Electrode compositions based on an amorphous alloy having a high silicon content
Assignee3M Innovative Properties Company
InventorsLeif Christensen, Mark N. Obrovac
Life of this patent
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Abstract
An electrode composition for a lithium ion battery that includes an amorphous alloy having the formula SixMyAlz where x, y, and z represent atomic percent values and (a) x+y+z=100, (b) x≧55, (c) y<22, (d) z>0, and (e) M is one or more metals selected from the group consisting of manganese, molybdenum, niobium, tungsten, tantalum, iron, copper, titanium, vanadium, chromium, nickel, cobalt, zirconium, yttrium, and combinations thereof.
Claims14
An electrode composition for a lithium ion battery comprising an amorphous alloy having the formula SixMyAlz where x, y, and z represent atomic percent values and:
- (a) x+y+z=100;
- (b) x≧55;
- (c) 15<y<22;
- (d) z>0;
- and
- (e) M represents no more than two metals selected from the group consisting of manganese, molybdenum, niobium, tungsten, tantalum, iron, copper, titanium, vanadium, chromium, nickel, cobalt, zirconium, yttrium, and combinations thereof, and M includes titanium, zirconium, or both.
A lithium ion battery comprising:
- (a) an anode;
- (b) a cathode;
- and
- (c) an electrolyte,
- wherein the anode comprises an amorphous alloy having the formula SixMyAlz where x, y, and z represent atomic percent values and:
- (i) x+y+z=100;
- (ii) x≧55;
- (iii) 15<y<22;
- (iv) z>0;
- and
- (v) M represents no more than two metals selected from the group consisting of manganese, molybdenum, niobium, tungsten, tantalum, iron, copper, titanium, vanadium, chromium, nickel, cobalt, zirconium, yttrium, and combinations thereof, and M includes titanium, zirconium, or both.
Dependencies are inferred from the claim text.