Inductive Battery Cell Heating for Differential Surface Temperature Control
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Solution Overview
Problem
Existing battery cell heating technologies lack the ability to finely adjust and differentially heat areas of a battery cell, which is crucial for testing secondary battery stability and safety, especially when exposed to fire.
Innovation Solution
A battery cell heating device that incorporates a heating member made of metal and a magnetic field generator to provide a time-varying magnetic flux, allowing for precise temperature control and differential heating of battery cell surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional heating methods are used for battery cell testing, then heating capability is provided, but temperature adjustment precision is insufficient and differential heating of different areas is not achieved
Solution Approach 1:
The heating system is divided into multiple independent heating zones, each with its own heating element and temperature control. This allows different areas of the battery cell to be heated independently to different temperatures, achieving differential heating while maintaining precision control for each zone
Solution Approach 2:
Each heating zone is equipped with localized temperature sensors and control mechanisms, enabling independent temperature adjustment for different areas of the battery cell. This local control capability allows precise temperature management in specific regions without affecting other areas
2Productivity
If uniform heating is applied to the entire battery cell, then heating efficiency is improved, but the ability to differentially heat specific areas is lost
Solution Approach 1:
The heating system dynamically adjusts the temperature and power distribution to each heating zone based on real-time temperature feedback from sensors. This dynamic control allows the system to efficiently heat the entire cell when needed while also enabling selective differential heating of specific areas when required
Solution Approach 2:
The control system periodically monitors temperature across all heating zones and adjusts power distribution accordingly. This periodic control enables the system to switch between uniform heating mode (for overall efficiency) and differential heating mode (for specific area treatment) based on testing requirements
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
Enables fine adjustment of battery cell temperature and differential heating of various surfaces, enhancing the testing of secondary battery stability and safety, particularly in scenarios involving fire exposure.
Implementation Method 1
a magnetic field generator configured to provide a time-varying magnetic flux to the heating member
Implementation Method 2
a heating member that is in contact with the battery cell and is formed of a material including a metal
Implementation Method 3
a heating member that is in contact with the battery cell and is formed of a material including a metal
Data Source
AI summary
A battery cell heating device is disclosed. A battery cell heating device based on an embodiment of the disclosed technology is a battery cell heating device applying heat to a battery cell. The battery cell heating device may comprise a heating member that is in contact with the battery cell and is formed of a material including a metal, and a magnetic field generator configured to provide a time-varying magnetic flux to the heating member.