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Synthesis of micro/nanostructured Co9S8 cubes and spheres as high performance anodes for lithium ion batteries

Synthesis of micro/nanostructured Co9S8 cubes and spheres as high performance anodes for lithium ion batteries
Synthesis of micro/nanostructured Co9S8 cubes and spheres as high performance anodes for lithium ion batteries
Micro/nanostructured Co9S8 cubes and spheres (S-Co9S8) were successfully prepared with Co3O4 as templates via the vapor-based anion exchange reaction. The morphology and structure of both materials were characterized by SEM and XRD. Co9S8 microcubes and microspheres were composed of nanoparticles, inheriting the micro/nanostructure of Co3O4 precursors. Tested in lithium ion batteries, C-Co9S8 and S-Co9S8 anodes exhibited high specific capacities, excellent cycle stability (C-Co9S8: 369 mAh g−1, S-Co9S8: 370 mAh g−1 over 300 cycles at 1C) and high rate performances (C-Co9S8: 450 mAh g−1, S-Co9S8: ∼430 mAh g−1 at 5C).
0013-4686
299-307
Wang, Yunhui
69c7f91c-41aa-401a-85d6-8b1e6bdf4f0b
Wu, Bihe
66f07fe0-fbef-4939-8479-a277e4851e6b
He, Xinyi
dade6512-1a04-49f3-a007-8ef0a16b0082
Zhang, Yiyong
71a75c8c-9182-4826-88ae-a1c7a6e69a38
Li, He
1d46f87c-8509-43b9-9ee5-eb1065c4de0f
Peng, Yueying
564b4cb8-9f1d-439e-97d5-bc1a60f582b2
Wang, Jing
59195292-fa4f-485c-bdd7-13f44ed4fb11
Zhao, Jinbao
aced081b-6c5d-4b07-9f13-cf77bcc8e3bf
Wang, Yunhui
69c7f91c-41aa-401a-85d6-8b1e6bdf4f0b
Wu, Bihe
66f07fe0-fbef-4939-8479-a277e4851e6b
He, Xinyi
dade6512-1a04-49f3-a007-8ef0a16b0082
Zhang, Yiyong
71a75c8c-9182-4826-88ae-a1c7a6e69a38
Li, He
1d46f87c-8509-43b9-9ee5-eb1065c4de0f
Peng, Yueying
564b4cb8-9f1d-439e-97d5-bc1a60f582b2
Wang, Jing
59195292-fa4f-485c-bdd7-13f44ed4fb11
Zhao, Jinbao
aced081b-6c5d-4b07-9f13-cf77bcc8e3bf

Wang, Yunhui, Wu, Bihe, He, Xinyi, Zhang, Yiyong, Li, He, Peng, Yueying, Wang, Jing and Zhao, Jinbao (2017) Synthesis of micro/nanostructured Co9S8 cubes and spheres as high performance anodes for lithium ion batteries. Electrochimica Acta, 230, 299-307. (doi:10.1016/j.electacta.2017.01.122).

Record type: Article

Abstract

Micro/nanostructured Co9S8 cubes and spheres (S-Co9S8) were successfully prepared with Co3O4 as templates via the vapor-based anion exchange reaction. The morphology and structure of both materials were characterized by SEM and XRD. Co9S8 microcubes and microspheres were composed of nanoparticles, inheriting the micro/nanostructure of Co3O4 precursors. Tested in lithium ion batteries, C-Co9S8 and S-Co9S8 anodes exhibited high specific capacities, excellent cycle stability (C-Co9S8: 369 mAh g−1, S-Co9S8: 370 mAh g−1 over 300 cycles at 1C) and high rate performances (C-Co9S8: 450 mAh g−1, S-Co9S8: ∼430 mAh g−1 at 5C).

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e-pub ahead of print date: 28 January 2017
Published date: 10 March 2017

Identifiers

Local EPrints ID: 424313
URI: http://eprints.soton.ac.uk/id/eprint/424313
ISSN: 0013-4686
PURE UUID: d2bd07d1-7725-4ac6-8928-c7de741c36ff

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Date deposited: 05 Oct 2018 11:36
Last modified: 15 Mar 2024 21:32

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Contributors

Author: Yunhui Wang
Author: Bihe Wu
Author: Xinyi He
Author: Yiyong Zhang
Author: He Li ORCID iD
Author: Yueying Peng
Author: Jing Wang
Author: Jinbao Zhao

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