US 10,256,468 B2 · Positive electrode active material for magnesium secondary battery, positive electrode for magnesium secondary battery, and magnesium secondary battery

Abstract

A positive electrode active material for a magnesium secondary battery, and a positive electrode for a magnesium secondary battery and a magnesium secondary battery in which the positive electrode active material is used are provided. The positive electrode active material consists of a magnesium composite oxide which is represented by Formula (1): MgxM1yM2zO2 and which has a rock salt-type crystal structure of space group Fm-3m. In Formula (1), M1 is Ni, Co, or Mn, M2 is different from M1 and is at least one element selected from the group consisting of Ni, Co, Mn, Ti, V, Cr, Fe, Cu, Nb, W, Mo, and Ru, 0<x≤1, 0<y<2, 0<z<1; and 1.5≤x+y+z≤2.0.

Claims12

Dependent claims

A positive electrode active material for a magnesium secondary battery, the positive electrode active material consisting of a magnesium composite oxide that is represented by the following Formula (1) and that has a rock salt-type crystal structure of space group Fm-3m:

MgxM1yM2zO2 (1)
wherein, in Formula (1), M1 is Ni, Co, or Mn;
M2 is different from M1 and is at least one element selected from the group consisting of Ni, Co, Mn, Ti, V, Cr, Fe, Cu, Nb, W, Mo, and Ru;
0<x≤1;
0<y<2;
0<z<1;
and
1.5≤x+y+z≤2.0.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/580,494Filed 6 Jun 2016

Priority

JP 2015-11781010 Jun 2015

Published

US 2018/0183058 A128 Jun 2018

Granted

9 Apr 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

H01M 4/525
Of nickel, cobalt or iron: of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g.…
C01G 53/66
Complex oxides containing nickel and at least one other metal element: containing alkaline earth metals, e.g. SrNiO3 or SrNiO2
H01M 4/505
Of manganese: of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 10/054
Accumulators with non-aqueous electrolyte: accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium

Positive electrode active material for magnesium secondary battery, positive electrode for magnesium secondary battery, and magnesium secondary battery

Life of this patent

Positive electrode active material for magnesium secondary battery, positive electrode for magnesium secondary battery, and magnesium secondary battery

Life of this patent

Abstract

Claims12