New Research Could Lead to Smaller, Cheaper and Faster-Charging Lithium Ion Batteries


Lithium-ion batteries may be employed widely in a variety of products, including hybrid and all-electric vehicles, but up until now, engineers have had a limited understanding of how lithium ions “behave”.

Professor Miroslav Krstic and postdoctoral fellow Scott Moura of the University of California, San Diego, claim they have devised new algorithms that enable them to better comprehend what’s going on inside lithium-ion batteries.

Krstic, who is a faculty member of the Department of Mechanical and Aerospace Engineering at the Jacobs School of Engineering, said that engineers overcompensate for their lack of knowledge by building batteries that are unnecessarily too large.

"If one could have a better knowledge or better estimation of what's going on inside, one could safely operate closer to the limits of performance, which means that the oversizing and overdesign would be less necessary”, Krstic told Automotive News. "That translates into savings in costs and in weight."

By applying the new algorithms, batteries could be made smaller. As a result, they would charge up to two times faster while their cost would drop by 25 percent.

Krstic and Moura will use US$415,000 out of a US$4 million DoE grant they are sharing with supplier Robert Bosch GmbH and battery maker Cobasys to continue their research.

They want to gain more info about the amount of energy that is contained within the batteries and how to better control their charging rate and improve their health.

"Our goal is to develop a certain set of algorithms and to have Bosch test these algorithms within a three-year period", Krstic said. "The schedule is very aggressive."

By Andrew Tsaousis

Story References: Automotive News




We're in the Money said... »October 11, 2012

Let's see here...United States grant money being shared with a foreign company for development—in and from the US. Hell, let's just bend-over and take it where it counts! Is there any wonder why the US economy is nosediving straight to hell!? Why worry about competitive intelligence when we don't even lock the door or even have a door to begin with? US Taxpayers' take heed as we watch other countries reap the rewards of our knowledge and money.

klowik said... »October 11, 2012

I think they are wasting their time. A superfast charging tech can now charge a Lithium ion battery in one minute.

Guest said... »October 11, 2012

I think that in the future all vehicles will get 0-100 mph under 1 sec and have electric engines size of iPhone 5 sim card.  
By the way what would happend if they load E-wagon 63 AMG 57.4 cu ft cargo space with many SLS E-Cell engines and fill it entirely of them. Would it beat Bugatti Veyron.

Treytreyhotboi said... »October 11, 2012

Seriously GM just screw the batteries and drop the next gen small block v8 into it and make it into a hardtop droptop and call it the XLR

kachuks said... »October 11, 2012

 At least this sounds like a better use of our DOE tax dollars than Solyndra grants.

Spamism said... »October 11, 2012

Not gonna happen. Better EV's are coming and more people don't want to pay for gas anymore.

The Gen V, as good as it will be in the C7, might be the end. It doesn't mean the Corvette will end, but it's powertrain will need a substantial overhall.

Evolve or die, just like in nature.

Treytreyhotboi said... »October 13, 2012

Evolve or die, so true man so true

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