Enovix Unveils BrakeFlow™ Know-how For Lithium-Ion Battery Design

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In March, Enovix which designs and manufactures 3D Silicon™ lithium-ion batteries, introduced its newest improvement, BrakeFlow™ (BrakeFlow). The brand new BrakeFlow know-how is an intra-cell system that will increase tolerance in opposition to thermal runaway from inner shorts with out compromising excessive vitality density, the corporate mentioned in a press launch.

The corporate famous that its lithium-ion cell structure is completely different from the standard jellyroll structure which may result in a battle between vitality density and security. Its 3D cell structure makes use of a number of intra-cell options that enhance electrical, bodily, and environmental abuse tolerance. Along with the BrakeFlow know-how, the Enovix cell structure has the next options:

  • Supplies higher Lithium Plating Safety over graphite anode cells as a consequence of a 100% energetic silicon anode (140mV increased lithiation potential1)
  • Permits hotspot discount and warmth dissipation as a consequence of wonderful thermal conductivity (almost 5X cell thermal conductivity in comparison with related pouch cells2);
  • Contains enhanced safety from bodily abuse, together with crush, pinch, and nail penetration as a consequence of its mechanical inner constraint system; and
  • Is designed to restrict motion of the anode, cathode and separator as a consequence of inner “pinning,” which is a identified supply of inner shorting in standard Li-ion batteries.

Harrold Rust, co-founder and CEO of Enovix, shared a little bit of the corporate’s method and targets in a press release.

“Once we based Enovix in 2007, our method to bettering cell efficiency was distinctive from different superior battery know-how firms,” he mentioned. “Fixing a giant downside in a different way than others is inherently difficult and creates distinctive points. On the similar time, it avoids issues others face and permits new alternatives others can’t exploit and even think about. Right this moment’s announcement is a momentous day for Enovix. It’s a fantastic instance of how taking a unique method can result in game-changing know-how.”

Co-founder and CTO of Enovix, Ashok Lahiri, added:

“We consider our battery structure is likely one of the most important developments in Li-ion battery design in many years.

“Not solely does our structure allow a one hundred pc energetic silicon anode, which notably will increase vitality density, but in addition permits us to launch new improvements like BrakeFlow, which by design, reduces the temperature rise at a brief location, including distinctive tolerance in opposition to thermal runaway.”

Cam Dales, GM and Chief Industrial Officer of Enovix, spoke about security and the way BrakeFlow limits overheating.

“BrakeFlow ushers in a brand new degree of security in Li-ion battery design. Including BrakeFlow can considerably restrict overheating throughout an inner shorting occasion, which is the first reason for thermal runaway,” he mentioned. “Moreover, the mechanical robustness of our cell structure permits clients designing for rugged environmental circumstances to decide on our excessive vitality density pouch cells over decrease vitality density prismatic cells. That is simply one other instance of what units us aside from different superior Li-ion battery producers.”

The brand new know-how will change into part of Enovix’s automated tooling and manufacturing set at its Fremont manufacturing unit, Fab-1, the corporate said, whereas noting that it plans to make the know-how out there in its battery cells in 2023.


 

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