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1. WO2020134736 - ELECTRODE PLATE, ELECTROCHEMICAL DEVICE, BATTERY MODULE, BATTERY PACK, AND APPARATUS

Publication Number WO/2020/134736
Publication Date 02.07.2020
International Application No. PCT/CN2019/119739
International Filing Date 20.11.2019
IPC
H01M 4/02 2006.1
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
H01M 4/04 2006.1
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
04Processes of manufacture in general
H01M 4/62 2006.1
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 4/66 2006.1
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
CPC
H01M 10/4235
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
4235Safety or regulating additives or arrangements in electrodes, separators or electrolyte
H01M 4/02
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
H01M 4/0404
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
04Processes of manufacture in general
0402Methods of deposition of the material
0404by coating on electrode collectors
H01M 4/136
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
136Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/621
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
621Binders
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
  • 宁德时代新能源科技股份有限公司 CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED [CN]/[CN]
Inventors
  • 李静 LI, Jing
  • 李伟 LI, Wei
  • 薛庆瑞 XUE, Qingrui
  • 张子格 ZHANG, Zige
  • 杨献伟 YANG, Xianwei
Agents
  • 北京汇思诚业知识产权代理有限公司 UNI-INTEL PATENT AND TRADEMARK LAW FIRM
Priority Data
201811642323.529.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) ELECTRODE PLATE, ELECTROCHEMICAL DEVICE, BATTERY MODULE, BATTERY PACK, AND APPARATUS
(FR) PLAQUE D'ÉLECTRODE, DISPOSITIF ÉLECTROCHIMIQUE, MODULE DE BATTERIE, BLOC-BATTERIE ET APPAREIL
(ZH) 一种电极极片、电化学装置、电池模块、电池包和设备
Abstract
(EN)
The present application relates to the field of batteries, and in particular relates to an electrode plate, an electrochemical device, a battery module, a battery pack, and an apparatus. The electrode plate of the present application comprises a current collector and an electrode active material layer disposed on at least one surface of the current collector, wherein the current collector comprises a support layer and a conductive layer disposed on at least one surface of the support layer, and a single-side thickness D2 of the conductive layer satisfies: 30 nm ≤ D2 ≤ 3 μm. A conductive primer layer containing a conductive material and a binder is further provided between the current collector and the electrode active material layer, and the binder in the conductive primer layer comprises an acrylic- or acrylate-based aqueous binder. The electrode plate of the present application has good processability, and the electrochemical device comprising said electrode plate has high energy density, good electrical performance, and long-term reliability.
(FR)
La présente invention concerne le domaine des batteries, et concerne en particulier une plaque d'électrode, un dispositif électrochimique, un module de batterie, un bloc-batterie et un appareil. La plaque d'électrode de la présente invention comprend un collecteur de courant et une couche de matériau actif d'électrode disposée sur au moins une surface du collecteur de courant, le collecteur de courant comprenant une couche de support et une couche conductrice disposée sur au moins une surface de la couche de support, et une épaisseur de côté unique D2 de la couche conductrice satisfaisant : 30 nm ≤ D2 ≤ 3 μm. Une couche d'apprêt conductrice contenant un matériau conducteur et un liant est en outre disposée entre le collecteur de courant et la couche de matériau actif d'électrode, et le liant dans la couche d'apprêt conductrice comprend un liant aqueux à base d'acrylique ou d'acrylate. La plaque d'électrode de la présente invention présente une bonne aptitude au traitement, et le dispositif électrochimique comprenant ladite plaque d'électrode présente une densité d'énergie élevée, une bonne performance électrique et une fiabilité à long terme.
(ZH)
本申请涉及电池领域,具体地讲,涉及一种电极极片、电化学装置、电池模块、电池包和设备。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所述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,且所述导电底涂层中的粘结剂包含丙烯酸基/丙烯酸酯基水性粘结剂。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。
Also published as
Latest bibliographic data on file with the International Bureau