About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Energy Materials for Sustainable Development
|
| Presentation Title |
Electrochemical Energy Storage with Nanoscale Materials |
| Author(s) |
Bruce S. Dunn |
| On-Site Speaker (Planned) |
Bruce S. Dunn |
| Abstract Scope |
The prospect of developing energy storage materials with the energy density of batteries and the power density of electrical double-layer capacitors is an exciting direction of great interest for a variety of energy storage applications. To achieve these properties, our research has focused on pseudocapacitive materials in which ion insertion induces reversible redox reactions at or near the surface of an electrode material. In characterizing the energy storage properties of pseudocapacitive materials, we make a distinction between those materials which exhibit capacitive charge storage for a wide range of particle sizes and those which exhibit pseudocapacitive responses only when nanostructured. The latter take advantage of the high surface area and short diffusion distances of nanoscale materials. In our studies, we have demonstrated this extrinsic approach and obtained pseudocapacitive responses using nanoscale materials, mesoporous architectures and 2D exfoliated layers. This presentation will review our methods and identify future directions. |