Calcium-tin alloys as anodes for rechargeable non-aqueous calcium-ion batteries at room temperature.

ABSTRACT: Rechargeable calcium batteries possess attractive features for sustainable energy-storage solutions owing to their high theoretical energy densities, safety aspects and abundant natural resources. However, divalent Ca-ions and reactive Ca metal strongly interact with cathode materials and non-aqueous electrolyte solutions, leading to high charge-transfer barriers at the electrode-electrolyte interface and consequently low electrochemical performance. Here, we demonstrate the feasibility and elucidate the electrochemical properties of calcium-tin (Ca-Sn) alloy anodes for Ca-ion chemistries. Crystallographic and microstructural characterizations reveal that Sn formed from electrochemically dealloying the Ca-Sn alloy possesses unique properties, and that this in-situ formed Sn undergoes subse

SUBMITTER: Zhao-Karger Z 

PROVIDER: S-EPMC9253317 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature