New battery technology claims 300Wh/kg

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cambridge_jay
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New battery technology claims 300Wh/kg

Postby cambridge_jay » Wed Dec 08, 2010 5:51 pm

The German company DBM Energy claims to have developed a Lithium Metal Polymer battery that will effectively make all other technologies obsolete.

http://sufiy.blogspot.com/2010/10/lithi ... m-dbm.html

harry morris
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Re: New battery technology claims 300Wh/kg

Postby harry morris » Wed Dec 08, 2010 9:55 pm

cambridge_jay wrote:The German company DBM Energy claims to have developed a Lithium Metal Polymer battery that will effectively make all other technologies obsolete.

http://sufiy.blogspot.com/2010/10/lithi ... m-dbm.html


WOW, that's fantastic all we need now is for these batteries to become available!!! wander when that will be another ten years perhaps while they develop this NEW technology,

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Jeremy
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Re: New battery technology claims 300Wh/kg

Postby Jeremy » Thu Dec 09, 2010 11:31 am

This seems like one heck of a jump in energy density if it's true.

My folding bike pack (LiCoO2 Lithium Polymer) is almost exactly 150Wh per kg, and it's using some of the lightest pouch type cells that are currently available, intended for use in model aircraft. To have doubled the energy density in one step, and to have kept quiet about it until it's viable enough to build a pack and power a car, seems slightly suspect to me. If it's true, then that's great news, but at the moment I'd treat the quoted figures with a certain amount of suspicion.

Jeremy

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badnewswade
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Re: New battery technology claims 300Wh/kg

Postby badnewswade » Thu Dec 16, 2010 12:04 pm

Perhaps it's just poorly translated, but... it does seem to be written in the sort scam-o-marketing speak you expect from Viagra salesmen and the like.

Note the use of bold!!! Also notice that it has lots of exclamation marks!! And quite AMAZING claims!!!! Like being able to drive a car for 20 years and charge it up in 6, count 'em, 6 mins flat!!! and it's made of Lithium!!!111one Like the stuff in my special pills!!!! which I forgot to take!!!!!

But then, perhaps I'm just cynical.
34 Watt Hours per mile, or > 700 MPG. What, me, smug?

ex925
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Re: New battery technology claims 300Wh/kg

Postby ex925 » Mon Dec 27, 2010 9:45 am

Tried to work out who was putting in the bold type, read all the links
My best guess is maybe the blogger put the bolds and exclamation-marks in?
Perhaps the blogger tried to preserve enough healthy cynicism?
Possibly the blogger also wished to show their cautious attitude to readers?
The disclaimer in the side-bar appears to warn against hyperbole

I think it would be worth watching for any further news of this "breakthrough".....
Just in case anything positive emerges, OR, any proof of scam.........

All the best
Ed

Deker
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Re: New battery technology claims 300Wh/kg

Postby Deker » Sat Jan 22, 2011 5:10 am

Hmm, just done a quicky calc.

6 minute charge at 380v at 100 amps only = 3,800 watts.

The charger must be MASSIVE.

Gives one the feeling that a 235v 13 amp household plug wouldn't do much (In 6 mins) :shock:

Now where did I put that mega horsepower single to 3 phase converter :?:

Deker :|

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badnewswade
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Re: New battery technology claims 300Wh/kg

Postby badnewswade » Sun Jan 23, 2011 1:51 pm

Main problem I see with advanced batteries isn't that they need to get that much better, but that they need to get cheaper. Hopefully economies of scale will kick in when they start mass producing the Volt next year.
34 Watt Hours per mile, or > 700 MPG. What, me, smug?

guymark
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Re: New battery technology claims 300Wh/kg

Postby guymark » Fri Apr 15, 2011 11:24 pm

Deker wrote:Hmm, just done a quicky calc.

6 minute charge at 380v at 100 amps only = 3,800 watts.

The charger must be MASSIVE.

Gives one the feeling that a 235v 13 amp household plug wouldn't do much (In 6 mins) :shock:

Now where did I put that mega horsepower single to 3 phase converter :?:

Deker :|



If it is really charging at 100A @ 380v then the charger is going to pumping out 38KW - that is a charger with attitude.
If only maintained for 6 minutes though, it would give (ignoring inefficiency losses) around 3.8KWH worth of power.

Now if it was trying to charge a 100AH battery at 380v to the brim in 6 minutes, then we are looking at a battery charger which needs coupling up to a small substation as (again ignoring inefficiencies), 38 KWH worth of power flowing in 6 minutes, means it needs to be flowing at 380KW to charge the batteries up in 6 mins. (more like 500KVA if you DO factor in charger losses and battery losses).

Be great if there were batteries around which could (affordably) provide them sort of durability - as special "fuel stations" near susbstations could indeed offer that sort of power - though I dread the think of the cost of the connector :) 6 Minutes is as fast as filling a big tank from a slow fuel pump.

I reckon a 30 minute charge bay would be enough for many people. The shopping superstores ought to consider it. Park up, hook up, insert payment card and then wander off to do the shopping. Spend more than £50 (for example) and instead of collecting points, your recharge is free.

Sorry, I'm waffling - and on an old thread too :)

Mark


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