Green Car Congress  
Go to GCC Discussions forum About GCC Contact  RSS Subscribe Twitter headlines

« New Mexico Utility Switches Diesel Fleet to B20 Biodiesel | Main | Hydrogenics Wraps Up Fuel Cell Forklift Trials »

Print this post

Fuji Heavy and Partners Working on Hybrid Storage with 100x Current Discharge/Recharge Speeds

31 October 2005

Nikkei. A research group including Fuji Heavy Industries Ltd. and Hitachi Maxell Ltd. is developing a storage cell for hybrid automobiles capable of recharging and discharging electricity at 100 times the current speeds.

The partners, which include Nagasaki University and the National Institute of Advanced Industrial Science and Technology, aim to commercialize the cell in three years.

The partners reportedly are working on nanomaterials for the electrodes that will have enhanced electrical conductivity, sources close to the matter said.

GM recently sold its stake in Fuji Heavy partly to Toyota, which now owns some 8.7% of the company.

October 31, 2005 in Batteries | Permalink | Comments (14) | TrackBack (0)

TrackBack

TrackBack URL for this entry:
http://www.typepad.com/services/trackback/6a00d8341c4fbe53ef00d83467e37853ef

Listed below are links to weblogs that reference Fuji Heavy and Partners Working on Hybrid Storage with 100x Current Discharge/Recharge Speeds :

Comments

I *think* the above release is describing the same work that is described in much more detail in at the following URL:
http://www.bccresearch.com/letters/bevtpromo/bev05oct.pdf
It's the 4th article down in the publication. (Which, BTW, seems to have a lot of other interesting news and developments on batteries. Worth bookmarking.)

The application of nanothecnology to rechargeable batteries construction seems to vastly increase their quick charge and discharge capabilities. Toshiba claims 60 times and Fuji + partners claim 100 times.

Those new batteries will eventually translate into practical EV and PHEV with very quick recharge (6 minutes)possibilities or in about the same time currently required to fill up with gas,

Assuming that recharge time can be increased 60 times or in 6 minutes instead of 6 hours for 80% battery recharge or discharge. This would require the use of 220 Volts at 1000 Amps to transfer 18.33 KWh in/out of the battery pack (in 6 minutes).

Note: 18.33 KWh is required to drive a Prius II about 75 miles in EV mode only. A 36 KWh battery pack would be required to drive 150 miles etc. A lighter vehicle may do better. A plug-in hybrid may still be more practical for longer trips (300 + miles)

Handling 1000 Amps is not something we normally do at home or at the local gas or charge station. The current required may be reduced by half (to 500 Amps) by doubling the voltage from 220 Volts to 440 Volts. This would still required very robust chargers and connectors. Tripling the battery pack voltage to 660 Volts would further reduce the current required to 333 Amps and that may be the most practical compromise to recharge 18.3 KWh in 6 minutes.

Since 660 Volts or 440 Volts (at current level of 1000, 500 or 333 Amps) is not normally available in North American homes, quick recharges would be restricted to specially equipped recharge stations.

Alternatively, multiplying the recharge time 10 times (from 6 to 60 minutes) would reduce the current required from 1000 Amps to 100 Amps @ 220 Volts to transfer 18.3 KWh into the discharged battery pack. This would require a robust charger but could be done home during low consumption night hours if your home is equipped with a 200 or preferably 400 Amps basic system.

For all homes equipped with 100 Amps/220 Volts basic system, the quickest domestic recharge time would be in the order of 3 hours.

Frankly, this is premature.  Battery costs are going to make the plug-in hybrid a reality long before the pure EV is economical.  Substituting for 80% of gasoline is much easier than 100%, but it would only require an electric range of 30 miles or so.  30 miles at 262 Wh/mile (values from the Prius+) takes a mere 7.86 kWh; you could supply that much overnight with a standard 16-gauge extension cord.

I agree with Eng-Poet that practical PHEVs will probably be around before practical pure EVs. However, even PHEVs would benefit from quick battery recharge capabilities to extend the electric mode range and further reduce OIL consumption.

You could go 30 x 2 = 60 miles daily with a quick charge for the return trip. Alternatively, a quick charge for the return trip could reduce total battery requirement by 50%. Considering the high price for batteries, a 50% reduction in battery size and weight would be a major economic advantage.

Why lug around 500 Kg of batteries at about $25+/Kg if 250 Kg will do.

Do you expect 100 million motorists to be able to grab a "quick charge" on the way home from work?

That's obviously not going to happen; even 10 million vehicles grabbing a 5 kWh charge over an hour would need 50 GIGAWATTS of peaking capacity.  What you can do is offer charging at work, and use the cars as DSM all day.  Maybe you get a full charge, maybe you don't; the utility gets to run its plants flat out.  The same 7.86 kWh/day goes over a 16-gauge cord between 8 AM and 5 PM.

