Battery Charging Control Using Real-Time Metrics to Limit Swelling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Batteries are prone to swelling, thermal events, and damage due to improper charging voltages and temperatures, leading to potential safety issues and reduced lifespan, with existing charging methods failing to adapt to individual battery conditions.
Innovation Solution
Dynamic adjustment of battery charging parameters such as voltage, temperature, and rate based on real-time battery metrics and usage data to prevent gas buildup and extend battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If batteries are charged at high charging voltages to improve charging speed, then charging efficiency is improved, but battery swelling and thermal events increase
Solution Approach 1:
The patent applies dynamics by transitioning from static charging voltage to dynamic charging voltage adjustment. The system continuously monitors battery metrics (temperature, charge cycles, swelling indicators) and adjusts the charging voltage in real-time based on the battery's current state. This allows the charging process to adapt to changing battery conditions, maintaining optimal charging speed while preventing swelling by reducing voltage when thresholds are approached.
Solution Approach 2:
The patent changes the charging voltage parameter dynamically based on battery metrics. Instead of using a fixed high voltage for fast charging, the system modifies the voltage parameter according to real-time battery state, including temperature, charge cycle count, and swelling indicators. This parameter adjustment resolves the contradiction by allowing high voltage when safe and reducing voltage when swelling risk increases.
2Use of energy by moving object
If batteries are charged at high charging voltages to extend charging time, then charging capacity is improved, but battery lifespan decreases
Solution Approach 1:
The patent implements feedback by continuously monitoring battery metrics during charging and using this information to adjust charging parameters. The system tracks temperature, charge cycles, and swelling indicators, then feeds this information back to the charging control mechanism. This closed-loop feedback allows the system to optimize charging capacity while preventing lifespan reduction by adjusting voltage based on real-time battery health assessment.
Solution Approach 2:
The system dynamically adjusts charging voltage based on battery lifecycle stage. Early in the battery's life, higher voltages can be used to maximize charging capacity. As the battery ages or shows signs of stress, the system automatically reduces voltage to extend lifespan. This dynamic approach resolves the contradiction between charging capacity and lifespan by adapting the charging strategy to the battery's current life stage.
3Ease of operation
If fixed charging configurations are used to simplify charging process, then ease of operation is improved, but adaptability to battery conditions deteriorates
Solution Approach 1:
The patent applies self-service by enabling the battery charging system to automatically monitor its own state and adjust charging parameters without user intervention. The system self-monitors temperature, charge cycles, and swelling indicators, then self-adjusts the charging voltage accordingly. This maintains ease of operation (the user simply connects the charger) while achieving high adaptability through automated battery-condition-based parameter adjustment.
Data Source
AI summary
Systems, methods, and computer-readable media are disclosed for dynamic adjustments to battery charging using battery metrics. The device may determine a first value indicative of a battery voltage output during a first time interval, determine a second value indicative of a temperature of the battery during the first time interval, and determine a first adjusted number of charge cycles. The device may determine a total adjusted number of charge cycles of the battery from initial use to an end of the first time interval using the first adjusted number of charge cycles, and a historical adjusted number of charge cycles, determine that the total adjusted number of charge cycles is greater than a threshold, and cause a first battery charging configuration change to be implemented.