Lead Acid Battery Upgraded to Lithium Iron Phosphate
Sequent Microsystems Multichemistry Watchdog HAT Adds UPS Support for Raspberry Pi
FFS, how many times does it have to be said? DO NOT use Lithium Ion for static installations. They don't need the energy density and we don't need the fire risk.
LiFePO₄ is cheaper, inherently less risky and available in grid scale quantity.
Sodium is likely to be even better in some respect.
https://www.nature.com/articles/s41598-025-25972-8
#ClimateCrisis #Energy #BatteryStorage #LithiumIon #LithiumIronPhosphate #GridScaleStorage
Fires at lithium-ion battery storage facilities pose emerging environmental risks that remain largely undocumented under real-world conditions. Following a major fire at the world’s largest Battery Energy Storage System (BESS) in Moss Landing, California, we conducted rapid, high-resolution soil surveys to quantify metal fallout in adjacent estuarine wetlands. Field-portable X-ray fluorescence (FpXRF), validated by SEM/EDS, laboratory XRF, and ICP-MS, revealed a significant but transient surface enrichment of nickel (Ni), manganese (Mn), and cobalt (Co). This enrichment had Ni: Co mass ratios near 2:1 serving as a geochemical fingerprint of NMC-type cathode materials. The metals were confined to a shallow surface layer (< 5 mm). Surface concentrations declined rapidly following precipitation and tidal inundation. The fallout’s thin, transient and patchy distribution would have eluded standard coring methods but was detected through spatially intensive FpXRF sampling, highlighting the importance of rapid detection and the mobilization of metals into wetland ecosystems. These findings underscore the need for adaptive environmental monitoring following battery fires and raise critical considerations for ecosystem protection and infrastructure as energy storage systems expand.
The Dark Side of Electric Vehicles: A Hidden Pollution Problem
https://scitechdaily.com/the-dark-side-of-electric-vehicles-a-hidden-pollution-problem/
#electricvehicles #LithiumIronPhosphate #emissions #pollution
For instance you can see from the test record chart that this 3300mAh #LithiumIronPhosphate cell takes about 3 hours to charge at just under 1C, not the 1 hour you'd get from just dimensional analysis. You can't estimate charge time by dimensional analysis because of the constant voltage phase. #electricalengineering
I wish I could say this is the first time I've seen this: The BQ25629 is listed as Lithium-Ion Polymer *AND* #LiFePo4 charger IC. Except the datasheet makes no mention of lithium iron phosphate and the default battery voltage regulation is 4.2, high enough to damage a #LithiumIronPhosphate battery.
So you'd need to pin-strap the IC to disable charging until your application processor boots and sets the voltage to 3.6V. What a pain.
CATL, the Chinese battery giant and a major supplier to Tesla, has unveiled its latest product that aims to solve electric vehicles’ charging and range limitations.
The battery, dubbed #Shenxing or “god-like movement,” is able to refuel up to 400 kilometers (250 miles) of range in 10 minutes, Gao Han, chief technology officer of CATL’s e-car division, said at a launch briefing.
That means vehicles powered by Shenxing can drive from New York to Boston (about 215 miles) after just 10 minutes of fast charging.
Mass production of the battery is expected to be underway by the end of 2023, with shipping to begin in 2024.
Shenxing claims to be “the world’s first 4C superfast charging LFP battery. “LFP stands for lithium iron phosphate, a type of battery chemistry that Tesla widely adapted in 2021 for its shorter-range cars in place of nickel-cobalt-aluminum.
China is a big proponent of LFP, a technology spearheaded by its renewable energy darling CATL, which topped the global EV battery market with a 35% share in Q1, according to research firm SNE.
This type of battery is known for its cheap prices and chemical stability, though it has a lower energy density than other battery chemistries, which is a drag on EVs’ range.
CATL’s extraordinary growth has been buoyed by an EV boom in China over the last few years. But the EV industry is decelerating as government subsidies shrink and consumption contracts amid a post-COVID economic downturn.
Meanwhile, the Fujian-based battery manufacturers face heated competition from BYD, the Chinese EV giant that also makes its own battery. In Q1, BYD trailed CATL in second place with a 16.2% share of the global EV battery market
#LithiumIronPhosphate
https://techcrunch.com/2023/08/16/tesla-supplier-catl-unveils-battery-that-can-add-up-to-400km-of-range-in-10-minutes/
So those 5kWh server rack batteries should be at around the €700 mark, right? Well, no - those Pylontech units have been stubbornly at €1,500 for at least a year. At that price, ROI is still off in the 20 year range for a grid-connected home battery storage system, so I'm not going to jump on that just yet. When it comes down to €700, sure.
#batterystorage #LithiumIronPhosphate #Pylontech #solarpower #cleanenergy
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Hackaday
LinuxGizmos.com
Matthew Malthouse
Blue DeviL // SCT
Harvey Sandstrom
Chuck Darwin
Marcus Jenkins