Adjustable Partition Battery Voltage Balancing Device
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Solution Overview
Problem
Voltage differences between battery cells in a module lead to suboptimal performance, as existing technologies fail to effectively minimize these differences during manufacturing and usage.
Innovation Solution
A battery cell voltage balancing device with an insulative main body, terminal connections, and an interval adjustment unit, allowing for secure mounting and electrical connection of battery cells in parallel, thereby minimizing voltage differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If battery cells are connected in series to provide high power, then power output is improved, but voltage differences between cells increase leading to suboptimal performance
Solution Approach 1:
The battery module is segmented into multiple groups based on voltage levels, with each group containing cells of similar voltage characteristics. This segmentation allows for better voltage matching within each group while maintaining high overall power output through series connection of groups.
Solution Approach 2:
The invention changes the connection configuration parameter from simple series to a more complex series-parallel hybrid arrangement. By adjusting the connection parameters (which cells are connected together and how), the system optimizes both power output and voltage balance, resolving the contradiction between high power and performance consistency.
2Quantity of substance
If battery cells with different voltages are used to increase capacity, then battery capacity is improved, but voltage differences deteriorate performance
Solution Approach 1:
Different parts of the battery module (different groups) have different connection configurations tailored to their specific voltage characteristics. Cells with similar voltage are grouped together, creating local uniformity that maintains overall system reliability while allowing diverse cell types for increased capacity.
3Ease of manufacture
If fixed partition structure is used for mounting battery cells, then manufacturing simplicity is improved, but adaptability to different cell configurations is reduced
Solution Approach 1:
The partition structure incorporates adjustable elements that allow the configuration to be dynamically changed during assembly. This enables the same basic structure to adapt to different cell voltages, capacities, and arrangements, maintaining manufacturing simplicity while providing configuration flexibility.
Solution Approach 2:
The partition structure is designed with universal features that can accommodate multiple cell configurations. By incorporating adjustable and reconfigurable elements, a single partition design serves multiple functions: supporting different cell types, enabling various connection patterns, and maintaining structural integrity across different arrangements.
Data Source
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AI summary
Disclosed herein is a battery cell voltage balancing device for connecting two or more battery cells to one another in parallel so as to minimize a voltage difference between the respective battery cells, the battery cell voltage balancing device including an insulative main body having partitions, between which the two or more battery cells are mounted, respectively, configured in a structure in which the partitions are open upward, terminal connection parts disposed at opposite ends of the insulative main body for connecting cathodes and anodes of the battery cells mounted at the insulative main body to cathodes and anodes of neighboring battery cells mounted at the insulative main body, and an interval adjustment unit for variably adjusting an interval between the partitions in a state in which the battery cells are mounted between the partitions to achieve secure mounting of the battery cells between the respective partitions and electrical connection of electrode terminals of the respective battery cells to the terminal connection parts.