Thinking broadly here, but:

RC car enthusiascts rejoice. We now have potential for muchos power in a smaller pack.

But seriously, has anyone ever given a thought to EM produced from having so much power flow around them? Are we forgetting 13 KW is what flows through power lines before they get dropped and divided to 240 or 110V. Does anyone not see a potential flaw in long term safety here? Like never being able to have kids and loosing all your hair if you drive an electric car for a couple of years. Makes mobile phones look like teddy bears.

And Engineer-Posts's comment about the high power drain on power plants during peak charging is to be taken seriously. We use petrol stations to refuel our cars, hence distributed. Once "green" power becomes all the rage what kind of infrastructure upgrade will be required for power stations to provide so much power to each home? Does anyone recall the power problem in California by any chance?

Also, main transmission lines would have to be upgraded as well, because otherwise they will melt. And again, back to the previous point. What EM gets generated by a city charging its cars in peak hour?

The whole concept of electric cars is not feasable unless communities or homes have their own micro-power stations.

Cheap solar could help with this. If efficient and cheap nanoengineered solar panels were available on the market you could purchase 5-10KW peak worth and have then pump the energy into a battery or flywheel storage system and then pump the energy into your car when ever. Also, if the surface of the vehicle could generate electricty from solar then you could charge the battery that way as well. This may not be too far off but it's certainly plausible in the mid-term. At least it doens't involve hydrogen >:)

Cheers,

Tripp

Wow. If this works out into viable electric vehicles it is really grand.

I did some calculations. In Sweden we could cut our oil consumption by 50 % if we converted into only electric cars. This would require an 50 % increase of electricity generation and would lead to a 14 % reduction in primary energy use.

Sweden has 9 million inhabitants. We could build three new nuclear reactors (1600 MW each) to supply all the new electricity needed, for a total cost of 9 billion euros.

Cheap!

Sorry, that should be 25 % increase in electricity generation, not 50 %.

Adrian, I'll be as nice about this as I can while being both explicit and brief:

You have no idea what you are talking about.

Starvid I fully agre with you that we should NOT exagerate the electric power required to drive our car an average of about 40 miles a day (about 10 Kwh per car per day)

Our 'all electric homes' use and average of 50 KWh/day of clean hydro power. Another 10 KWh for the car would mean an increase of 20%. All the extra power required could be available with 5 years with the addition of wind mills and/or hydro plants and that's exactly what is being done.

Alternatively, electricity consumption could be reduced by 5 Kwh/home/day with the application of various well known energy conservation methods and that's is also what is being done.

Finally, only about 5 KWh/day/PHEV car of new CLEAN energy may be required and that is NOT a problem at all. Wind mills can do that in most countries.

The SUN and the WIND are there and will be there for a very long time. They are both a huge source of CLEAN energy. Let's use them to produce the CLEAN energy required for our homes and vehicles and stop burning fossil fuel.

To Engineer-Peot.

Please enlighten me on everything I have said you believe is wrong. Don't spare the details.

Oh, you mean everything?  Fine:

  1. has anyone ever given a thought to EM produced from having so much power flow around them?

    Without upgrading the transmission lines, you wouldn't have any increase in peak EM.  There is no confirmed link between EM and illness either, so you're just fear-mongering


  2. Are we forgetting 13 KW is what flows through power lines before they get dropped and divided to 240 or 110V.

    That would be kilovolts (kV), not kilowatts (kW).


  3. Does anyone not see a potential flaw in long term safety here? Like never being able to have kids and loosing all your hair if you drive an electric car for a couple of years.

    I suspect that the fact that thousands of people have driven electric cars and ridden other electric transport (diesel-electric trains, subways) for many decades and these problems have never appeared doesn't cause you to doubt your position.


  4. main transmission lines would have to be upgraded as well, because otherwise they will melt.

    No they won't, because nobody will be trying to move all that energy at once.  What part of "obviously not going to happen" don't you understand?


All in all, you're plagued by misconceptions and fail to recognize and correct them through critical thinking.

i am looking for motor SPEED CONTROL AS FOLLOWS :

DC-DC CONVERTER B\K

1: 6DI15S - 050
6X15A 500 VOLT MTR

2: TRI 3006 C4584IC
4 FEET COLOR YELLOW ..

LOOKING FORWARD TO HEARING FROM YOU SOON .

WITH REGATRDS
HUSSEIN

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Working...
Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.

Working...

Post a comment

Green Car Congress © 2014 BioAge Group, LLC. All Rights Reserved. | Home | BioAge Group