A Fully Aqueous Hybrid Electrolyte Rechargeable Battery with High Voltage and High Energy Density

Xinhai Yuan; Xiongwei Wu; Xian Xiang Zeng; Faxing Wang; Jing Wang; Yusong Zhu; Lijun Fu; Yuping Wu; Xiangfeng Duan

doi:10.1002/aenm.202001583

A Fully Aqueous Hybrid Electrolyte Rechargeable Battery with High Voltage and High Energy Density

Xinhai Yuan, Xiongwei Wu, Xian Xiang Zeng, Faxing Wang, Jing Wang, Yusong Zhu, Lijun Fu, Yuping Wu, Xiangfeng Duan

School of energy science and engineering

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

55 Scopus citations

Abstract

Aqueous rechargeable batteries (ARBs) offer advantages in terms of safety, environmental friendliness and cost over their non-aqueous counterparts. However, the narrow electrochemical stability window of water inherently limits the output voltage and energy density of ARBs. Here, a system with an aqueous hybrid electrolyte containing a Zn anode in alkaline solution and LiMn₂O₄ cathode in neutral solution is reported. Combining the separated electrode-electrolyte with a Li⁺-conducting membrane, the potential window is effectively widened to enable an aqueous hybrid electrolyte rechargeable battery (AHERB) above 2.3 V. This battery system delivers a steady energy density of 208 Wh kg⁻¹ (based on the total weight of active materials) at 1.69 C with a high average output voltage up to 2.31 V, cycled for over 1000 cycles with an average Coulombic efficiency of >98%.

Original language	English
Article number	2001583
Journal	Advanced Energy Materials
Volume	10
Issue number	40
DOIs	https://doi.org/10.1002/aenm.202001583
State	Published - 1 Oct 2020

Keywords

aqueous rechargeable batteries
high energy density
high voltage
neutral-alkaline hybrid electrolytes

UN SDGs

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

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10.1002/aenm.202001583

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title = "A Fully Aqueous Hybrid Electrolyte Rechargeable Battery with High Voltage and High Energy Density",

abstract = "Aqueous rechargeable batteries (ARBs) offer advantages in terms of safety, environmental friendliness and cost over their non-aqueous counterparts. However, the narrow electrochemical stability window of water inherently limits the output voltage and energy density of ARBs. Here, a system with an aqueous hybrid electrolyte containing a Zn anode in alkaline solution and LiMn2O4 cathode in neutral solution is reported. Combining the separated electrode-electrolyte with a Li+-conducting membrane, the potential window is effectively widened to enable an aqueous hybrid electrolyte rechargeable battery (AHERB) above 2.3 V. This battery system delivers a steady energy density of 208 Wh kg−1 (based on the total weight of active materials) at 1.69 C with a high average output voltage up to 2.31 V, cycled for over 1000 cycles with an average Coulombic efficiency of >98%.",

keywords = "aqueous rechargeable batteries, high energy density, high voltage, neutral-alkaline hybrid electrolytes",

author = "Xinhai Yuan and Xiongwei Wu and Zeng, {Xian Xiang} and Faxing Wang and Jing Wang and Yusong Zhu and Lijun Fu and Yuping Wu and Xiangfeng Duan",

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doi = "10.1002/aenm.202001583",

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T1 - A Fully Aqueous Hybrid Electrolyte Rechargeable Battery with High Voltage and High Energy Density

AU - Yuan, Xinhai

AU - Wu, Xiongwei

AU - Zeng, Xian Xiang

AU - Wang, Faxing

AU - Wang, Jing

AU - Zhu, Yusong

AU - Fu, Lijun

AU - Wu, Yuping

AU - Duan, Xiangfeng

PY - 2020/10/1

Y1 - 2020/10/1

N2 - Aqueous rechargeable batteries (ARBs) offer advantages in terms of safety, environmental friendliness and cost over their non-aqueous counterparts. However, the narrow electrochemical stability window of water inherently limits the output voltage and energy density of ARBs. Here, a system with an aqueous hybrid electrolyte containing a Zn anode in alkaline solution and LiMn2O4 cathode in neutral solution is reported. Combining the separated electrode-electrolyte with a Li+-conducting membrane, the potential window is effectively widened to enable an aqueous hybrid electrolyte rechargeable battery (AHERB) above 2.3 V. This battery system delivers a steady energy density of 208 Wh kg−1 (based on the total weight of active materials) at 1.69 C with a high average output voltage up to 2.31 V, cycled for over 1000 cycles with an average Coulombic efficiency of >98%.

AB - Aqueous rechargeable batteries (ARBs) offer advantages in terms of safety, environmental friendliness and cost over their non-aqueous counterparts. However, the narrow electrochemical stability window of water inherently limits the output voltage and energy density of ARBs. Here, a system with an aqueous hybrid electrolyte containing a Zn anode in alkaline solution and LiMn2O4 cathode in neutral solution is reported. Combining the separated electrode-electrolyte with a Li+-conducting membrane, the potential window is effectively widened to enable an aqueous hybrid electrolyte rechargeable battery (AHERB) above 2.3 V. This battery system delivers a steady energy density of 208 Wh kg−1 (based on the total weight of active materials) at 1.69 C with a high average output voltage up to 2.31 V, cycled for over 1000 cycles with an average Coulombic efficiency of >98%.

KW - aqueous rechargeable batteries

KW - high energy density

KW - high voltage

KW - neutral-alkaline hybrid electrolytes

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U2 - 10.1002/aenm.202001583

DO - 10.1002/aenm.202001583

M3 - 文章

AN - SCOPUS:85091483131

SN - 1614-6832

VL - 10

JO - Advanced Energy Materials

JF - Advanced Energy Materials

IS - 40

M1 - 2001583

ER -

A Fully Aqueous Hybrid Electrolyte Rechargeable Battery with High Voltage and High Energy Density

Abstract

Keywords

UN SDGs

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