Lithium Ion Batteries

Novel Polymer Nanocomposite Electrolytes:

In recent years, there has been a growing shift from liquid electrolytes towards solid polymer electrolytes in lithium ion batteries. Polymer electrolytes offer several advantages including enhanced safety, less reactivity towards lithium, and suitability for thin film fabrication. However, the ion conductivity in polymers is much lower than in conventional liquid electrolytes. Nanoscale fillers are shown to enhance ion conductivity in polymer electrolytes.  We are exploring novel polymer nanocomposite electrolytes by varying filler dimensions, shapes, size, material, and surface functionality to design electrolytes with optimum properties for lithium ion batteries.

Novel Polymer

 Fundamental Mechanisms of Lithium Ion Conductivity: 

We are developing models that address various parameters influencing ion conductivity in polymer nanocomposite electrolytes including filler properties (i.e. size, material, dispersion), polymer properties (free volume and segmental mobility), and lithium salt concentration. We are approaching this from both bulk level (continuum based models) and molecular level (MD simulations).

 Fundamental Mechanisms of LIC

 

Additional information