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Electrolytes containing superhalogens for metal ion batteries

Patent ·
OSTI ID:1840402

Compounds (salts) for use as electrolytes, e.g. in batteries such as Li ion, Na ion and Mg ion batteries are provided. The negative ions (anions) of the compounds are complex molecules containing superhalogens, and thus exhibit improved safety, and yet have electron affinities that are equal to or greater than those of halogens. In addition, the binding energy between Li+ and the anions is relatively small so ions can move easily from one electrode to the other in solutions in which the compounds are dissolved. A further advantage is that the affinity of the electrolyte for water is also relatively low so that batteries in which the electrolytes are used have longer lives than those of the prior art.

Research Organization:
Virginia Commonwealth Univ., Richmond, VA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-96ER45579
Assignee:
Virginia Commonwealth University (Richmond, VA)
Patent Number(s):
11,108,087
Application Number:
16/072,807
OSTI ID:
1840402
Country of Publication:
United States
Language:
English

References (4)

Unusual stability of multiply charged organo-metallic complexes journal January 2015
Superhalogens: A Bridge between Complex Metal Hydrides and Li Ion Batteries journal March 2015
Superhalogens as Building Blocks of Halogen-Free Electrolytes in Lithium-Ion Batteries journal October 2014
Stability of B 12 (CN) 12 2− : Implications for Lithium and Magnesium Ion Batteries journal February 2016

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