High-voltage and long-lasting aqueous chlorine-ion battery by virtue of “water-in-salt” electrolyte

Summary: Chloride-ion battery (CIB) is regarded as a promising electrochemical storage device due to their high theoretical volumetric capacities, low cost, and high abundance. However, low-cycle life limits its application in the energy storage field. Herein, we report a rechargeable CIB composed o...

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Main Authors: Tong Li, Mingqiang Li, Hang Li, Hu Zhao
Format: Article
Language:English
Published: Elsevier 2021-01-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589004220311731
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author Tong Li
Mingqiang Li
Hang Li
Hu Zhao
author_facet Tong Li
Mingqiang Li
Hang Li
Hu Zhao
author_sort Tong Li
collection DOAJ
description Summary: Chloride-ion battery (CIB) is regarded as a promising electrochemical storage device due to their high theoretical volumetric capacities, low cost, and high abundance. However, low-cycle life limits its application in the energy storage field. Herein, we report a rechargeable CIB composed of a “water-in-salt” electrolyte, a zinc anode, and a carbon cathode (graphene, carbon nanotubes, carbon black). These cathodes exhibit initial reversible specific capacities of 136, 108, and 102 mAh g−1, respectively. Especially, a reversible discharge capacity of 95 mAh g−1 was retained after 2000 cycles when graphene is used as the cathode. Such high cycling stability was first reported in CIBs. Furthermore, the use of “water-in-salt” electrolytes has improved the discharge platform of aqueous CIBs to 2.6V. The charge and discharge mechanism of the carbon cathode was investigated by TEM, FTIR, Raman, and XPS, proving the chloride ions reversible absorption/desorption in carbon cathodes.
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spelling doaj.art-858d7ebb15d542928fb124de0691879e2022-12-21T21:33:20ZengElsevieriScience2589-00422021-01-01241101976High-voltage and long-lasting aqueous chlorine-ion battery by virtue of “water-in-salt” electrolyteTong Li0Mingqiang Li1Hang Li2Hu Zhao3School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, ChinaSchool of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China; Corresponding authorSchool of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, ChinaSchool of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, ChinaSummary: Chloride-ion battery (CIB) is regarded as a promising electrochemical storage device due to their high theoretical volumetric capacities, low cost, and high abundance. However, low-cycle life limits its application in the energy storage field. Herein, we report a rechargeable CIB composed of a “water-in-salt” electrolyte, a zinc anode, and a carbon cathode (graphene, carbon nanotubes, carbon black). These cathodes exhibit initial reversible specific capacities of 136, 108, and 102 mAh g−1, respectively. Especially, a reversible discharge capacity of 95 mAh g−1 was retained after 2000 cycles when graphene is used as the cathode. Such high cycling stability was first reported in CIBs. Furthermore, the use of “water-in-salt” electrolytes has improved the discharge platform of aqueous CIBs to 2.6V. The charge and discharge mechanism of the carbon cathode was investigated by TEM, FTIR, Raman, and XPS, proving the chloride ions reversible absorption/desorption in carbon cathodes.http://www.sciencedirect.com/science/article/pii/S2589004220311731Electrochemical Energy StorageEnergy MaterialsEnergy StorageMaterials Characterization
spellingShingle Tong Li
Mingqiang Li
Hang Li
Hu Zhao
High-voltage and long-lasting aqueous chlorine-ion battery by virtue of “water-in-salt” electrolyte
iScience
Electrochemical Energy Storage
Energy Materials
Energy Storage
Materials Characterization
title High-voltage and long-lasting aqueous chlorine-ion battery by virtue of “water-in-salt” electrolyte
title_full High-voltage and long-lasting aqueous chlorine-ion battery by virtue of “water-in-salt” electrolyte
title_fullStr High-voltage and long-lasting aqueous chlorine-ion battery by virtue of “water-in-salt” electrolyte
title_full_unstemmed High-voltage and long-lasting aqueous chlorine-ion battery by virtue of “water-in-salt” electrolyte
title_short High-voltage and long-lasting aqueous chlorine-ion battery by virtue of “water-in-salt” electrolyte
title_sort high voltage and long lasting aqueous chlorine ion battery by virtue of water in salt electrolyte
topic Electrochemical Energy Storage
Energy Materials
Energy Storage
Materials Characterization
url http://www.sciencedirect.com/science/article/pii/S2589004220311731
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AT mingqiangli highvoltageandlonglastingaqueouschlorineionbatterybyvirtueofwaterinsaltelectrolyte
AT hangli highvoltageandlonglastingaqueouschlorineionbatterybyvirtueofwaterinsaltelectrolyte
AT huzhao highvoltageandlonglastingaqueouschlorineionbatterybyvirtueofwaterinsaltelectrolyte