Smart Lead-Acid Battery Module for Cell-Level Health Prediction
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Solution Overview
Problem
Traditional lead-acid batteries lack intelligence and communication capabilities, making it difficult to detect individual cell health and deterioration, leading to potential battery failures and reduced recycling efficiency.
Innovation Solution
An intelligent lead-acid battery system with 'smart' sensor technology that monitors cell voltage, current, temperature, and other parameters to predict the battery's state of health, charge, and life expectancy, enabling proactive replacement and improved charging management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional lead-acid batteries are used without intelligence or communication capabilities, then the device complexity is low, but the measurement precision of individual cell health and deterioration is insufficient
Solution Approach 1:
The patent divides the battery system into individually monitorable cells, with each cell equipped with its own sensor and communication capability. This segmentation allows precise measurement of individual cell health parameters (voltage, temperature, current) while maintaining a modular architecture that manages complexity through standardized interfaces and distributed monitoring.
2Reliability
If individual cell monitoring is implemented, then the reliability of battery operation is improved, but the device complexity increases due to additional sensors and communication components
Solution Approach 1:
The patent implements continuous feedback loops where sensors monitor cell parameters (voltage, temperature, current) and communicate this data to a control system. The control system processes this feedback information and adjusts charging/discharging operations in real-time to prevent individual cell failure, thereby improving overall battery reliability through proactive management.
Solution Approach 2:
Each battery cell is equipped with integrated sensors and communication capabilities that enable the cells to self-monitor and self-report their health status. This self-service approach allows the battery system to autonomously detect and respond to individual cell deterioration without requiring external intervention, improving reliability while using standardized modular components.
3Loss of information
If cell-level monitoring is added to traditional batteries, then the loss of information about battery health is reduced, but the ease of operation decreases due to more complex monitoring and maintenance requirements
Solution Approach 1:
The patent implements a universal communication protocol and standardized sensor interfaces that allow the same monitoring infrastructure to serve multiple functions: real-time health monitoring, predictive maintenance scheduling, recycling optimization, and operational optimization. This multi-functionality reduces the operational burden by providing comprehensive battery management through a single integrated system.
Data Source
AI summary
Intelligent lead-acid battery system capable of monitoring a parameter (e.g., voltage, temperature) of one or more battery cells of a lead-acid battery. In one implementation, the battery system includes a housing having a cells compartment, a battery monitoring system (BMS) compartment, and a wall disposed between the cells compartment and the BMS compartment. A first post and a second post are associated with a battery cell. The first post and the second post protrude through the wall between the cells compartment to the BMS compartment. A voltage sensor electrically couples to the first post and the second post to monitor the voltage of the battery cell. A temperature sensor can couple to the first or second or both posts. The intelligent AGM battery system can predict the battery module's state of health, state of charge, module status, power capability, life expectancy, etc.