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

能源科学与工程学院

科研成果: 期刊稿件 › 文章 › 同行评审

56 引用（Scopus）

摘要

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%.

源语言	英语
文章编号	2001583
期刊	Advanced Energy Materials
卷	10
期	40
DOI	https://doi.org/10.1002/aenm.202001583
出版状态	已出版 - 1 10月 2020

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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%.",

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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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DO - 10.1002/aenm.202001583

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SN - 1614-6832

VL - 10

JO - Advanced Energy Materials

JF - Advanced Energy Materials

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M1 - 2001583

ER -

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

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