Vacuum Battery Frame Assembly for Uniform Cell Compression
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Solution Overview
Problem
Traditional flow batteries face issues with ununiform voltaic pile locking force, difficulty in disassembly and assembly, leading to uneven electrode reaction and conduction, non-optimal power storage capacity, and reduced battery life due to the use of bolts and nuts for fixing.
Innovation Solution
Integrating a vacuum chuck clamp into the battery pile structure, utilizing vacuum suction to uniformly and stably fix battery frame plates, enabling easy disassembly and assembly of individual cells without dismantling the entire module, and ensuring uniform electrode reaction and conduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If bolts and nuts are used to fix the battery frame plates, then the battery structure can be assembled, but the locking force becomes ununiform and disassembly becomes difficult
Solution Approach 1:
The patent replaces the traditional mechanical bolt-and-nut fastening system with a vacuum suction system. The vacuum chuck generates uniform suction force through vacuum holes to hold the battery frame plates together, eliminating the need for bolts and nuts. This substitution resolves the contradiction by providing both uniform locking force and easy disassembly through simple vacuum release.
Solution Approach 2:
The patent employs pneumatic principles by using vacuum suction through vacuum holes in the battery frame plates. The vacuum chuck creates a pressure difference (negative pressure) to hold the plates together uniformly, replacing mechanical fasteners. This pneumatic approach enables both strong bonding and easy release by controlling the vacuum pressure.
2Ease of manufacture
If multiple voltaic piles are locked simultaneously with bolts and nuts, then the battery can be assembled, but the reaction force causes different distances between each voltaic pile
Solution Approach 1:
The patent replaces the mechanical bolt-and-nut system with a vacuum suction system that distributes holding force uniformly across the entire battery frame plate surface. The vacuum holes create consistent negative pressure, ensuring equal spacing between multiple voltaic piles without the reaction forces and distance variations caused by discrete mechanical fasteners.
3Strength
If bolts and nuts are used for fixing, then the battery can be assembled, but the overall volume and weight increase
Solution Approach 1:
The patent replaces heavy mechanical fasteners (bolts and nuts) with a lightweight vacuum suction system. The vacuum chuck and vacuum holes use atmospheric pressure differential instead of heavy metal components, significantly reducing the overall weight of the battery while maintaining adequate holding strength through uniform vacuum pressure.
4Strength
If bolts and nuts are used to lock the battery frame plates, then the structure can be fixed, but liquid leakage and device damaging problems occur due to uneven force
Solution Approach 1:
The patent replaces the mechanical bolt-and-nut system with a vacuum suction system that distributes holding force uniformly across the entire battery frame plate surface. This uniform negative pressure prevents localized stress concentrations that cause sealing failure, thereby eliminating liquid leakage and device damaging problems while maintaining reliable fixing.
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 vacuum suction principle maintains uniform electrode distance and carbon felt compressibility, enhancing battery stability and extending operational time under pressure without leakage, improving battery efficiency and lifespan.
Implementation Method 1
the vacuum channel is positioned inside the first frame plate and the second frame plate, and is configured to generate a longitudinal pressing suction force through the vacuum aperture to seal the first frame plate and the second frame plate
Data Source
AI summary
A vacuum battery structural assembly and a vacuum multi-cell battery module composed thereof are provided and include a first repeating unit including a first frame plate and a second frame plate with respect to the first frame plate; and an electrolyte channel defined within the first frame plate and the second frame plate to accommodate a liquid electrolyte, wherein both a surface of the first frame plate and a surface of the second frame plate include a vacuum suction area, the vacuum suction area includes a vacuum aperture and a vacuum channel, wherein the vacuum aperture is formed on at least one surface of the first frame plate and the second frame plate, the vacuum channel is positioned inside the first frame plate and the second frame plate, and is configured to generate a longitudinal pressing suction force and seal the first frame plate and the second frame plate.