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Designing better electrolytes

Journal Article · · Science
 [1];  [2];  [3]
  1. Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA.;Argonne Collaborative Center for Energy Storage Science (ACCESS), Argonne National Laboratory, Lemont, IL 60439, USA.
  2. Argonne Collaborative Center for Energy Storage Science (ACCESS), Argonne National Laboratory, Lemont, IL 60439, USA.;Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, IL 60439, USA.
  3. Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, IL 60439, USA.;Battery Science Branch, Energy Science Division, US Army Combat Capabilities Development Command (CCDC) Research Laboratory, Adelphi Laboratory Center, MD 20783, USA.

Electrolytes and the associated interphases constitute the critical components to support the emerging battery chemistries that promise tantalizing energy but involve drastic phase and structure complications. Designing better electrolytes and interphases holds the key to the success of these batteries. As the only component that interfaces with every other component in the device, an electrolyte must satisfy multiple criteria simultaneously. These include transporting ions while insulating electrons between the electrodes and maintaining stability against electrodes of extreme chemical natures: the strongly oxidative cathode and the strongly reductive anode. In most advanced batteries, the two electrodes operate at potentials far beyond the thermodynamic stability limits of electrolytes, so the stability therein has to be realized kinetically through an interphase formed from the sacrificial reactions between electrolyte and electrodes.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
2205190
Journal Information:
Science, Vol. 378, Issue 6624; ISSN 0036-8075
Country of Publication:
United States
Language:
English

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