Aircraft Battery Cell Circular Layout for Explosion Containment
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Solution Overview
Problem
Existing battery cell packaging designs for electric or hybrid-electric aircraft propulsion systems do not adequately consider aerospace-specific requirements, such as explosion containment and compliance with standards like UN38.8 and DO-160G, and are largely based on automotive applications which are not optimized for aircraft use.
Innovation Solution
A circular configuration of battery cells within a cylindrical pressure vessel, with a centralized cooling channel and radially distributed battery cells, which allows for better explosion containment and adherence to aerospace standards, and can be arranged in a two-dimensional configuration to fit within aircraft wings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automotive-based flat battery packaging is used, then manufacturing simplicity is maintained, but aerospace safety requirements (explosion containment, UN38.8, DO-160G compliance) are not met
Solution Approach 1:
The patent applies spheroidality by transitioning from flat automotive battery packaging to a cylindrical pressure vessel configuration. The circular cross-section with radially distributed battery cells around a central cooling channel creates a curved, symmetrical structure that provides uniform explosion containment in all directions, meeting aerospace safety requirements while maintaining manufacturing feasibility through standardized cylindrical components
2Reliability
If radial battery cell distribution around centralized cooling channel is implemented, then explosion containment and cooling efficiency are improved, but manufacturing complexity increases
Solution Approach 1:
The patent merges multiple functions into the cylindrical pressure vessel structure: it serves as both the containment vessel for explosion protection and the structural framework for mounting battery cells. The centralized cooling channel is integrated into the center of this same structure, with battery cells radially mounted around it, combining structural support, thermal management, and safety containment into a single integrated assembly approach
3Weight of moving object
If two-dimensional configuration of battery modules is used, then weight efficiency and aircraft integration are improved, but manufacturing and assembly complexity increases
Solution Approach 1:
The patent transitions from traditional three-dimensional stacked battery module arrangements to a two-dimensional planar configuration where cylindrical battery modules are arranged side-by-side in a flat layout. This dimensional change optimizes weight efficiency and facilitates integration into aircraft wings or fuselage panels, while the modular cylindrical design keeps individual module manufacturing relatively simple
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
This configuration improves weight efficiency and allows for better integration of battery modules within aircraft, enhancing compliance with aerospace standards and improving the overall performance and safety of electric propulsion systems.
Implementation Method 1
a centralized cooling channel and battery pack that includes a plurality of battery cells radially distributed above the centralized cooling channel
Implementation Method 2
The plurality of battery calls may be located within a cylindrical pressure vessel, which may be configured to provide explosion containment
Data Source
AI summary
An example system includes one or more battery modules, a battery module of the one or more battery modules comprising: a cylindrical pressure vessel; a cooling channel extending axially through the cylindrical pressure vessel; and one or more battery packs within the cylindrical pressure vessel, a battery pack of the one or more battery packs comprising a plurality of battery cells radially distributed about the cooling channel.