Reprint of “Suppressing propylene carbonate decomposition by coating graphite electrode foil with silver” |
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| Authors: | J Gao LJ Fu YP Wu T Takamura R Holze |
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| Affiliation: | a Department of Chemistry & Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
b Institut für Chemie, AG Elektrochemie, Technische Universität Chemnitz, D-09111 Chemnitz, Germany |
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| Abstract: | A method has been developed to suppress the decomposition of propylene carbonate (PC) by coating graphite electrode foil with a layer of silver. Results from electrochemical impedance measurements show that the Ag-coated graphite electrode presents lower charge transfer resistance and faster diffusion of lithium ions in comparison with the virginal one. Cyclic voltammograms and discharge-charge measurements suggest that the decomposition of propylene carbonate and co-intercalation of solvated lithium ions are prevented, and lithium ions can reversibly intercalate into and deintercalate from the Ag-coated graphite electrode. These results indicate that Ag-coating is a good way to improve the electrochemical performance of graphitic carbon in PC-based electrolyte solutions. |
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| Keywords: | Lithium-ion battery Anode material Low temperature Propylene carbonate Coating |
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