Solid state battery break through

[lentner3 346]

Anyone have any thoughts on the new Samsung solid state technology breakthrough?

[JatoTheRipper 95]

I've heard stories and read hundreds of headlines of "breakthough" battery technology in regard to EVs.  I'm still waiting.  Very patiently.  I have zero interest in ever driving an EV.

[lentner3 346]

49 minutes ago, JatoTheRipper said:

I've heard stories and read hundreds of headlines of "breakthough" battery technology in regard to EVs.  I'm still waiting.  Very patiently.  I have zero interest in ever driving an EV.

Same but the technology has recently been confirmed and it could have implications for RC applications.

[ad456 551]

I guess it depends on licence costs, yield rates etc. be interesting if/when it does come to fruition though. 

[alvinlwh 8001]

What difference is it from the Panasonic one?

https://www.wired.com/story/panasonic-powder-powered-silicone-ev-batteries/

 

[lentner3 346]

18 hours ago, alvinlwh said:

What difference is it from the Panasonic one?

https://www.wired.com/story/panasonic-powder-powered-silicone-ev-batteries/

 

Sounds very similar. Perhaps the same thing 

[Wooders28 5120]

On 8/16/2024 at 8:01 PM, lentner3 said:

Anyone have any thoughts on the new Samsung solid state technology breakthrough?

What's the discharge rates like?

The ones in EV's are that great as understand it? (Certainly not the 100C we get in RC, probably as the risk/reward isn't that great?) 

[Jonathon Gillham 4715]

18 hours ago, Wooders28 said:

What's the discharge rates like?

The ones in EV's are that great as understand it? (Certainly not the 100C we get in RC, probably as the risk/reward isn't that great?) 

Is that because they have loads of MaH in an EV so you get decent power without high C ratings? Our Leaf is a laugh to drive, much faster 0 - 30 (thats kms, so 20mph?) than our 4age powered race car.

I don't see improved batteries making much difference for RC. The current tech works well -  can power crazy fast motors for a long enough time, so the only gains are in safety. I've only seen a couple of lipo fires in many years, but it would be nice if they were eliminated.

[Wooders28 5120]

2 hours ago, Jonathon Gillham said:

Is that because they have loads of MaH in an EV so you get decent power without high C ratings?

Exactly.

So something designed for an EV, with (presumably?) Safety being the main objective, but increasing 'range', this isn't quite pur goal, we're looking for light weight and power (although, light weight would increase range too, along with more efficient motor design, and aerodynamics), where safety is further down the list. 

One of the reasons i think we (RCers) don't us the vape type batteries etc, there's just not enough oomph.

 

[alvinlwh 8001]

48 minutes ago, Wooders28 said:

One of the reasons i think we (RCers) don't us the vape type batteries

I think you mean li-ion like 18650. Some vape devices actually uses lipo too.

[Wooders28 5120]

2 hours ago, alvinlwh said:

I think you mean li-ion like 18650. Some vape devices actually uses lipo too.

Urm, that's what is common in vapes, aye. I don't vape ,so it's only what I've seen charging in the canteen in work.

Seen a few try it on Facebook....(yeah, that place..🫣), and surprisingly, didn't perform too well.

[ad456 551]

A high drain IMR chemistry 18650 will do about 30a peak @4.2a, I have a few rated at that from my vaping days, the max I had was a 35a Samsung cell. There are other chemistries, ICR for example but generally they weren’t recommended for vaping as they can be more volatile. I’d rip most of the 30a from a battery when I was building coils myself and sometimes they would get warm but I never drained them to hot. 
A decent 2s2p li-ion pack can run a silver can fine enough but won’t really be that exciting, certainly not for anyone who has driven a lipo.

A 21700 cell would maybe be better for amp draw but is bigger and so a pack wouldn’t fit our typical battery space, plus the can for the round cells of 18650s etc just adds weight that’s no benefit, we don’t need the round shape generally (yes there are a few cars that do but that’s only a few) so there’s far more benefit from softpacks or hard case lipos like what we use. 
 

I can see in time that things like RC will benefit from the R&D that’s going into EV batteries when they need to lower the battery pack size and up the amps but personally I don’t see it being in the next 5 years if not 10. The thing I think they are more interested in at the moment is charge rates to make folk more interested in not having to stop every hundred odd miles for 15-60mins.