WO2025180247 - SEALING DEVICE, BATTERY CASE COMPONENT, BATTERY CELL AND HIGH-CAPACITY BATTERY
National phase entry is expected:
Publication Number
WO/2025/180247
Publication Date
04.09.2025
International Application No.
PCT/CN2025/077544
International Filing Date
17.02.2025
Title **
[English]
SEALING DEVICE, BATTERY CASE COMPONENT, BATTERY CELL AND HIGH-CAPACITY BATTERY
[French]
DISPOSITIF D'ÉTANCHÉITÉ, COMPOSANT DE BOÎTIER DE BATTERIE, ÉLÉMENT DE BATTERIE ET BATTERIE À HAUTE CAPACITÉ
[Chinese]
一种密封装置、电池壳体构件、单体电池及大容量电池
Applicants **
D-AUS ENERGY STORAGE TECHNOLOGY (XI'AN) CO., LTD
Inventors
LEI, Zhengjun
CHEN, Mengqi
LI, Kun
ZHENG, Gaofeng
Priority Data
202420383282.7
29.02.2024
CN
202410410740.6
08.04.2024
CN
202421027588.5
13.05.2024
CN
202422910271.2
28.11.2024
CN
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| Number of Office Actions | * |
| * | |
International Searching Authority |
CNIPA
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
|
* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2605 | |
| EPO | Filing, Examination, Granting | 24402 | |
| Japan | Filing, Examination, Granting | 2962 | |
| South Korea | Filing, Examination, Granting | 3825 | |
| USA | Filing, Examination, Granting | 9340 |
Total:
43,134
Contact Us
Abstract[English]
Provided in the present application are a sealing device, a battery case component, a battery cell and a high-capacity battery. The sealing device comprises a dissolvable layer and an isolation layer attached to the dissolvable layer, wherein the dissolvable layer is made of an electrolyte-soluble material; the material of the isolation layer is insoluble in an electrolyte; and when the battery cell is unsealed, the dissolvable layer is dissolved in the electrolyte, the isolation layer loses the support from the dissolvable layer and then breaks, and an opening in the battery case component is opened. The sealing device is reliably mounted on the battery case component, and has better sealing performance. Moreover, using the electrolyte can achieve smooth opening, thereby ensuring the effectiveness of unsealing of the battery cell.[French]
La présente invention concerne un dispositif d'étanchéité, un composant de boîtier de batterie, un élément de batterie et une batterie à haute capacité. Le dispositif d'étanchéité comprend une couche soluble et une couche d'isolation fixée à la couche soluble, la couche soluble étant constituée d'un matériau soluble dans l'électrolyte ; le matériau de la couche d'isolation est insoluble dans un électrolyte ; et lorsque l'élément de batterie est non scellé, la couche soluble est dissoute dans l'électrolyte, la couche d'isolation perd le support à partir de la couche soluble puis se rompt, et une ouverture dans le composant de boîtier de batterie est ouverte. Le dispositif d'étanchéité est monté de manière fiable sur le composant de boîtier de batterie, et présente de meilleures performances d'étanchéité. De plus, l'utilisation de l'électrolyte peut permettre une ouverture en douceur, ce qui permet d'assurer l'efficacité de descellement de l'élément de batterie.[Chinese]
本申请提供一种密封装置、电池壳体构件、单体电池及大容量电池。该密封装置包括溶解层以及附着在溶解层上的隔离层；溶解层的材质为电解液可溶材质；隔离层的材质不溶于电解液，单体电池开包时，溶解层被电解液溶解，隔离层失去溶解层的支撑后破裂，电池壳体构件上的开孔被打开。该密封装置与电池壳体构件实现了可靠安装，且具有较好的密封性，同时利用电解液可以顺利打开，确保了单体电池开包的有效性。