24M® Introduces ImpervioTM — a Separator Technology That Delivers Unprecedented Safety Improvements for Lithium Batteries


ImpervioTM guarantees to remove mass recollects by suppressing dendrites whereas detecting and stopping inner shorts.

As we speak, 24M unveiled a revolutionary new battery separator – 24M ImpervioTM – that guarantees to redefine battery security for electrical automobile (EV), vitality storage system (ESS) and functions. to the patron. This proprietary expertise allows unprecedented security enhancements for lithium-ion and lithium-metal batteries that facilitate the prevention of catastrophic fires and main recollects brought on by metallic dendrites (ie dendrites from of steel contamination launched throughout the manufacturing course of), electrode misalignments or lithium dendrites. 24M ImpervioTM achieves these outcomes by blocking metallic dendrite formation, in addition to by measuring battery efficiency thus enabling early fault detection.

“The sweeping security enhancements demonstrated by 24M ImpervioTM are important to fulfill the rising demand for EV and ESS, which depend on next-generation battery applied sciences,” mentioned 24M CEO Naoki Ota. “This can open up a brand new world of progress for battery-powered functions by eliminating the concern of catastrophic security failures.”

“For years security challenges have restricted the business viability of essentially the most promising next-generation cell chemistries,” commented 24M Chief Scientist and MIT Professor But-Ming Chiang. “The flexibility to regulate dendrites and detect inner defects demonstrated by 24M ImpervioTM allows the commercialization of a brand new class of enormous space, excessive vitality density batteries based mostly on lithium-metal and silicon-dominant chemistries.”

Whereas lithium-ion continues to be the popular battery chemistry, it has been affected by security challenges, together with the formation of dendrites – steel constructions that may construct up on the floor of the anode that may short-circuit the battery cell, which can result in fires. 24M ImpervioTM expertise prevents this in a fail-safe manner of battery security by:

Dendrite prevention: Beginning on the supply with proprietary separator expertise that forestalls the expansion of dendrites.
Early fault detection: 24M ImpervioTM repeatedly screens the cell and detects a possible quick earlier than it happens and allows a secure discharge and shutdown of the person battery cell. It additionally prevents mass recall of merchandise by concentrating on faulty merchandise and recalling solely these merchandise.
Integrates lithium-metal and standard lithium-ion batteries: 24M ImpervioTM provides the identical security advantages for standard lithium-ion and lithium-metal cells because it does for 24M SemiSolidTM cells.
Preliminary Testing

24M inner comparative assessments of baseline cells, NMC/graphite cells with out ImpervioTM, towards the identical cells with ImpervioTM, confirmed important security benefits of the ImpervioTM cell.

In a single take a look at, the cathode of the baseline and ImpervioTM cells was deliberately contaminated with ~1% stainless-steel. That is the explanation that the baseline cell is brief instantly after formation, whereas the ImpervioTM cell, underneath the identical situations, resists the stainless-steel dendrite and exceeds 800 cycles with a retention capability of greater than 83%.

Within the second take a look at, the baseline and ImpervioTM cells have been deliberately uncovered to copper on the anode to stimulate the formation of lithium-metal dendrites. This results in a quick gentle quick within the baseline cell, whereas the ImpervioTM cell prevents the lithium-metal dendrite and delivers sturdy coulombic effectivity throughout biking – which means no gentle quick between the cathode and anode.

24M expects to completely exhibit mass manufacturing of ImpervioTM by the top of 2024 and introduce it to the market in 2025 or 2026. 24M is at the moment working with quantity manufacturing companions and license companions for the preliminary product launch .

This newest 24M innovation stems from the corporate’s launch of transformative electrode-to-pack battery expertise – 24M ETOPTM – which units the inspiration for the system’s unmatched vitality density. With the introduction of those new applied sciences, 24M is shifting past its core expertise — the 24M SemiSolidTM and Unit Cell manufacturing platform — and providing a revolutionary set of applied sciences that may ship a greater vitality future.

To study extra about these improvements and extra, go to 24-m.com or these upcoming business occasions:

January 9 to 12 at CES: Las Vegas Conference Middle North Corridor, sales space 10937
February 19 to 22 on the NAATBatt 2024 Constructing Capability Convention
About 24M

24M addresses the world’s want for inexpensive vitality storage by providing a revolutionary battery manufacturing and product design expertise powered by the 24M SemiSolid™ and Unit Cell manufacturing platform. By reinventing present battery merchandise and manufacturing strategies, 24M solves a essential, decades-old problem associated to the world’s most well-liked vitality storage merchandise and applied sciences: lowering their excessive prices whereas bettering their efficiency, security and recycling. Based and led by a few of the battery business’s main inventors, scientists and entrepreneurs, 24M is positioned in Cambridge, Mass. For extra data, please go to www.24-m.com.

24M® is a registered trademark of 24M Applied sciences, Inc.

Impervio™, 24M SemiSolid™ and 24M ETOP™ are pending logos of 24M Applied sciences, Inc.



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