Anode

High Energy Density Anodes Enabled By Functional Polymer Coating

Anode

High Energy Density Anodes Enabled By Functional Polymer Coating

Conductive polymer as a functional surface coating layer for anode materials Researchers at Lawrence Berkeley National Laboratory have developed a conductive polymer coating, dubbed HOS-PFM. Combining this polymer with silicon or aluminium increases the life cycle and power of lithium-ion batteries. The elasticity of the polymer combined with the ion and electron conducting properties helps to maintain electric contact when the silicon or aluminium material cracks during cycling. Additionally, this coating shows improved adhesion between the anode material and the current collector throughout its cycle life.. Remarkably, HOS-PFM delivers high battery capacity and energy density as well as extended cycle life, matching the performance of the most advanced electrodes currently available. A functional polymer coating that enhances mixed ionic-electronic conduction could serve as an effective approach for anode protection, thereby improving cycling efficiency.

Pristine anode

Without anode coating

Academia | P. 217 Source: Zhu, Sternlicht, Ha, Fang, Liu, Savitzky, Zhao, Lu, Fu, Ophus, Zhu, Yang, Minor, Liu and Berkeley Lab News Release

With anode coating

Extracted from the PDF; charts and images may read imperfectly.