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.

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.

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...

Binder-free Co–CoOx nanowire arrays for lithium ion batteries with excellent rate capability and ultra-long cycle life

2015 ◽  
Vol 3 (39) ◽  
pp. 19711-19717 ◽  
Author(s):  
Liang Zhan ◽  
Suqing Wang ◽  
Liang-Xin Ding ◽  
Zhong Li ◽  
Haihui Wang
Keyword(s):  
Lithium Ion Batteries ◽  
Nanowire Array ◽  
Rate Capability ◽  
Lithium Ion ◽  
Nanowire Arrays ◽  
Cycle Life ◽  
Cycle Stability ◽  
Long Cycle Life ◽  
Array Electrode ◽  
Binder Free

The introduction of metallic Co into the CoOx nanowire array greatly improves the cycle stability and rate capability of the array electrode.

Electrochemical Properties of Carbon-Coated NbO2 as a Negative Electrode for Lithium-Ion Batteries

2016 ◽  
Vol 724 ◽  
pp. 87-91 ◽  
Author(s):  
Chang Su Kim ◽  
Yong Hoon Cho ◽  
Kyoung Soo Park ◽  
Soon Ki Jeong ◽  
Yang Soo Kim
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Ball Milling ◽  
Carbon Coating ◽  
Electrochemical Impedance ◽  
Active Material ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Transfer Resistance ◽  
Carbon Coated

We investigated the electrochemical properties of carbon-coated niobium dioxide (NbO2) as a negative electrode material for lithium-ion batteries. Carbon-coated NbO2 powders were synthesized by ball-milling using carbon nanotubes as the carbon source. The carbon-coated NbO2 samples were of smaller particle size compared to the pristine NbO2 samples. The carbon layers were coated non-uniformly on the NbO2 surface. The X-ray diffraction patterns confirmed that the inter-layer distances increased after carbon coating by ball-milling. This lead to decreased charge-transfer resistance, confirmed by electrochemical impedance spectroscopy, allowing electrons and lithium-ions to quickly transfer between the active material and electrolyte. Electrochemical performance, including capacity and initial coulombic efficiency, was therefore improved by carbon coating by ball-milling.

In situ synthesis of Cu2O–CuO–C supported on copper foam as a superior binder-free anode for long-cycle lithium-ion batteries

2018 ◽  
Vol 2 (12) ◽  
pp. 2254-2262 ◽  
Author(s):  
Xiaoming Lin ◽  
Jia Lin ◽  
Jiliang Niu ◽  
Jinji Lan ◽  
R. Chenna Krishna Reddy ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
In Situ Synthesis ◽  
Lithium Storage ◽  
Long Cycle ◽  
Copper Foam ◽  
Binder Free

A multicomponent active Cu2O–CuO–C composite supported on copper foam is fabricated and exhibits greatly enhanced performance for lithium storage.

Carbon-coated graphite for anode of lithium ion rechargeable batteries: Carbon coating conditions and precursors

2009 ◽  
Vol 194 (1) ◽  
pp. 486-493 ◽  
Author(s):  
Hidehiko Nozaki ◽  
Katsuhide Nagaoka ◽  
Kazuhito Hoshi ◽  
Naoto Ohta ◽  
Michio Inagaki
Keyword(s):  
Carbon Coating ◽  
Lithium Ion ◽  
Rechargeable Batteries ◽  
Carbon Coated

A hierarchical layering design for stable, self-restrained and high volumetric binder-free lithium storage

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21728-21732 ◽  
Author(s):  
Xinghao Zhang ◽  
Denghui Wang ◽  
Siyuan Zhang ◽  
Xianglong Li ◽  
Linjie Zhi
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Silicon Anodes ◽  
Volumetric Capacity ◽  
Volume Variation ◽  
Binder Free ◽  
Battery Anode

A hierarchical layering design of silicon anodes is developed, showing excellent reversibility, superior volumetric capacity, and limited electrode volume variation when being directly used as the lithium ion battery anode.

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