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Forum Index : Other Stuff : Graphite graphene backshed batteries
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| BenandAmber Guru  Joined: 16/02/2019 Location: United StatesPosts: 961 |
I have been researching and experimenting with Graphene and graphite A believe a high energy density diy battery is possible It may be possible to print or spray the active materials onto large rolls The rolls could be made to fit in a five gallon bucket Each bucket would be a single cell with a large amp hour rating but low voltage These bucket cells could be series or parallel connected for any voltage or any amp hour rating High grade home made Graphene and graphite can be made and doped fairly easily Thay have higher energy density then lead acid and a very high cycle life There are examples of paper batterys and non-toxic batteries with simple electrolytes You can get started being amazed with stuff you already have in your kitchen like microwave and blender Graphene can be made out of old carrots Apple banana peels almost anything Some are better than others and some will be naturally doped My goal is a diy battery made from easily obtained or easily made cheap and printable or sprayed ingredients These ingredients printed or sprayed on a roll to be put in a cheap or free 5 gallon bucket Robert Smith on youtube has hours of videos on subject and more He is incredibly entertaining and is to his field like you guys are to yours He is truly what I call a great I never thought to post about it here I was texting a good friend telling him what I was into and it got me thinking Some of the world's greatest minds are here on this site Thay are truly humble generous and wise Thay shere ideals and work together Thay are not motivated by financial gain or Pride Thay Answer to No One But theirselves Thay have no pressure to use inferior components or rush through They're free to unlock there potential Thay can think in untraditional ways These I think are a few of the reasons you guy have had so much success Imitation is the greatest from of flattery I fill this is the missing link to all that is done on this site I hope you guys consider watching a few videos by Robet Smith or others about graphene caps and batteries Thanks for your time and have a blessed be warned i am good parrot but Dumber than a box of rocks |
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| Davo99 Guru Joined: 03/06/2019 Location: AustraliaPosts: 1578 |
When you say Low Voltage, How Low and what sort of Ah do you think a bucket size cell would have? |
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Clockmanfr Guru Joined: 23/10/2015 Location: FrancePosts: 429 |
Yes, I have been working on and looking at homemade batteries. Something I have been considering to do as a 'How to make a 2v 60kg PLANTE battery' Book. For the time being the most cost effective solution for power output and material use is the humble PLANTE type lead acid, where both plates of the cell are lead sheet and the immersed medium is sulphuric acid mix, a 15 to 1, where 1 is a 80% sulphuric. Several things have made this PLANTE cell possible. 1. Polypropylene woven material can be used as a sock separator on each lead sheet. 2. Polypropylene containers made to a particular size can be easily commercially obtained. So the Finished PLANTE 2v cell can be up to say 60kg in weight, be dismantlable, the acid internally can be minimal as the lead plates with socks can be really tight inside its container. Disadvantages …. PLANTE batteries are a pain to set the internal oxides as on charging they need up to 25 charge and discharges over a fairly long time to coat the plate with the Oxide that defines the Anode and Cathode. I have done a couple of cells and each time I have got the Anode and Cathode the wrong way round, typical!. In real life Expect only 1/3rd of the AH for a PLANTE battery against a commercial battery of the same weight. https://docs.exideindustries.com/pdf/industrial-batteries/Plante-Range.pdf One thing about the PLANTE battery each time the cell is discharged and then charged the battery gets better and better AH. And life of a Plante battery is incredibly long. Graphene battery is interesting and I have watched its development, but at present there are just to many variables. But I will keep tinkering as I believe that graphene cells may indeed be usefull and can be self built in the future. Everything is possible, just give me time. 3 HughP's 3.7m Wind T's (14 years). 5kW PV on 3 Trackers, (10 yrs). 21kW PV AC coupled SH GTI's. OzInverter created Grid. 1300ah 48v. |
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| BenandAmber Guru Joined: 16/02/2019 Location: United StatesPosts: 961 |
