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remember the early days of super caps....

Iron

Have not used thin film battery but have used super cap's.

 

Iron

hello all from Edmonton, Alberta.

Iron

now, i will continue with the last day classes for energy harvesting...

thanks to the DIGI-KEY & DESIGN NEWS for giving this continuing education...goodnight!

once again thanks alot for the well informative presentation sir paul...

additional learning reagarding energy storage battery that are common today...excellent!

i am now in slide 17 of the presentation...

just starting form the start with slide 3...

good evening sir paul...just continue what i have left yesterday evening...

i am now on slide 2...

i am now about to download the materials for reference not only via discussion with sir paul, but for reference in the job spscifically...

good evening once again to all colleagues and our dearly lecturer, sir paul...

here i again to begin and finish with the remaining 2-days lectures via archived...

thanks again...

Very informative lecture...

Iron

Great to have access to the recorded sessions!

Iron

Missed the live lecture...

Iron

Taking the class offline...

Iron

Thank you Paul and Ann, very intresting and informative Presentation and topic.

Iron

Testing for I log in?

Iron

No uses for thin film battery

What about flexible battery technology?

thank you for a good info :)

Iron

thank you for a good info :)

Iron

God Bless Boston, God Bless the USA, United We Stand...

Iron

Better late than never, meeting ran over

Iron

Thanks again for a good show Paul :)

Iron

Alaskaman66 - Yes indeed it was an FCV.  We refueled at the Idemitsu fueling station in Chiba.  Was a forecourt dispenser similar to your gasoline pump, except they use a positive lock on the nozzle similar to the CNG nozzles.  Storage tank walls at the filling station are about 3 inch thick walled off at a distance.

Iron

Thank you. See you tomorrow paul. Bye.

Iron

OK everyone.  I must sign off now.

See you tomorrow.

Blogger

RMenon: Was that a fuel cell powered vehicle? How did it refuel?

OK.  Thanks again everyone.  time to visit my ENT!

Iron

Rode a Honda FCX from Tokyo to Chiba.  Was better and quiter than an ICE vehicle.

Iron

I think MTI exitted micro fuel cell production, but several Japanese companies including Toshiba and NTT are working on fuel cells for portable electronics. 

Iron

Thanks for the fuel cell tip.

Blogger

Hydrogen, aluminum, and zinc are some of the most popular fule cells out there today

Iron

"During electrolysis, water is separated into hydrogen and oxygen and the resulting energy is stored as a gas. When needed, the gas is fed into the fuel cell, which then serves as the power source."

Iron

http://www.scientificsonline.com/thames-kosmos-fuel-cell-car-experiment-kit.html

Iron

I know little about fuel cells.  There are hydrogen cells

that I've seen advertised, but no first had experience with.

Blogger

Was it the Chevette that had its engine at the rear and people had trouble keeping to their lanes while braking? or am I thinking of another car?  Same effect at a flywheel out of control!

 

Iron

These are considerably smaller scale than what we are working on but this has been very helpful

Iron

Paul, what about fuel cells? I saw a small methanol cell designed for portable electronic devices a while ago

I've always wondered that too.  Don't flywheel applications

suffer turning the equipment into a gyroscope.  And then of

course - if the car is turning, does that not remove energy from

the flywheel?

Blogger

Just came across this article on super-powered batteries:

 

http://www.bbc.co.uk/news/technology-22191650

Iron

Counter-rotating flywheels? Need to review my mechanics

Any ideas on what current commercially-deployed applications are using discrete super caps (as opposed to those massive arrays) like those in the 10s of F range?

Iron

hey, Alaskaman66, thanks for paraphrasing my question. :)

Iron

With flywheel energy storage, don't you turn your car into a gyroscope? Affect handling?

about the flywheel, i believe that it is great to store energy into a stationary system, but a moving car would become difficult to steer.  it is like holding a bicycle wheel standing on a lazy susan in a science experiment.

Iron

I once heard that helicopter store energy similar way. In emergency (when helicopter lost power and fall), it change the direction of rotor and make the rotor rotating by the falling energy. Then almost at ground, it change rotor angle so that it fly again by the rotating momentum of rotor.

Iron

F1 Formula race cars have a new energy capture system when braking, but I haven't seen an explanation of how it works.

It seems to be that a supercap can do many cycles yes.  The cycles of a supercap may be very short in time duration.  So even with many cycles it may be a fairly short lifetime?

 

Can supercaps blow up if connected reverse polarity like some electrolytics do?

Yes - a hybrid brake, flywheel is really the best for

automotive braking.  Other electrically operated equipment

can benefit from regenerative braking.

Blogger

Cost may be one of the only supercap / battery issues.

If cost is not a factor, then environment makes your

decision  -  ie volume, temperature, altitude, voltage

requirements.

Blogger

Don't fly-wheels have longer decay rates compared to supercaps?

