Hey guys just found this, might be something to watch out for in the future. Maybe the next long range battery? Lasts longer than a li ion and charges a LOT faster.
https://www.pv-magazine.com/2021/04/29/g...-charging/

With electric mobility, cellphones and laptops consumption increasing it's just a matter of time and researchers will come with new solutions. I guess we stopped at lithium because it is already really good, but now maybe it isn't enough for this new era.

Unfortunately, the development is also hampered by the business side, once, then still the era of TFT monitors, one of BenQ's high-ranking officials stated completely openly at a press conference. Why should we launch newer technologies? We have them, but the development of the old ones has not yet paid off. From another point of view, and this is the greatest evil, today a lot of money is being spent on cheating already known technologies, making them cheaper and selling them at the same margin. I see it from the first person.

Yes, it's always business that powers development. In the particular case of batteries and due to the automotive industry, that has a huge scale worlwide, business opportunities will come on batteries technology. Even automakers are trying to get into that business since it has a great margin on the overall price of the product and the main feature of the product that is mileage, the Achilles heel of electric mobility.

I hope they get the technology out soon and that it provides us with more powerful batteries that are LIGHTER in weight.

The current Graphene batteries are not any lighter than a comparable LiPo.

graphene lipos need to be more heavy as its something additional added. all lipos we use have some graphene insight, its just the question how much. a lipo named with graphene has -often- more graphene in it and is much more heavy compared to the same capacity cell with lower amount.

there is a gap between the need of rc community and the need of the rest of the industry, while battery performance is us main focus, battery safety has a much higher need for the industry. high performance cells does also give a higher risk in case of a fail, they are looking for "longterm use" only. they doesnt drain the batteries at all, while we like to draw 40amps on a good liion cell, they wont get close to it in their applications. they just add them in paralell to use the batteries with the same low current regardless the application. sadly these batteries arent made for us need, just partial usable for lr.

the article sounds fantastic :-) but isnt it just an usual graphene technology? there wasnt named anything else than todays lipos with much graphene inthere wont provide: 3times the cycles, higher charging/discharging rates doesnt sounds new to me, sounds like marketing for this university

I have 2 graphene versions from turnigy and still prefer my lightweight tattus. At the same price they deliver more current, are smaller and lighter. Maybe they last for less cycles but I doubt that.

there is no question if you drain the batteries as much as you can, graphene will provide better performance. an inefficiency build like a 5inch with 2700kv on 4s and "high pitch", flown in the upper throttle area, will show the benefits of graphene. an usual build 2450kv on 4s and moderate prop pitch will have a lowered performance/ worse handling form the same weight.

to compare the benefits of graphene and an usual battery with less graphene, the focus should be the weight not the capacity. i use some 1000mah graphene 4s lipos for 5inch racing, they are 150g. in comparison to a good 1300mah 4s lipo (with the same weight 150g). i have lower flighttime but a much better performance, drain them a lot and they wont die. i bought them together but i dont own any 1300mah anymore :-) my graphenes does still work, but they arent fresh and they doesnt provide near performance anymore...

i dont had any graphene from turnigy but i have a buddy used them. he always charged them on 7amps-5c. he always told he dont have time charging xD

maybe you should compare your 1500mah graphene with a 1800mah. your 1500mah lipos with a 1300mah graphene. just about weight/handling.

Maybe that's why I never felt the advantage, I rarely pass the 3.80V per cell when flying because I need to come home and store the batteries without extra charging.
I fly right on the 3 minutes mark so I'm OK with this process. I don't charge over 1C also. My builds are docile, 5040 props, 2206 and 2207 motors.
From what I take from you, I basically don't take advantage of any of the best points of graphene

Both my graphene and tattus are 1300mah 4S. I have tattus funfly, raceline v1 and v2 and the batteries are amazing, so light and so much power.

maybe worse a try just about the difference? on a hungry gemfan hulky 5055 / gemfan 5152 or something in this direction :-)

5040 sounds like good efficiency :-) the other way i would force is a 800mah graphene, get more nimbleness at the same power :-) probably only for 2min, better flightabilities for the cost of flighttime

I have the same prop but 5045, but I always equip the 5040 for the sake of flight time. I guess I can try the graphene with 5045 vs tattu 5040

Oh, my martian 215 can't handle 5.1 props, the 5 already go a hair from the alu standoffs.

5045 is still not that much :-) paired with high cam angle might compensate a high pitch :-)

I can see that your motors must land smoking
I started with something like 35° and now I'm about 20°, the 40's are near