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QuantumScape Corporation

QuantumScape validates solid-state lithium-metal battery claims with third-party test results

Mon, 11/08/2021 - 10:45 -- paul Crompton

Battery developer QuantumScape Corporation has released results from an independent third-party laboratory testing report on the performance of its solid-state lithium-metal battery cells.

The firm’s single-layer cells met automotive-relevant conditions, achieving more than 800 cycles— roughly equivalent to 240,000 miles driven for a 300-mile range vehicle, say the firm.

The results, from testing conducted by Mobile Power Solutions, go some way to answering questions over the company’s technology, or at least its claimed progress. 

The results reflect a complete cycle-life test that demonstrates conditions the company believe must be met, which include: operating at 25 °C, 1C (one hour) charge/discharge rates (with energy retention maintained at more than 80%), 100% depth of discharge and under 3.4 atmospheres of pressure.

Jagdeep Singh, CEO and co-founder of QuantumScape, said: “We are happy that these independent test results substantially replicate the cycling performance we reported at our December 2020 Battery Showcase.

“With the publication of this report, we will continue to focus on our product roadmap goals and delivering cells to our customers.”

Mobile Power Solutions is an independent battery laboratory, ANAB accredited to ISO/IEC 17025:2017, based in Beaverton, Oregon.

The full cycle life test report from Mobile Power Solutions is available here.

Quantumscape believe the results, covering a group of three single-layer cells, are consistent with those initially reported by it last December, and subsequently questioned the following month.

The company’s stock price tumbled by around 41% on 4 January following a report on Seeking Alpha website by Dr Brian Morin, CEO of Soteria Battery Innovation Group, that questioned the technology’s capabilities.

At the time, Morin said that QuantumScape’s technology did not meet its claimed data on low temperature operation, low temperature life and energy density.

He said in the Seeking Alpha report: “They show 100 or so cycles at -100C. Respectable, except that these cycles are at C/5 charge and C/3 discharge. Thus, not 80% in 15 minutes, but rather 5% charge in 15 minutes.”

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Solid-state lithium-ion maker QuantumScape secures $100M funding after hitting VW’s technical tests

Thu, 04/29/2021 - 10:59 -- Vic

Volkswagen Group of America Investments will invest a further $100 million into QuantumScape after the solid-state lithium-ion battery developer successfully met a key technical milestone.

The milestone required Volkswagen to successfully test the latest generation of QuantumScape’s solid-state lithium-metal cells in their laboratories in Germany. 

The funding is the second and final closing under last year’s stock purchase agreement between the companies that provided for a $200 million investment. 

The closing will occur following expiration of the waiting period or other clearance under the Hart-Scott-Rodino Antitrust Improvements Act of 1976.

The companies will work jointly to bring solid-state lithium-metal battery technology into industrialised mass-production, said Jagdeep Singh, co-founder and CEO of QuantumScape.

The companies formed a joint venture in 2018 to work together on solid-state batteries with Volkswagen investing $100 million at the time.

In January, QuantumScape’s share price tumbled by around 41% following a report on Seeking Alpha website by Dr Brian Morin, CEO of Soteria Battery Innovation Group, that questioned the technology’s capabilities.

The stock price fall led to two separate lawsuits in the US. 

This month also saw Celina Mikolajczak join the company’s board as an independent director. 

Mikolajczak is vice-president of engineering & battery technology at Panasonic Energy of North America.

She has also served as director of engineering focused on battery development for Uber Technologies, and senior manager for cell quality and materials engineering at Tesla Motors— helping to develop the battery cells and packs for Tesla’s Model S, Model X, Model 3, and Roadster Refresh.

On 2 April, QuantumScape Battery, a subsidiary of QuantumScape, leased 196,600 square feet building in San Jose, California, US, according to Bay Area news outlet the Mercury News.

The research and manufacturing site building more than doubles the space that the company occupies in the Bay Area at its 87,100 square feet headquarters on Technology Drive in San Jose.

The lease is scheduled to begin in December and is stated to expire in September 2032.

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Merger paves way for solid-state lithium-metal battery production

Wed, 09/09/2020 - 10:08 -- paul Crompton

Battery developer QuantumScape Corporation is set to start production of its solid-state lithium-metal batteries via its joint venture with the Volkswagen Group following a billion dollar merger with Kensington Capital Acquisition Corp.

The California, US, based firm is expected to receive more than $1 billion in cash and funding commitments, led by Volkswagen and Qatar’s sovereign wealth fund, as part of the transaction.

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