Seminars & Speakers

Na rechargeable Battery Using SO2-based Inorganic Electrolyte
Speaker Dr. Coojin Jeong
Affiliation Korea Electronics Technology Institute
Date September 27, 2017
Time 4:00 pm - 5:00 pm
Venue EB2(#104)-E205
Sponsor UNIST-Energy and Chemical Engineering
Host Prof. Hyun Kon Song
Contact 052-217-2512

In order to address recent concerns on the limited resources of lithium and the localized reserves, Na rechargeable batteries have gained much attention as alternative power sources to replace Li rechargeable batteries. Although Na and Li have similar physicochemical properties, Na rechargeable batteries have not enjoyed the success that Li batteries have, due to their low energy density and poor cycle performance. Herein we introduce new Na rechargeable battery system using an SO2-based inorganic liquid electrolyte as (i) a Na+-conducting medium and/or (ii) cathodic electroactive material. The possibility of room temperature Na–SO2 battery and Na–CuCl2 ZEBRA-type battery using an SO2-based electrolyte is to be discussed. Also, the unique behavior of dendrite-free Na metal anode in this electrolyte, resulting in superior electrochemical performances to those in the conventional organic electrolyte, will be presented.