All-Solid-State Battery Cabin Isolation for Hydrogen Sulfide Control
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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 a control device and method to detect and respond to gas generation by separating the cabin from outside air and notifying users of potential hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the all-solid-state battery is cooled to prevent hydrogen sulfide generation, then the temperature control is improved, but the hydrogen sulfide may still enter the vehicle cabin
Solution Approach 1:
The patent introduces an intermediary substance (gas adsorbent) placed in the vehicle cabin to capture hydrogen sulfide gas before it can harm occupants. This adsorbent acts as a mediator between the battery and the cabin environment, allowing the system to tolerate some gas generation while still protecting occupants.
Solution Approach 2:
The patent segments the vehicle into distinct zones: the battery compartment and the vehicle cabin. By creating this spatial separation and controlling the interface between zones (through windows and air circulation paths), the system can manage gas containment independently in each zone.
2Object-affected harmful factors
If windows are closed to block gas entry, then the gas suppression is improved, but the air circulation is reduced
Solution Approach 1:
The patent applies local quality by placing gas adsorbent specifically in the vehicle cabin area where occupants are present, rather than throughout the entire vehicle. This localized approach allows the adsorbent to effectively capture gas in the critical zone while minimizing impact on overall air circulation.
3Object-affected harmful factors
If air circulation path is switched to inside air circulation, then the gas entry suppression is improved, but the fresh air supply is reduced
Solution Approach 1:
The gas adsorbent serves as an intermediary that allows the system to recirculate inside air while still protecting occupants from hydrogen sulfide. The adsorbent captures the harmful gas within the recirculated air stream, enabling fresh air supply to be maintained through the adsorbent's purification function.
4Object-affected harmful factors
If exhaust unit is used to remove gas from cabin, then the gas removal efficiency is improved, but the energy consumption increases
Solution Approach 1:
The patent applies partial action by using the exhaust unit selectively rather than continuously - specifically when hydrogen sulfide generation is detected or predicted. This selective activation removes gas when necessary while minimizing energy consumption during normal operation.
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 by isolating the cabin from outside air and utilizing gas adsorbents and exhaust systems to manage gas presence.
Implementation Method 1
a first inside air circulation path in which a gas adsorbent that adsorbs the gas is arranged
Data Source
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AI summary
A vehicle (100) on which an all-solid-state battery (50) is mounted includes the all-solid-state battery (50), and a case (90) that accommodates the all-solid-state battery (50). The vehicle (100) is configured such that, when gas is generated in the case (90), a blocking process is executed to separate a vehicle cabin from outside air.