Binder-free V2O5 cathode for greener rechargeable aluminum battery

Huali Wang; Ying Bai; Shi Chen; Xiangyi Luo; Chuan Wu; Feng Wu; Jun Lu; Khalil Amine

doi:10.1021/am508001h

Binder-free V₂O₅ cathode for greener rechargeable aluminum battery

Huali Wang, Ying Bai, Shi Chen, Xiangyi Luo, Chuan Wu, Feng Wu, Jun Lu^*, Khalil Amine

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

289 Citations (Scopus)

Abstract

This letter reports on the investigation of a binder-free cathode material to be used in rechargeable aluminum batteries. This cathode is synthesized by directly depositing V₂O₅ on a Ni foam current collector. Rechargeable aluminum coin cells fabricated using the as-synthesized binder-free cathode delivered an initial discharge capacity of 239 mAh/g, which is much higher than that of batteries fabricated using a cathode composed of V₂O₅ nanowires and binder. An obvious discharge voltage plateau appeared at 0.6 V in the discharge curves of the Ni-V₂O₅ cathode, which is slightly higher than that of the V₂O₅ nanowire cathodes with common binders. This improvement is attributed to reduced electrochemical polarization.

Original language	English
Pages (from-to)	80-84
Number of pages	5
Journal	ACS applied materials & interfaces
Volume	7
Issue number	1
DOIs	https://doi.org/10.1021/am508001h
Publication status	Published - 14 Jan 2015

Keywords

PTFE binder
PVDF binder
VO cathode
aluminum battery
binder-free
ionic liquid electrolyte

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10.1021/am508001h

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title = "Binder-free V2O5 cathode for greener rechargeable aluminum battery",

abstract = "This letter reports on the investigation of a binder-free cathode material to be used in rechargeable aluminum batteries. This cathode is synthesized by directly depositing V2O5 on a Ni foam current collector. Rechargeable aluminum coin cells fabricated using the as-synthesized binder-free cathode delivered an initial discharge capacity of 239 mAh/g, which is much higher than that of batteries fabricated using a cathode composed of V2O5 nanowires and binder. An obvious discharge voltage plateau appeared at 0.6 V in the discharge curves of the Ni-V2O5 cathode, which is slightly higher than that of the V2O5 nanowire cathodes with common binders. This improvement is attributed to reduced electrochemical polarization.",

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AU - Wang, Huali

AU - Bai, Ying

AU - Chen, Shi

AU - Luo, Xiangyi

AU - Wu, Chuan

AU - Wu, Feng

AU - Lu, Jun

AU - Amine, Khalil

PY - 2015/1/14

Y1 - 2015/1/14

N2 - This letter reports on the investigation of a binder-free cathode material to be used in rechargeable aluminum batteries. This cathode is synthesized by directly depositing V2O5 on a Ni foam current collector. Rechargeable aluminum coin cells fabricated using the as-synthesized binder-free cathode delivered an initial discharge capacity of 239 mAh/g, which is much higher than that of batteries fabricated using a cathode composed of V2O5 nanowires and binder. An obvious discharge voltage plateau appeared at 0.6 V in the discharge curves of the Ni-V2O5 cathode, which is slightly higher than that of the V2O5 nanowire cathodes with common binders. This improvement is attributed to reduced electrochemical polarization.

AB - This letter reports on the investigation of a binder-free cathode material to be used in rechargeable aluminum batteries. This cathode is synthesized by directly depositing V2O5 on a Ni foam current collector. Rechargeable aluminum coin cells fabricated using the as-synthesized binder-free cathode delivered an initial discharge capacity of 239 mAh/g, which is much higher than that of batteries fabricated using a cathode composed of V2O5 nanowires and binder. An obvious discharge voltage plateau appeared at 0.6 V in the discharge curves of the Ni-V2O5 cathode, which is slightly higher than that of the V2O5 nanowire cathodes with common binders. This improvement is attributed to reduced electrochemical polarization.

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KW - PVDF binder

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KW - binder-free

KW - ionic liquid electrolyte

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Binder-free V₂O₅ cathode for greener rechargeable aluminum battery

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Keywords

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