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1. WO2020108132 - NITRIDED LITHIUM TITANATE-NITRIDED ALUMINUM OXIDE COMPOSITE MATERIAL, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

Publication Number WO/2020/108132
Publication Date 04.06.2020
International Application No. PCT/CN2019/111041
International Filing Date 14.10.2019
IPC
H01M 4/36 2006.01
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
H01M 4/485 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
485of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/62 2006.01
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
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/0525 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
CPC
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 2004/021
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
021Physical characteristics, e.g. porosity, surface area
H01M 2004/027
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
026characterised by the polarity
027Negative electrodes
H01M 4/366
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
362Composites
366as layered products
H01M 4/485
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
485of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/624
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
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
624Electric conductive fillers
Applicants
  • 深圳大学 SHENZHEN UNIVERSITY [CN]/[CN]
Inventors
  • 李瑛 LI, Ying
  • 俞兆喆 YU, Zhaozhe
  • 田冰冰 TIAN, Bingbing
  • 苏陈良 SU, Chenliang
  • 魏堃 WEI, Kun
Agents
  • 深圳市君胜知识产权代理事务所(普通合伙) JOHNSON INTELLECTUAL PROPERTY AGENCY (SHENZHEN)
Priority Data
201811425190.627.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) NITRIDED LITHIUM TITANATE-NITRIDED ALUMINUM OXIDE COMPOSITE MATERIAL, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
(FR) MATÉRIAU COMPOSITE TITANATE DE LITHIUM NITRURÉ-OXYDE D'ALUMINIUM NITRURÉ, SON PROCÉDÉ DE PRÉPARATION ET SON APPLICATION
(ZH) 一种氮化钛酸锂-氮化氧化铝复合材料及其制备方法与应用
Abstract
(EN)
Disclosed by the present invention are a nitrided lithium titanate-nitrided aluminum oxide composite material, a preparation method therefor and an application thereof, the method comprising steps of: respectively dissolving a lithium source and a titanium source in ethanol to obtain lithium source solution and titanium source solution; adding an aluminum source into the lithium source solution and mixing the same with the titanium source solution, then adding acetic acid, stirring the mixture at 40 to 100°C for 4 to 10 hours, drying at 80 to 120°C, dispersing in deionized water, and carrying out spray drying to obtain a lithium titanate-aluminum oxide precursor; carrying out calcination in open air at 400-900°C for 4-18 h, and cooling and grinding to obtain lithium titanate-aluminum oxide composite powder; and heating to 500-1000°C in a protective atmosphere, and maintaining the temperature in a nitrogen-containing atmosphere for 0.5-2h so as to obtain the nitrided lithium titanate-nitrided aluminum oxide composite material. The composite material prepared according to the present invention has good large rate performance, good safety performance and high specific capacity, and may be widely applied to lithium ion batteries and super capacitors required by various portable electronic devices and various electric vehicles.
(FR)
La présente invention concerne un matériau composite titanate de lithium nitruré-oxyde d'aluminium nitruré, son procédé de préparation et son application, le procédé comprenant les étapes consistant à : dissoudre respectivement une source de lithium et une source de titane dans de l'éthanol pour obtenir une solution de source de lithium et une solution de source de titane ; ajouter une source d'aluminium dans la solution de source de lithium et mélanger celle-ci avec la solution de source de titane, puis ajouter de l'acide acétique, agiter le mélange à une température de 40 à 100°C pendant 4 à 10 heures, sécher à une température de 80 à 120 °C, disperser dans de l'eau désionisée, et effectuer un séchage par pulvérisation pour obtenir un précurseur de titanate de lithium-oxyde d'aluminium ; effectuer une calcination dans de l'air libre à une température de 400 à 900 °C pendant 4 à 18 h, et refroidir et broyer pour obtenir une poudre composite de titanate de lithium-oxyde d'aluminium ; et chauffer à une température de 500 à 1000 °C dans une atmosphère protectrice, et maintenir la température dans une atmosphère contenant de l'azote pendant 0,5 à 2 h de façon à obtenir le matériau composite titanate de lithium nitruré-oxyde d'aluminium nitruré. Le matériau composite préparé selon la présente invention présente une bonne performance à grande vitesse, une bonne performance de sécurité et une capacité spécifique élevée, et peut être largement appliqué à des batteries lithium-ion et à des supercondensateurs requis par divers dispositifs électroniques portables et divers véhicules électriques.
(ZH)
本发明公开一种氮化钛酸锂-氮化氧化铝复合材料及其制备方法与应用,其中,方法包括步骤:将锂源和钛源分别溶于乙醇得到锂源溶液和钛源溶液;将铝源加入锂源溶液并与钛源溶液混合后加入乙酸,40~100℃搅拌4~10h,80~120℃烘干,分散在去离子水中,喷雾干燥,得钛酸锂-氧化铝前驱体;在空气中400~900℃煅烧4~18h,冷却,研磨,得钛酸锂-氧化铝复合粉体;在保护气氛中升温至500~1000℃,在含氮气氛中保温0.5~2h,得氮化钛酸锂-氮化氧化铝复合材料。本发明制得的复合材料大倍率性能良好,安全性能良好,比容量高,可广泛应用于各种便携式电子设备和各种电动车所需的锂离子电池和超级电容器。
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