Battery Cell IC Sensing Layout for Temperature and Pressure Hazards
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Solution Overview
Problem
Existing battery cell technologies face challenges in detecting working conditions in real time, leading to potential safety hazards such as explosions due to harsh conditions like high temperature or pressure.
Innovation Solution
Incorporating an integrated circuit member with detecting elements, such as temperature sensors, pressure sensors, and stress sensors, within the battery cell to monitor its working conditions in real time and facilitate corresponding reactions to mitigate safety hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an integrated circuit member with detecting elements is added to the battery cell, then the safety performance and real-time monitoring capability are improved, but the device complexity and internal space occupation increase
Solution Approach 1:
The patent combines multiple detecting elements (temperature sensor, pressure sensor, stress sensor) into a single integrated circuit member, which is then installed within the battery cell. This merging approach allows real-time monitoring of multiple parameters simultaneously, improving safety performance while minimizing the increase in device complexity compared to using separate detecting devices for each parameter.
2Measurement precision
If an integrated circuit member is arranged inside the accommodating chamber, then the real-time detection capability is improved, but the available volume for electrode assembly is reduced
Solution Approach 1:
The integrated circuit member is nested within the accommodating chamber of the battery cell, utilizing the existing internal space efficiently. The detecting elements are positioned to monitor the electrode assembly without occupying excessive volume, allowing real-time detection while maintaining sufficient space for the electrode assembly and electrolyte.
3Loss of information
If multiple detecting elements are integrated into a single integrated circuit member, then the monitoring comprehensiveness is improved, but the manufacturing complexity increases
Solution Approach 1:
The integrated circuit member is designed with multi-functionality, incorporating temperature sensing, pressure sensing, and stress sensing capabilities within a single device. This universal design allows the battery cell to achieve comprehensive monitoring of multiple critical parameters simultaneously, improving monitoring comprehensiveness while avoiding the need to manufacture and assemble multiple separate detecting devices.
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 implementation of integrated circuit members with detecting elements allows for real-time monitoring of battery cell conditions, reducing the risk of safety hazards and improving the overall safety performance of the battery cell.
Implementation Method 1
The detecting element includes a temperature sensor
Implementation Method 2
The detecting element includes a pressure sensor
Implementation Method 3
The detecting element includes a stress sensor
Data Source
AI summary
A battery cell, a battery and an electricity-consuming device are provided by the present application. The battery cell includes a casing and at least one integrated circuit member. The casing includes an accommodating chamber. The integrated circuit member includes a detecting element that is configured to detect a working condition of the battery cell, and the integrated circuit member is arranged inside or outside the accommodating chamber.