Polymer coating could give electric vehicle batteries ‘big boost’

At present, graphite is the material of choice for the manufacture of EV battery electrodes.

Aluminium and silicon make promising electrode materials for lithium–ion batteries because they are abundant, cheap, lightweight, and have a potentially high energy storage capacity.

However, they also have a significant drawback, in that they wear down quickly after multiple charge–discharge cycles.

Coating the electrodes in HOS-PFM, however, was shown to “significantly” prevent both aluminium- and silicon-based electrodes from degrading during battery cycling.

In fact, the team demonstrated that the coated electrodes were able to keep up a high battery capacity over 300 charge–discharge cycles — an endurance comparable to that of today’s state-of-the-art electrodes.

READ MORE: Electric car charger rollout should be ‘top priority’

Article source: https://www.express.co.uk/news/science/1743893/polymer-coating-electrodes-give-electric-vehicle-batteries-big-boost-hos-pfm