Electro-polymerized protective layer for 3D magnesium battery
AssigneeToyota Motor Engineering & Manufacturing North America, Inc.
InventorsTimothy S. Arthur, Nikhilendra Singh
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Abstract
Methods for forming polymeric protective layers on magnesium anodes for magnesium batteries include placing a solution of electropolymerizable monomers onto all exposed surfaces of a magnesium anode, and electropolymerizing the monomers in the solution. The monomers can be glycidyl methacrylate, a salt of 3-sulfopropyl methacrylate, or a mixture of the two. Protected magnesium foam anodes for 3-D magnesium batteries have a magnesium foam electrolyte, and a polymeric coating covering all exposed surfaces of the magnesium foam electrolyte. The polymeric protective coating formed of (poly)glycidyl methacrylate, poly(3-sulfopropyl methacrylate), or a copolymer of the two.
Claims13
A method for protecting a magnesium anode, the method comprising:
- contacting all exposed surfaces of the magnesium anode with a monomer solution containing at least one monomer selected from the group consisting of:
- glycidyl methacrylate (GMA);
- and
- a salt of 3-sulfopropyl methacrylate (SPA);
- and
- electropolymerizing the at least one monomer in the monomer solution, thereby forming a polymeric protective layer on all exposed surfaces of the magnesium anode.
Dependencies are inferred from the claim text.