xingxing Li ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Carbon Layer ◽  
Sn Nanoparticle

Dual carbon layers effectively enhance the electrochemical performance of ultrasmall Sn nanoparticle assembled hollow spheres.

Porous Fe3O4 hollow spheres with chlorine-doped-carbon coating as superior anode materials for lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (65) ◽  
pp. 52993-52997 ◽  
Author(s):  
Hongbo Geng ◽  
Shuangshuang Li ◽  
Yue Pan ◽  
Yonggang Yang ◽  
Junwei Zheng ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Carbon Coating ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Lithium Storage ◽  
High Reversible Capacity ◽  
Storage Performance

The PH-Fe3O4@C/Cl spheres were successfully fabricated through a novel and controllable route, which could deliver superior lithium storage performance in terms of high reversible capacity, stable cycling and rate performances.

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 The Carbon-Coated ZnCo2O4 Nanowire Arrays Pyrolyzed from PVA for Enhancing Lithium Storage Capacity

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1501
Author(s):  
Wenjia Zhao ◽  
Zhaoping Shi ◽  
Yongbing Qi ◽  
Jipeng Cheng
Keyword(s):  
Carbon Coating ◽  
Nanowire Array ◽  
Lithium Ion ◽  
Carbon Layer ◽  
Nanowire Arrays ◽  
The Novel ◽  
Lithium Storage ◽  
Coating Method ◽  
Carbon Coated ◽  
Binder Free

In this paper, ZnCo2O4 nanowire arrays with a uniform carbon coating were introduced when polyvinyl alcohol (PVA) served as the carbon source. The coating process was completed by a facile bath method in PVA aqueous solution and subsequent pyrolyzation. The PVA-derived carbon-coated ZnCo2O4 nanowire array composites can be used directly as the binder-free and self-supported anode materials for lithium-ion batteries. In the carbon-coated ZnCo2O4 composites, the carbon layer carbonized from PVA can accelerate the electron transfer and accommodate the volume swing during the cycling process. The lithium storage properties of the carbon-coated ZnCo2O4 composites are investigated. It is believed that the novel carbon-coating method is universal and can be applied to other nanoarray materials.

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