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  • MonsieurM
    replied
    Originally posted by prato_braun View Post
    Hi guys,

    as I am still hooked on the graphene battery I'm looking for methods how to produce your own graphite oxide. Unfortunately I can't find the following two papers. Maybe someone of you could help out.

    Preparation of Graphitic Oxide - Journal of the American Chemical Society (ACS Publications)

    ingentaconnect Simple Facile Route for the Preparation of Graphite Oxide and Gra...

    Cheers,

    Prato

    ps:just found another video on graphene in batteries Making better batteries with metal oxide & graphene composites - YouTube

    and another one^^ Nanotubes + ink + paper = instant battery - YouTube
    thought this resonated well with the above info :




    Power From The Air: Gizmo Captures Ambient Electromagnetic Energy To Drive Small Electronic Devices
    Before It's News

    Leave a comment:


  • IndianaBoys
    replied
    Originally posted by prato_braun View Post

    Thanks for the link but I can't open it without joining. Do you have another hoster e.g. script, dropbox or uploaded.to?

    I think I'll write the doctor who invented the light scribing method and ask him about the details of his method and if he has an idea how to apply his material to the graphene battery.

    Cheers,

    Prato
    Prato braun,

    I loaded that pdf up there as it was free. I checked the link after uploading and all was ok. It was only after reading your reply that I realized I was still signed in when I checked it. I logged out and now understand what you are saying. PM me an email address and I will ship you the pdf if you want.

    IndianaBoys

    Leave a comment:


  • Allwest
    replied
    Originally posted by prato_braun View Post
    Hi guys,

    as I am still hooked on the graphene battery I'm looking for methods how to produce your own graphite oxide. Unfortunately I can't find the following two papers. Maybe someone of you could help out.

    Preparation of Graphitic Oxide - Journal of the American Chemical Society (ACS Publications)

    ingentaconnect Simple Facile Route for the Preparation of Graphite Oxide and Gra...

    Cheers,

    Prato

    ps:just found another video on graphene in batteries Making better batteries with metal oxide & graphene composites - YouTube

    and another one^^ Nanotubes + ink + paper = instant battery - YouTube
    This looks pretty easy to make Nanotubes

    Synthesis of Carbon nanotube - YouTube

    Leave a comment:


  • prato_braun
    replied
    link not working

    [QUOTE=IndianaBoys;201584]
    Originally posted by prato_braun View Post
    Hi guys,

    as I am still hooked on the graphene battery I'm looking for methods how to produce your own graphite oxide. Unfortunately I can't find the following two papers. Maybe someone of you could help out.

    Preparation of Graphitic Oxide - Journal of the American Chemical Society (ACS Publications)

    Cheers,


    Prato

    Believe I found 1 of the files you were requesting:

    Preparation of Graphitic Oxide

    http://www.keepandshare.com/doc/view...d=4290837&da=y

    Also, not sure regarding your graphene battery questions. Maybe someone will know:

    1. How would you treat the graphene to make this battery?

    2. Would diluting in water and laser scribing still make sense in order to get a flexible film?

    IndianaBoys
    Thanks for the link but I can't open it without joining. Do you have another hoster e.g. script, dropbox or uploaded.to?

    I think I'll write the doctor who invented the light scribing method and ask him about the details of his method and if he has an idea how to apply his material to the graphene battery.

    Cheers,

    Prato

    Leave a comment:


  • IndianaBoys
    replied
    [QUOTE=prato_braun;201540]Hi guys,

    as I am still hooked on the graphene battery I'm looking for methods how to produce your own graphite oxide. Unfortunately I can't find the following two papers. Maybe someone of you could help out.

    Preparation of Graphitic Oxide - Journal of the American Chemical Society (ACS Publications)

    Cheers,


    Prato

    Believe I found 1 of the files you were requesting:

    Preparation of Graphitic Oxide

    http://www.keepandshare.com/doc/view...d=4290837&da=y

    Also, not sure regarding your graphene battery questions. Maybe someone will know:

    1. How would you treat the graphene to make this battery?

    2. Would diluting in water and laser scribing still make sense in order to get a flexible film?

    IndianaBoys

    Leave a comment:


  • prato_braun
    replied
    Originally posted by IndianaBoys View Post
    Prato Braun,

    This looks like the simplest method I have found so far:

    Simple, Cheap Way to Mass-Produce Graphene Nanosheets
    Simple, cheap way to mass-produce graphene nanosheets
    Thanks!

    As making a ball mill is very easy this option seems viable.
    How would you tread the graphene to make this battery?

    [1203.0161] Self-Charged Graphene Battery Harvests Electricity from Thermal Energy of the Environment

    Would diluting in water and laser scribing still make sense in order to get a flexible film?

    Cheers,

    Prato

    Leave a comment:


  • IndianaBoys
    replied
    Simple, Cheap Way to Mass-Produce Graphene Nanosheets

    Prato Braun,

    This looks like the simplest method I have found so far:

    Simple, Cheap Way to Mass-Produce Graphene Nanosheets
    Simple, cheap way to mass-produce graphene nanosheets

    Leave a comment:


  • prato_braun
    replied
    graphite oxide

    Hi guys,

    as I am still hooked on the graphene battery I'm looking for methods how to produce your own graphite oxide. Unfortunately I can't find the following two papers. Maybe someone of you could help out.

    Preparation of Graphitic Oxide - Journal of the American Chemical Society (ACS Publications)

    ingentaconnect Simple Facile Route for the Preparation of Graphite Oxide and Gra...

    Cheers,

    Prato

    ps:just found another video on graphene in batteries Making better batteries with metal oxide & graphene composites - YouTube

    and another one^^ Nanotubes + ink + paper = instant battery - YouTube
    Last edited by prato_braun; 07-13-2012, 10:11 PM.

