Battery Cell Pressure Simulation Jig for Module Surface Mapping
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Solution Overview
Problem
There is a need for a device capable of simulating the behavior of surface pressure on battery cells within a battery module, as the pressure varies by location and affects performance.
Innovation Solution
A jig comprising a lower plate, an upper plate, pressure sensors, and fastening members, including bolts and nuts, to simulate the surface pressure of battery cells, with varying numbers of fastening members to replicate the pressure distribution in a battery module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple battery cells are connected in series/parallel to form a battery pack, then the output voltage and charge/discharge capacity are improved, but the surface pressure distribution becomes non-uniform and difficult to control
Solution Approach 1:
The battery pack is divided into multiple battery modules, each containing a subset of battery cells. This segmentation allows independent pressure control and simulation for each module, enabling uniform pressure distribution across the entire pack while maintaining high power output through series/parallel connections.
Solution Approach 2:
The invention introduces adjustable pressure application mechanisms that can dynamically modify the pressure parameters on individual battery cells or modules. By changing pressure parameters independently for different locations, the system achieves uniform pressure distribution while maintaining the required electrical configuration for high power output.
2Measurement precision
If a device is designed to simulate surface pressure of battery cells, then the measurement precision and reliability are improved, but the device complexity increases
Solution Approach 1:
The invention creates a simplified replica or model of the battery module structure that replicates the essential pressure distribution characteristics. This copy allows for precise pressure measurement and simulation without requiring the full complexity of the actual battery pack, reducing device complexity while maintaining measurement accuracy.
Solution Approach 2:
The simulation device is designed with multi-functional components that can serve multiple purposes: applying pressure, measuring pressure, and simulating different operational conditions. This universality reduces the overall number of separate components needed, thereby reducing device complexity while maintaining high measurement precision.
Data Source
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AI summary
A jig for simulating a surface pressures of a battery cell including a lower plate, an upper plate spaced apart from an upper side of the lower plate, and a pressure sensor for measuring pressure on a battery cell disposed between the lower plate and the upper plate. The jig simulates the surface pressure on a battery cell within a battery module.