Hexahedral Battery Cell Connector for Flexible Series-Parallel Packs
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Solution Overview
Problem
Existing battery cell structures fail to efficiently configure high-voltage, high-capacity battery packs using conventional cylindrical secondary batteries, as they lack flexible designs for series and parallel connections, and existing solutions do not address the need for modifying battery packs to achieve desired voltages.
Innovation Solution
A hexahedral battery cell connector with lower and upper mounting units and connection units on its surfaces, allowing for the electrical and physical connection of cylindrical battery cells in various configurations, enabling flexible assembly of battery cells in series and parallel to form high-voltage, high-capacity structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional cylindrical secondary batteries are used with standardized sizes, then battery cell capacity is maintained, but battery pack design flexibility is reduced and voltage configuration is limited
Solution Approach 1:
The invention divides the connection function into separate components: connection protrusions on battery cells and corresponding connection recesses on mounting plates. This segmentation allows independent optimization of each component and enables flexible assembly configurations for achieving desired voltage and capacity arrangements.
Solution Approach 2:
The mounting plate structure serves multiple functions simultaneously: it provides electrical connection between batteries, offers mechanical support and positioning, and enables both series and parallel connection configurations. This multi-functionality reduces the need for additional specialized components.
2Power
If battery cells are connected using existing connection units with concave portions, then battery cell capacity increases, but battery pack voltage configuration capability is limited
Solution Approach 1:
The invention enables dynamic reconfiguration of battery connections by allowing batteries to be arranged in different series-parallel combinations within the same physical structure. The mounting plates with standardized connection interfaces permit flexible wiring arrangements to achieve various voltage outputs based on application requirements.
3Adaptability or versatility
If prismatic battery cells are mounted in the same plane, then manufacturing simplicity is maintained, but connection flexibility for series and parallel configurations is reduced
Solution Approach 1:
The mounting plate acts as an intermediary component that simplifies complex connections. By providing pre-formed connection recesses and mounting holes, it mediates between individual battery cells and the final assembled battery pack, making both series and parallel connections achievable through standardized interfaces rather than custom wiring.
Data Source
AI summary
Disclosed is a battery cell connector formed so as to have a general hexahedral shape, the battery cell connector including a lower mounting unit, in which a lower part of a cylindrical battery cell is mounted, an upper mounting unit, in which an upper part of another cylindrical battery cell is mounted, and a connection unit formed at a front surface, a rear surface, a left surface, and a right surface of the battery cell. The connection unit being configured to electrically and physically connect the battery cell connector to another battery cell connector, wherein the lower mounting unit, the upper mounting unit, and the connection unit are electrically connected to each other in the battery cell connector.