High Energy All-Solid-State Li-ion Batteries
Abstract
Over the course of this project, we have developed high capacity all-solid-state Li-ion battery anodes using a variety of different approaches and manufacturing processes. The most promising of these techniques has been the utilization of commercially available polyacrylonitrile as a mixed conducting binder. Through the use of this inexpensive and tough polymer, we have demonstrated stable cycling, high capacity electrodes with large mass loadings of silicon and tin active materials. The optimization of the silicon-polyacrylonitrile sheet style anode has resulted in a cell displaying a large electrode specific capacity >1300 mAh/g with over 91% capacity retention after 100 charge-discharge cycles. This is, to our knowledge, the best cycling performance ever reported for an all-solid-state Li-ion anode.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 03, 2019
- Accession Number
- AD1070593
Entities
People
- Se-Hee Lee
Organizations
- University of Colorado Boulder