A Photo-Assisted Chargeable Aqueous Zinc-Iodine Battery

Yanyan Man; Qingfei Hao; Fei Chen; Xiangtao Chen; Yanjun Wang; Tiangang Liu; Fei Liu; Na Li

doi:10.1002/celc.201901712

A Photo-Assisted Chargeable Aqueous Zinc-Iodine Battery

Yanyan Man
, Qingfei Hao
, Fei Chen
, Xiangtao Chen
, Yanjun Wang
, Tiangang Liu
, Fei Liu
, Na Li^*

^*Corresponding author for this work

Northeastern University China

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

43 Scopus citations

Abstract

Solar energy is an abundant and renewable energy resource, but it must be captured and stored for practical application in view of the intermittency and low-energy density. The search for an effective solar energy storage system is highly required, yet remains a challenge. In this paper, we design a novel solar energy storage device by integrating a TiO₂ photo-electrode into an aqueous zinc-iodine battery (ZIB). During charging process under illumination, I⁻ in catholyte is oxidized to I₃ ⁻ by photo-excited holes from TiO₂ photo-electrode. Meanwhile, the photo-excited electrons transfer to the anode through the external circuit and reduce the Zn²⁺ into Zn. Due to the compensation of photo-voltage, an ultralow charging voltage of 0.56 V is achieved, much lower than the discharging voltage (1.2 V), resulting in 54 % input electric energy savings.

Original language	English
Pages (from-to)	5872-5875
Number of pages	4
Journal	ChemElectroChem
Volume	6
Issue number	23
DOIs	https://doi.org/10.1002/celc.201901712
State	Published - 2 Dec 2019
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

photo-assisted chargeable battery
photoelectrochemistry
photovoltage
TiO semiconductor
zinc-iodine battery

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10.1002/celc.201901712

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title = "A Photo-Assisted Chargeable Aqueous Zinc-Iodine Battery",

abstract = "Solar energy is an abundant and renewable energy resource, but it must be captured and stored for practical application in view of the intermittency and low-energy density. The search for an effective solar energy storage system is highly required, yet remains a challenge. In this paper, we design a novel solar energy storage device by integrating a TiO2 photo-electrode into an aqueous zinc-iodine battery (ZIB). During charging process under illumination, I− in catholyte is oxidized to I3 − by photo-excited holes from TiO2 photo-electrode. Meanwhile, the photo-excited electrons transfer to the anode through the external circuit and reduce the Zn2+ into Zn. Due to the compensation of photo-voltage, an ultralow charging voltage of 0.56 V is achieved, much lower than the discharging voltage (1.2 V), resulting in 54 \% input electric energy savings.",

keywords = "photo-assisted chargeable battery, photoelectrochemistry, photovoltage, TiO semiconductor, zinc-iodine battery",

author = "Yanyan Man and Qingfei Hao and Fei Chen and Xiangtao Chen and Yanjun Wang and Tiangang Liu and Fei Liu and Na Li",

note = "Publisher Copyright: {\textcopyright} 2019 Wiley-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2019",

month = dec,

day = "2",

doi = "10.1002/celc.201901712",

language = "英语",

volume = "6",

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journal = "ChemElectroChem",

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T1 - A Photo-Assisted Chargeable Aqueous Zinc-Iodine Battery

AU - Man, Yanyan

AU - Hao, Qingfei

AU - Chen, Fei

AU - Chen, Xiangtao

AU - Wang, Yanjun

AU - Liu, Tiangang

AU - Liu, Fei

AU - Li, Na

PY - 2019/12/2

Y1 - 2019/12/2

N2 - Solar energy is an abundant and renewable energy resource, but it must be captured and stored for practical application in view of the intermittency and low-energy density. The search for an effective solar energy storage system is highly required, yet remains a challenge. In this paper, we design a novel solar energy storage device by integrating a TiO2 photo-electrode into an aqueous zinc-iodine battery (ZIB). During charging process under illumination, I− in catholyte is oxidized to I3 − by photo-excited holes from TiO2 photo-electrode. Meanwhile, the photo-excited electrons transfer to the anode through the external circuit and reduce the Zn2+ into Zn. Due to the compensation of photo-voltage, an ultralow charging voltage of 0.56 V is achieved, much lower than the discharging voltage (1.2 V), resulting in 54 % input electric energy savings.

AB - Solar energy is an abundant and renewable energy resource, but it must be captured and stored for practical application in view of the intermittency and low-energy density. The search for an effective solar energy storage system is highly required, yet remains a challenge. In this paper, we design a novel solar energy storage device by integrating a TiO2 photo-electrode into an aqueous zinc-iodine battery (ZIB). During charging process under illumination, I− in catholyte is oxidized to I3 − by photo-excited holes from TiO2 photo-electrode. Meanwhile, the photo-excited electrons transfer to the anode through the external circuit and reduce the Zn2+ into Zn. Due to the compensation of photo-voltage, an ultralow charging voltage of 0.56 V is achieved, much lower than the discharging voltage (1.2 V), resulting in 54 % input electric energy savings.

KW - photo-assisted chargeable battery

KW - photoelectrochemistry

KW - photovoltage

KW - TiO semiconductor

KW - zinc-iodine battery

UR - https://www.scopus.com/pages/publications/85076921534

U2 - 10.1002/celc.201901712

DO - 10.1002/celc.201901712

M3 - 文章

AN - SCOPUS:85076921534

SN - 2196-0216

VL - 6

SP - 5872

EP - 5875

JO - ChemElectroChem

JF - ChemElectroChem

IS - 23

ER -

A Photo-Assisted Chargeable Aqueous Zinc-Iodine Battery

Abstract

UN SDGs

Keywords

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