As far as graphene batteries go your electro-light determines your cell voltage There are many good graphine material already known and tested like sugarcane vegetable oil Coal many others High surface area conductivity what you dope it with and electrolyte determines the capacity I was searching for best material to make graphite out of but I am now past that stage now Once you get you're graphene figured out you can add capacity to the cell by choosing electrolytes that hold a charge Graphene battery is by far cheaper then lead or any other if you make your own materials which is very easy to do You can make a truckload of graphite for cheap or free A sealed barrel with hole in bottom put in a larger barrel with stove pipe fitted to lid You can make graphene with a autoclave you can make one cheaply if you cant have a fire outside Space in between two barrels are filled with scrap wood The center Barrel is filled with whatever you want to turn into your carbon or graphite whatever you want to call it The center Barrel has a hole in the bottom this lets the wood gas come out and burn in between the barrels along with the scrap wood you loaded in there makes for a clean burn very efficient Running steam through it activates it If you make your graphite out of sugarcane it will naturally be doped If a free waste product is not one that is naturally doped you can add egg whites or many other things to dope it after you have your doped carbon u can activate it by running steam through it you can activate it in your microwave you can dope it in your microwave you can do the whole process in your microwave for smaller amounts Your next step would be to grind it up a small as possible in something like a blender Sift it regrind what doesn't go through sift After that you need a slow speed mixer Easily made with electric motor and a wire if you don't already own one You will also need marbles or still bearings or something similar You put you sifted carbon graphite what ever you wish to call it in you mixer along with water This sheers the layers off instead of busting them The difference betweens graphene and graphite is It is graphene when it is sheared off and really thin The whole process can be done in small batches in your kitchen From start to finished test cell Regular white Elmer's Glue school glue whatever you want to call it Use under10% ratio mixed with water and you're graphene thus makes a paint Aluminum foil makes good current collectors You can also cut out thicker metal for this The key is to make it small and the same size every time I would suggest a centimeter square for your active material in the center of the two plates you will be very surprised at how much energy you will get out of that little tiny piece of paper You can also have two little squares active material with a piece of tissue paper in between for a separator There is countless ways to do it watch a few videos and pick one Kraft paper whatever you have on hand gets painted with you're graphene paint and maybe dust dry on top of paint front and back You put your tinfoil collectors one on each side of the painted paper after dripping enough electrolyte to thoroughly wet the cell through Have something slightly heavy to sit on top of your cell to compress it and hold it together you hook your alligator clips to the tin foil make sure they don't touch I usually leave foil hanging on opposite sides Charge your cell after charged discharge it and note the energy density while discharging you can use carrots onions seaweed tree leaves any waste product wood sticks out of your yard it will all make graphite and graphene the structure and quality differs between all of them It is possible to build a battery by spraying or printing you're graphene onto paper I thought about making lead acid cells If I was to go that route I would do a pasted red oxide plate and pasted yellow oxide plate Both red and yellow oxide are fairly easy obtained form recycling old batteries I think red oxide forms around 300 degrees and yellow around six or seven hundred degrees don't quote me on those If you don't mind cutting open old batteries and melting lead you can use the same containers for the new battery You can make a mold for a grided plate to paste your oxides on and reuse the separator socks I think it can be done indefinitely I forget the name of these batteries but if I remember correctly they are really good batteries that last just as long or longer than regular batteries I honestly think graphite batteries will be the best way to go It is a super capacitor and battery in one After your graphite testing is done then you start testing for the electrolyte that holds the most energy while giving your requirements The electrolyte will determine your cell voltage This type of battery can be more energy dense than current lithium or less than lead acid I do believe even if the least of these was chosen it still beats lead acid because of the life of the battery low cost and the simplicity of construction Boy that's a lot to write just look of Robert Smith on youtube if you are interested he also has video on red and yellow lead batters Monkey see monkey do surely you didn't think I came up with any of this lol This is the future of batteries God bless ya and have a bless day be warned i am good parrot but Dumber than a box of rocks |
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Bryan1 Guru Joined: 22/02/2006 Location: AustraliaPosts: 1344 |
Rather than invent a new cell take a look at old 4wd stating batteries just tip the acid out in a suitable container then add a saturated solution of baking soda. It will bubble for days so drain out the battery and put a new solution of baking soda in. It may take 4 goes to stop the bubbles but when the bubbles stop time to flesh the battery several times with fresh water. Then make up magnesium sulphate concentrated solution then put the battery on a solar panel I left my first conversion on 4 by 5 watt panel for a month. Now that battery serves as the fan power for the cooling on my listeroid. Got another donor battery to start and I'm thinking of getting 20 of these to convert and just see off the power off the batteries will power my welder. Just food for thought Cheers Bryan |
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