Vehicle Cabin Isolation for All-Solid-State Battery Gas Blocking
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Solution Overview
Problem
When an all-solid-state battery is mounted in a vehicle, generated hydrogen sulfide can enter the vehicle cabin despite cooling measures, posing a risk to occupants.
Innovation Solution
A vehicle configuration that includes a case for the all-solid-state battery, with mechanisms to block gas entry into the cabin, such as closing windows, switching air circulation paths to include gas adsorbents, and using an exhaust unit to remove gases, along with electrical disconnection and user notification systems to manage potential abnormalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling measures are implemented for the all-solid-state battery, then temperature control is improved, but gas may still enter the vehicle cabin
Solution Approach 1:
The vehicle air circulation system is segmented into multiple independent paths: outside air path, first inside air path (without adsorbent), and second inside air path (with adsorbent). This segmentation allows selective routing of air flows to address both cooling and gas suppression requirements simultaneously.
Solution Approach 2:
A gas adsorbent is introduced as an intermediary substance in the second inside air circulation path. The adsorbent captures and retains gas molecules (such as hydrogen sulfide) that may be generated by the battery, preventing them from entering the vehicle cabin while allowing the air circulation system to continue functioning.
2Object-affected harmful factors
If windows are closed to block gas entry, then gas suppression is improved, but air circulation may be restricted
Solution Approach 1:
The air circulation system is designed to be dynamically adjustable, allowing the air conditioner to switch between different circulation paths (outside air path, first inside air path, second inside air path) based on real-time conditions. This dynamic adaptability ensures optimal air circulation while maintaining gas suppression effectiveness.
3Object-affected harmful factors
If gas adsorbent is added to the air circulation path, then gas adsorption is improved, but system complexity increases
Solution Approach 1:
The air conditioner system is designed with multi-functionality, capable of operating in multiple modes: outside air circulation mode, first inside air circulation mode (without adsorbent), and second inside air circulation mode (with adsorbent). This universal design allows the same system to handle different air circulation requirements without requiring separate dedicated systems for each function.
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
Effectively suppresses the entry of gases generated by the all-solid-state battery into the vehicle cabin, ensuring occupant safety and preventing potential electrical issues.
Implementation Method 1
a first inside air circulation path in which a gas adsorbent that adsorbs the gas is arranged
Data Source
AI summary
A vehicle on which an all-solid-state battery is mounted includes the all-solid-state battery, and a case that accommodates the all-solid-state battery. The vehicle is configured such that, when gas is generated in the case, a blocking process is executed to separate a vehicle cabin from outside air.