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Title: Elucidating Solvation Structures for Rational Design of Multivalent Electrolytes—A Review

Fundamental molecular-level understanding of functional properties of liquid solutions provides an important basis for designing optimized electrolytes for numerous applications. In particular, exhaustive knowledge of solvation structure, stability, and transport properties is critical for developing stable electrolytes for fast-charging and high-energy-density next-generation energy storage systems. Accordingly, there is growing interest in the rational design of electrolytes for beyond lithium-ion systems by tuning the molecular-level interactions of solvate species present in the electrolytes. Here in this paper, we present a review of the solvation structure of multivalent electrolytes and its impact on the electrochemical performance of these batteries. A direct correlation between solvate species present in the solution and macroscopic properties of electrolytes is sparse for multivalent electrolytes and contradictory results have been reported in the literature. This review aims to illustrate the current understanding, compare results, and highlight future needs and directions to enable the deep understanding needed for the rational design of improved multivalent electrolytes.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [4]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Joint Center for Energy Storage Research (JCESR), Chicago, IL (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Graduate Group in Applied Science and Technology; Joint Center for Energy Storage Research (JCESR), Chicago, IL (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineering
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineering; Joint Center for Energy Storage Research (JCESR), Chicago, IL (United States)
Publication Date:
Grant/Contract Number:
AC02-05CH11231; AC02-06CH11357
Type:
Published Article
Journal Name:
Topics in Current Chemistry
Additional Journal Information:
Journal Volume: 376; Journal Issue: 3; Journal ID: ISSN 2365-0869
Publisher:
Springer
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Multivalent electrolytes; Solvation structure; Renewable energy
OSTI Identifier:
1434802
Alternate Identifier(s):
OSTI ID: 1460339