Battery cell module and battery pack

By using irregularly shaped busbar components to connect odd-numbered rows of cells in parallel in the cell module, the problem of insufficient energy storage in the cell module is solved, achieving the effect of extending power supply time and improving production efficiency under low rated voltage.

CN224400607UActive Publication Date: 2026-06-23SANY LITHIUM ENERGY CO LTD
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Patent Information

Application Number
CN202521260901.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-18
Publication Date
2026-06-23
Estimated Expiration
2035-06-18

AI Technical Summary

Technical Problem

In the existing technology, when the battery cell module is arranged in two rows and odd columns, the battery cells at the same end of the two rows cannot be connected in parallel through ordinary busbars. This results in the battery cell module storing less electricity, which cannot meet the power supply requirements of low rated voltage electrical equipment, and the production efficiency is low.

Method used

By using irregularly shaped busbars, the battery cell modules are designed with at least two rows and an odd number of columns. The cells in a single column are connected in parallel through the irregularly shaped busbars. After the cells in each row are connected in parallel, they are connected in series. The irregularly shaped busbars are used to combine the polarity of the cells, avoid short circuits, increase the capacity, and improve production efficiency.

Benefits of technology

Without changing the output voltage of the battery cell module, the capacity of the battery cell module is increased, the power supply time of the battery pack is extended, and the production efficiency of the battery cell module is improved. This method is suitable for low-rated voltage electrical equipment.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of energy storage, and provides a battery cell module and a battery pack, and the battery cell module comprises a plurality of battery cells and a special-shaped confluence assembly. The plurality of battery cells are arranged in at least two rows and an odd number of columns; the two electrodes on each battery cell are arranged at an interval along the column arrangement direction; the plurality of battery cells in the odd-numbered columns comprise battery cells in an independent column and battery cells in other columns; in the row arrangement direction, the battery cells in a single column are positioned at the end parts of the battery cells in the other columns; in the other columns of battery cells, two adjacent battery cells in each row are connected in parallel to form a battery cell group, so that each row comprises a plurality of battery cell groups which are arranged in a laminated manner; and the plurality of battery cell groups in each row are sequentially connected in series. And at least two battery cells positioned in a single column are connected in parallel through the special-shaped bus assembly. Therefore, the capacity of the battery cell module can be increased under the condition that the output voltage is not changed. And when the number of the battery cell columns of the battery cell module is an odd number, at least two battery cells in a single column can be connected in parallel, so that the battery cells of the battery cell module are not limited by the number of the battery cell columns during arrangement.
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