marce Posted January 11, 2019 Share Posted January 11, 2019 Are there readily available graphene batteries yet.... Link to comment
marce Posted January 11, 2019 Share Posted January 11, 2019 7 hours ago, the_doc735 said: yes Nope, the question was rhetorical. Those batteries are not graphene batteries. the_doc735 1 Link to comment
Popular Post marce Posted January 11, 2019 Popular Post Share Posted January 11, 2019 8 minutes ago, mansr said: Batteries don't supply a constant voltage. Most circuits require a constant supply voltage. Ergo, a regulator is required. I have been shot down many times for mentioning this... The voltage drop as they discharge is always forgotten, as well as noise. tmtomh, phosphorein and lucretius 3 Link to comment
marce Posted January 14, 2019 Share Posted January 14, 2019 On 1/13/2019 at 5:23 AM, the_doc735 said: https://hobbyking.com/en_us/graphene-1000mah-4s-65c-w-xt60.html Uh! ~ how so? They are lipo batteries. the_doc735 1 Link to comment
marce Posted January 14, 2019 Share Posted January 14, 2019 They are lipo batteries they are not graphene batteries, the graphens is probably mostly in the marketing. They are still working on graphene batteries, do a bit more research into it. the_doc735 and RickyV 1 1 Link to comment
marce Posted January 15, 2019 Share Posted January 15, 2019 17 hours ago, the_doc735 said: I disagree, I don't think it is just marketing. They wouldn't be able to sell them as containing graphene if they don't! They would be fined/prosecuted for false advertising! Anyway I'll write to the manufacturer and ask them about your allegation. Disagree all you like they are NOT graphene batteries, look at the current level of research regarding graphene, the main centre is at Manchester Uni.... Ralf11 1 Link to comment
marce Posted January 15, 2019 Share Posted January 15, 2019 16 hours ago, the_doc735 said: @mansr 🤔 In their composition they are NOT graphene batteries they are LIPO different technology all together, look how graphene batteries work. Ralf11 1 Link to comment
marce Posted January 15, 2019 Share Posted January 15, 2019 Your main source of information on graphene... https://www.graphene.manchester.ac.uk/ And a bit more https://www.azonano.com/article.aspx?ArticleID=4326 the_doc735 1 Link to comment
marce Posted January 15, 2019 Share Posted January 15, 2019 A prime example of how advertising can mislead (shock horror its an audio cable company). Van Den Hull advertise this:https://www.vandenhul.com/product/cnt-carbon-nano-tube/ These cables do not use Carbon Nonotubes (less than 3nm in diameter) but thin strands of carbon that are 15 microns (15,000nm)... The very cleverly refer to these thin carbon wires as "nano tubes" not "nanotubes" and thus don't fall foul of any standards but are twisting the truth to fool people... Ralf11 1 Link to comment
marce Posted January 15, 2019 Share Posted January 15, 2019 1 hour ago, PeterSt said: I had never heard of nono tubes. But I guess that the message is that these are notubes. well spotted, it should have read nano!!! Ralf11 and the_doc735 1 1 Link to comment
marce Posted January 15, 2019 Share Posted January 15, 2019 1 minute ago, the_doc735 said: Rob (HobbyKing Support Centre) Jan 14, 14:11 EST Hello DOC, It is not merely a marketing exercise. Our Graphene batteries most certainly do use graphene in their composition. Let me know if you need further assistance. Regards, Rob HobbyKing US Product Support Team Don't forget to follow us on Twitter and Facebook for discounts and promotions!http://www.facebook.com/HobbyKingwww.twitter.com/hobbykinglivehttps://www.youtube.com/user/HobbykingLive "Turnigy Graphene packs utilize carbon in the battery structure to form a single layer of graphene just 0.335nm thick, making that type of battery substrate the thinnest known to mankind. The graphene particles form a highly dense compound allowing electrons to flow with less resistance compared to traditional Lipoly battery technologies. The result is a battery capable of maintaining greater power output whilst remaining much cooler under load. Since heat and resistance are the natural enemy of batteries, Graphene chemistry has significantly reduced these problems and the result is an incredible boost in cycle life and performance." Why do you keep repeating this, they are Lipo batteries with the posibility of some graphene on either the anode or cathode to lower resitsance, they are NOT graphene batteries, why do you persist in this, why don't you go read up what is available, I have posted links that show graphene batteries are not there yet for commercial use and still being developed.... Please read up on the facts regarding graphene instead of being so ignorant and repeating the same stuff... If theye were graphene batteries they would not say they are LIPO!!!!! Ralf11 1 Link to comment
marce Posted January 15, 2019 Share Posted January 15, 2019 3 hours ago, Jud said: They've had cables with carbon conductors for a long long time. When I had a pair they didn't come in a pretty box, and I'm betting they were much much cheaper. Yes but the adverts that came out and the way the cable is described you would think it was a real carbon nanotube (correct spelling) cable, not a carbon cable... The difference is the space between nano and tube, if they used nanotube they would be liable for false advertising, with the space it just marketing pushing the limits. It was to illustrate the point regarding graphene, using it on an anode or cathode does not make it a graphene battery it makes it a LIPO battery that has utilises some graphene. Link to comment
