Spherical Li(4)Ti(5)O(12)/NiO Composite With Enhanced Capacity and Rate Performance as Anode Material for Lithium-Ion Batteries

Compositing with metal oxides is proved to be an efficient strategy to improve electrochemical performance of anode material Li(4)Ti(5)O(12) for lithium-ion batteries. Herein, spherical Li(4)Ti(5)O(12)/NiO composite powders have been successfully prepared via a spray drying method. X-ray diffraction...

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Autores principales: Liu, Jiequn, Zhong, Shengkui, Chen, Qingrong, Meng, Luchao, Wang, Qianyi, Liao, Zhijian, Zhou, Jian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770102/
https://www.ncbi.nlm.nih.gov/pubmed/33384983
http://dx.doi.org/10.3389/fchem.2020.626388
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author Liu, Jiequn
Zhong, Shengkui
Chen, Qingrong
Meng, Luchao
Wang, Qianyi
Liao, Zhijian
Zhou, Jian
author_facet Liu, Jiequn
Zhong, Shengkui
Chen, Qingrong
Meng, Luchao
Wang, Qianyi
Liao, Zhijian
Zhou, Jian
author_sort Liu, Jiequn
collection PubMed
description Compositing with metal oxides is proved to be an efficient strategy to improve electrochemical performance of anode material Li(4)Ti(5)O(12) for lithium-ion batteries. Herein, spherical Li(4)Ti(5)O(12)/NiO composite powders have been successfully prepared via a spray drying method. X-ray diffraction and high-resolution transmission electron microscopy results demonstrate that crystal structure of the powders is spinel. Scanning electron microscopy results show that NiO uniformly distributes throughout Li(4)Ti(5)O(12) matrix. It is found that compositing with NiO increases both discharge platform capacity and rate stability of Li(4)Ti(5)O(12). The as-prepared Li(4)Ti(5)O(12)/NiO (5%) exhibits a high initial discharge capacity of 381.3 mAh g(−1) at 0.1 C, and a discharge capacity of 194.7 mAh g(−1) at an ultrahigh rate of 20 C.
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spelling pubmed-77701022020-12-30 Spherical Li(4)Ti(5)O(12)/NiO Composite With Enhanced Capacity and Rate Performance as Anode Material for Lithium-Ion Batteries Liu, Jiequn Zhong, Shengkui Chen, Qingrong Meng, Luchao Wang, Qianyi Liao, Zhijian Zhou, Jian Front Chem Chemistry Compositing with metal oxides is proved to be an efficient strategy to improve electrochemical performance of anode material Li(4)Ti(5)O(12) for lithium-ion batteries. Herein, spherical Li(4)Ti(5)O(12)/NiO composite powders have been successfully prepared via a spray drying method. X-ray diffraction and high-resolution transmission electron microscopy results demonstrate that crystal structure of the powders is spinel. Scanning electron microscopy results show that NiO uniformly distributes throughout Li(4)Ti(5)O(12) matrix. It is found that compositing with NiO increases both discharge platform capacity and rate stability of Li(4)Ti(5)O(12). The as-prepared Li(4)Ti(5)O(12)/NiO (5%) exhibits a high initial discharge capacity of 381.3 mAh g(−1) at 0.1 C, and a discharge capacity of 194.7 mAh g(−1) at an ultrahigh rate of 20 C. Frontiers Media S.A. 2020-12-15 /pmc/articles/PMC7770102/ /pubmed/33384983 http://dx.doi.org/10.3389/fchem.2020.626388 Text en Copyright © 2020 Liu, Zhong, Chen, Meng, Wang, Liao and Zhou. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Liu, Jiequn
Zhong, Shengkui
Chen, Qingrong
Meng, Luchao
Wang, Qianyi
Liao, Zhijian
Zhou, Jian
Spherical Li(4)Ti(5)O(12)/NiO Composite With Enhanced Capacity and Rate Performance as Anode Material for Lithium-Ion Batteries
title Spherical Li(4)Ti(5)O(12)/NiO Composite With Enhanced Capacity and Rate Performance as Anode Material for Lithium-Ion Batteries
title_full Spherical Li(4)Ti(5)O(12)/NiO Composite With Enhanced Capacity and Rate Performance as Anode Material for Lithium-Ion Batteries
title_fullStr Spherical Li(4)Ti(5)O(12)/NiO Composite With Enhanced Capacity and Rate Performance as Anode Material for Lithium-Ion Batteries
title_full_unstemmed Spherical Li(4)Ti(5)O(12)/NiO Composite With Enhanced Capacity and Rate Performance as Anode Material for Lithium-Ion Batteries
title_short Spherical Li(4)Ti(5)O(12)/NiO Composite With Enhanced Capacity and Rate Performance as Anode Material for Lithium-Ion Batteries
title_sort spherical li(4)ti(5)o(12)/nio composite with enhanced capacity and rate performance as anode material for lithium-ion batteries
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770102/
https://www.ncbi.nlm.nih.gov/pubmed/33384983
http://dx.doi.org/10.3389/fchem.2020.626388
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