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Porvair launches super hydrophobic flame arrestor vents for lead-acid battery safety

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UK-based Porvair Filtration (Porvair) has developed flame arrestor vents with super hydrophobic Vyon materials to safeguard potential explosions in lead-acid batteries.

According to Porvair, the super hydrophobic material is resistant to most acid, organic chemicals and temperatures up to 110ºC while offering chemical capability. They are designed to reduce the risk of acid spillage and to release excess gas from lead-acid batteries during operating cycles and prevent flame ingress into the battery.

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Tokyo-based W-Scope Corporation has developed a separator for lithium-ion batteries that can withstand higher temperatures without damage, increasing safety by reducing the risk of battery fires.

The new separator material can withstand temperatures of 200°C for one minute without damage. In comparison, other separators can only withstand temperatures up to around 160°C, according to W-Scope.

The company has begun shipping samples and plans to begin mass production of the new separator in the second half of the year, offering versions in thicknesses ranging from 0.03 mm to less than 0.01 mm.

W-Scope predicts around 10 firms will begin using its new separators during 2013, and that by 2015 these value-added products will account for roughly 30% of its overall separator shipments.