GS Yuasa Aims To Commercialize Lithium Sulfur Battery By 2020


GS Yuasa Hopes To Move From Lithium-Ion To Lithium Sulfur By 2020

GS Yuasa Hopes To Move From Lithium-Ion To Lithium Sulfur By 2020

According to Green Car Congress, the Japan Times reported that GS Yuasa has developed a potential breakthrough battery that makes use of a lithium sulfur design with up to 3 times the energy capacity of today’s lithium-ion cells.

“The battery reportedly uses sulfur as a key material in the cathode and a silicon-based anode. The company said it now aims to improve the durability of the anode , so it can commercialize the next-generation lithium-ion battery by 2020.”

“To formulate the cathode material, GS Yuasa fills sulfur into small holes on carbon rods, the company said.”

It’s widely believed that lithium sulfur is the most likely “next-generation” battery technology, to be followed by solid state.

Source: Green Car Congress

Categories: Battery Tech

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14 Comments on "GS Yuasa Aims To Commercialize Lithium Sulfur Battery By 2020"

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Dunno… Solid State might be ready and more cost effective before Li-S.

Its interesting to watch the various schemes to economically store electrical energy. I’ve calculated that with the latest ultrastorage capacitors I’d need 42,000 of them to store 53 kwh. So they’d have to be very cheap (1/8 the cost of lithium ion cells, and probably cheaper due to the hastle of there being more of them), to be competitve.

Of course, the inverter run off a capacitor bank would also have a harder job of it, since a capacitor bank would be down to 70.7% rated voltage when half full, and 50% rated voltage when quarter full. So this probably means either an additional booster/converter, or else the capacitor bank would have to be oversized to make the rest of the electronics work.

LI-ION batteries have the very nice characteristic of maintaining reasonably high voltage, until very dead, so as the rest of the car can continue to drive. It will be interesting to compare it with the Lithium-Sulfur characteristic discharge curve.

I’m surprised that InsideEVs would stoop to the level of posting vaporware battery articles. What makes this one any different than the other “battery of the week” that is always in the news?

Li-S is a very active chemistry in battery labs worldwide. It is already proven as a higher-capacity product but the main issue is the # of cycles that a battery can take before end-of-life. They need to get Li-S above 1000 recharges before it is viable. Once that happens, Li-S becomes viable. I’d like to know if there is any thermal runaway issues with Li-S. Yusasa is the maker of the cells that were implemented in the Boeing airliners but the charging equpiment apparently overcharged them past their full state of charge.

Mostly because it is GS YUASA/Mitsubishi – which was the first to develop and produce automotive format cells in mass production…and they are behind only AESC and LG Chem when it comes to volume production automotive lithium batteries.

Basically, because they are a real company and have the pockets/track record to accomplish things.

Sidenote: We do try to avoid the “breakthough of the week” by some small lab who has done something in theory without thought to cost of the cells in commercial production

OK, well, I’ll forgive you THIS time. 🙂

Seriously, though. Sometimes I think the battery breakthroughs are oil-company FUD. If they can convinced people that revolutionary batteries or fuel cells are on the verge of production, then people might stop buying current EVs.

Thanks David, (=

I certainly understand the frustration. You wouldn’t believe the amount of email spam on fantastical new battery products we run across and/or get emailed, lol.

The automotive application of battery tech can also be frustrating as OEM’s R&D/product cycles on cars are usually 5-7 years…meaning even if one of the ‘big boys’ has a new hotness ready to go, they are going to get their money’s worth out of the ‘old & busted’ until the cycle change or someone else in the industry pops the bubble.

I also think that this battery announcements are of little interest. Anything that is just 5 years out is by definition a mirage and only serve to misdirect consumer attention.

Electric cars were always 5 years away, since the 1960’s. It took Tesla to shake the car makers awake. Even now they grudgingly drag their heels with battery ranges that are achingly close but not quite.far enough.

News about emerging battery technology is the primary reason I read insider a everyday. I am very Interested in all the latest research that will have a major impact to our world. Some say that only costs matter, but they are wrong. As an engineer I can say with absolute confidence that improvements to battery energy density will be a big game changer in so many ways!

Someone should dig the archives from 2010-2012 all battery tech articles that were promising a revolutionary battery to be commercialized by the end of 2014. I wonder how many articles we can find and how many of those actually made it to the markets?

Hmm, isn’t this new from November 2014? At least that’s how I rememmber it.

Other smaller companies like Oxis (UK-based) even have hopes to commercialize Sulfur-based batteries sooner than that:

It would be great if Battery companies would publish standard test results in a simple graphic including energy density, recharge cycle capacity and cost. When Cornell can publish an article about a “new breakthrough Lithium Air Battery” that has the same issues as every other Lithium Air battery (not really rechargeable). The source is just not enough to make the article worth reading. In Cornell’s case they added water to the battery, (just the opposite of everybody else who already knows that water ruins the Lithium/Sulfur/Sodium Air batteries)

You do know Yuasa is the company that built those faulty lithium battery packs that burnt up and smoked, and grounded Boeing’s new 787 for 9 months, don’t you?

“My top advice really for anyone who says they’ve got some breakthrough battery technology is please send us a sample cell, okay. Don’t send us PowerPoint, okay, just send us one cell that works with all appropriate caveats, that would be great. That sorts out the nonsense and the claims that aren’t actually true.”

–Elon Musk