Iron

Porche designed hybrid race car using fly-wheel to sore energy on brake

Iron

I don't know in particular the life expectancy of  a super cap.

Its about 5000 to 10K cycles...  However that depends on how

well you treat it environmentally.

 

Blogger

That navy app is very interesting!!

Blogger

@C Norgaard: fluid-power motors w/ new elastomeric accumulators are the best I'm aware of - somewhere around 80% I think

Iron

Regenerative braking is a large topic.  Depending

upon the mass being braked, and the brake rate,

and the motor gearing - one can get very high voltages.

Thus, there is no one answer to how it should be done.

In large systems, as a general rule, you can assume some

fairly sizable energy bursts during braking.

Blogger

I am trying to get an idea of the life expectancy of the supercap.  Slide 21 show % of Cr at a voltage level falling very low over 5500 hours.  Is that the expected life time of the supercap as a device or am I understanding it wrong.

Thanks very much Paul

Iron

Interesting energy harvesting app:  Navy is replacing steam catapults on carriers with electric motors.  The arresting cable is connected to a generator that charges some storage system.  This energy helps launch the next plane.  I have also seen huge room-sized megajoule capacitors, not necessarily associated with the carrier launch system.

Iron

Thanks Paul & Ann.  I guess we are on the last slide.  Audio might be available tomorrow. I will go to the ENT specialist tonight just to check if my ears have stopped functioning. Leave the lights on.

Iron

see you all tomorrow.

Iron

Thanks for the presentation.

 

What are the limitations (besides maybe cost) of supercaps preventing them from taking over batteries as storage devices?

Iron

inrush, shoot-through, ESR, temps ... I need to do a lot of research now into super caps ... good intro here .. sounds like there might be a lot of insertion opportunities if chosen and designed in properly

Re caps ... did anything ever happen with Eestor?

Iron

What is available, if anything, to absorb 100% of the energy from regenerative automobile braking?

Iron

Thanks Pauls for today's great presentation

Iron

Thank you. Another very interesting topic today.

Iron

Thanks Paul for the presentation.

Iron

glad you took the time to go over super caps ... sounds important and perhaps many good apps coming up

Many thanks, Paul. I've found your lectures very helpful...

Iron

Another great presentation, thanks alot

Iron

Great content today.  Thanks.

Iron

We have used a supercap but i dont recall the value

Iron

Can anyone share what type of instruments are involved in characterizing supcaps?

Iron

Have to leave early unfotunately, thanks for the presentation

Iron

Thanks mharkins.  I am keeping up pace with the slides without audio.  Cheers :-)

Iron

Digital_Angel - Let's just say supercaps are more tolerant of higher temperatures compared to lead-acid batteries.Batteries provide higher output at higher temperature but at the  risk of lowering their cycle life.

Iron

Once I made supercap explode *_*; The thin mark around the cap is designed so that when it explode the cap fly to the ceiling not to people

Iron

how important is temp range in super caps ... for example automotive or industrial temp ranges (won't say Mil)

Have used supercaps in fuel cells for bridging energy output.

Iron

We considered supercaps to smooth over power peak droops from Li-ion to prevent voltage cutoff. They are too large, too expensive for that to make sense. Better to just buy higher power Li-ion. 

Iron

I used to use supoer conductor for mgnetic leviation train long time ago

Iron

Ann.  I do not have audio today.  which slide are we on?

Iron

Not using yet Super capacitors but intending too in the future.

Iron

not in existing design, but would love to use it in future

Iron

Today's next audience question is
Is anyone in the listening audience already using supercapacitors in your designs?  If so what is the Farad value you have selected? What is your working voltage?

Blogger

No SuperCaps at this point.

Iron

Have been looking at the thin films for a couple years now. Haven't really needed them for any client projects yet, but I want to be ready if they need it.

Iron

No thin film batteries.

Iron

not using thin film batteries

No thin film batteries

 

Iron

Intel is one of several investors in Cymbet. TI are also an investor.

 

Iron

@wonohkim microchip is one example - look at their battery charging devices and app notes ... they bring up issues at least, some of which may require further research.  Think on the recent Boeing Lithium Ion issues ... (much higher power tho)

no, i am not using thin film

Iron

no thin film batteries at this point.

Iron

Today's next audience question is
Is anyone in the listening audience already using thin-film batteries?  And if so, in what types of applications?

Blogger

Digital Angel, where can I find the documents?

Iron

battery charging device app notes often go in to detail on device chemistry and charging issues, can be very helpful

Another important characteristic is battery performance at low temperatures

I'll complain to Jimmy Wales  (Wiki)  :(

Iron

He did say it was a wiki chart!  :)

Iron

As far as I know, all battery have memory effect. Is there any battery that has no or little memory effect?

Iron

Slide 6 well out of date. 18650 cells with LCO are well above 360 Wh/ ... some sampling > 700.  Poly in teardowns > 500 Wh/l aready. Chart says 360 is the top end.   :( 

 

Iron

Lithium ion going forward

Iron

Intermittant audio could be bandwidth issue if you're using a wireless connection.

