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Separator tech to prevent battery fires – pv magazine International


Nuvola Expertise says it has developed a direct deposition polymer separator expertise that may remove the primary reason behind lithium-ion battery fires.

Nuvola Expertise has unveiled its patented direct deposition separator expertise, which may exchange standard movie separators and supply extra enhancements in security and efficiency.

The SafeCoat Direct Deposition Separator materials is the primary product launched by the Los Angeles-based startup, previously often called Millibatt. Beneath its former title, the venture-funded firm targeted on small, rechargeable, high-density batteries for wearables, biomedical units, and Web of Issues sensor purposes.

Nuvola mentioned it was chosen as one in all 10 winners of LG Vitality Resolution’s annual 2022 Battery Problem. The competitors brings collectively greater than 100 corporations with new battery applied sciences and enterprise fashions.

SafeCoat is described as a chemistry-agnostic, drop-in resolution for lithium-ion batteries that’s appropriate with mainstream lithium-ion manufacturing strategies. The porous polymer coating sprayed instantly over the whole floor of the electrode encapsulates and protects them from a thermal runaway and a possible hearth.

In keeping with Nuvola, the weak level of the battery system is the hundreds of tissue-paper skinny folded sheets of a porous plastic membrane that separate the electrodes and make the battery susceptible to errors and failures.

“In the course of the battery meeting course of, a sheet separator could be broken, creating an invisible wrinkle, misalignment, misfolding, or perhaps a small tear that permits the electrodes to come back into contact. This may trigger a hearth – days, months, or years later,” mentioned the corporate.

Along with bettering security, Protected Coat is claimed to extend the lively quantity of battery materials, bettering vitality density by as much as 20%. Decreasing the thickness of the separator from the plastic movie separator’s 20μm to SafeCoat’s 5 μm layer leaves extra room for lithium ions in the identical bodily house.

In keeping with the corporate, the Nuvola SafeCoat product is at present being evaluated by a number of main battery producers and automobile producers. It expects merchandise utilizing the expertise to hit the market by 2025.

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