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1. WO2022247586 - BATTERY FORMATION METHOD AND FORMATION APPARATUS

Publication Number WO/2022/247586
Publication Date 01.12.2022
International Application No. PCT/CN2022/090446
International Filing Date 29.04.2022
IPC
H01M 10/44 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
H01M 10/058 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
058Construction or manufacture
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 10/058
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
058Construction or manufacture
H01M 10/446
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
44Methods for charging or discharging
446Initial charging measures
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
Y02P 70/50
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
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
70Climate change mitigation technologies in the production process for final industrial or consumer products
50Manufacturing or production processes characterised by the final manufactured product
Applicants
  • 蜂巢能源科技股份有限公司 SVOLT ENERGY TECHNOLOGY CO., LTD [CN]/[CN]
Inventors
  • 高阳阳 GAO, Yangyang
  • 孙光伟 SUN, Guangwei
  • 汪文秀 WANG, Wenxiu
  • 孙晓辉 SUN, Xiaohui
  • 杨树涛 YANG, Shutao
Agents
  • 石家庄旭昌知识产权代理事务所(特殊普通合伙) SHIJIAZHUANG XUCHANG INTELLECTUAL PROPERTY AGENCY OFFICE (LIMITED LIABILITY PARTNERSHIP)
Priority Data
202110573415.825.05.2021CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) BATTERY FORMATION METHOD AND FORMATION APPARATUS
(FR) PROCÉDÉ DE FORMATION DE BATTERIE ET APPAREIL DE FORMATION
(ZH) 电池化成方法及化成装置
Abstract
(EN) The present disclosure relates to a battery formation method and formation apparatus, the battery formation method of the present disclosure comprising performing multi-step processing on a battery in sequence, and shelving the battery for a preset shelving time between adjacent formation processing steps; each formation processing step comprises a first processing step and a second processing step performed cyclically; the first processing step comprises charging the battery with a preset current for a first preset charging time when the interior of the battery is in a negative pressure state; the second processing step comprises charging the battery with a preset current for a second preset charging time when the interior of the battery is in a normal pressure state; the preset current and the degree of vacuum of the negative pressure state in each formation processing step are set to increase incrementally according to the implementation order of the formation processing steps, and the second preset charging time is less than the first preset charging time. The battery formation method disclosed in the present invention can extract gas in a timely manner and enable the battery to form a better SEI film.
(FR) La présente invention concerne un procédé de formation de batterie et un appareil de formation, le procédé de formation de batterie de la présente invention consistant à réaliser un traitement à étapes multiples sur une batterie en séquence, et ranger la batterie pendant un temps de rangement prédéfini entre des étapes de traitement de formation adjacentes ; chaque étape de traitement de formation comprenant une première étape de traitement et une seconde étape de traitement réalisées de manière cyclique ; la première étape de traitement consiste à charger la batterie avec un courant prédéfini pendant un premier temps de charge prédéfini lorsque l'intérieur de la batterie est dans un état de pression négative ; la seconde étape de traitement consiste à charger la batterie avec un courant prédéfini pendant un second temps de charge prédéfini lorsque l'intérieur de la batterie est dans un état de pression normale ; le courant prédéfini et le degré de vide de l'état de pression négative dans chaque étape de traitement de formation sont réglés pour augmenter de manière incrémentielle selon l'ordre de mise en œuvre des étapes de traitement de formation, et le second temps de charge prédéfini est inférieur au premier temps de charge prédéfini. Le procédé de formation de batterie selon la présente invention peut extraire du gaz d'une manière opportune et permettre à la batterie de former un meilleur film SEI.
(ZH) 本公开涉及一种电池化成方法及化成装置,本公开的电池化成方法包括对电池依次进行多步化成处理,并在相邻各步化成处理之间将电池搁置预设搁置时间;各步化成处理均包括循环进行的第一处理步骤和第二处理步骤;第一处理步骤包括在电池内部为负压状态时,采用预设电流对电池进行第一预设充电时间的充电;第二处理步骤包括在电池内部为常压状态时,采用预设电流对电池进行第二预设充电时间的充电;同时,按各步化成处理的进行顺序,各步化成处理中的预设电流和负压状态的真空度均递增设置,且第二预设充电时间小于第一预设充电时间。本公开所述的电池化成方法,不仅能够将气体及时抽出,而且能够使电池形成较好的SEI膜。
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