Co-electrodeposited Al-Ga composite electrode from ionic liquid with volume expansion adaptability in energy storage

The high specific capacity and cycle stability of Li-ion alloy anode materials have been the focus of researchers. However, the alloy anode materials are easy to be broken and cracked after cycling. In this study, we have coelectrodeposited Al-Ga composite from ionic liquid, and the obtained composite has a higher specific capacity and the longer cycling life than single Ga/Al electrode. Initial discharge capacity is 1554.7 mAh/g, and Coulombic efficiency is 82.6% at 0.1 A/g. Co-electrodeposited Al-Ga composite from ionic liquid provides a new way to solve the electrode materials that are easily fractured and cracked after cycling, and improves cycle stability and high capacity to a certain extent.

Automated summary

This study coelectrodeposited Al-Ga composite from ionic liquid, resulting in higher specific capacity and longer cycling life compared to single Ga/Al electrode. The coelectrodeposition provides a new way to address the issue of easily broken and cracked electrode materials, while improving cycle stability and high capacity to a certain extent.