CFN Colloquium

"Safe Li-Ion Battery Electrolytes: from Aqueous Electrolytes, Nonflammable Organic Electrolytes, to Solid State Electrolytes"

Presented by Chunsheng Wang, University of Maryland

Thursday, September 6, 2018, 4:00 pm — Bldg 735, Seminar Room, 2nd Floor

Li-ion batteries are the critical enabling technology for the portable devices, electric vehicles (EV), and renewable energy. However, the safety of current batteries still needs to be improved to satisfy these requirements. We investigated the electrochemical performances of three nonflammable electrolytes: water-in-salt electrolytes, all fluorinated organic electrolytes, and solid state electrolytes. The electrochemical stability window of these electrolytes, interface/interphase stability with anodes and high-voltage cathodes, and the interface/interphase resistance between electrodes and electrolytes were systematically studied. The critical issues limiting the performance of these safe electrolytes will be discussed.

Hosted by: Dong Su

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