Batteries

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China completes world’s largest vanadium flow battery plant - Energy Storage (www.ess-news.com)
submitted 4 weeks ago by Hamartiogonic@sopuli.xyz to c/batteries@sh.itjust.works
1 comments fedilink
 
 

cross-posted from: https://lemmy.zip/post/43197679

Unlike lithium-ion batteries, vanadium flow batteries use electrolyte solutions containing vanadium ions to store and release energy. The technology offers a number of advantages for grid-scale storage: high safety (non-flammable), long cycle life (over 15 years), and the ability to decouple power and energy capacity, offering greater design flexibility.

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World-first Na-ion power bank has 10x more charging cycles than Li-ion | PCWorld (www.pcworld.com)
submitted 4 months ago by chaosCruiser@futurology.today to c/batteries@sh.itjust.works
6 comments fedilink
 
 

Crossposted from https://futurology.today/post/4036071

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Northvolt files for bankruptcy in Sweden (northvolt.com)
submitted 4 months ago by Hamartiogonic@sopuli.xyz to c/batteries@sh.itjust.works
0 comments fedilink
 
 

This is big news for the Skellefteå factory. They were still ramping up production.

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Yadea released first electric scooters with sodium-ion batteries, starting at 3,299 yuan (sopuli.xyz)
submitted 6 months ago* (last edited 6 months ago) by Hamartiogonic@sopuli.xyz to c/batteries@sh.itjust.works
3 comments fedilink
 
 

https://carnewschina.com/2025/01/08/yadea-released-first-electric-scooters-with-sodium-ion-battery-pack-in-china/

Seems like sodium ions batteries have left the lab and are already in production.

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'Online' LiFePO4 in DC UPS? (lemmy.world)
submitted 6 months ago by Omacitin@lemmy.world to c/batteries@sh.itjust.works
0 comments fedilink
 
 

I'm working on setting up a DC UPS for my home network closet (router, NAS, cameras, etc). Ideally for simplicity, I would have these connected in parallel:

  1. CV/CC power supply set to 3.3V/cell or ~70% SOC
  2. 8s LiFePO4 battery, 25.6V nominal
  3. Load (buck and boost converters to 5V, 12V, 48V)

The batteries I have in-hand are these: https://k2batterystore.com/collections/catalog/products/24v-11ah-lithium-iron-phosphate-battery

What I'm mainly concerned about is whether or not the batteries will properly maintain balance in this setup without a smart charger cycling them up to 100% SOC every so often. Does anyone have references or reading material on this subject?