BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20260329T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20251026T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260424T143146Z
UID:68ff657c53a35945020073@ist.ac.at
DTSTART:20251112T110000
DTEND:20251112T120000
DESCRIPTION:Speaker: Maria Lukatskaya\nhosted by Stefan Freunberger\nAbstra
 ct: Electrolytes play a crucial role in energy storage devices\, impacting
  their environmental footprint\, safety\, cost\, and performance. This tal
 k will cover two key areas of electrolyte research for improving batteries
 .First\, we will explore water-based batteries. Aqueous electrolytes\, bei
 ng non-flammable and less toxic\, offer safer battery operation. However\,
  their limited electrochemical stability window reduces energy density. To
  address this\, highly concentrated "water-in-salt" (WIS) electrolytes hav
 e been developed\, significantly expanding the stability window and enhanc
 ing the performance of Li-ion and Zn metal batteries for grid energy stora
 ge. Despite their advantages\, WIS electrolytes have high viscosity and re
 quire large amounts of potentially toxic salts\, which limits their usabil
 ity. We will discuss how cation solvation\, electrolyte structure\, and hy
 drogen bonding influence the electrochemical properties and performance\, 
 particularly in Zn plating/stripping and electrolyte decomposition. Additi
 onally\, we will explore strategies for engineering relatively dilute elec
 trolytes for efficient aqueous batteries.Second\, the talk will present a 
 novel method for stabilizing interfaces in Li metal batteries (LiMBs). Con
 ventional electrolytes result in low cycle life and safety issues due to "
 dead" lithium and dendrite formation. Prior research suggests that fluorin
 e-rich interfacial layer chemistry is important for the stabilization of L
 i-metal anodes\, which can be achieved when electrolytes with a high fract
 ion of fluorinated solvents and/or salts are used. We propose an alternati
 ve approach using electrostatic attraction between positively charged read
 ily reducible fluorinated cations and the negatively charged anode. This m
 ethod enables the formation of a robust fluorine-rich interfacial layer wi
 th minimal additive (0.1 wt%)\, facilitating dense\, conformal Li depositi
 on. This strategy can offers a cost-effective\, environmentally friendly s
 olution for enhancing high-energy batteries.
LOCATION:Sunstone Bldg / Ground floor / Big Seminar Room B / 63 seats (I23.
 EG.102)\, ISTA
ORGANIZER:rpacarad@ist.ac.at
SUMMARY:Maria Lukatskaya: Engineering Local Chemical Environments in Electr
 olytes for Efficient Batteries
URL:https://talks-calendar.ista.ac.at/events/6119
END:VEVENT
END:VCALENDAR