Apparently you can just buy sodium 18650s now? - Page 1
Forum section: electronics / general

author: Whales
author_rank: Super Contributor
timestamp: November 20, 2023, 03:04:50 am
content: https://www.alibaba.com/product-detail/GEB-Hot-Sell-18650-Sodium-Ion_1600969337309.htmlNo datasheet listed, only some charging voltage specs :|Surely it's a scam and they're standard Li-ion or LiFe cells? Or is this now a thing?I don't think this is a reliable test to determine cell chemistry:

author: tszaboo
author_rank: Super Contributor
timestamp: November 22, 2023, 08:50:41 pm
content: Anyone tried these? Anyone have seen for example UN 38.1 reports? Well, I mean the equivalent for it because it's not lithium.

author: SiliconWizard
author_rank: Super Contributor
timestamp: November 22, 2023, 09:15:24 pm
content: No you can't.https://www.eevblog.com/forum/projects/sodium-ion-battery-evaluation

author: audiotubes
author_rank: Regular Contributor
timestamp: November 22, 2023, 09:20:36 pm
content: You have to take these sodium battery claims with a grain of salt

author: thm_w
author_rank: Super Contributor
timestamp: November 22, 2023, 10:44:50 pm
content: Quote from: SiliconWizard on November 22, 2023, 09:15:24 pmThat is just speculation, no actual proof that these are fake.

author: tszaboo
author_rank: Super Contributor
timestamp: November 23, 2023, 09:00:13 pm
content: Quote from: thm_w on November 22, 2023, 10:44:50 pmThat's what I think as well. They can totally be fake, but we know that there are companies making these, and that it should be cheaper than Lithium per Wh.

author: tom66
author_rank: Super Contributor
timestamp: November 23, 2023, 09:20:40 pm
content: The discharge curve looks quite dissimilar from lithium ion and the peak charging voltage does not line up with LFP. Whilst I would like to believe they are fake, it seems believable enough that they could be sodium ion, at least from some kind of limited-run or early prototype release.

author: KE5FX
author_rank: Super Contributor
timestamp: November 23, 2023, 10:01:25 pm
content: 1. Order some samples from a Chinese company with "Fire" in the brand name2. Wait for samples to catch fire, as promised3. Use spectrometer to determine whether you have a lithium fire or a sodium fire

author: SiliconWizard
author_rank: Super Contributor
timestamp: November 23, 2023, 10:06:39 pm
content: Quote from: KE5FX on November 23, 2023, 10:01:25 pm

author: SiliconWizard
author_rank: Super Contributor
timestamp: November 23, 2023, 10:12:10 pm
content: Or a variant:1. Order some random shit from Aliexpress.2. Assume it's genuine and matches the advertised specs.3. Make a YT video about it, looking midly entertaining but with no reasonable evidence of anything. Make stuff explod if possible, that's always a plus.4. Profit.

author: Whales
author_rank: Super Contributor
timestamp: November 23, 2023, 10:55:11 pm
content: We should send one toLes' Laband his Pi Spectrometer

author: tszaboo
author_rank: Super Contributor
timestamp: November 25, 2023, 01:18:58 pm
content: Quote from: tom66 on November 23, 2023, 09:20:40 pmThat's what I think as well. The issue I have is that they are not from the manufacturer, and based on the images shared, they are not labeled enough to deduce who is actually making them.I also don't see a reason, why companies with 10+ years profile in Alibaba would want to sell 10 batteries for 20 EUR, that are fake. But then again, we saw fake milk powder sold by that country.I've spent the last month safety testing LTO batteries. They come from an small obscure Chinese supplier, and these things can handle quite a bit of abuse. I would love to put my hand on some real Sodium batteries, and test them. If these are really safer than regular lithium.

author: alexwhittemore
author_rank: Frequent Contributor
timestamp: January 02, 2024, 10:41:25 pm
content: Perhaps they're factory rejects from EV manufacture? Some people in the comments here claim they've bought some as well. Of course they could be fake, but yeah, there wouldn't be much sense to faking it unless they're MORE expensive.

author: Fryguy
author_rank: Regular Contributor
timestamp: January 02, 2024, 11:38:40 pm
content: If they really make these batteries now , i'm absolutely sure they will be much cheaper to make - which doesn't mean we will pay less for them wherever we buy them . . .Lithium is kind of hard to get out of the earth - salt on the other hand is lying around everywhere and 70% of the planets surface is now batteryfluid !

author: SiliconWizard
author_rank: Super Contributor
timestamp: January 03, 2024, 12:05:03 am
content: One benefit of hard to extract resources is that it drastically reduces our possibilities of depleting them.