Modular Cell Module with Three Connection Poles for Adjustable Voltage
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Solution Overview
Problem
Existing battery systems for hybrid vehicles lack flexibility in adjusting voltage without altering the type or number of cell modules, making them inflexible to varying demands in hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs).
Innovation Solution
A modular cell module design with a metallic housing containing n identical cells, each with positive and negative electrodes, and a common electrolyte system, featuring at least three external electrical connection poles for flexible series or parallel interconnection, allowing for adjustable voltage configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional battery systems use fixed series connections of cells, then the voltage is determined by the number of cells, but the system lacks flexibility to adjust voltage for different hybrid vehicle requirements
Solution Approach 1:
The battery system is segmented into modular cell groups, where each group contains a specific number of cells (e.g., 2, 3, 4, 6, 8, 12 cells) that can be independently connected. This segmentation allows different cell groups to be combined in various series and parallel configurations to achieve different voltage and capacity requirements without redesigning the entire battery system.
Solution Approach 2:
The battery system incorporates switchable connection configurations that allow dynamic reconfiguration of cell groups between series and parallel connections. This enables the voltage and capacity of the battery system to be adjusted dynamically based on the specific requirements of different hybrid vehicle applications (HEV vs PHEV) without changing the physical cell modules.
2Adaptability or versatility
If the battery system is designed for high voltage applications, then PHEV requirements are met, but the system cannot be easily adapted for lower voltage HEV applications
Solution Approach 1:
The battery system is designed with universal cell groups that can serve multiple functions across different applications. The same cell groups can be configured in series for high-voltage PHEV applications or in parallel for lower-voltage HEV applications, making the battery system universally applicable to both hybrid vehicle types without requiring different cell modules or redesigns.
3Power
If multiple cell modules are used to achieve required voltage, then voltage requirements are met, but the number of modules increases system complexity
Solution Approach 1:
Multiple cells are merged into integrated cell groups that function as unified voltage sources. By combining cells in series within each group and then connecting groups in series or parallel, the system achieves high voltage output with fewer discrete module connections, reducing overall system complexity while meeting voltage requirements.
Data Source
AI summary
A cell module stores electrical energy, a battery has such a cell module and a module housing for such a cell module. The module housing includes an internal space in which n cells each having at least one positive and at least one negative electrode are arranged. In this case, n≥2 and the module housing here has at least three external electrical connection poles. The battery includes at least two such cell modules. The module housing includes at least three apertures through which electrical conductors are guided from the inside of the module housing to the outside.