Battery Pack Exhaust Gas Neutralization System
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Solution Overview
Problem
Secondary battery packs, particularly those used in high-power applications like electric vehicles, face challenges in managing internal pressure excesses, which can lead to harmful gas discharge, exposing individuals to toxic substances without adequate protection.
Innovation Solution
A battery pack design incorporating a safety vent system connected to an exhaust tube with a treatment agent container and a supply controller that detects pressure and flow velocity to automatically supply a treatment agent, such as water or an alkaline substance, to neutralize or dilute harmful gases, ensuring they are not released into the environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a treatment agent supply system is added to neutralize harmful gases, then safety and environmental protection are improved, but device complexity increases
Solution Approach 1:
The supply controller automatically detects exhaust gas discharge through pressure or flow velocity sensing and triggers treatment agent supply without external intervention. The system self-activates when needed, eliminating the need for manual operation while maintaining safety.
Solution Approach 2:
The supply controller acts as an intermediary between the exhaust tube and treatment agent container, detecting exhaust gas conditions and automatically triggering the release of treatment agent to neutralize harmful substances before they are discharged.
2Measurement precision
If pressure and flow velocity detection are implemented for automatic treatment agent supply, then response accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
The supply controller utilizes pneumatic principles by detecting pressure differences or flow velocity changes in the exhaust gas stream to trigger treatment agent supply. This approach uses the existing gas flow dynamics rather than requiring separate complex sensing systems.
Solution Approach 2:
The detection system leverages the natural pressure and flow characteristics of the exhaust gas itself to trigger the response, making the system self-diagnosing and self-activating without requiring external monitoring equipment.
3Object-generated harmful factors
If the exhaust tube extends outside the vehicle, then harmful gas dispersion is improved, but exposure risk to bystanders increases
Solution Approach 1:
The system converts the potentially harmful exhaust gas discharge into a beneficial process by introducing treatment agent that neutralizes harmful substances. The exhaust mechanism, which initially poses a risk, becomes a controlled release system that protects both occupants and bystanders.
Solution Approach 2:
The treatment agent acts as an intermediary substance introduced into the exhaust stream to chemically neutralize harmful gases before discharge, transforming the exhaust from a harmful output into a safe release.
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 system effectively reduces the risk of exposure to harmful substances by automatically neutralizing or diluting gases, providing a safer operating environment for both vehicle occupants and bystanders, while minimizing the number of components and manufacturing complexity.
Implementation Method 1
supplies a treatment agent so as to remove (or reduce) or detoxify harmful substances included in the exhaust gas
Implementation Method 2
The treatment agent container may contain water or an alkalic substance mixed with water
Implementation Method 3
The supply controller may be configured to open by detecting a pressure and/or velocity of flow of an exhaust gas in the exhaust tube
Implementation Method 4
The supply controller may be configured to open by detecting a pressure and/or velocity of flow of an exhaust gas in the exhaust tube
Implementation Method 5
an elastic member configured to elastically bias the closing block toward the opening
Data Source
AI summary
A battery pack includes a battery cell, a case having a housing space accommodating the battery cell, an exhaust tube connecting the housing space to outside of the case; a treatment agent container connected to the exhaust tube, and a supply controller between the exhaust tube and the treatment agent container.