Solid-State Battery Startup Claims Breakthrough For Electric Vehicles (electrek.co)

An anonymous reader quotes a report from Electrek: Now a startup developing all solid-state batteries (ASSB) secured backing from several high-profile investors, including several automakers, as it claims a breakthrough for the technology that will enable better electric cars. Solid Power is a Colorado-based startup that spun out of a battery research program at the University of Colorado Boulder. The company claims to have achieved a breakthrough by incorporating a high-capacity lithium metal anode in lithium batteries -- creating a solid-state cell with an energy capacity "2-3X higher" than conventional lithium-ion. They have already attracted investments from important companies, like A123 Systems and more recently BMW, which planned to validate their battery technology for the automotive market. Now they are announcing this week the addition Hyundai, Samsung and several others to the list as they close a $20 million series A round of financing. They are now working with two automakers and two battery cell suppliers for the auto industry. Some of the advantages that they claim their technology has over current batteries, as mentioned in their press release, include:

- 2-3x higher energy vs. current lithium-ion
- Substantially improved safety due to the elimination of the volatile, flammable, and corrosive liquid electrolyte as used in lithium-ion
- Low-cost battery-pack designs through: Minimization of safety features and elimination of pack cooling
- Greatly simplified cell, module, and pack designs through the elimination of the need for liquid containment
- High manufacturability due to compatibility with automated, industry-standard, roll-to-roll production

Solid Power plans to use the funds from its Series A investment to "scale-up production via a multi-MWh roll-to-roll facility, which will be fully constructed and installed by the end of 2018 and fully operational in 2019." The battery cells produced at this new facility "will be utilized for preliminary qualification of the company's solid-state cells for multiple markets including automotive, aerospace and defense."

Comments

but it's all bullshit

[gl4ss]

There's been so many now.

Even if the energy density per size of a lipo cell is already pretty dang high.

Besides, for cars the density isn't even now so much important. take a look at a tesla battery pack. how much of it is not battery? quite a lot!

the weight and safety and most importantly PRICE is the key for making a better battery technology for a car. there's just so much of these announcements that it's really hard to take any of them seriously - and frankly, we shouldn't even care before they have a production line running. they do these media announcements to boost up their visibility to have something to show to potential investors. the smart money doesn't care two fucks if it's featured on wallstreet times or whatever though - they care if it a) works b) can be produced at a good cost.

this makes it an automatic suspect when they go for high media visibility - because really, in their line of technology it's not needed. for actual breakthrough there's several billions of parked cash waiting to be dumped on it to bring some factory online. without any need to shoot for media visibility to get some investors onboard to keep the company going.

Re:but it's all bullshit

[hackertourist]

If it were all bullshit, we'd still be on lead-acid batteries. In the last 30 years, we've gone from lead-acid via NiCd and NiMH to Li-ion, with many improvements in each from the time they were first introduced until the time they were superseded. Battery capacity has increased by a factor of at least 10. Outside the bubble of the semiconductor industry and Moore's Law, that's massive progress.

Yes, not every breakthrough makes it into production. But there are plenty that do.

Also, we're not the Wall Street Times, this is a technology site. I want to know about interesting technological developments, and I don't want to limit my knowledge to just the ones that reach mainstream production.

Re:but it's all bullshit

[The Cynical Critic]

Only problem with that argument about how far we've come in the last 30 years in terms of battery technology is that we made the leap from NiCd and NiMH to Li-ion in the first few years and we've since then been pretty much stuck. The first mass produced Li-ion batteries came on to the market in 1991 and that's 27 years ago already, but we still haven't seen any new technology that improves upon it despite talk about it for at least the last 20 or so years.

Thus the "look at how far we've come in the last 30 years"-argument is kind of bung considering all the real advances were made in the first few years of that.

Re:but it's all bullshit

[cheesybagel]

The news article is rather short on facts "2-3x more density than Li-Ion" is not a quantitative statement when Li-Ion battery performance is all over the map. If they said the energy density in per 'MJ/kg' and per 'MJ/l' then it would be a quantitative statement. This announcement reeks. What it tells me is they never have manufactured a single battery cell of the required final specifications. At best they have a test battery cell much smaller in size which might not even scale up in performance. It wouldn't be the first time.

Re:but it's all bullshit

[nealric]

The first Mass-produced Li-ion batteries may have been produced in 1991, but it wasn't until around 2010 until they were used to make a viable mass-market automobile. It's only just now that we are starting to really build mass-market cars with EV range comparable to a tank of gas.

Even at the smaller scale, it's only been in the last 10 years or so that things like lithium-battery power tools have really come into their own. As recently as 5 years ago, most electric lawn tools were chintzy ni-cd powered devices suitable for only the lightest duty work. Now, you can get lithium-batteried tools that rival internal combustion counterparts and are suitable for even professional level work.

Long story short, there's been a LOT of battery development since 1991 even if the basic chemistry is mostly the same. Little 10-20% improvements compound into a revolution over time.

This one is different

[thomst]

While it is unquestionably true that /. publishes <wild_exaggeration>an average of 2,000 "battery breakthrough" stories per hour</wild_exaggeration>, this one is different from the sludgepipe of ordinary hype in two important ways:

• according to TFS, Solid Power has already secured $20 million in Series A funding to build a pilot plant, and
• some (presumably-significant portion of that funding is from BMW, Hyundai, and Samsung.

We never see that with any of the other battery-breakthrough hype pieces. They're all either announcements of tabletop-scale demonstrations (at best), or simply theoretical extrapolations of what some newly-discovered phenomenon could, eventually mean for increaing power density and/or rechargeability, making batteries out of less-expensive materials, incorporating unicorn scat, or other examples of wishful thinking in search of investors.

This one, by contrast, is an announcement unveiling a startup that has convinced some solidly-credible major corporate investors who have (at in Samsung's case) undoubtedly heard presentations on gee-whiz battery "breakthroughs" from a raft of wannabes and scam artists in the past - and have obviously passed on all of them. It's real enough that the bean-counters in these multi-billion-dollar enterprises have signed off on those investments. That's a completely different thing than the pure hype that virtually every other story on the subject consists of.

It's certainly still possible that their pilot plant will reveal scalar problems in manufacturing that eventually will relegate Solid Power's claimed breakthrough to "nice try, but no cigar" staus. It appears that we'll have to wait until 2019 to see if that happens (although, if the actual product doesn't live up to the investors' expectations, I kinda doubt we'll see a big, public announcement about it - more likely, it'll just quietly close its doors and disappear into the investor's writeoff disclosures in their annual reports to the SEC). But I'm going to give them the benefit of the doubt - at least, until their Series A financing runs out ...

(Full disclosure: I have no affiliation with Solid Power. I have no financial interest in any tech or automotive company whatsoever, nor do I advise any such entity. Hell, my wife and I own a grand total of ONE share of stock - and it's a legacy of an employee profitsharing plan from her employment in the retail sector almost 20 years ago. And, fwiw, hype of any kind tends to make me break out in acute scepticism.)