Processing

Please wait...

Settings

Settings

Goto Application

1. CN110661001 - Electrode pole sheet and electrochemical device

Office
China
Application Number 201811638405.2
Application Date 29.12.2018
Publication Number 110661001
Publication Date 07.01.2020
Grant Number 110661001
Grant Date 01.12.2020
Publication Kind B
IPC
H01M 4/66
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
64Carriers or collectors
66Selection of materials
H01M 4/13
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
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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
CPC
H01M 4/13
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
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
H01M 4/667
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
64Carriers or collectors
66Selection of materials
665Composites
667in the form of layers, e.g. coatings
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
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 NINGDE CONTEMPORARY AMPEREX TECHNOLOGY CO., LTD.
宁德时代新能源科技股份有限公司
Inventors LIANG CHENGDU
梁成都
LI JING
李静
LI WEI
李伟
XUE QINGRUI
薛庆瑞
ZHANG ZIGE
张子格
ZHANG YANG
张扬
Agents 北京东方亿思知识产权代理有限责任公司 11258
Title
(EN) Electrode pole sheet and electrochemical device
(ZH) 一种电极极片和电化学装置
Abstract
(EN)
The invention belongs to the field of batteries and relates to an electrode pole sheet and an electrochemical device. The electrode pole sheet comprises a current collector and an electrode active material layer arranged on at least one surface of the current collector; the current collector comprises a supporting layer and a conductive layer arranged on at least one surface of the supporting layer; the single-surface thickness D2 of the conductive layer meets a relation that D2 is more than or equal to 30nm and less than or equal to 3 micrometers; a conductive priming coat containing a conductive material and a binder is arranged between the current collector and the electrode active material layer; and the conductive material of the conductive priming coat contains at least one materialselected from a one-dimensional conductive material and a two-dimensional conductive material. The electrode pole sheet has good machinability. The electrochemical device comprising the electrode polesheet has high energy density, good electrical performance and long-term reliability.

(ZH)
本申请涉及电池领域,具体地讲,涉及一种电极极片和电化学装置。本申请的电极极片包括集流体和设置于所述集流体至少一个表面上的电极活性材料层,其中,所述集流体包括支撑层和设置于支撑层至少一个表面上的导电层,所述导电层的单面厚度D2满足:30nm≤D2≤3μm,且在所述集流体与所述电极活性材料层之间还设置有包含导电材料和粘结剂的导电底涂层,且所述导电底涂层的导电材料中含有一维导电材料、二维导电材料中的至少一种。本申请的电极极片具有良好的可加工性,包含该电极极片的电化学装置具有高的能量密度和良好的电性能以及长期可靠性。

Related patent documents