Battery Cell Venting Structure for Controlled Thermal Discharge
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Solution Overview
Problem
Existing battery technologies face safety challenges due to the uncontrolled discharge of high-pressure and high-temperature emissions, which can lead to further safety hazards and thermal runaway.
Innovation Solution
A battery design incorporating a pressure relief mechanism with a support structure that allows the mechanism to open at a predetermined angle, directing emissions towards a thermal management component for controlled discharge and cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressure relief mechanism is provided to release internal pressure, then safety is improved, but uncontrolled discharge of high-pressure and high-temperature emissions causes further safety hazards
Solution Approach 1:
The patent introduces a cooling component as an intermediary between the pressure relief mechanism and the external environment. High-temperature emissions discharged from the pressure relief mechanism are directed to contact with the cooling component, which absorbs heat and cools the emissions before they are released to the outside, thereby preventing uncontrolled discharge of hot gases while maintaining the pressure relief function
Solution Approach 2:
The patent converts the harmful high-temperature emissions into a beneficial cooling process. The hot gases discharged from the pressure relief mechanism are directed to contact with the cooling component, where their thermal energy is utilized to cool down before release, transforming the harmful thermal effect into a controlled thermal management process
2Object-affected harmful factors
If a support structure is added to control the opening angle, then emission direction is improved, but device complexity increases
Solution Approach 1:
The patent merges the support structure with the cooling component into an integrated assembly. The support structure serves dual functions: controlling the opening angle of the pressure relief mechanism and positioning the cooling component to receive emissions. This integration reduces the number of separate parts and simplifies the overall structure while achieving precise emission direction control
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 reduces the risk of thermal runaway and improves safety by ensuring controlled emission discharge and rapid cooling, enhancing the overall safety and energy density of the battery.
Implementation Method 1
a thermal management component configured to accommodate a fluid to adjust the temperature of the battery cell
Data Source
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AI summary
Embodiments of the present application provides a battery, a power consumption apparatus, a method and an apparatus for producing the battery. The battery includes: a battery cell, the battery cell including a pressure relief mechanism, the pressure relief mechanism being disposed on a first wall of the battery cell, and the pressure relief mechanism being configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; a thermal management component being configured to accommodate a fluid to adjust the temperature of the battery cell, and a first surface of the thermal management component being attached to the first wall; and a support, the support being arranged opposite to the pressure relief mechanism, the support being configured to support the pressure relief mechanism when the pressure relief mechanism is actuated, so that the pressure relief mechanism is opened at a predetermined angle, therefore emissions from the battery cell can be discharged toward the thermal management component. The technical solutions of embodiments of the present application can enhance safety of batteries.