Electrochemical intercalation of anions into graphite: Fundamental aspects, material synthesis, and application to the cathode of dual‐ion batteries
Yoshiaki Matsuo, Akane Inoo, Junichi Inamoto
TL;DR
This paper reviews the electrochemical intercalation of anions into graphite, focusing on its use in dual-ion batteries and the synthesis of functional materials.
Contribution
The paper provides a comprehensive review of anion intercalation into graphite and its application in dual-ion batteries.
Findings
Graphite can deliver about 110 mA h g−1 of reversible capacity as a dual-ion battery cathode.
Smaller anions like AlCl4− and Br− can enhance the capacity of graphite cathodes.
Electrochemical overoxidation produces graphite oxide and covalent-fluorine GICs for energy storage.
Abstract
In this review, fundamental aspects of the electrochemical intercalation of anions into graphite have been first summarized, and then described the electrochemical preparation of covalent‐type GICs and application of graphite as the cathode of dual‐ion battery. Electrochemical overoxidation of anion GICs provides graphite oxide and covalent‐fluorine GICs, which are key functional materials for various applications including energy storage devices. The reaction conditions to obtain fully oxidized graphite has been mentioned. Concerning the application of graphite for the cathode of dual‐ion battery, it stably delivers about 110 mA h g−1 of reversible capacity in usual organic electrolyte solutions. The combination of anion and solvent as well as the concentration of the anions in the electrolyte solutions greatly affect the performance of graphite cathode such as oxidation potential,…
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Taxonomy
TopicsEconomic Issues in Ukraine · Business and Economic Development · Labor Market and Education