Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6618405 | Electrochimica Acta | 2012 | 9 Pages |
Abstract
This study focuses on preparing a hybrid electrolyte, the combination of 90Â wt% inorganic solid and 10Â wt% organic liquid, for lithium based rechargeable batteries to illustrate the effect of electrode/electrolyte interfacing on electrochemical performance. The inorganic solid electrolyte selected is Li1.3Ti1.7Al0.3(PO4)3, and the Li-ion conducting organic liquid electrolyte selected is 1Â M LiPF6 in EC:DEC. Because of the addition of Li-ion conducting liquid between the solid electrode and solid electrolyte, the hybrid electrolyte cell minimizes the ineffective solid-on-solid interfaces common in all-solid-state cells. It is also expected that using a liquid electrolyte at the point of contact between the solid electrolyte and the electrode will adjust for the volume change of the electrode during Li insertion/extraction. As a result, the electrochemical performance of the hybrid electrolyte cell is superior to that of a solid electrolyte cell and is also competitive to that of a pure liquid electrolyte coin cell. Another advantage of the hybrid electrolyte cell observed in this work is that this system behaves as a self-safety device when sudden, higher temperatures are applied.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Nina Mahootcheian Asl, Joshua Keith, Cheolwoong Lim, Likun Zhu, Youngsik Kim,