In March 2016, our research team published a new dual-ion battery on the journal of Advanced Energy Materials. Compared with conventional lithium batteries, this new battery has the advantages of low cost, high working voltage, good safety, environmental protection and easy recycling. However, the cycling stability of the battery still needs to be improved owing to the huge volume change of the new high-capacity anode during the charging and discharging process.

    Recently, our research team has synthesized a high capacity composite anode material using porous structure and surface coating design. Owing to the three-dimensional porous conductive network, the volume expansion effect during the alloying process can be effectively alleviated, and the ion conductivity can be significantly improved, therefore the battery exhibits good rate performance. In addition, the carbon coating not only alleviates the volume variation effect, but also contributes to the formation of stable SEI film, which significantly improves the cycle life of the battery. The relevant research result, "Carbon-Coated Porous Aluminum Foil Anode for high-rate, long-term Cycling Stability and High Energy Density dual-ion Batteries", has been published online on the well-known journal Advanced Materials, and an international invention patent has been applied. The research was widely reported by the American association for the advancement of science (AAAS) and other academic media.

News report link:

https://www.eurekalert.org/pub_releases/2016-10/caos-anb101016.php