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[-] Colorcodedresistor@lemm.ee 53 points 1 year ago

the battery in question is only 1.5ah at 3 volts.

💀

[-] nublug 53 points 1 year ago

it's a prototype pouch format, what are you even comparing it to? lead acid 12v? you're just seeing kinda small numbers and thinking that sucks, aren't you?

you know you get whatever voltage and amps out of batteries you want by wiring the cells together in parallel and series, right? right???

the point of this is the cobalt free and fast charging, which are both good.

[-] ForgotAboutDre@lemmy.world 23 points 1 year ago

All large batteries are just smaller batteries wired in series for more voltage and parallel for more capacity. Both these numbers are reasonable and comparable to most battery tech.

[-] CanadaPlus@futurology.today 9 points 1 year ago

According to Yasuhiro Harada, principal researcher at the Nanomaterials Research Laboratory at Toshiba Research and Development Center, “To implement this technology for automotive use, 50 Ah or 100 Ah is needed, and we need to increase the capacity to achieve this goal. “

This sounds like it's still not comparable to existing Li-ion.

[-] agent_flounder@lemmy.world 12 points 1 year ago

And this is...what...bad?

This is obviously at a prototype stage.

They clearly state that this tech would need further improvements including significantly increased capacity. But that may only be a question of size as is the case with pretty much every other battery technology.

And they produce 3V max--so what? Lead acid cells' nominal voltage is 1.2V, lipo 3.7, Nickel is like 1.3V (I can't recall for sure). Want more voltage, wire cells in series, want more current and capacity, wire in parallel.

The battery tech has interesting, useful properties that offer some promise. I don't really see why you're shitting on it. They're not claiming this is some paradigm changing tech or anything.

Before condescendingly ask if I know anything about electronics or how my phone works, while I am admittedly weak on RF design, I have written drivers for accelerometers, gyros, magnetometers, UARTs, displays, GPS receivers, etc., I've done a little bit of work writing code for cameras, I've worked with ADCs, DACs, I have written code for PIC, AVR, ARM, RISC, etc. microcontrollers in C (also a bit of assembly and c++), and I have designed and sold a variety of circuit boards for hobby use using various microcontrollers, sensors, and other components.

I probably don't know how everything in my phone works but I probably have at least a working knowledge of 80-90% of it. I don't do electronics professionally but I've always enjoyed it. That's why, along with enjoying programming, I got my computer engineering degree back when 80386 and 68020 was the latest, greatest (lol) and why I still do electronics and robotics (the kids call it mechatronics now) as a hobby.

Anyway... I am curious to see if they're able to bring this new chemistry to the market in 5 years as they claim. It may not revolutionize anything but it could offer a nice alternative in a variety of applications.

[-] LolcatXTREME@lemmy.world 10 points 1 year ago

It’s a starting point at least

[-] JeffKerman1999@sopuli.xyz 10 points 1 year ago

Isn't titanium expensive? I would guess they'd try something like silicon or graphite that is way much abundant

[-] Pirky@lemmy.world 26 points 1 year ago* (last edited 1 year ago)

While it is relatively expensive compared to iron, we actually use 95% of all titanium mined for white paint since titanium dioxide is really white.

So if we're able to put almost all titanium production into white paint, I think we could take some of that capacity and put it towards batteries.

[-] ladicius@lemmy.world 5 points 1 year ago

It could be white batteries to make the most use of it ☝️

[-] JeffKerman1999@sopuli.xyz 5 points 1 year ago

Yeah a friend told me something like that but he forgot to compute how much energy is needed for silicon and how much for titanium. Like aluminium is one of the most used materials but it still is a massive use of energy to refine it from bauxite or what-you-have.

Don't know, I'd say the mainstream is trying to go grapheme and or silicon and these dudes are trying different stuff for the sake of doing it differently.

[-] FleetingTit@feddit.de 9 points 1 year ago

Metallic titanium is just really difficult to work with, apparently. It doesn't like being machined, requires very large presses to be cold or hot formed, and eats drill bits for breakfast. Basically stainless on steroids.

But titanium itself is one the most abundant minerals on earth.

this post was submitted on 02 Dec 2023
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