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Soteria Battery Innovation Group Acquires Elegus Technologies´ Solution for Increased Cycle Life of Lithium-ion Batteries
Thursday 22 July 2021

US-based advanced technology development and licensing company Soteria Battery Innovation Group has acquired intellectual property from Elegus Technologies to improve battery cycle life and safety, the company said.

With the growing adoption of electric powertrains in both vehicles and aircraft comes a desire for longer cycle life from the expensive battery pack.

Elegus Technologies' nano-aramid separator technology is poised to meet that desire without compromising safety. Soteria is bringing Elegus' technology to its global industry consortium, promoting broad access to battery safety technologies.

This technology complements Soteria's Dreamweaver non-woven separator, which enhances thermal stability in batteries through the use of aramid fibers.

Lithium-ion cells generate both moisture and hydrofluoric acid as they age, which degrade the cells over time.

Elegus Technologies, formed as a spinout of the University of Michigan, has developed technology utilizing nano-aramid fibers that enables the separator to immobilize these harmful elements in the cell, reducing the rate of degradation and extending the life of the cell.

This is extremely important for applications such as automotive, aviation, and stationary energy storage.

Soteria's Dreamweaver non-woven battery separators use aramid fibers for increased thermal and chemical stability, preventing the separator from melting or shrinking in the presence of a defect or damage.

Elegus's technology pairs with the Dreamweaver separator without disrupting the standard cell manufacturing process, the company said.

This means that the technology will be able to be implemented on today's Gigafactory lines, allowing it to be broadly adopted without an investment in additional equipment or manufacturing lines.

Soteria's open-innovation consortium and licensing structure creates a hub for new technologies to become broadly available to the battery industry.

With the natural synergy of the Elegus technology with the Dreamweaver separator, the push towards higher energy density batteries can be realized without compromising longevity or safety.

Soteria Battery Innovation Group Inc is an advanced technology development and licensing company that has formed a consortium to promote a light, safe and cost-effective architecture for lithium ion batteries everywhere.

Soteria BIG was founded in 2017 by Brian Morin and Carl Hu, and is headquartered in Greenville, SC.
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Date Published: 22/07/2021

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