Battery Pack Monitoring for Cell Defect Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Detecting and mitigating battery defects in battery packs is challenging due to the difficulty in identifying defects such as aging, improper use, and manufacturing issues, which can lead to dangerous conditions and reduced battery life.
Innovation Solution
Monitoring battery parameters and determining individual status information for each battery element in a pack, allowing for the modification of use patterns based on aggregate status information to prevent defects and extend battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery parameters are monitored continuously to detect defects early, then battery safety and reliability are improved, but device complexity and energy consumption increase
Solution Approach 1:
The monitoring system is segmented into modular functional blocks: parameter acquisition module, data processing module, defect detection module, and control module. Each module performs a specific function, making the overall system easier to design, implement, and maintain while achieving comprehensive battery monitoring
Solution Approach 2:
The system uses the battery's own operational data (voltage, current, temperature) to self-diagnose defects without requiring external inspection equipment. The control circuitry automatically analyzes the battery's performance parameters and identifies defects such as aging, improper use, or manufacturing issues
2Measurement precision
If individual battery element status is tracked to identify defects, then measurement precision is improved, but device complexity increases
Solution Approach 1:
Each battery element is monitored individually with dedicated parameter acquisition circuits, allowing precise tracking of voltage, current, and temperature for each cell. This segmented approach enables accurate defect identification while maintaining manageable system complexity through modular architecture
Solution Approach 2:
The system continuously feeds back individual battery element status information to the control circuitry, which compares measured parameters against expected ranges and trends. This feedback mechanism enables precise defect detection by identifying deviations in individual elements that may indicate aging, manufacturing defects, or improper usage
3Duration of action of stationary object
If use patterns are modified based on defect detection to prevent failures, then battery life is extended, but productivity decreases
Solution Approach 1:
The charging and discharge parameters are dynamically adjusted based on real-time battery status and detected defects. The control circuitry modifies use patterns adaptively - for example, reducing charging current for aged batteries or cells with detected issues - thereby extending battery life while minimizing impact on productivity through intelligent, condition-based optimization
Data Source
AI summary
Methods, systems, and media for mitigating defects in battery packs are provided. In some embodiments, a method comprises: (a) monitoring one or more battery parameters associated with one or more battery elements of a battery pack comprising a plurality of battery elements; (b) determining individual status information, each corresponding to one of the one or more battery elements of the battery pack based on the one or more battery parameters; and (c) modifying a use pattern of the battery pack based at least in part by considering an aggregate of the individual status information.