marce Posted January 15, 2019 Share Posted January 15, 2019 46 minutes ago, the_doc735 said: Yes I agree that it is a lipo battery that utilities graphene, therefore it is a graphene battery with lipo technology, who cares about the nomenclature? Keep your hair on it's only a hobby mate! Relax! F.Y.I. I have read webpages RE: graphene, & batteries, they are very interesting. Nomenclature is important, being exact in these things is very important... It is NOT a graphene battery LIPO technology, it is a LIPO battery with some graphene used... I am curious into what he means by having Mansr and myself looked into, does he mean literally, maybe dissection to extract our withered, black, objective soulless hearts... the_doc735 1 Link to comment
marce Posted January 15, 2019 Share Posted January 15, 2019 1 hour ago, the_doc735 said: "Why am I so ignorant?" ....thanks for the insult. When you start resorting to insults it just shows your case is loosing its credibility! Let me re-phrase my original question just for you... Is a lipo battery with all the benefits of graphene technology (added), a superior power supply to SMPS? ********************************************** Rob (HobbyKing Support Centre) Jan 15, 04:55 EST Hello DOC, those links they (CA) provided are either 'out of date' or 'out of touch' with the most recent developments in this field, not everyone is currently aware of our latest achievements and breakthroughs. Regards, Rob HobbyKing US Product Support Team Don't forget to follow us on Twitter and Facebook for discounts and promotions!http://www.facebook.com/HobbyKing www.twitter.com/hobbykinglivehttps://www.youtube.com/user/HobbykingLive I have no idea what rob was talking about? Maybe he was looking to make sure that there is no libellous content that defames his business or something? I really don't know! e.g. their graphene batteries being just a marketing ploy when that is simply not the case. I have actually done some PCB's for graphene battery project, they do promise some interesting future technology, especially battery powered devices. It is new technology though and there are many hurdles to overcome, like all new technology, stability, lifetime, how to reliably manufacture the product, safety concerns etc. etc. But power deliver for any circuit can be achieved with a SMPS, a LPS or batteries. It is down to the implementation of the whole power delivery system, not just what feeds the front end. I know of noise cancelling headphones with two small SMPS's inside the earpiece along with the electronics (one for the supply, whether from the battery (inside) or the tether and one to charge the battery when external power is applied) no noise problems, careful design and layout, filtering and shielding. SMPS's bad press comes from their early days, they were noisy there were problems, but over the years understanding of the problems and how to solve them have been developed. Such is their importance that all the main SMPS IC manufacturers now have teams and application engineers that provide recommended layouts, application notes and backup. There is no excuse for a sub standard SMPS where money is no option and room for components. On of the main components is the inductor/transformer here size does matter, mainly how large a cable you can wind with. Often due to size constraints (mainly) and sometimes cost, this component is less than optimal. This does lead to design issues, one is heat, with the high dI/dt smaller cable leads to higher dc resistance, which leads to heat, which leads to more dc resistance, which... you get the point. Resistance also leads to voltage differential and so on. LPS have problems, so do batteries, there is no free ride in creating the optimal power delivery system... PCB 101, on multi voltage systems the first thing you do is look at simplifying layout in terms of power distribution, getting clean power to any device is the key to optimal operation. Libellous, they state they are LIPO batteries, how much plainer can it get. the_doc735 1 Link to comment
marce Posted January 15, 2019 Share Posted January 15, 2019 1 hour ago, the_doc735 said: Rob (HobbyKing Support Centre) Jan 15, 04:55 EST Hello DOC, those links they (CA) provided are either 'out of date' or 'out of touch' with the most recent developments in this field, not everyone is currently aware of our latest achievements and breakthroughs. Regards, Rob Just for the record the links were not provided by CA (AS) but by a member on their public forum. the_doc735 1 Link to comment
marce Posted January 16, 2019 Share Posted January 16, 2019 7 hours ago, the_doc735 said: Rich B. (HobbyKing Support Centre) Jan 15, 19:39 EST "Hello DocThe Turnigy Graphene series of batteries push the limits of battery technology by utilizing carbon in the structure of the cells. With the addition of graphene, the battery has improved attributes such as higher energy density, lower internal resistance, higher discharge rates, and a longer life cycle. Please let me know if I can be of any further assistance. Sincerely, Rich B. HobbyKing USA Product Specialist, New York.My goal is not only superior service but also to make sure you are 100% satisfied." .....what do CA members say? Reading a lot of their marketing I would say they use the same marketing writers as Synergistic Research do... A lot of prose and misleading content, such as the use of "nano tubes" instead of nanotubes... see my earlier post. Anyway not wasting my time on a thread that has turned into a running advert for RC batteries, its becoming a bit of a joke. So many really high tech firms (as Jud has mentioned and I know a couple more) that haven't got the technology spot on yet being beet by a company that makes RC batteries... If they were graphene batteries then it would be big news and they would be boasting that they were first. Read some of the RC forums on these batteries, its interesting. Of course some real technical detail where they use the carbon and graphene would help the matter, maybe I should report them to the relevant advertising standards, that would be interesting. Link to comment
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