Enovix has developed a 3D silicon lithium-ion battery, which is 5-years ahead of the broader industry, with 2x higher energy density, around 900Wh/liter.
Specifically, siliconhas up to 10x higher energy density than graphite as an anode material, but it is prone to swelling 300-400% when charging/discharging, and Enovix’s solution aims to overcome this issue.
The company went public via SPAC in February-2021, acquired by Rodgers Silicon Valley, with an implied post-deal valuation of $1.12bn.
This data-file assesses 10 Enovix patents from 2019-20, using our methodology for evaluating early-stage technology breakthroughs. Thus we have scored the specificity and intelligibility of Enovix’s core technology. Our conclusion are laid out in the data-file.
StoreDot is developing “extreme fast-charging” batteries for electric vehicles, using a proprietary range of nanomaterial additives. It claims its prototype cells can charge 5-6x faster than conventional lithium ion. The company is based in Israel, has raised over $130M, and secured backing from BP, Daimler and Samsung.
This data-file assesses 10 StoreDot patents from 2019-20, using our methodology for evaluating early-stage technology breakthroughs. Thus we have scored the specificity and intelligibility of StoreDot’s core technology. Our conclusion are laid out in the data-file.
This data-file reviews 25 of QuantumScape’s 2019-20 patents, in order to substantiate its claims of a solid-state battery than can achieve c50-100% higher energy density than conventional lithium ion batteries, 3x faster charging, while also surviving hundreds of charge-discharge cycles without degradation.
The single largest patent challengethat QuantumScape was aiming to overcome was manufacturing methods, discussed in 75% of the patents. This augurs well for transitioning into production mode.
Preventing dendrites and ensuring cell longevitywere related, joint-second focus areas. Quantumscape is light years ahead of competitors, but the longevity is not fully de-risked by these patents.
Quantumscape’s proprietary cell designsare also assessed in the data-file,ranging from electrolytes and catholytes to more cutting-edge moonshots.
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