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A room temperature solid state dual-ion battery based on gel electrolyte

Abstract

The volume expansion of the electrodes and gas generation are still challenges for the current dual-ion batteries. Herein, we reported a novel room temperature solid state dual-ion battery with gel electrolytes. The dual-ion battery delivers a high reversible capacity of ~80 mA h g-1, with excellent rate performance and long-term cycling stability. Moreover, the battery displays a high working voltage of 4.2 V, which enables to enlarge the application value of the battery. Typically, the problem of gas generation is further improved through altering the charge cut-off voltage with gel electrolytes. First-principles simulations are performed to elucidate anion intercalated behavior in graphite cathode, demonstrating that the anion-intercalated graphite is stable without obvious distortion, and small activation energy barriers and fast ion-diffusivity are also reported. These convincing results indicate that this dual-ion battery is promising and environmental friendly for the future energy storage application.

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Publication details

The article was received on 08 Jan 2018, accepted on 07 Feb 2018 and first published on 08 Feb 2018


Article type: Paper
DOI: 10.1039/C8TA00221E
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    A room temperature solid state dual-ion battery based on gel electrolyte

    S. Jiao, S. Wang, X. Xiao, C. Fu, J. Tu and Y. Tan, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA00221E

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