Busbar and battery pack
The busbar design with adjustable connection portions and elastic members enhances the workability and productivity of connecting cylindrical battery cells by maintaining consistent flatness for stable welding.
JP2026084077APending Publication Date: 2026-05-20SAMSUNG SDI CO LTD
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Patent Information
- Application Number
- JP2025167295
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-11-08
- Filing Date
- 2025-10-03
- Publication Date
- 2026-05-20
AI Technical Summary
Technical Problem
The challenge in connecting multiple cylindrical battery cells in series and parallel is maintaining welding flatness during the process, which affects workability and productivity.
Method used
The busbar design includes adjustable connection and extension portions that can form 'U' or 'V' shapes, allowing for deformation and height adjustment to ensure consistent flatness, and an elastic member for height compensation.
Benefits of technology
This design improves workability by ensuring stable contact for automated processes, enabling seamless laser welding without additional flatness maintenance steps.
✦ Generated by Eureka AI based on patent content.
Abstract
In the process of connecting multiple cylindrical battery cells in series and parallel, weld flatness is ensured to improve the workability and productivity of the process. [Solution] The battery includes a housing, a plurality of first battery cells housed in the housing and having a first positive terminal and a first negative terminal, a plurality of second battery cells housed in the housing and having a second positive terminal and a second negative terminal, a first busbar connecting the first negative terminals of the plurality of first battery cells, a second busbar connecting the second positive terminals of the plurality of second battery cells, and a third busbar connecting the first positive terminal of the first battery cell and the second negative terminal of the second battery cell, wherein at least one of the first busbar, the second busbar and the third busbar is deformable in shape depending on the positions of the first battery cells and the second battery cells.
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