In the last post, Physics and Chemistry, I published the second excerpt from an article “A New and Innovative 3D Architecture for Lithium Batteries.” Ashok Lahiri, Enovix co-founder and CTO, authored the article that appears in the latest issue of Applied Wireless Technology. Following is the third excerpt. A New, Modern Li-ion Battery Platform In 2007, three cofounders and I started Enovix Corporation, initially under the operating name microAzure. Two



In the last post, The Technology Path to Modern Mobile Devices, I published the first excerpt from an article “A New and Innovative 3D Architecture for Lithium Batteries.” Ashok Lahiri, Enovix co-founder and CTO, authored the article that appears in the latest issue of Applied Wireless Technology. Following is the second excerpt. Physics and Chemistry Mobile device technology and conventional Li-ion battery technology are rooted in two different fields of



Ashok Lahiri, Enovix co-founder and CTO, authored an article, “A New and Innovative 3D Architecture for Lithium Batteries”, that appears in the latest issue of Applied Wireless Technology (you can read the complete article beginning on page 12 of the issue). Following is an excerpt from the article, and I’ll post a few more over the coming weeks. A modern compact, mobile device, such as the smartphone shown below, is only



As an innovator in advanced lithium-ion battery technology, Enovix follows the work of others in the field closely. Researchers have long tried to develop safe, high-energy batteries using lithium (Li) metal as the active anode material. A July 12, 2017 article by David L. Chandler in MIT News, “Study suggests route to improving rechargeable lithium batteries,” reports on a study that indicates smooth surfaces may prevent harmful deposits from working



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



This is the third 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 and illustrates how thermal runaway can occur in a conventional Li-ion battery. The polymer separator is an inactive material and has to be physically longer and wider than the electrodes to make sure



This is the second in a series of posts from the article, “How to Build a Safer, More Energy-Dense Lithium-ion Battery” authored by Ashok Lahiri, Nirav Shah, and Cam Dales of Enovix. Following is an excerpt from the article regarding how our 3D cell architecture enables us to incorporate a 100% silicon anode. Our flat-cell architecture can take full advantage of a number of advances in electrode chemistry. To understand



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 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