![]() QuantumScape was able to repeat that 800-cycle test twice last year with slightly scaled-up batteries. In that 2020 livestream test that sent the company's stock soaring, QuantumScape said a tiny prototype of its battery held up for over 800 cycles of charging and draining - roughly the number that an EV's battery would endure over its lifetime.īut that test battery was a scaled-down version, and sizing up to a battery that's ready for use in electric vehicles has been a slow process. But in lab testing, its technology appears to work. QuantumScape is still at least a few years away from being able to mass produce its batteries. If it works as intended, solid-state batteries should be able to survive for as long as a typical lithium-ion battery while maintaining all the hoped for benefits. ![]() QuantumScape's key innovation is a separator made of a proprietary flexible ceramic material that resists dendrites and can't catch fire. Such batteries were prone to failure because of dendrites - needle-like structures that form inside, often in a matter of weeks, that can short circuit them and end their life. Researchers had been tinkering with solid-state batteries for decades, without success. "If QuantumScape can get this technology into mass production, it holds the potential to transform the industry," said Stan Whittingham, co-inventor of the lithium-ion battery and winner of the 2019 Nobel Prize in chemistry, in a QuantumScape press release. QuantumScape's battery cells were "capable of lasting hundreds of thousands of miles" in a wide range of temperatures, including as cold as minus 22 Fahrenheit.An EV using the company's batteries would have up to 80% more range than one powered by current lithium-ion batteries, with similar weight.QuantumScape's batteries could recharge from zero to 80% of capacity in just 15 minutes, about half the time required by most lithium-ion EV batteries.Here are some of the claims he made during a livestreamed presentation of early test results: In December 2020, QuantumScape CEO Jagdeep Singh promised a reliable solid-state battery, at scale, by roughly the middle of the decade. A solid-state battery pack can be smaller and lighter than a lithium-ion battery pack of similar capacity, and the absence of liquid inside makes them less likely to catch fire. The batteries that QuantumScape is working to develop are called "solid state" because they don't need the liquid or gel electrolyte found inside existing batteries. Personal Loans for 670 Credit Score or Lower ![]() Personal Loans for 580 Credit Score or Lower All rights reserved.Best Debt Consolidation Loans for Bad Credit Other trademarks are property of their respective owners. EquityZen and logo are trademarks of EquityZen Inc. By accessing this site and any pages thereof, you agree to be bound by our Terms of Use. Check the background of this firm on FINRA’s BrokerCheck.Į is a website operated by EquityZen Inc. EquityZen Securities is a broker/dealer registered with the Securities Exchange Commission and is a FINRA/ SIPC member firm.Įquity securities are offered through EquityZen Securities. See our Risk Factors for a more detailed explanation of the risks involved by investing through EquityZen’s platform.ĮquityZen Securities LLC (“EquityZen Securities”) is a subsidiary of EquityZen Inc. Investors must be able to afford the loss of their entire investment. Investing in private companies may be considered highly speculative and involves a high degree of risk, including the risk of substantial loss of investment. Investment opportunities posted on this website are "private placements" of securities that are not publicly traded, are subject to holding period requirements, and are intended for investors who do not need a liquid investment.
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