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View Full Version : Li-Ion Battery Technology advance by Daimler


xcel
02-29-2008, 10:48 AM
Not really a breakthrough in technology, but advanced climate control technology that maintains the battery within a tighter temperature band under all driving scenarios. (http://www.cleanmpg.com/forums/showthread.php?p=74452)

http://www.cleanmpg.com/photos/data/501/2009_MB_S_400_BlueHybrid.jpgWayne Gerdes - CleanMPG (www.cleanmpg.com) - Feb. 29, 2008

2009 MB S 400 BlueHybrid w/ Hybrid module and an all-new Li-Ion pack - Gasoline powered V6 w/ V8 like performance and 29.8 mpgUS combined on the Euro test cycles.

Daimler AG using its own in-house technology has succeeded in becoming the first to adapt Li-Ion technology to a consumer ready automobile. The new battery and technology will be used in the series-production S 400 BlueHYBRID starting next year. This was made possible thanks to 25 patents held by Daimler.

“What we have here is a groundbreaking key technology that is going to be a decisive factor for the future success of the automotive industry” said Dr. Thomas Weber, member of the Daimler AG Board of Management and responsible for Group Research and Mercedes-Benz Cars Development. “That is a tribute to our intensive research efforts, which we have been conducting in this area since 1992.”

The advance is a Daimler-developed integration of the Li-Ion battery into the vehicle’s climate control system which ensures the battery always performs at optimal system temperatures of between 15 and 35°C. With a limited range of SoC and tight tolerances on the temperature band in which the battery operates, a long service life and maximum performance is guaranteed.

The main advantages offered by Li-Ion batteries are compact dimensions and superior current input/output performance when compared to the current crop of NiMH batteries found in most hybrids today. What’s more, Li-Ion battery technology stands out with its high ampere-hour efficiency and great reliability (even at very low temperatures) while maintaining the highest level of safety throughout its service life.

Lithium-ion batteries are ideally suited for use in hybrid vehicles to reduce fuel consumption and thus CO2 emissions.

Expect to see this upcoming Li-Ion battery and control technology in future MB gas and diesel hybrids in the not too distant future.

Right Lane Cruiser
02-29-2008, 11:16 AM
"Cool" stuff. ;)

I'm looking forward to the widespread adoption of lithium based battery tech in the auto industry -- it will make for some interesting offerings!

Hopefully the A123 tech won't require such tight control of the temperature -- that should help reduce cost and improve efficiency by reducing the need for climate control mechanisms.

Dogarm
02-29-2008, 01:35 PM
I am curious how small a battery they are using. Strange that one doesn't tend to hear those numbers. They'll disclose engine displacement, HP, kW for electric motor, but not how much battery is being used. Makes it kinda hard to get a feel for how well batteries are advancing, and what keeps PHEVs or EVs from being feasible...

Now that the whining is done, I found this quote from the release:
"The weight/power ratio of the entire battery is 1,900 watts per liter (W/L). What's more, the battery stands out by virtue of its high ampere-hour efficiency, long service life, and great reliability"

Naturally, they give info about Power for the battery, rather than Capacity. And volume rather than mass. Sigh. But, hey, it's a power luxury hybrid... And the nice Power density might speak well for brake E recapture.



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