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Title: High-rate and long-life lithium-ion battery performance of hierarchically hollow-structured NiCo 2O 4/CNT nanocomposite

Abstract

In this paper, 3D-transition binary metal oxides have been considered as promising anode materials for lithium-ion batteries with improved reversible capacity, structural stability and electronic conductivity compared with single metal oxides. Here, carbon nanotube supported NiCo 2O 4 nanoparticles (NiCo 2O 4/CNT) with 3D hierarchical hollow structure are fabricated via a simple one-pot method. The NiCo 2O 4 nanoparticles with interconnected pores are consists of small nanocrystals. When used as anode material for the lithium-ion battery, NiCo 2O 4/CNT exhibits enhanced electrochemical performance than that of Co 3O 4/CNT and NiO/CNT. Moreover, ultra-high discharge/charge stability was obtained for 4000 cycles at a current density of 5 A g –1. The superior battery performance of NiCo 2O 4 nanoparticles is probably attributed to the special structural features and physical characteristics, including integrity, hollow structure with interconnected pores, which providing sufficient accommodation for the volume change during charge/discharge process. Besides, the consisting of ultra-small crystals enhanced the utility of active material, and intimate interaction with CNTs improved the electron-transfer rate.

Authors:
 [1];  [1];  [1];  [2];  [1];  [3];  [1]
  1. Huazhong Univ. of Science and Technology, Wuhan (People's Republic of China)
  2. Tianjin Univ., Tianjin (People's Republic of China)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1409513
Alternate Identifier(s):
OSTI ID: 1416047
Report Number(s):
BNL-114565-2017-JA
Journal ID: ISSN 0013-4686; R&D Project: 16060; 16060; KC0403020
Grant/Contract Number:
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Electrochimica Acta
Additional Journal Information:
Journal Volume: 244; Journal Issue: C; Journal ID: ISSN 0013-4686
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Center for Functional Nanomaterials; NiCo2O4 nanoparticles; Hierarchical hollow structure; interconnected pores; lithium storage; long-life stability

Citation Formats

Wang, Jie, Wu, Jianzhong, Wu, Zexing, Han, Lili, Huang, Ting, Xin, Huolin L., and Wang, Deli. High-rate and long-life lithium-ion battery performance of hierarchically hollow-structured NiCo2O4/CNT nanocomposite. United States: N. p., 2017. Web. doi:10.1016/j.electacta.2017.05.092.
Wang, Jie, Wu, Jianzhong, Wu, Zexing, Han, Lili, Huang, Ting, Xin, Huolin L., & Wang, Deli. High-rate and long-life lithium-ion battery performance of hierarchically hollow-structured NiCo2O4/CNT nanocomposite. United States. doi:10.1016/j.electacta.2017.05.092.
Wang, Jie, Wu, Jianzhong, Wu, Zexing, Han, Lili, Huang, Ting, Xin, Huolin L., and Wang, Deli. Wed . "High-rate and long-life lithium-ion battery performance of hierarchically hollow-structured NiCo2O4/CNT nanocomposite". United States. doi:10.1016/j.electacta.2017.05.092. https://www.osti.gov/servlets/purl/1409513.
@article{osti_1409513,
title = {High-rate and long-life lithium-ion battery performance of hierarchically hollow-structured NiCo2O4/CNT nanocomposite},
author = {Wang, Jie and Wu, Jianzhong and Wu, Zexing and Han, Lili and Huang, Ting and Xin, Huolin L. and Wang, Deli},
abstractNote = {In this paper, 3D-transition binary metal oxides have been considered as promising anode materials for lithium-ion batteries with improved reversible capacity, structural stability and electronic conductivity compared with single metal oxides. Here, carbon nanotube supported NiCo2O4 nanoparticles (NiCo2O4/CNT) with 3D hierarchical hollow structure are fabricated via a simple one-pot method. The NiCo2O4 nanoparticles with interconnected pores are consists of small nanocrystals. When used as anode material for the lithium-ion battery, NiCo2O4/CNT exhibits enhanced electrochemical performance than that of Co3O4/CNT and NiO/CNT. Moreover, ultra-high discharge/charge stability was obtained for 4000 cycles at a current density of 5 A g–1. The superior battery performance of NiCo2O4 nanoparticles is probably attributed to the special structural features and physical characteristics, including integrity, hollow structure with interconnected pores, which providing sufficient accommodation for the volume change during charge/discharge process. Besides, the consisting of ultra-small crystals enhanced the utility of active material, and intimate interaction with CNTs improved the electron-transfer rate.},
doi = {10.1016/j.electacta.2017.05.092},
journal = {Electrochimica Acta},
number = C,
volume = 244,
place = {United States},
year = {Wed May 17 00:00:00 EDT 2017},
month = {Wed May 17 00:00:00 EDT 2017}
}

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