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How to Build a Safer, More Energy-Dense Lithium-ion Battery

Chipmaking techniques contribute to a three-dimensional battery design that outperforms today’s best cells

11 min read
Enovix 3D Silicon Lithium-ion Battery
Stacked Deck: This cutaway view of an Enovix 3D Silicon lithium-ion rechargeable battery prototype has three stacked 1-millimeter-thick cells.
Photo: Enovix Corp.

Hardly a month passes without shocking news of lithium-ion batteries catching fire: Laptops are torched, airlines are grounded, hoverboards go up in flames. The 2016 fires inside Samsung’s Galaxy Note 7 smartphone led to a $US 5 billion recall and then to a discontinuation of the model, moves that together cut Samsung’s market capitalization by many billions.

In January 2017, after months of speculation, Samsung announced that two separate design problems created the battery malfunctions that caused some of the devices to overheat. That different design flaws can produce the same catastrophic outcome underlines the inherently unstable nature of today’s Li-ion batteries. Any mobile product incorporating them is thus potentially unsafe.

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Medal of Honor Goes to Microsensor and Systems Pioneer

The UCLA professor developed aerospace and automotive safety systems

3 min read
Photo of a man in a blue jacket in front of a brick wall.
UCLA Samueli School of Engineering

IEEE Life Fellow Asad M. Madni is the recipient of this year’s IEEE Medal of Honor. He is being recognized “for pioneering contributions to the development and commercialization of innovative sensing and systems technologies, and for distinguished research leadership.”

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Video Friday: An Agile Year

Your weekly selection of awesome robot videos

3 min read
Video Friday: An Agile Year

Video Friday is your weekly selection of awesome robotics videos, collected by your friends at IEEE Spectrum robotics. We’ll also be posting a weekly calendar of upcoming robotics events for the next few months; here's what we have so far (send us your events!):

ICRA 2022: 23–27 May 2022, Philadelphia
ERF 2022: 28–30 June 2022, Rotterdam, Germany
CLAWAR 2022: 12–14 September 2022, Açores, Portugal

Let us know if you have suggestions for next week, and enjoy today's videos.

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Fix DFM hotspots in P&R with sign-off confidence
Fix DFM hotspots in P&R with sign-off confidence

This paper introduces the Aprisa low power solution and innovative low-power methodology to quickly converge on low-power-optimized power, performance, and area.