Battery Charging Control Method for Thermal Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional battery charging methods fail to effectively manage temperature rises during high-speed charging, leading to potential damage to batteries and reduced lifespan, as they often prioritize charging speed over thermal balance.
Innovation Solution
An electronic device with a charging control method that adjusts the charging current intensity based on battery voltage, switching from a multistage current mode to a constant voltage mode when the current voltage matches a predetermined level, thereby optimizing temperature control and balancing charging speed and thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the battery is charged at a high rate to increase charging speed, then the charging time is reduced, but the temperature of the battery rapidly increases due to resistance components
Solution Approach 1:
The patent applies dynamics by making the charging current adjustable rather than fixed. The controller dynamically changes the charging current intensity based on real-time temperature feedback from the battery, transitioning between different charging modes (first charging mode with higher current, second charging mode with lower current) to maintain thermal balance while optimizing charging speed
Solution Approach 2:
The patent implements feedback control by continuously monitoring the battery temperature and using this information to adjust the charging current. The controller receives temperature information from the battery and modifies the charging mode accordingly, creating a closed-loop control system that balances charging speed and temperature management
2Loss of time
If the battery is charged at maximum allowable current to reduce charging time, then the charging efficiency is improved, but the internal temperature rises significantly reducing battery lifespan
Solution Approach 1:
The patent uses dynamic charging mode adjustment to balance charging time and battery lifespan. Instead of using maximum current throughout, the system adapts the charging current based on temperature conditions, using higher currents when temperature is low (reducing charging time) and lowering currents when temperature rises (protecting battery lifespan)
Solution Approach 2:
The patent changes the charging parameter (current intensity) based on temperature conditions. The controller switches between different charging modes with different current characteristics, optimizing the balance between charging speed and battery durability by adjusting electrical parameters in response to thermal state
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces temperature rises during high-speed charging, maintaining a thermal equilibrium that prolongs battery lifespan and ensures safer operation by balancing charging speed and thermal management.
Implementation Method 1
the temperature of the battery rapidly increases due to a resistance component in the battery
Data Source
AI summary
The present invention relates to an electronic device and a method for controlling a charging operation of a battery. The charging control method includes charging a battery using a first charging mode, if a current voltage of the charged battery coincides with a predetermined voltage, decreasing an intensity level of a charging current and charging the battery using the decreased charging current intensity, and if the decreased charging current intensity coincides with a predetermined current intensity, converting from the first charging mode to a second charging mode and charging the battery using the second charging mode.