    Leave a comment:


  • ibpointless2
    replied
    I have done the underwater experiment like Plengo did a few pages back and have gotten some interesting results. Completely putting a certain pressure crystal cell under water would not short out the electrodes like you might think. The cell works well underwater. The one thing that I find hard to understand is that the cell's main ingredient is salt substitute which should be dissolved when exposed to water, but its not dissolving at all. So not only is the cell working underwater but its type of salt is not dissolving in the water.

    Crystal Cell Works Under Water - YouTube

    Leave a comment:


  • NickZ
    replied
    It would certainly be nice to see John B make a come back to this thread. Maybe he'll find the time to join us again, I hope so.

    After seeing Slider's last video, I pulled out some my cells, that I have stashed away for those light outage moments. Although some of them are in various stages of oxidation, there is one in particular that is not oxidized at all. It is one of my capacitor can cells, one that has only activated carbon, a carbon rod, and is sealed on top with white glue. That cell is 3/4 inch by 1.5 inches, it has never seen a drop of water. It reads still having about 3/4 volt, and one or two mA, now months old, maybe even almost a year old. It would certainly light one of those penny oscillators, fairly brightly, but does not do much on my oscillators, just a slight lighting of the led. I just thought to mention this, for those wondering what happens to totally dry, no salt cells, after some months, or a year or so. Well, the answer is- Nothing happens. Of course if I add a few drops of water, it probably would show about 1 volt, 10mAs, or higher output. But, this is a dry no water cell, and will stay that way. A dozen or so of these cells will produce about 12 volts, but still only a couple of mAs.

    Here's a short video that I just made, showing my Exciter circuit working with NO battery connected, just the capacitive link between my stray house wiring AC. I also show the circuit running on just 0. 75v from a older Carbon/Al cell, which is showing a wireless output of several inches away from the Exciter coil.
    Video:
    Exciter circuit running on NO battery. - YouTube

    Leave a comment:


  • Allwest
    replied
    Originally posted by ibpointless2 View Post
    One of the more interesting things I've seen with my pressure cells is that when they're first made they can have up to 1.3 volts or more. The pressure cell will then go down in voltage over the next few days to around .400V. As soon as it reaches its low point, each cell is a little different, the cell will start to climb up to around 1.2 or 1.1 volts and stay there. What is interesting is that even when its at the .400volt range it can charge a capacitor up to 1.2 volts with no problem. I took one cell that was at .500 Volts and hooked it up to a capacitor that had been sitting for over day and it had a standing voltage of 70mV. I hook the cell up to the capacitor and by the next morning the capacitor had over 1.2 volts in it. The cell was able to double its voltage over night due to charging a capacitor. This is why i so strongly suggested everyone charge capacitors. These pressure cells seem to do great when given a short or a resistive load such as a capacitor. The pressure cells remind me of Townsend Brown work with petrovoltaics rocks. The grains of salt substitute are nothing more than tiny rocks that are tightly bound to each other.
    Interesting info, I like the idea of using cap's as storage, these cells produce around the clock

    How is the amps of these?

    Best of luck

    Leave a comment:


  • Sawt2
    replied
    Originally posted by Sawt2 View Post
    That is the stuff from harbor freight. I have not personally tried that but it does seem similar and inexpensive enough to try.
    I found an address for the guy that I bought the chemalloy from, I am going to try to contact him and see if he will tell me where to buy it from.
    I'll keep you posted once I know something
    Brian
    To all:
    I finally got a response from the gentleman I purchased the original Chemalloy from. He still has a little and is willing to sell it to me. the normal price is 29.50 per pound. If I order 10 lb I could make it available to any one in the lower 48 for 26.50 per lb (that includes priority mail shipping)I would like about 3 lbs. so if at least 7 others are interested and serious about it I could order it. One lb is about 14 rods, approx. 9" long and about 1/4 to 5/16 dia. with 1 small flat side. The cells that I made I just cut the rods in half, however I do believe you could cut them in thirds or quarters and still have a working cell. Well, that's it for tonight if you are interested let me know.
    Brian

    Leave a comment:


  • ibpointless2
    replied
    One of the more interesting things I've seen with my pressure cells is that when they're first made they can have up to 1.3 volts or more. The pressure cell will then go down in voltage over the next few days to around .400V. As soon as it reaches its low point, each cell is a little different, the cell will start to climb up to around 1.2 or 1.1 volts and stay there. What is interesting is that even when its at the .400volt range it can charge a capacitor up to 1.2 volts with no problem. I took one cell that was at .500 Volts and hooked it up to a capacitor that had been sitting for over day and it had a standing voltage of 70mV. I hook the cell up to the capacitor and by the next morning the capacitor had over 1.2 volts in it. The cell was able to double its voltage over night due to charging a capacitor. This is why i so strongly suggested everyone charge capacitors. These pressure cells seem to do great when given a short or a resistive load such as a capacitor. The pressure cells remind me of Townsend Brown work with petrovoltaics rocks. The grains of salt substitute are nothing more than tiny rocks that are tightly bound to each other.

    Leave a comment:


  • Slider2732
    replied
    I've signed up for Peter's Newsletter...so should be able to view some of the presentations I hope.
    Hmm, really huge crystal cells, puts me in mind of an empty whisky barrel or something. If I made one it would give 0.7V @2mA for a verrrrry long time

    Leave a comment:


  • ibpointless2
    replied
    "Many other incredible presentations including John Bedini's crystal batteries that were so big you can put a tripod under it and bbq a feast! 2 of them actually!"


    I wasn't able to go to the conference, did anyone here go? I would like to know more about the John's big cells.

    Leave a comment:

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