VO2(B)/graphene forest for high-rate Li-ion battery

Guofeng Ren; Zhaoyang Fan

doi:10.1557/opl.2015.536

VO₂(B)/graphene forest for high-rate Li-ion battery

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

2D nanomaterials, when assembled into an ordered macrostructure, will present many great opportunities, including for Li-ion batteries (LIBs). We report densely-packed vertically-aligned V02(B) nanobelts (NBs)-based forest structure synthesized on edge-oriented graphene (EOG) network Using a EOG/Ni foam as a 3D scaffold, aligned VO₂(B) NBs can be further synthesized into a folded 3D forest structure to construct a freestanding electrode for LIBs. Electrochemical studies found that such a freestanding V02(B)/EOG electrode, which combines the unique merits of 2D V02(B) NBs and 2D graphene sheets, has excellent charge-discharge rate performance. A discharge capacity of 178 mAh g^-1 at a rate of 59 C and 100 mAh g^-1 at 300 C was measured. A good charge-discharge cycling stability under a high current density was also demonstrated. The results indicate V02(B)/EOG forest based freestanding electrode is very promising for developing high-rate LIBs.

Original language	English (US)
Title of host publication	Next Generation Electrochemical Energy Storage and Conversion Systems - Synthesis, Processing, Characterization and Manufacturing
Editors	Harun Tuysuz, Candace K. Chan, Anne Co, Hui Xiong
Publisher	Materials Research Society
Pages	7-14
Number of pages	8
ISBN (Electronic)	9781510826281
DOIs	https://doi.org/10.1557/opl.2015.536
State	Published - 2015
Externally published	Yes
Event	2015 MRS Spring Meeting - San Francisco, United States Duration: Apr 6 2015 → Apr 10 2015

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1773
ISSN (Print)	0272-9172

Other

Other	2015 MRS Spring Meeting
Country/Territory	United States
City	San Francisco
Period	4/6/15 → 4/10/15

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1557/opl.2015.536

Cite this

Ren, G., & Fan, Z. (2015). VO₂(B)/graphene forest for high-rate Li-ion battery. In H. Tuysuz, C. K. Chan, A. Co, & H. Xiong (Eds.), Next Generation Electrochemical Energy Storage and Conversion Systems - Synthesis, Processing, Characterization and Manufacturing (pp. 7-14). (Materials Research Society Symposium Proceedings; Vol. 1773). Materials Research Society. https://doi.org/10.1557/opl.2015.536

VO₂(B)/graphene forest for high-rate Li-ion battery. / Ren, Guofeng; Fan, Zhaoyang.

Next Generation Electrochemical Energy Storage and Conversion Systems - Synthesis, Processing, Characterization and Manufacturing. ed. / Harun Tuysuz; Candace K. Chan; Anne Co; Hui Xiong. Materials Research Society, 2015. p. 7-14 (Materials Research Society Symposium Proceedings; Vol. 1773).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ren, G & Fan, Z 2015, VO₂(B)/graphene forest for high-rate Li-ion battery. in H Tuysuz, CK Chan, A Co & H Xiong (eds), Next Generation Electrochemical Energy Storage and Conversion Systems - Synthesis, Processing, Characterization and Manufacturing. Materials Research Society Symposium Proceedings, vol. 1773, Materials Research Society, pp. 7-14, 2015 MRS Spring Meeting, San Francisco, United States, 4/6/15. https://doi.org/10.1557/opl.2015.536

Ren, Guofeng ; Fan, Zhaoyang. / VO₂(B)/graphene forest for high-rate Li-ion battery. Next Generation Electrochemical Energy Storage and Conversion Systems - Synthesis, Processing, Characterization and Manufacturing. editor / Harun Tuysuz ; Candace K. Chan ; Anne Co ; Hui Xiong. Materials Research Society, 2015. pp. 7-14 (Materials Research Society Symposium Proceedings).

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abstract = "2D nanomaterials, when assembled into an ordered macrostructure, will present many great opportunities, including for Li-ion batteries (LIBs). We report densely-packed vertically-aligned V02(B) nanobelts (NBs)-based forest structure synthesized on edge-oriented graphene (EOG) network Using a EOG/Ni foam as a 3D scaffold, aligned VO2(B) NBs can be further synthesized into a folded 3D forest structure to construct a freestanding electrode for LIBs. Electrochemical studies found that such a freestanding V02(B)/EOG electrode, which combines the unique merits of 2D V02(B) NBs and 2D graphene sheets, has excellent charge-discharge rate performance. A discharge capacity of 178 mAh g-1 at a rate of 59 C and 100 mAh g-1 at 300 C was measured. A good charge-discharge cycling stability under a high current density was also demonstrated. The results indicate V02(B)/EOG forest based freestanding electrode is very promising for developing high-rate LIBs.",

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