Magnesium salts

Patent metadata

Field	Value
Publication number	US-11817558-B2
Application number	US-201816647473-A
Country	US
Kind code	B2
Filing date	Sep 7, 2018
Priority date	Sep 14, 2017
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

A salt of the formula: Mg[Al(R) 4 ] 2 , where R represents a halogen-free compound selected from a deprotonated alcohol or thiol; or an amine; or a mixture thereof.

First claim

The invention claimed is:

1. A salt comprising:
Mg[Al(R) 4 ] 2 , wherein R represents a halogen-free compound selected from a deprotonated alcohol, a thiol, an amine, or a mixture thereof;
wherein one of the halogen-free deprotonated alcohol, thiol, or amine is aromatic; and
wherein the salt is crystalized from dry DME, diglyme, triglyme, or tetraglyme.

2. The salt of claim 1 , wherein the halogen-free deprotonated alcohol, thiol, amine, or mixture thereof is substituted with a tert-butyl or phenyl.

3. The salt of claim 1 , wherein R represents the halogen-free aromatic deprotonated alcohol.

4. An electrolyte composition comprising a solvent and comprising the salt of claim 1 .

5. The electrolyte composition of claim 4 , wherein the electrolyte composition further comprises an Mg(PF 6 ) 2 additive.

6. A cell or battery comprising the electrolyte composition of claim 4 .

7. The cell or battery of claim 6 , wherein the cell or battery is a magnesium cell or battery or a magnesium-ion cell or battery.

Assignees

• Dyson Technology Ltd

Inventors

• Keyzer Evan
• Lee Jeongjae
• Grey Clare
• Wright Dominic

Classifications

• H01M10/0568 Primary

  characterised by the solutes · CPC title

• C01B6/243

  containing only hydrogen, aluminium and alkali metals, e.g. Li(AlH4) · CPC title

• C01B25/10

  Halides or oxyhalides of phosphorus · CPC title

• C07F5/069

  without C-aluminium linkages · CPC title

• H01M10/054 Primary

  Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium · CPC title