Salts for multivalent ion batteries

Title: Salts for multivalent ion batteries

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Methods for preparing electrolyte salts for alkaline earth metal-ion batteries (e.g., calcium and magnesium ion batteries) are described. The electrolyte salts comprise alkaline earth metal (e.g., Mg or Ca) salts of bis(fluorosulfonyl)imide (FSI) and 3,4-dicyano-2-trifluoromethylimidazole (TDI). The methods comprise contacting FSI or TDI with an alkaline earth metal bis(trifluoroacetate) salt in trifluoroacetic acid.

Inventors:: Liao, Chen; Dzwiniel, Trevor L.; Pan, Baofei; Han, Sang-Don; Burrell, Anthony

Issue Date:: 2018-07-10

OSTI Identifier:: 1463702

Assignee:: UCHICAGO ARGONNE, LLC (Chicago, IL) ANL

Patent Number(s):: 10,020,538

Application Number:: 14/940,667

Contract Number:: AC02-06CH11357

Resource Relation:: Patent File Date: 2015 Nov 13

Research Org:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

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