Next battery maybe Graphene ?

Aus-Kiwi · Guru

Next battery maybe Graphene ?

Plain Truth · Guru

Interesting material Graphene ,might get you next bullbar made out of it.

https://www.livescience.com/57432-stronger-than-steel-material.html

Craig1 · Guru

Ha ha, , that would put a Nudge in your Bar , PT

dorian · Guru

Here is a 100 kWh Al-Graphene battery stacked up against a Tesla 85 kWh Lithium-Ion battery

https://reneweconomy.com.au/australian-company-buys-50-stake-in-game-changing-graphene-battery-storage-technology-83796/

The specs are amazing. The range is 3500 km compared to 426 km for Tesla. It is 30% lighter, has 7.5x more stored energy, produces 15% more power, costs half as much, lasts twice as long (15 years versus 8 years), and the charging time is 15 minutes versus 4.5 hours.

Edit: Those numbers make no sense. Firstly, kWh is a measure of stored energy, not power. Therefore the range of a 100kWh battery would be 17.6% greater than an 85 kWh battery, all other things being equal. The range of 3500 km only makes sense if you take advantage of the graphene battery's 7.5x greater energy density by using graphene chemistry in the same package as the Tesla battery. But then you would be comparing a 638 kWh graphene battery against an 85 kWh Lithium Ion (7.5 x 85 = 637.5).

Charging a 100kWh battery in 15 minutes would require a 400 kW charging outlet. Is this feasible from a consumer standpoint?

-- Edited by dorian on Wednesday 19th of June 2019 10:38:23 AM

Tony Bev · Guru

There appear to be a lot of new breakthrough batteries. on the drawing board, in the laboratories, etc

What I look forward to, are the results of the European carmakers putting in (do not quote me on the exact figures), BILLION towards battery research

Can not find the article any more, but I understood that they are committed to make electric cars, and want their own, and better battery

T1 Terry · Guru

The fact the Graphene Battery article on the Renewecconomy site is dated 2016 and there doesn't seem to be much startling headlines since then, I think this was possibly an investment type infomercial aimed at the mum and dad investor market. Sadly there where and still are lots of these out there and very few see any return on their investment. Some may remember the "Silicon Battery" hype a yr or so back with a name representing the melting point of silicon. It wasn't a battery at all, just a heat storage idea that required steam turbines etc to harness the stored heat and turn it into electricity. I wonder how many did their money on that one
LTO is the new kid on the block as far as battery storage offering very long life and rapid charging, not suitable for EV house batteries because of the added weight/size compared to LFP/LYP technology, but as far as residential house batteries or grid stabilising batteries, way out in front of the Tesla technology

T1 Terry

Greystone · Senior Member

LWP Technologies is a small oil and gas company that is in financial trouble with no apparent income. The joint venture launched in 2016 involving graphene technology seems to be all but dissolved in disputes. https://www.abc.net.au/news/2017-06-13/lwp-shareholders-seek-answers-over-lost-millions/8610092

RoamerAllWaze · Member

Slightly off-topic but the future is here perhaps?
Www.safiery.com are pushing a 48 volt setup with a Denso alternator and Victron solar panels.
Now that looks interesting to me... particularly the hardware costs which are lower than 12 volts.

T1 Terry · Guru

:lol: How could adding an alternator and all that is involved be cheaper than using the alternator that is already there? The cost of quality solid state relays for that voltage is 3 times the cost for the same quality in 12v, those relays they show wouldn't last as long as the head on a beer in real life situations, Bruce (sorry, different forum) can vouch for that when he had a 48v system in his houseboat. It takes the same number of lithium cells or lead acid batteries to build the same watt hour capacity no matter what voltage the system is based on. E.G. 400Ah @ 12v is the same as 200Ah @ 24v is the same as 100Ah @ 48v. The battery management system is a lot more expensive though, so there can not be a cost saving.
Been there, done that for off grid house system, it is always more expensive to go 24v and even more expensive to go 48v. The only benefit for going 24v is a better range of high output inverters, 48v doesn't offer anything better. The only savings would be in quality solar regulators, half as many required for a large 48v system compared to a 24v system, but an RV couldn't sport that big a solar array that the savings would come into it.

T1 Terry

-- Edited by T1 Terry on Tuesday 25th of June 2019 11:44:31 AM