Battery Relief Vent Collector for Electrolyte Condensation and Containment
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Solution Overview
Problem
Valve regulated batteries venting can cause electrolyte accumulation, leading to corrosion and electrical grounding issues, as existing methods fail to effectively capture and contain vented electrolyte, resulting in damage to surrounding equipment.
Innovation Solution
A containment apparatus with a reservoir, relief vent aperture, internal baffle, upper vent aperture, and push-on connection with a rubber O-ring and fixed stop, which attaches to the battery relief vent to capture liquid and vaporized electrolyte without impeding vent function, allowing gases to escape and providing visibility of vaporized electrolyte through a viewing window.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a containment apparatus is added to capture electrolyte, then electrolyte accumulation and corrosion are prevented, but device complexity increases
Solution Approach 1:
The containment apparatus serves as an intermediary device between the battery relief vent and the surrounding environment. It captures electrolyte droplets and vaporized electrolyte that escape through the relief vent, preventing them from accumulating on surrounding equipment. The apparatus includes a reservoir to collect liquid electrolyte, a baffle to condense vaporized electrolyte, and a filter to trap particulate matter, thereby mediating the harmful effects without requiring modification to the battery itself.
Solution Approach 2:
The containment apparatus is designed as a disposable or easily replaceable component. When the reservoir becomes full or the filter becomes clogged, the entire apparatus can be removed and replaced with a new one, eliminating the need for complex maintenance procedures. This approach trades the complexity of maintenance systems for the simplicity of periodic replacement, making the solution economically viable despite the added device.
2Object-affected harmful factors
If the relief vent aperture is blocked to capture electrolyte, then electrolyte containment is improved, but venting function is impeded
Solution Approach 1:
The containment apparatus segments the venting function from the containment function. The relief vent aperture remains open to allow gas venting, while separate capture mechanisms (baffle, filter, reservoir) are positioned to intercept electrolyte droplets and vapor without blocking the gas flow path. This segmentation allows both functions to operate simultaneously without interfering with each other.
Solution Approach 2:
The apparatus applies different local qualities to different regions: the relief vent aperture maintains high permeability for gas flow, while the baffle and filter regions provide high capture efficiency for electrolyte. The design creates localized zones with specific properties - the baffle provides a large surface area for condensation, the filter provides fine mesh for droplet capture, and the reservoir provides volume for liquid collection, each optimized for its specific function while maintaining overall system reliability.
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
Prevents electrolyte accumulation and corrosion, facilitates early detection of potential vent defects, and reduces the need for extensive cleaning and equipment replacement by effectively capturing and containing electrolytes released during battery venting.
Implementation Method 1
vaporized electrolyte condenses on the baffle and falls into the reservoir as droplets
Data Source
AI summary
A containment apparatus for collecting electrolyte from a battery relief vent is provided. The containment apparatus includes a body comprising a reservoir, a relief vent aperture, an internal baffle, and an upper vent aperture; a push-on connection that attaches the relief vent aperture to the battery relief vent; and a viewing window on an external side of the body. The containment apparatus attaches to a pressure relief vent on a battery to capture droplets of electrolyte that are released from the battery relief vent. Liquid electrolytes travel through the relief vent aperture and into the reservoir, and vaporized electrolyte condenses on the baffle and falls into the reservoir as droplets or travels past the baffle and is directed through the upper vent aperture via the walls. The device prevents electrolytes from accumulating on the outside of the battery and associated hardware within the vicinity of the battery.