Quasi-Homogeneous Bromine Phase in Zinc-Bromine Batteries with Advanced Energy Efficiency and Energy Density

Jiaxiong ZHU; Qing LI; Ze CHEN; Pei LI; Hu HONG; Huilin CUI; Guojin LIANG; Chunyi ZHI

doi:10.1149/1945-7111/ad85f9

Quasi-Homogeneous Bromine Phase in Zinc-Bromine Batteries with Advanced Energy Efficiency and Energy Density

Jiaxiong ZHU, Qing LI, Ze CHEN, Pei LI, Hu HONG, Huilin CUI, Guojin LIANG, Chunyi ZHI^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

Abstract

Regarding energy density, kinetics, and reversibility, the zinc-bromine batteries (ZBBs) exhibit advantages comparable to the conventional metal hydride nickel batteries as aqueous systems. However, the development of ZBBs has been impeded by two critical challenges: the self-discharge of Br-Br species cross-over and the short circuit caused by zinc dendrites. Achieving high energy density necessitates a large areal capacity electrode and tight battery assembly, which introduces additional hurdles. Addressing these challenges, we have successfully implemented a novel quasi-homogeneous bromine phase. Our optimized approach has realized ZBBs with a remarkable energy efficiency (EE) of 92.7% based on an areal capacity of 12 mA h cm⁻² in a period duration of 13 h, an energy density of whole battery (EDB) of 80 W h l⁻¹ with average EE of 92.5% for an extended cycle life of approximately 500 cycles, and a maximum EDB of 186 W h l⁻¹ without pre-added zinc metal. This innovative work holds practical significance for developing ZBBs and providing insights and solutions to critical challenges.

Original language	English
Article number	100528
Journal	Journal of the Electrochemical Society
Volume	171
Issue number	10
DOIs	https://doi.org/10.1149/1945-7111/ad85f9
Publication status	Published - 23 Oct 2024
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2024 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

Funding

This research was supported by the National Key R&D Program of China (no. 2019YFA0705104, GRFs under Project CityU 11305218 and CityU 11212920).

Keywords

batteries - aqueous
bromine phase
energy density
energy efficiency
Homogenized electrodes
tight assembly state
zinc-bromine batteries

UN SDGs

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

Access to Document

10.1149/1945-7111/ad85f9

Cite this

@article{8a5394619a984b4fb19e2c949e7c6077,

title = "Quasi-Homogeneous Bromine Phase in Zinc-Bromine Batteries with Advanced Energy Efficiency and Energy Density",

abstract = "Regarding energy density, kinetics, and reversibility, the zinc-bromine batteries (ZBBs) exhibit advantages comparable to the conventional metal hydride nickel batteries as aqueous systems. However, the development of ZBBs has been impeded by two critical challenges: the self-discharge of Br-Br species cross-over and the short circuit caused by zinc dendrites. Achieving high energy density necessitates a large areal capacity electrode and tight battery assembly, which introduces additional hurdles. Addressing these challenges, we have successfully implemented a novel quasi-homogeneous bromine phase. Our optimized approach has realized ZBBs with a remarkable energy efficiency (EE) of 92.7% based on an areal capacity of 12 mA h cm−2 in a period duration of 13 h, an energy density of whole battery (EDB) of 80 W h l−1 with average EE of 92.5% for an extended cycle life of approximately 500 cycles, and a maximum EDB of 186 W h l−1 without pre-added zinc metal. This innovative work holds practical significance for developing ZBBs and providing insights and solutions to critical challenges.",

keywords = "batteries - aqueous, bromine phase, energy density, energy efficiency, Homogenized electrodes, tight assembly state, zinc-bromine batteries",

author = "Jiaxiong ZHU and Qing LI and Ze CHEN and Pei LI and Hu HONG and Huilin CUI and Guojin LIANG and Chunyi ZHI",

note = "Publisher Copyright: {\textcopyright} 2024 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited. All rights, including for text and data mining, AI training, and similar technologies, are reserved.",

year = "2024",

month = oct,

day = "23",

doi = "10.1149/1945-7111/ad85f9",

language = "English",

volume = "171",

journal = "Journal of the Electrochemical Society",

issn = "0013-4651",

publisher = "Institute of Physics",

number = "10",

}

TY - JOUR

T1 - Quasi-Homogeneous Bromine Phase in Zinc-Bromine Batteries with Advanced Energy Efficiency and Energy Density

AU - ZHU, Jiaxiong

AU - LI, Qing

AU - CHEN, Ze

AU - LI, Pei

AU - HONG, Hu

AU - CUI, Huilin

AU - LIANG, Guojin

AU - ZHI, Chunyi

N1 - Publisher Copyright: © 2024 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

PY - 2024/10/23

Y1 - 2024/10/23

N2 - Regarding energy density, kinetics, and reversibility, the zinc-bromine batteries (ZBBs) exhibit advantages comparable to the conventional metal hydride nickel batteries as aqueous systems. However, the development of ZBBs has been impeded by two critical challenges: the self-discharge of Br-Br species cross-over and the short circuit caused by zinc dendrites. Achieving high energy density necessitates a large areal capacity electrode and tight battery assembly, which introduces additional hurdles. Addressing these challenges, we have successfully implemented a novel quasi-homogeneous bromine phase. Our optimized approach has realized ZBBs with a remarkable energy efficiency (EE) of 92.7% based on an areal capacity of 12 mA h cm−2 in a period duration of 13 h, an energy density of whole battery (EDB) of 80 W h l−1 with average EE of 92.5% for an extended cycle life of approximately 500 cycles, and a maximum EDB of 186 W h l−1 without pre-added zinc metal. This innovative work holds practical significance for developing ZBBs and providing insights and solutions to critical challenges.

AB - Regarding energy density, kinetics, and reversibility, the zinc-bromine batteries (ZBBs) exhibit advantages comparable to the conventional metal hydride nickel batteries as aqueous systems. However, the development of ZBBs has been impeded by two critical challenges: the self-discharge of Br-Br species cross-over and the short circuit caused by zinc dendrites. Achieving high energy density necessitates a large areal capacity electrode and tight battery assembly, which introduces additional hurdles. Addressing these challenges, we have successfully implemented a novel quasi-homogeneous bromine phase. Our optimized approach has realized ZBBs with a remarkable energy efficiency (EE) of 92.7% based on an areal capacity of 12 mA h cm−2 in a period duration of 13 h, an energy density of whole battery (EDB) of 80 W h l−1 with average EE of 92.5% for an extended cycle life of approximately 500 cycles, and a maximum EDB of 186 W h l−1 without pre-added zinc metal. This innovative work holds practical significance for developing ZBBs and providing insights and solutions to critical challenges.

KW - batteries - aqueous

KW - bromine phase

KW - energy density

KW - energy efficiency

KW - Homogenized electrodes

KW - tight assembly state

KW - zinc-bromine batteries

UR - http://www.scopus.com/inward/record.url?scp=85208257027&partnerID=8YFLogxK

U2 - 10.1149/1945-7111/ad85f9

DO - 10.1149/1945-7111/ad85f9

M3 - Journal Article (refereed)

AN - SCOPUS:85208257027

SN - 0013-4651

VL - 171

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 10

M1 - 100528

ER -

Quasi-Homogeneous Bromine Phase in Zinc-Bromine Batteries with Advanced Energy Efficiency and Energy Density

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this