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1. WO2020156200 - SODIUM ION BATTERY AND APPARATUS CONTAINING SODIUM ION BATTERY

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Publication Number WO/2020/156200
Publication Date 06.08.2020
International Application No. PCT/CN2020/072453
International Filing Date 16.01.2020
IPC
H01M 4/36 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
36Selection of substances as active materials, active masses, active liquids
CPC
H01M 10/054
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
054Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
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 2004/028
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
028Positive electrodes
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 4/36
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
Applicants
  • 宁德时代新能源科技股份有限公司 CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED [CN]/[CN]
Inventors
  • 刘倩 LIU, Qian
  • 郭永胜 GUO, Yongsheng
  • 梁成都 LIANG, Chengdu
  • 林文光 LIN, Wenguang
  • 王钢 WANG, Gang
Agents
  • 北京东方亿思知识产权代理有限责任公司 BEIJING EAST IP LTD.
Priority Data
201910107675.902.02.2019CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) SODIUM ION BATTERY AND APPARATUS CONTAINING SODIUM ION BATTERY
(FR) BATTERIE SODIUM-ION ET APPAREIL CONTENANT LA BATTERIE SODIUM-ION
(ZH) 钠离子电池和包含钠离子电池的装置
front page image
Abstract
(EN) Disclosed in the present application is a sodium ion battery and an apparatus containing the sodium ion battery. The sodium ion battery comprises a positive pole and a negative pole; the positive pole comprises a positive current collector and a positive active material layer that is disposed on at least one surface of the positive current collector and that contains a positive active material; the negative pole comprises a negative current collector and a negative active material layer that is disposed on at least one surface of the negative current collector and that contains a negative active material, the negative active material being hard carbon; the ratio of the median particle size A of the positive active material to the median particle size B of the negative active material satisfies 0.05≤A/B≤3.
(FR) La présente invention concerne une batterie sodium-ion et un appareil contenant la batterie sodium-ion. La batterie sodium-ion comprend un pôle positif et un pôle négatif ; le pôle positif comprend un collecteur de courant positif et une couche de matériau actif positif qui est disposée sur au moins une surface du collecteur de courant positif et qui contient un matériau actif positif ; le pôle négatif comprend un collecteur de courant négatif et une couche de matériau actif négatif qui est disposée sur au moins une surface du collecteur de courant négatif et qui contient un matériau actif négatif, le matériau actif négatif étant du carbone dur ; le ratio de la taille de particules médiane (A) du matériau actif positif par rapport à la taille de particules médiane (B) du matériau actif négatif satisfait la relation 0,05 ≤ A/B ≤ 3.
(ZH) 本申请公开了一种钠离子电池和包含钠离子电池的装置。钠离子电池包括正极极片和负极极片；所述正极极片包括正极集流体以及设置在所述正极集流体至少一个表面上且包含正极活性材料的正极活性物质层；所述负极极片包括负极集流体以及设置在所述负极集流体至少一个表面上且包含负极活性材料的负极活性物质层，所述负极活性材料为硬碳；其中，所述正极活性材料的中值粒径A与所述负极活性材料的中值粒径B之比满足0.05≤A/B≤3。
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