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US 2016/0111720 A1Published application
Metastable vanadium oxide cathode materials for rechargeable magnesium battery
AssigneeToyota Motor Engineering & Manufacturing North America, Inc.
InventorsTimothy S. ARTHUR, Fuminori MIZUNO, Ruigang ZHANG
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Abstract
A magnesium electrochemical cell having a positive electrode containing as an active ingredient, a material of formula [V2O5]c [MaOb] d and/or a material of formula [V2O5]c[MaOb]d[MgXe]g in a metastable structural and morphological phase is provided. In the formulas M is an element selected from the group consisting of P, B, Si, Ge and Mo; and X is 0 or a halide.
Claims20
A cathode for a magnesium battery comprising:
- a current collector;
- and
- an active material of formula (I):
- [V2O5]c[MaOb]d (I)
- wherein
- M is an element selected from the group consisting of P, B, Si, Ge and Mo,
- a is an integer of from 1 to 2,
- b is an integer of from 1 to 5,
- c is from 35 to 80 mol %,
- d is from 20 to 65 mol %, and
- the active material of formula (I) is a metastable structural and morphological phase between an amorphous phase and a crystalline phase.
8 more elements
A cathode for a magnesium battery comprising:
- a current collector;
- and
- an active material of formula (II):
- [V2O5]c[MaOb]d[MgXe]g (II)
- wherein M is an element selected from the group consisting of P, B, Si, Ge and Mo, X is O, F, Cl, Br, or I, a is an integer of from 1 to 2, b is an integer of from 1 to 5, c is from 35 to 80 mol %, g is from greater than 0 to 25 mol %, e is 1 when X is O, e is 2 when X is F, Cl, Br, or I, and the sum of c, d and g is substantially 100%, and the active material of formula (II) is a metastable structural and morphological phase between an amorphous phase and a crystalline phase.
2 more elements
A magnesium battery comprising:
- an anode;
- a cathode;
- and
- an electrolyte;
- wherein the cathode comprises:
- an active material of formula (I):
- [V2O5]c[MaOb]d (I)
- wherein
- M is an element selected from the group consisting of P, B, Si, Ge and Mo,
- a is an integer of from 1 to 2,
- b is an integer of from 1 to 5,
- c is from 35 to 80 mol %,
- d is from 20 to 65 mol %, and
- the active material of formula (I) is a metastable structural and morphological phase between an amorphous phase and a crystalline phase.
11 more elements
A magnesium battery comprising:
- an anode;
- a cathode;
- and
- an electrolyte;
- wherein the cathode comprises:
- an active material of formula (II):
- [V2O5]c[MaOb]d[MgXe]g (II)
- wherein M is an element selected from the group consisting of P, B, Si, Ge and Mo, X is O, F, Cl, Br, or I, a is an integer of from 1 to 2, b is an integer of from 1 to 5, c is from 35 to 80 mol %, g is from greater than 0 to 25 mol %, e is 1 when X is O, e is 2 when X is F, Cl, Br, or I, and the sum of c, d and g is substantially 100% and the active material of formula (II) is a metastable structural and morphological phase between an amorphous phase and a crystalline phase.
5 more elements
Dependencies are inferred from the claim text.