Auxiliary coordination strategy designed poly(chloranil-squaricamide) cathode achieving enhanced specific capacity utilization and Zn2+ insertion/extraction for aqueous zinc ion batteries

Guo, Chenxiao; Liu, Yang; Wu, Dongmei; Wang, Jingmin; Shen, Xuan; Jia, Chengxiang; Zhang, Jiaxin; Wang, Liqiu

doi:10.1016/j.jelechem.2023.117511

Journal of Electroanalytical Chemistry

2023

DOI: 10.1016/j.jelechem.2023.117511

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Auxiliary coordination strategy designed poly(chloranil-squaricamide) cathode achieving enhanced specific capacity utilization and Zn2+ insertion/extraction for aqueous zinc ion batteries

Chenxiao Guo

Yang Liu

Dongmei Wu

et al.

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2024

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Cited by 2 publications

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Effective Stabilization of Organic Cathodes Through Formation of a Protective Solid Electrolyte Interface Layer via Reduction

Wang,

Huang,

Gao

et al. 2024

ChemSusChem

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2,5‐Dihydroxy‐1,4‐benzoquinone (DHBQ) is a promising cathode material, but its high solubility in electrolytes leads to rapid capacity degradation. This study investigates the dilithium salt of DHBQ, Li2DHBQ, as a cathode material for lithium‐ion batteries (LIBs). Despite minimal solubility, Li2DHBQ cathodes suffer rapid capacity decay due to severe morphological damage within the voltage range of 1.5‐3.0 V. To stabilize morphology, we promoted a protective solid electrolyte interphase (SEI) layer on Li2DHBQ particles by lowering the discharge cutoff voltage. Cycling the battery with a 0.5 V discharge cutoff voltage achieved an optimal SEI layer, significantly improving Li2DHBQ's morphological stability. Consequently, the battery maintained 170 mAh g‐1 with a low decay rate of 0.16% within a voltage range of 0.5‐3.0 V after 200 cycles at 500 mA g‐1. Furthermore, initial cycling at a 0.5 V discharge cutoff for 20 cycles to form an SEI layer, followed by cycling at a normal 1.5 V discharge cutoff, retained a higher capacity of 187 mAh g⁻¹ after 200 cycles. This study demonstrates the effectiveness of forming a cathode SEI layer at low discharge voltages as a new approach to stabilizing organic cathode materials.

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Effective Stabilization of Organic Cathodes Through Formation of a Protective Solid Electrolyte Interface Layer via Reduction

Wang,

Huang,

Gao

et al. 2024

ChemSusChem

View full text Add to dashboard Cite

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A universal fabrication strategy for MOFs-driven vanadium-based composite for aqueous zinc ion batteries

Wu,

Luo,

Peng

et al. 2024

Chemical Engineering Journal

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Auxiliary coordination strategy designed poly(chloranil-squaricamide) cathode achieving enhanced specific capacity utilization and Zn2+ insertion/extraction for aqueous zinc ion batteries

Cited by 2 publications

References 76 publications

Effective Stabilization of Organic Cathodes Through Formation of a Protective Solid Electrolyte Interface Layer via Reduction

Effective Stabilization of Organic Cathodes Through Formation of a Protective Solid Electrolyte Interface Layer via Reduction

A universal fabrication strategy for MOFs-driven vanadium-based composite for aqueous zinc ion batteries

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