Battery cell, battery device, energy storage system and electric equipment
CN122338291APending Publication Date: 2026-07-03JINKO SOLAR CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JINKO SOLAR CO LTD
- Filing Date
- 2026-03-23
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
The capacity of existing battery cells needs to be improved.
Method used
By setting a first raised portion on the battery cover to form a first receiving groove to accommodate part of the tab structure, and using electrical connectors to connect the tab to the terminal post, the space occupied by the tab in the casing is reduced, thereby increasing the storage space of the main body of the battery cell and improving the battery capacity and energy density.
Benefits of technology
This has improved the battery capacity and energy density of individual cells, increased the space for active materials in the cell body, and extended the cycle life.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122338291A_ABST
Abstract
This application relates to a battery cell, battery device, energy storage system, and electrical equipment, and pertains to the field of energy storage technology. The battery cell includes a casing, a battery cover, a cell assembly, terminals, and electrical connectors. The cell assembly includes a cell body and tabs connected together. The cell body is located within the casing. The battery cover includes a cover body and a first raised portion. The cover body is connected to the casing. The first raised portion extends from the cover body in a direction away from the cell body. A first receiving groove is provided on the side of the first raised portion near the cell body. At least a portion of the structure of the tabs is located within the first receiving groove. The terminals are connected to the battery cover, and the tabs are connected to the terminals via electrical connectors. The extent to which the receiving space of the casing is occupied by the tabs is relatively small, or the tabs are not entirely within the receiving space of the casing. The casing can accommodate a relatively large amount of active material and electrolyte from the cell body. Therefore, the battery cell can have advantages such as large battery capacity, high energy density, and long cycle life.
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