Iron

Lithium Ion is 'hot' for sure (sorry Boeing)

I've used Alkaline, Lithium-Ion Nickle-Cads, and lead acid depending upon the application

Iron

Hello from Milwaukee

Iron

I have audio, but all the time is On and Off.

Iron

used to call it 'volumetric efficiency'

@wonohkim: Many users have trouble with the audio breaking when using IE. Please try using FF or Chrome. Also, you'll want to make sure you have the most recent version of your flash player. 

Today's first audience question is
What types of battery chemistry have you been considering?

Blogger

IE9 & sound (Flash 11,7,700,169) working perfectly here.  :)

in other words ... 'size matters' ???

I keep having to restart the audio

Iron

Yes, Firefox works.

Iron

You sould restart your explorer.

Iron

@Alaskaman66, thanks for the comeback, was AFK for a min.  Good application ... culvert monitoring!!

Is it problem of Microsoft or Digi-Key? Does anyone know why that (no audio) happens frequently?

Iron

using explorer, sound is working fine here.

Iron

Shouldn't we also consider weight?

Iron

audio doesn't work for explorer

Iron

last refresh was the charm

Iron

I got it by exiting the browser and restarting

Iron

Good tip mharkinss

 

Iron

Use chrome. Failed on IE but succeessed on Chrome

Iron

audio is playing for me I am using firefox

Iron

ok refreshed webpage a 3rd time and now I have audio

same audio issue here--oh wait; reloaded [again] & now works

Iron

audio is ok for me

Iron

I had to close the window, then restart it in explorer for the audio to start.

Iron

Pls refresh your browser and re-hit the play button

@MazianLab - I had to restart my browser after a refresh didn't help.

Iron

I switched to chrome and it works.

Iron

refreshed several times

Iron

I had a sound bar, got the blog talk intro and then it disappeared.

Anyone have sound?

Iron

hi, my sound didn't work.

Iron

@Deb; try refreshing your bowser

Iron

Mu audio doesn't work.

Iron

Hello from Germany

 

Iron

Howdy All from upstate ny

Iron

Oups! I meant HELLO all!

Iron

sound bar up...won't turn on

 

Iron

Hello from Longmont, CO

Iron

Good afternoon, al.

 

Hello from Toronto, Ontario.

Iron

Hi all - Audio is live!

Dr. Lund saw the need for this sensor when he worked for Dept of Transportation and Public Facilities one summer. They are used for culvert monitoring, some ofwhich have steam pipes installed so they can be thawed if they freexe up and block. Otherwise, you get overflow across the road, which makes a real mess. Saves the crews from having to do scheduled checks..

@Alaskaman66 ... what was the sensor application

Wonohkim: check out Digikey and Mouser. I've seen them listed in their catalogs.

Hello All

Its nice to attend these sessions to add a knowledge

By a lucky coincidence, yesterday's local Anchorage news featured a story about an electrical engineer at UAA, Dr. John Lund, who has developed a small remote sensor platform that uses harvested energy from two solar cells to operate. The sensor stores data, and when it has enough energy to do a burst transmission, it reports to its network. It is designed to last sixty years with no maintenaince. Check out the story at KTUU.com web site...

Also, good morning from Valdez

Back again in Montana

Platinum

hello again from Ottawa, ON.

Iron

Good Afternoon from Boston

Iron

Safe and dry (for the moment) in Chicago!

Iron

present! here, whatever

Iron

Made it today!

 

 

Iron

Was ist los? Sprechen wir nicht Englisch heute?

Iron

interj.heisann, hallo!, hvordan går det? (brukt som en uformell hilsen)

Iron

Hello from Panama City FL

Iron

Hello from Delray Beach FL

 

Iron

Be sure to follow @designnews and @DigiKeyCEC on Twitter for the latest class information. We encourage you to tweet about today's class using the hashtag #CEC.

Blogger

Please join our Digi-Key Continuing Education Center LinkedIn Group at http://linkd.in/yoNGeY

Blogger

The streaming audio player will appear on this web page when the show starts at 2pm eastern today. Note however that some companies block live audio streams. If when the show starts you don't hear any audio, try refreshing your browser.

Blogger

Be sure to click 'Today's Slide Deck' under Special Educational Materials above right to download the PowerPoint for today's session.

Blogger

Greetings from Raleigh, NC

Iron

Hello from Mexico, Chihuahua

Iron

Good morning from Brick, NJ

Iron

Good morning from Edmonton, AB

Iron

Good Morning, everyone

Iron

Good morning from Portland Oregon

Iron

Good morning from Mobile, AL

I hate IE. It kept frozen :(

Iron

Today's topic is about battery. I wonder any commercial super conductor is abailable.

Iron

Good Morning from GA

Iron

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