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Ford, BMW lead Solid Power’s $130M Series B round

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A Solid Power manufacturing engineer holds two 20 ampere hour (Ah) all solid-state battery cells for the BMW Group and Ford Motor Company. The 20 ampere hour (Ah) all solid-state battery cells were produced on Solid Power’s Colorado-based pilot production line. Source: Solid Power.

Solid state battery systems have long been considered the next breakthrough in battery technology, with multiple startups vying to be the first to commercialization. Automakers have been some of the top investors in the technology, each of them seeking the edge that will make their electric vehicles safer, faster and with increased range.

Ford Motor Company and BMW Group have put their money on battery technology company Solid Power.

The Louisville, Colorado-based SSB developed said Monday its latest $130 million Series B funding round was led by Ford and BMW, the latest signal that the two OEMs see SSBs powering the future of transportation. Under the investment, Ford and BMW are equal equity owners and company representatives will join Solid Power’s board.

Solid Power received additional investment in the round from Volta Energy Technologies, the venture capital firm spun out of the U.S. Department of Energy’s Argonne National Laboratory.

Solid state batteries are so named because they lack a liquid electrolyte, as Mark Harris explained in an ExtraCrunch article earlier this year. Liquid electrolyte solutions are usually flammable and at risk of overheating, so SSBs are considered to be generally safer. The real value of SSBs versus their lithium-ion counterparts is the energy density. Solid Power says its batteries can provide as much as a 50% to 100% increase in energy density compared to rechargeable batteries. Theoretically, electric vehicles with more energy dense batteries can travel longer distances on a single charge.

This latest round of investment will help Solid Power boost its manufacturing to produce battery cells with the company’s highest ampere hour (Ah) output yet. Under separate joint development agreements with Ford and BMW, it will deliver to the OEMs 100 Ah cells for testing and vehicle integration from 2022.

Until this point, the company has been manufacturing cells with 2 Ah and 10 Ah output. “Hundreds” of 2 Ah battery cells were validated by Ford and BMW late last year, Solid Power said in a statement. Meanwhile, it is currently producing 20 Ah solid-state batteries on a pilot basis with standard lithium-ion equipment.

As opposed to the 20 Ah pilot-scale cells – which are composed of 22-layers at 9×20 cm – these 100 Ah cells will have a larger footprint and even more layers, Solid Power spokesman Will McKenna told TechCrunch. (‘Layers’ refers to the number of double-sided cathodes, McKenna explained – so the 20 Ah cell has 22 cathodes and 22 anodes, with an all-solid electrolyte separator in-between each, all in a single cell.)

Unlike Solid Power’s manufacturing, traditional lithium-ion batteries must undergo electrolyte filling and cycling in their production processes. Solid Power says these additional steps accounts for 5% and 30% of capital expenditure in a typical GWh-scale lithium-ion facility.

This isn’t the first time Solid Power has landed investments from the automakers. The company’s $20 million Series A in 2018 attracted capital from BMW and Ford, as well as Samsung, Hyundai, Volta and others. It’s part of a new wave of companies that have attracted the attention of OEMs. Other notable examples include Volkswagen-backed QuantumScape and General Motors, which has put its money on SES.

Ford is also independently researching advanced battery technologies and is planning on opening a $185 million R&D battery lab, the company said last week.

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Echelon exposed riders’ account data, thanks to a leaky API

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Image Credits: Echelon (stock image)

Peloton wasn’t the only at-home workout giant exposing private account data. Rival exercise giant Echelon also had a leaky API that let virtually anyone access riders’ account information.

Fitness technology company Echelon, like Peloton, offers a range of workout hardware — bikes, rowers, and a treadmill — as a cheaper alternative for members to exercise at home. Its app also lets members join virtual classes without the need for workout equipment.

But Jan Masters, a security researcher at Pen Test Partners, found that Echelon’s API allowed him to access the account data — including name, city, age, sex, phone number, weight, birthday, and workout statistics and history — of any other member in a live or pre-recorded class. The API also disclosed some information about members’ workout equipment, such as its serial number.

Masters, if you recall, found a similar bug with Peloton’s API, which let him make unauthenticated requests and pull private user account data directly from Peloton’s servers without the server ever checking to make sure he (or anyone else) was allowed to request it.

Echelon’s API allows its members’ devices and apps to talk with Echelon’s servers over the internet. The API was supposed to check if the member’s device was authorized to pull user data by checking for an authorization token. But Masters said the token wasn’t needed to request data.

Masters also found another bug that allowed members to pull data on any other member because of weak access controls on the API. Masters said this bug made it easy to enumerate user account IDs and scrape account data from Echelon’s servers. Facebook, LinkedIn, Peloton and Clubhouse have all fallen victim to scraping attacks that abuse access to APIs to pull in data about users on their platforms.

Ken Munro, founder of Pen Test Partners, disclosed the vulnerabilities to Echelon on January 20 in a Twitter direct message, since the company doesn’t have a public-facing vulnerability disclosure process (which it says is now “under review”). But the researchers did not hear back during the 90 days after the report was submitted, the standard amount of time security researchers give companies to fix flaws before their details are made public.

TechCrunch asked Echelon for comment, and was told that the security flaws identified by Masters — which he wrote up in a blog post — were fixed in January.

“We hired an outside service to perform a penetration test of systems and identify vulnerabilities. We have taken appropriate actions to correct these, most of which were implemented by January 21, 2021. However, Echelon’s position is that the User ID is not PII [personally identifiable information,” said Chris Martin, Echelon’s chief information security officer, in an email.

Echelon did not name the outside security company but said while the company said it keeps detailed logs, it did not say if it had found any evidence of malicious exploitation.

But Munro disputed the company’s claim of when it fixed the vulnerabilities, and provided TechCrunch with evidence that one of the vulnerabilities was not fixed until at least mid-April, and another vulnerability could still be exploited as recently as this week.

When asked for clarity, Echelon did not address the discrepancies. “[The security flaws] have been remediated,” Martin reiterated.

Echelon also confirmed it fixed a bug that allowed users under the age of 13 to sign up. Many companies block access to children under the age of 13 to avoid complying with the Children’s Online Privacy Protection Act, or COPPA, a U.S. law that puts strict rules on what data companies can collect on children. TechCrunch was able to create an Echelon account this week with an age less than 13, despite the page saying: “Minimum age of use is 13 years old.”

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Casualties Mount As Violence Intensifies Between Hamas, Israel

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Israel has called up more troops and launched its heaviest assault yet along the Gaza border. Seven people in Israel have been killed. Losses are much higher on the Palestinian side.

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Palestinian Perspective: What The Conflict With Israel Looks Like From Gaza

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NPR’s Steve Inskeep talks to Omar Shaban, founder of a Gaza-based think tank, and Palestinian lawyer Diana Buttu, about how this cycle of Palestinian-Israeli violence plays out in their neighborhoods.

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