Power Battery Heating Modes for Low-Temperature Charging
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Solution Overview
Problem
Power batteries experience a severe decline in discharge capacity and fail to charge in low-temperature environments, limiting their usage in such conditions.
Innovation Solution
A method and apparatus for heating power batteries, which acquire current state parameter values and apply corresponding heating modes, including self-heating and external heating, to increase discharge capacity and enable charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If power batteries are used in low-temperature environments, then the batteries can operate in cold conditions, but the discharge capacity severely declines and charging fails
Solution Approach 1:
The patent applies preliminary action by heating the power battery before charging or high-temperature operation. The heating module pre-heats the battery to a target temperature based on the ambient temperature and battery state, ensuring the battery reaches optimal operating conditions before the main operation begins. This prevents the battery from operating in suboptimal low-temperature conditions that would cause capacity decline or charging failure.
Solution Approach 2:
The patent introduces a heating module as an intermediary component between the power battery and the operating environment. This heating module acts as a mediator that transfers thermal energy to the battery, enabling the battery to maintain appropriate operating temperature regardless of ambient conditions. The heating module includes heating elements and thermal management components that facilitate controlled heat transfer to the battery.
2Reliability
If heating is applied to increase discharge capacity and enable charging, then battery performance improves, but energy consumption increases
Solution Approach 1:
The patent applies self-service by utilizing the power battery's own stored energy to heat itself through internal resistance heating during charging or discharge cycles. The heating module can draw power from the battery to generate heat, allowing the battery to warm itself without requiring external energy sources. This reduces the overall energy burden on the system while maintaining battery temperature.
Solution Approach 2:
The patent dynamically adjusts heating parameters based on real-time battery state monitoring. The control module continuously monitors battery temperature, voltage, current, and state of charge, then adjusts the heating power and duration accordingly. This prevents excessive heating and energy consumption by applying only the necessary heating to reach optimal operating conditions, rather than continuous or fixed heating.
3Adaptability or versatility
If multiple heating modes are implemented, then adaptability to different conditions is improved, but device complexity increases
Solution Approach 1:
The patent implements multi-functionality by designing a heating module that can operate in multiple heating modes (first heating mode, second heating mode, third heating mode) using the same physical components. The heating module includes heating elements, thermal management components, and control circuitry that can be configured for different heating strategies based on battery state and environmental conditions. This allows one component to serve multiple functions rather than requiring separate systems for each heating mode.
Solution Approach 2:
The patent applies dynamics by implementing dynamic switching between different heating modes based on real-time battery conditions. The control module continuously evaluates battery temperature, state of charge, and environmental factors to determine the appropriate heating mode and adjusts the heating strategy accordingly. This dynamic adaptation allows the system to respond to changing conditions without requiring complex manual intervention or multiple fixed systems.
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
The solution effectively increases the discharge capacity of power batteries and allows for charging in low-temperature environments, addressing the limitations of prior technologies.
Implementation Method 1
heating the power battery using a self-heating mode... controlling a charging and discharging circuit where the power battery is located to alternately form a charging loop and a discharging loop, to heat the power battery
Implementation Method 2
heating the power battery using an external heating mode... controlling a heating module to heat the power battery
Data Source
AI summary
A method for heating a power battery (1), an apparatus for heating a power battery (1), an electronic device, a system for heating a power battery (1), and a storage medium. The heating method includes: acquiring a current state parameter value of the power battery (1); and heating the power battery (1) using a corresponding heating mode based on the current state parameter value. After the temperature of the power battery (1) rises, the discharge capacity of the power battery (1) increases, and charging can be achieved.