A Chinese startup may have cracked solid-state batteries
Solid-state batteries have long been heralded as The Next Big Thing after lithium-ion, with companies from all quarters racing to get them into high-volume production. Dyson, BMW and car manufacturer Fisker are just a few names that have been working on the tech for the last few years, but now, reports suggest a Chinese start-up might be the first to have cracked it.
According to Chinese media, Qing Tao Energy Development Co, a startup out of the technical Tsinghua University, has deployed a solid-state battery production line in Kunshan, East China. Reports claim the line has a capacity of 100MWh per year -- which is planned to increase to 700MWh by 2020 -- and that the company has achieved an energy density of more than 400Wh/kg, compared to new generation lithium-ion batteries that boast a capacity of around 250-300Wh/kg.
Details beyond this are sparse. The headline news here, if accurate, would be that the company has managed to put solid-state batteries into high volume production, but it's not clear how Qing Tao Energy Development has achieved this, nor what price points are involved. Furthermore, while a capacity of 100MWh is not to be sneezed at, it still only equates to fewer than 2,000 long-range EVs per year. Nonetheless, the news demonstrates that progress is happening in the solid-state battery arena. We might not feasibly yet be at high volume production, but we're on our way.
译文来源：三泰虎 http://www.santaihu.com/46557.html 译者：Jessica.Wu
Steve C16 hours ago
One day battery breakthroughs will give electric cars similar range as gas cars and quick recharge times. Then will become car of choice.
A16 hours ago
Everyone needs good affordable and dependable power supply when the electric company goes down.
Guy Incognito16 hours ago
"but it's not clear how Qing Tao Energy Development has achieved this, nor what price points are involved."
In other words it's long on claims, and short on proof...
B777_9X17 hours ago
I will buy an electric-only car when I can fully charge it in 5 or 6 minutes. Perhaps we need a different direction, instead of parking and charging, we standardize a "cartridge" containing charged capacitors. You pull up to a vending machine (like you would a gas pump), exchange your cartridge, and the capacitors recharge your batteries as you drive. I'm not an electrical engineer, I'm a mechanical engineer, but seems some kind of tech like this would work.
Greg17 hours ago
....good news.....lots of money now to be made in battery technology if you are a leader....
Joe15 hours ago
I see a lot of articles that mention startups. Wasn't every business that ever existed a startup at the beginning? When does a company stop being called a startup?
Greg12 hours ago
It's not so much about getting the tech to work, but getting a tech that can be scaled up to mass produce.
It will happen, and more than one company will do it. And when it happens, we will be way better off.
MFWIC16 hours ago
Chinese currently make a lot of rechargeable batteries from LION to NiMH. When you compare the number of cycles and how much charge it can hold after 100 cycles and the rate of self discharge. The Chinese batteries lose to the Japanese made ones by a long shot. So they may be able to pump out cheap solid state batteries, but I bet the performance is not as good as it should be.
Editor15 hours ago
There is nothing new about solid-state batteries, they have been around for decades. The problems have been low energy-density, mechanical fragility, poor performance at low temperatures, and manufacturing cost. It is unsurprising that the Chinese would make advances in solving the manufacturing cost problem. As always, the product characteristics are the next issue.
eat-right17 hours ago
Chinese companies tend over-promised but under delivered. I'll wait and see.
Linda Sutherland15 hours ago
Even an energy density of 400 Wh/kg is nothing much. In more scientific units, thatis about 1.4 megajoules / kg. In contrast, gasoline has around 50 megajoules / kg.
Gregory15 hours ago
The problem (both li-ion and solid state) with these batteries is that they can not tolerate cold. If you tried to charge these batteries in say an Iowa winter it will destroy them. You must bring them inside, bring up the temps for a couple of hours and then charge. Not really handy when it's zero degrees outside.
Trumpanzees15 hours ago
ROFL, it seems like once a week there's news of some Chinese company who have made a stunning technological breakthrough in some area or another. But the promised products either fail to appear altogether or they don't meet the performance claims. I'm not sure if the Chinese are really enthusiastic about marketing or they are just really bad at science and turning basic science into marketable products. But currently, I do not believe and claims coming out of China until the product has been tested and verified by independent testers and consumers.
Gary71315 hours ago
What are the range and power density when comparing it to Li Ion batteries? It's just hype without any details.
Chris16 hours ago
I imagine they either stole different technologies and were able to cobble them together
ceyhun c17 hours ago
In anaother words another group of chinese students/spies brought back some more research studies from American universities/companies.
Consultofactus12 hours ago
I don't know about Qing Tao's batteries, but their beer is surprisingly good...
tamas14 hours ago
When I was growing up in the 1970s, a product labeled "Made in Taiwan" was the butt of jokes and the likes of plastic toys found in cereal boxes. Now some 70% of laptops are made with chips "made in Taiwan." The same thing is happening in mainland China (where many of the large companies are actually owned by Taiwanese). And the economy of mainland China will soon be overtaking the debt drowning, infrastructure crumbling, healthcare disaster US economy.