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1. WO2020134763 - METHOD FOR PREPARING BATTERY SEPARATOR WITH HIGH ION CONDUCTIVITY AND LITHIUM ION BATTERY CONTAINING SAME

Publication Number WO/2020/134763
Publication Date 02.07.2020
International Application No. PCT/CN2019/120258
International Filing Date 22.11.2019
IPC
H01M 2/14 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
14Separators; Membranes; Diaphragms; Spacing elements
H01M 2/16 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
14Separators; Membranes; Diaphragms; Spacing elements
16characterised by the material
H01M 10/0525 2010.1
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 50/403
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
40Separators; Membranes; Diaphragms; Spacing elements inside cells
403Manufacturing processes of separators, membranes or diaphragms
H01M 50/411
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
40Separators; Membranes; Diaphragms; Spacing elements inside cells
409Separators, membranes or diaphragms characterised by the material
411Organic material
H01M 50/431
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
40Separators; Membranes; Diaphragms; Spacing elements inside cells
409Separators, membranes or diaphragms characterised by the material
431Inorganic material
H01M 50/449
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
40Separators; Membranes; Diaphragms; Spacing elements inside cells
409Separators, membranes or diaphragms characterised by the material
449having a layered structure
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
  • 珠海冠宇电池股份有限公司 ZHUHAI COSMX BATTERY CO., LTD. [CN]/[CN]
Inventors
  • 张祖来 ZHANG, Zulai
  • 徐延铭 XU, Yanming
  • 李俊义 LI, Junyi
  • 李素丽 LI, Suli
Agents
  • 北京同立钧成知识产权代理有限公司 LEADER PATENT & TRADEMARK FIRM
Priority Data
201811584335.724.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR PREPARING BATTERY SEPARATOR WITH HIGH ION CONDUCTIVITY AND LITHIUM ION BATTERY CONTAINING SAME
(FR) PROCÉDÉ DESTINÉ À PRÉPARER UN SÉPARATEUR DE BATTERIE À HAUTE CONDUCTIVITÉ IONIQUE ET BATTERIE LITHIUM-ION LE CONTENANT
(ZH) 一种高离子导通性电池隔膜的制备方法及含有该隔膜的锂离子电池
Abstract
(EN)
Disclosed are a method for preparing a battery separator with a high ion conductivity and a lithium ion battery containing same, which belong to the technical field of lithium ion batteries. The method specifically comprises the following steps: uniformly mixing inorganic ceramic particles, a dispersant and water, then adding a binder and uniformly mixing same, adding a second binder and a wetting agent and uniformly mixing same to obtain a slurry; uniformly applying the prepared slurry on the surface of a polyolefin substrate separator by means of a separator coating machine. The present application has advantages that the separator of the present application has a high ionic conductivity, which can realize the high-rate charge and discharge performance of a lithium ion battery; the separator of the present application can be used as an auxiliary positive electrode material and provides a lithium ion store, which improves the charge and discharge specific capacity and the rate performance of a lithium ion battery; and a lithium ion battery using the separator of the present application has enough lithium ions and can maintain excellent power and cycle properties of the lithium ion battery over the long-term.
(FR)
L’invention concerne un procédé destiné à préparer un séparateur de batterie à haute conductivité ionique et une batterie lithium-ion le contenant, lesquels appartiennent au champ technique des batteries lithium-ion. Les étapes du procédé consistent en particulier : à mélanger uniformément des particules de céramique inorganique, un dispersant et de l’eau, puis à ajouter un liant et à les mélanger uniformément, à ajouter un deuxième liant et un agent mouillant et à les mélanger uniformément pour obtenir une pâte ; à appliquer uniformément la pâte préparée sur la surface d’un séparateur de substrat de polyoléfines au moyen d’une machine de revêtement de séparateur. La présente invention a les avantages que le séparateur selon la présente invention a une haute conductivité ionique, ce qui permet de réaliser la haute performance de charge et de décharge d’une batterie lithium-ion ; le séparateur selon la présente invention peut servir de matériau d’électrode positive auxiliaire et assure une accumulation d’ions lithium, ce qui améliore la capacité spécifique de charge et de décharge et la performance de débit d’une batterie lithium-ion ; et une batterie lithium-ion utilisant le séparateur selon la présente invention a suffisamment d’ions lithium et peut maintenir d’excellentes propriétés de puissance et de cycle de la batterie lithium-ion à long terme.
(ZH)
一种高离子导通性电池隔膜的制备方法及含有该隔膜的锂离子电池,属于锂离子电池技术领域。所述方法具体如下:先将无机陶瓷颗粒、分散剂和水混合均匀,再加入粘接剂混合均匀,加入第二粘接剂、润湿剂混合均匀,得到浆料,通过隔膜涂覆机将制备好的浆料均匀涂覆在聚烯烃基材隔膜表面即可。本申请的优点是:本申请的隔膜,具有离子导电性高,能够实现锂离子电池的大倍率充放电性能。本申请的隔膜,可以作为一种辅助的正极材料,提供一个锂离子库,提高锂离子电池的充放电比容量及倍率性能。采用本申请的隔膜的锂离子电池,具有足够的锂离子,能够保持锂离子电池长期优异的功率性能、循环性能。
Also published as
Latest bibliographic data on file with the International Bureau