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1. WO2008039806 - SURFACE AND BULK MODIFIED HIGH CAPACITY LAYERED OXIDE CATHODES WITH LOW IRREVERSIBLE CAPACITY LOSS

Publication Number WO/2008/039806
Publication Date 03.04.2008
International Application No. PCT/US2007/079466
International Filing Date 25.09.2007
IPC
H01M 4/50 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
50of manganese
H01M 4/52 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
52of nickel, cobalt or iron
CPC
H01M 4/505
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
50of manganese
505of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
52of nickel, cobalt or iron
525of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
Applicants
  • BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM [US]/[US] (AllExceptUS)
  • MANTHIRAM, Arumugam [US]/[US] (UsOnly)
  • WU, Yan [CN]/[US] (UsOnly)
Inventors
  • MANTHIRAM, Arumugam
  • WU, Yan
Agents
  • FLORES, Edwin
Priority Data
60/847,01425.09.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SURFACE AND BULK MODIFIED HIGH CAPACITY LAYERED OXIDE CATHODES WITH LOW IRREVERSIBLE CAPACITY LOSS
(FR) CATHODES D'OXYDE MULTI COUCHES À CAPACITÉ ÉLEVÉE MODIFIÉES EN SURFACE ET EN MASSE AVEC FAIBLE PERTE DE CAPACITÉ IRREVERSIBLE
Abstract
(EN)
The present invention includes compositions, surface and bulk modifications, and methods of making of (1-x)Li[Li1/3Mn2/3]O2-xLi[Mn0.5-yNi0.5-yCO2y]O2 cathode materials having an O3 crystal structure with a x value between 0 and 1 and y value between 0 and 0.5, reducing the irreversible capacity loss in the first cycle by surface modification with oxides and bulk modification with cationic and anionic substitutions, and increasing the reversible capacity to close to the theoretical value of insertion/extraction of one lithium per transition metal ion (250 - 300 mAh/g).
(FR)
L'invention concerne des compositions, des modifications de surface et de masse, et des procédés de production de matériaux cathodiques à base de (1-x)Li[Li1/3Mn2/3]O2-xLi[Mn0.5-yNi0.5-yCO2y]O2 présentant une structure cristalline O3, une valeur x étant comprise entre 0 et 1 et une valeur y étant comprise entre 0 et 0,5, qui permettent de réduire la perte de capacité irréversible dans un premier cycle par modification de surface au moyen d'oxydes et modification de masse au moyen de substitutions cationiques et anioniques, et d'augmenter la capacité reversible jusqu'à une valeur théorique d'insertion/extraction d'un lithium par ion de métal de transition (250 - 300 mAh/g).
Also published as
Latest bibliographic data on file with the International Bureau