Advanced High-Voltage Aqueous Lithium-Ion Battery Enabled by “Water-in-Bisalt” Electrolyte

Liumin Suo; Oleg Borodin; Wei Sun; Xiulin Fan; Chongyin Yang; Fei Wang; Tao Gao; Zhaohui Ma; Marshall Schroeder; Arthur von Cresce; Selena M. Russell; Michel Armand; Charles Angell; Kang Xu; Chunsheng Wang

doi:10.1002/anie.201602397

Advanced High-Voltage Aqueous Lithium-Ion Battery Enabled by “Water-in-Bisalt” Electrolyte

Liumin Suo, Oleg Borodin, Wei Sun, Xiulin Fan, Chongyin Yang, Fei Wang, Tao Gao, Zhaohui Ma, Marshall Schroeder, Arthur von Cresce, Selena M. Russell, Michel Armand, Charles Angell, Kang Xu, Chunsheng Wang

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

540 Scopus citations

Abstract

A new super-concentrated aqueous electrolyte is proposed by introducing a second lithium salt. The resultant ultra-high concentration of 28 m led to more effective formation of a protective interphase on the anode along with further suppression of water activities at both anode and cathode surfaces. The improved electrochemical stability allows the use of TiO₂as the anode material, and a 2.5 V aqueous Li-ion cell based on LiMn₂O₄and carbon-coated TiO₂delivered the unprecedented energy density of 100 Wh kg⁻¹for rechargeable aqueous Li-ion cells, along with excellent cycling stability and high coulombic efficiency. It has been demonstrated that the introduction of a second salts into the “water-in-salt” electrolyte further pushed the energy densities of aqueous Li-ion cells closer to those of the state-of-the-art Li-ion batteries.

Original language	English (US)
Pages (from-to)	7136-7141
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	25
DOIs	https://doi.org/10.1002/anie.201602397
State	Published - Jun 13 2016

Keywords

anatase TiO
aqueous batteries
electrolyte
lithium-ion batteries
water-in-bisalt

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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Suo, L., Borodin, O., Sun, W., Fan, X., Yang, C., Wang, F., Gao, T., Ma, Z., Schroeder, M., von Cresce, A., Russell, S. M., Armand, M., Angell, C., Xu, K., & Wang, C. (2016). Advanced High-Voltage Aqueous Lithium-Ion Battery Enabled by “Water-in-Bisalt” Electrolyte. Angewandte Chemie - International Edition, 55(25), 7136-7141. https://doi.org/10.1002/anie.201602397

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title = "Advanced High-Voltage Aqueous Lithium-Ion Battery Enabled by “Water-in-Bisalt” Electrolyte",

abstract = "A new super-concentrated aqueous electrolyte is proposed by introducing a second lithium salt. The resultant ultra-high concentration of 28 m led to more effective formation of a protective interphase on the anode along with further suppression of water activities at both anode and cathode surfaces. The improved electrochemical stability allows the use of TiO2as the anode material, and a 2.5 V aqueous Li-ion cell based on LiMn2O4and carbon-coated TiO2delivered the unprecedented energy density of 100 Wh kg−1for rechargeable aqueous Li-ion cells, along with excellent cycling stability and high coulombic efficiency. It has been demonstrated that the introduction of a second salts into the “water-in-salt” electrolyte further pushed the energy densities of aqueous Li-ion cells closer to those of the state-of-the-art Li-ion batteries.",

keywords = "anatase TiO, aqueous batteries, electrolyte, lithium-ion batteries, water-in-bisalt",

author = "Liumin Suo and Oleg Borodin and Wei Sun and Xiulin Fan and Chongyin Yang and Fei Wang and Tao Gao and Zhaohui Ma and Marshall Schroeder and {von Cresce}, Arthur and Russell, {Selena M.} and Michel Armand and Charles Angell and Kang Xu and Chunsheng Wang",

note = "Funding Information: C.W. and K.X. gratefully acknowledge funding from DOE ARPA-E (DEAR0000389). We also thank the support of the Maryland Nano Center and its Nisp Lab and SAC Lab, and Dr. Karen Gaskell for their technical support and helpful discussion. Modeling efforts were supported by ARL Enterprise for Multiscale Research of Materials Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

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doi = "10.1002/anie.201602397",

language = "English (US)",

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AU - Borodin, Oleg

AU - Sun, Wei

AU - Fan, Xiulin

AU - Yang, Chongyin

AU - Wang, Fei

AU - Gao, Tao

AU - Ma, Zhaohui

AU - Schroeder, Marshall

AU - von Cresce, Arthur

AU - Russell, Selena M.

AU - Armand, Michel

AU - Angell, Charles

AU - Xu, Kang

AU - Wang, Chunsheng

N1 - Funding Information: C.W. and K.X. gratefully acknowledge funding from DOE ARPA-E (DEAR0000389). We also thank the support of the Maryland Nano Center and its Nisp Lab and SAC Lab, and Dr. Karen Gaskell for their technical support and helpful discussion. Modeling efforts were supported by ARL Enterprise for Multiscale Research of Materials Publisher Copyright: © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2016/6/13

Y1 - 2016/6/13

N2 - A new super-concentrated aqueous electrolyte is proposed by introducing a second lithium salt. The resultant ultra-high concentration of 28 m led to more effective formation of a protective interphase on the anode along with further suppression of water activities at both anode and cathode surfaces. The improved electrochemical stability allows the use of TiO2as the anode material, and a 2.5 V aqueous Li-ion cell based on LiMn2O4and carbon-coated TiO2delivered the unprecedented energy density of 100 Wh kg−1for rechargeable aqueous Li-ion cells, along with excellent cycling stability and high coulombic efficiency. It has been demonstrated that the introduction of a second salts into the “water-in-salt” electrolyte further pushed the energy densities of aqueous Li-ion cells closer to those of the state-of-the-art Li-ion batteries.

AB - A new super-concentrated aqueous electrolyte is proposed by introducing a second lithium salt. The resultant ultra-high concentration of 28 m led to more effective formation of a protective interphase on the anode along with further suppression of water activities at both anode and cathode surfaces. The improved electrochemical stability allows the use of TiO2as the anode material, and a 2.5 V aqueous Li-ion cell based on LiMn2O4and carbon-coated TiO2delivered the unprecedented energy density of 100 Wh kg−1for rechargeable aqueous Li-ion cells, along with excellent cycling stability and high coulombic efficiency. It has been demonstrated that the introduction of a second salts into the “water-in-salt” electrolyte further pushed the energy densities of aqueous Li-ion cells closer to those of the state-of-the-art Li-ion batteries.

KW - anatase TiO

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KW - electrolyte

KW - lithium-ion batteries

KW - water-in-bisalt

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Advanced High-Voltage Aqueous Lithium-Ion Battery Enabled by “Water-in-Bisalt” Electrolyte

Abstract

Keywords

ASJC Scopus subject areas

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