Processing

Please wait...

Settings

Settings

1. WO2020002246 - SACRIFICIAL ACTIVE MATERIAL OF A POSITIVE ELECTRODE FOR A SODIUM-ION ELECTROCHEMICAL ELEMENT

Publication Number WO/2020/002246
Publication Date 02.01.2020
International Application No. PCT/EP2019/066686
International Filing Date 24.06.2019
IPC
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139
Processes of manufacture
1391
of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
48
of inorganic oxides or hydroxides
50
of manganese
505
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
054
Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
04
Processes of manufacture in general
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
131
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
131
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
1315
containing halogen atoms, e.g. LiCoOxFy
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
48
of inorganic oxides or hydroxides
52
of nickel, cobalt or iron
525
of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
58
of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
H01M 4/1391 (2010.01)
H01M 4/36 (2006.01)
H01M 4/505 (2010.01)
H01M 10/054 (2010.01)
H01M 4/04 (2006.01)
H01M 4/131 (2010.01)
CPC
H01M 10/054
H01M 2004/028
H01M 4/0471
H01M 4/131
H01M 4/1315
H01M 4/1391
Applicants
  • SAFT [FR/FR]; 26 Quai Charles Pasqua 92300 Levallois-perret, FR
  • ENSICAEN [FR/FR]; 6 Boulevard Maréchal Juin 14050 Caen Cedex 4, FR
  • UNIVERSITE DE CAEN NORMANDIE [FR/FR]; Esplanade de la Paix 14000 Caen, FR
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) [FR/FR]; 3, rue Michel Ange 75794 Paris Cedex 16, FR
Inventors
  • GARITTE, Emmanuelle; FR
  • GILLOT, Stéphane; FR
  • JORDY, Christian; FR
  • PRALONG, Valérie; FR
  • ADAMCZYK, Evan; FR
Agents
  • HIRSCH & ASSOCIES; 137 rue de l'Université 75007 Paris, FR
Priority Data
185569026.06.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) SACRIFICIAL ACTIVE MATERIAL OF A POSITIVE ELECTRODE FOR A SODIUM-ION ELECTROCHEMICAL ELEMENT
(FR) MATIERE ACTIVE SACRIFICIELLE D'ELECTRODE POSITIVE POUR ELEMENT ELECTROCHIMIQUE SODIUM-ION
Abstract
(EN)
The invention relates to a positive electrode for a sodium-ion electrochemical element, said electrode comprising a compound of formula NaxMn(l-y)MyO4+y.(n-8+x)/2+z in which: 2.5 ≤ x ≤ 6.5; 0 ≤ y ≤ 0.5; -0.2≤ z ≤ 0.2; n being the degree of oxidation of M in the compound and being between 2 and 5, and M being selected from the group consisting of Fe, Co, Ni, B, Al, Ti, Si, V, Mo, Zr and a mixture thereof where n=2 or 3 for M=Fe, Co, Ni, n=3 for M=B, Al, n=3 to 5 for M=V, Mo, and n=4 for M=Si, Zr, Ti. The use of the compound as a sacrificial active material of a positive electrode of a sodium-ion element allows an increase of approximately 10% in the reversible mass capacity of said element.
(FR)
Une électrode positive pour élément électrochimique sodium-ion, ladite électrode comprenant un composé de formule NaxMn(l-y)MyO4+y.(n-8+x)/2+z dans laquelle: 2,5 ≤ x ≤ 6,5; 0 ≤ y ≤ 0,5; -0,2≤ z ≤ 0,2; n est le degré d'oxydation de M dans le composé et n va de 2 à 5; M étant choisi dans le groupe consistant en Fe, Co, Ni, B, Al, Ti, Si, V, Mo, Zr et un mélange de ceux-ci avec n=2 ou 3 pour M=Fe, Co, Ni, n=3 pour M=B, Al, n=3 à 5 pour M=V, Mo, n=4 pour M=Si, Zr, Ti. L'utilisation du composé comme matière active sacrificielle d'une électrode positive d'un élément sodium-ion permet d'augmenter d'environ 10% la capacité massique réversible de cet élément.
Latest bibliographic data on file with the International Bureau