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[-] Colorcodedresistor@lemm.ee 28 points 1 year ago

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

💀

[-] nublug@lemmy.blahaj.zone 48 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 8 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.

[-] Rednax@lemmy.world 1 points 11 months ago

The article is to short to draw conclusions from. For example their concern could be with temperature or with charging speed when linking many modules together.

[-] LolcatXTREME@lemmy.world 9 points 1 year ago

It’s a starting point at least

[-] agent_flounder@lemmy.world 7 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.

this post was submitted on 02 Dec 2023
212 points (96.1% liked)

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