This is the fourth (and final) in a series of posts from the IEEE Spectrum article, “How to Build a Safer, More Energy-Dense Lithium-ion Battery,” authored by Ashok Lahiri, Nirav Shah, and Cam Dales of Enovix. The article describes how we use photolithography and wafer processing techniques to fabricate our 3D Silicon™ Lithium-ion battery. To fabricate the Enovix battery, we begin with a wafer of silicon that’s 1 millimeter thick. This doesn’t

Power Electronics is a Penton publication. Its expert editors report on the engineering, design and integration of power electronic system applications, such as battery-powered systems, consumer, commercial and industrial power electronic systems; and power systems for electric and automotive transportation. In an August 2, 2017 article, Sam Davis, editor-in-chief, writes that, “Large-scale adoption of wearable devices will depend on availability of two important technologies: improved batteries and higher density transistor

IEEE Spectrum recently published an article, “How to Build a Safer, More Energy-Dense Lithium-ion Battery,” authored by Ashok Lahiri, Nirav Shah, and Cam Dales of Enovix. It describes how our patented 3D cell architecture and silicon wafer production produces a lithium-ion battery with increased energy density and improved safety. I’ll be serializing key parts of the article over the next few posts. Following is the first excerpt from the IEEE

The first three posts in this series described how Dr. Richard Swanson started SunPower, how T.J. Rodgers forever changed SunPower’s future, and how Cypress production processes helped SunPower combine innovative technology with low-cost, high-volume production to transform the solar industry. The final post illustrates the results of these events. Creating $7.6 Billion of Shareholder Value SunPower began commercialization of its high-efficiency solar panels in 2004. Revenue quickly grew from $10.9

In the second post of this series, I described how a chance encounter between two old college classmates forever changed SunPower’s fortunes, and that semiconductor and solar cell production had little in common. This post describes how Cypress process controls and production innovations were implemented to accelerate learning and achieve low-cost, high-volume production of high-performance solar cells. The Cypress Years, Part Two: Processes, Autoline and Accelerated Learning Chuck Stone was

In the first post of this series, I described how Dr. Richard Swanson, a professor of electrical engineering at Stanford University, founded SunPower and developed innovative, high-performance solar cells between 1985 and 2001. This post describes how a chance encounter with an old college classmate would forever change SunPower’s fortunes. And that semiconductor and solar cell production have little in common. The Cypress Years, Part One: Semiconductors and Solar Cells Cypress

The Enovix model for the development and production of our 3D silicon lithium-ion cells closely resembles the SunPower model for low-cost, high-performance solar cells. This is due to our relationships with Cypress Semiconductor, and, especially, with T.J. Rodgers. I recently had an opportunity to learn more about the history and legacy of SunPower, including interviews with T.J. Rodgers, founder of Cypress Semiconductor, and with Chuck Stone, Enovix vice president of

The Institute of Engineering and Technology (IET) traces its heritage to 1871. Today its mission is to, “inspire, inform and influence the global engineering community, supporting technology innovation to meet the needs of society.” E&T (Engineering and Technology) is the IET’s award-winning monthly magazine and associated website for professional engineers. E&T recently published an article by Holly Cave titled, “Charging ahead: the bid for better EV batteries.” The article’s premise

If this is the first post you’ve read in this series, BUILDING A BETTER BATTERY, you may want to take a look at Parts One, Two, Three, and Four for complete context. A Better Business Model Enovix was conceived with a conviction that building a better battery involves more than just technology; it requires a new business model with ownership of intellectual property (IP) and direct production control. Since 2012,

If this is the first post you’ve read in this series, BUILDING A BETTER BATTERY, you may want to take a look at Parts One, Two and Three for complete context. In the prior post, I outlined the Enovix co-founders’ vision for building a better battery. It’s differs from that of many other battery startups in several aspects. First, rather than pursue a novel chemistry, Enovix sought to unlock the