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Thermal conductivity of V2O5 nanowires and their contact thermal conductance

Qilang Wang,   Xin Liang,   Bohai Liu,   Yihui Song,   Guohua Gao  and  Xiangfan XU  

Abstract

Vanadium pentoxide (V2O5) based composites show outstanding performance as the cathode materials in Lithium ion batteries. Yet the inferior thermal conductivity restricted the heat dissipation through the cathode electrode. In this paper, we measured the thermal conductivity of V2O5 nanowires by using the thermal bridge method and found that the thermal conductivity is 3.84±0.38 W m-1 K-1 at T =300 K. The contact thermal resistance between two nanowires with the same size was measured to reach up to 50%-80% of the total thermal resistance in the measured samples, indicating that the contact is the bottleneck for thermal dissipation.

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Publication details

The article was received on 14 Oct 2019, accepted on 03 Dec 2019 and first published on 03 Dec 2019


Article type: Paper
DOI: 10.1039/C9NR08803B
Nanoscale, 2019, Accepted Manuscript

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    Thermal conductivity of V2O5 nanowires and their contact thermal conductance

    Q. Wang, X. Liang, B. Liu, Y. Song, G. Gao and X. XU, Nanoscale, 2019, Accepted Manuscript , DOI: 10.1039/C9NR08803B

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