Boron containing electrolytes and methods of forming boron containing electrolytes for magnesium batteries
AssigneeToyota Motor Engineering & Manufacturing North America, Inc.
InventorsRana Mohtadi, Oscar Tutusaus
Life of this patent
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Abstract
A method of forming an electrolyte includes combining a magnesium closo-borate-organic solvent salt with an organic cation-anion salt, and removing the organic solvent from the magnesium closo-borate-organic solvent salt and to form an electrolyte comprising a magnesium closo-borate salt/organic cation-anion salt mixture. The magnesium closo-borate salt can have the structure Mg(CyBa−yHa−zXz)(2−(1−y)) where: y is 0 or 1; a is 10 or 12; z is 0 to a; and X is independently halogen, alkyl, alkoxy, acyl, aryl, alkylaryl, arylalkyl, and/or aryloxy substituents and wherein alkyl groups can be linear, branched, or cyclic. Also, any of the substituents can be partially or fully halogenated.
Claims20
A method comprising:
- forming a salt mixture in an organic solvent, the salt mixture consisting of a magnesium closo-borate-organic solvent salt and an organic cation closo-borate salt, comprising:
- synthesizing the magnesium closo-borate-organic solvent salt in the organic solvent;
- subsequently mixing or simultaneously synthesizing the organic cation closo-borate salt with the magnesium closo-borate-organic solvent salt in the organic solvent;
- and
- separating the salt mixture from reaction byproducts of the synthesizing the magnesium closo-borate-organic solvent salt;
- heating the salt mixture such that the organic solvent is removed therefrom;
- and
- forming a soft solid electrolyte comprising an organic plastic crystal and the organic solvent-free salt mixture by mixing the organic plastic crystal and the salt mixture before or after heating the salt mixture, a content of the organic plastic crystal being from about 10 wt. % to about 70 wt. % of the soft solid electrolyte.
A method comprising:
- forming a salt mixture in an organic solvent, and another organic solvent, the another organic solvent comprising an organic plastic crystal, or an individual component thereof, the salt mixture consisting of a magnesium closo-borate-organic solvent salt with an organic cation closo-borate salt, comprising:
- synthesizing the magnesium closo-borate-organic solvent salt in the organic solvent;
- subsequently mixing or simultaneously synthesizing the organic cation closo-borate salt with the magnesium closo-borate-organic solvent salt in the organic solvent;
- and
- separating the salt mixture from reaction byproducts of the synthesizing the magnesium closo-borate-organic solvent salt;
- and
- heating the salt mixture and the organic plastic crystal, or the individual component thereof, thereby removing the organic solvent therefrom;
- and
- forming a soft solid electrolyte comprising the salt mixture and the organic plastic crystal free of the organic solvent, a content of the organic plastic crystal in the soft solid electrolyte being from about 10 wt. % to about 70 wt. %.
Dependencies are inferred from the claim text.