Grain Boundaries Enriched Hierarchically Mesoporous MnO/Carbon Microspheres for Superior Lithium Ion Battery Anode

Shao Zhuan Huang, Qian Zhang, Wenbei Yu, Xiao Yu Yang, Chao Wang, Yu Li, Bao Lian Su

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

To develop high-performance anode materials of lithium ion batteries (LIBs) for practical high energy application, a grain boundaries enriched hierarchically mesoporous MnO/C microsphere composite has been fabricated by an in-situ carbonization process. The mesoporous MnO/C microsphere is constructed by abundant grains and grain boundaries that are uniformly embedded in a carbon matrix. Such unique nanoarchitecture exhibits high tap density and structural stability, and provides 3D continuous transport pathways for electrons and Li-ions, enabling high electrochemical stability and improved lithium storage kinetics. As a consequence, the mesoporous MnO/C electrode delivers ever-increasing specific capacity (1200 mAh g−1 after 100 cycles at 100 mA g−1) and excellent rate capability (588 mAh g−1 at 2 A g−1). Such superior lithium storage performance suggests that the hierarchically mesoporous MnO/C microsphere electrode should be one of the most promising anode materials for electric vehicle and grid energy storage application.

langue originaleAnglais
Pages (de - à)561-569
Nombre de pages9
journalElectrochimica Acta
Volume222
Les DOIs
étatPublié - 20 déc. 2016

Empreinte digitale

Microspheres
Anodes
Grain boundaries
Carbon
Lithium
Electrodes
Carbonization
Electric vehicles
Energy storage
Ions
Kinetics
Electrons
Composite materials
Lithium-ion batteries

Citer ceci

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title = "Grain Boundaries Enriched Hierarchically Mesoporous MnO/Carbon Microspheres for Superior Lithium Ion Battery Anode",
abstract = "To develop high-performance anode materials of lithium ion batteries (LIBs) for practical high energy application, a grain boundaries enriched hierarchically mesoporous MnO/C microsphere composite has been fabricated by an in-situ carbonization process. The mesoporous MnO/C microsphere is constructed by abundant grains and grain boundaries that are uniformly embedded in a carbon matrix. Such unique nanoarchitecture exhibits high tap density and structural stability, and provides 3D continuous transport pathways for electrons and Li-ions, enabling high electrochemical stability and improved lithium storage kinetics. As a consequence, the mesoporous MnO/C electrode delivers ever-increasing specific capacity (1200 mAh g−1 after 100 cycles at 100 mA g−1) and excellent rate capability (588 mAh g−1 at 2 A g−1). Such superior lithium storage performance suggests that the hierarchically mesoporous MnO/C microsphere electrode should be one of the most promising anode materials for electric vehicle and grid energy storage application.",
keywords = "grain boundary, hierarchically mesoporous microsphere, In-situ carbonization, lithium ion battery, MnO/C composite",
author = "Huang, {Shao Zhuan} and Qian Zhang and Wenbei Yu and Yang, {Xiao Yu} and Chao Wang and Yu Li and Su, {Bao Lian}",
year = "2016",
month = "12",
day = "20",
doi = "10.1016/j.electacta.2016.11.009",
language = "English",
volume = "222",
pages = "561--569",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",

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Grain Boundaries Enriched Hierarchically Mesoporous MnO/Carbon Microspheres for Superior Lithium Ion Battery Anode. / Huang, Shao Zhuan; Zhang, Qian; Yu, Wenbei; Yang, Xiao Yu; Wang, Chao; Li, Yu; Su, Bao Lian.

Dans: Electrochimica Acta, Vol 222, 20.12.2016, p. 561-569.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Grain Boundaries Enriched Hierarchically Mesoporous MnO/Carbon Microspheres for Superior Lithium Ion Battery Anode

AU - Huang, Shao Zhuan

AU - Zhang, Qian

AU - Yu, Wenbei

AU - Yang, Xiao Yu

AU - Wang, Chao

AU - Li, Yu

AU - Su, Bao Lian

PY - 2016/12/20

Y1 - 2016/12/20

N2 - To develop high-performance anode materials of lithium ion batteries (LIBs) for practical high energy application, a grain boundaries enriched hierarchically mesoporous MnO/C microsphere composite has been fabricated by an in-situ carbonization process. The mesoporous MnO/C microsphere is constructed by abundant grains and grain boundaries that are uniformly embedded in a carbon matrix. Such unique nanoarchitecture exhibits high tap density and structural stability, and provides 3D continuous transport pathways for electrons and Li-ions, enabling high electrochemical stability and improved lithium storage kinetics. As a consequence, the mesoporous MnO/C electrode delivers ever-increasing specific capacity (1200 mAh g−1 after 100 cycles at 100 mA g−1) and excellent rate capability (588 mAh g−1 at 2 A g−1). Such superior lithium storage performance suggests that the hierarchically mesoporous MnO/C microsphere electrode should be one of the most promising anode materials for electric vehicle and grid energy storage application.

AB - To develop high-performance anode materials of lithium ion batteries (LIBs) for practical high energy application, a grain boundaries enriched hierarchically mesoporous MnO/C microsphere composite has been fabricated by an in-situ carbonization process. The mesoporous MnO/C microsphere is constructed by abundant grains and grain boundaries that are uniformly embedded in a carbon matrix. Such unique nanoarchitecture exhibits high tap density and structural stability, and provides 3D continuous transport pathways for electrons and Li-ions, enabling high electrochemical stability and improved lithium storage kinetics. As a consequence, the mesoporous MnO/C electrode delivers ever-increasing specific capacity (1200 mAh g−1 after 100 cycles at 100 mA g−1) and excellent rate capability (588 mAh g−1 at 2 A g−1). Such superior lithium storage performance suggests that the hierarchically mesoporous MnO/C microsphere electrode should be one of the most promising anode materials for electric vehicle and grid energy storage application.

KW - grain boundary

KW - hierarchically mesoporous microsphere

KW - In-situ carbonization

KW - lithium ion battery

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