LiYFP - Extreme Temp Li Batt Source

[teal95]

I have a small setup in a shed that I use mainly for keeping a golf cart charged. It was my first setup and was a good learning tool. However the FLA batteries are showing their lack of attention and I'd like to replace them. I've seen a few posts about Li batts that are doped with Yterbium (How to spell?), mostly from Australia as they work fine not only in cold temps (down to -30?) but also high temps (up to 70c). Does anyone know of a source in the US?

I'm thinking this is a good opportunity for me to learn how to build my own battery. It's a 48v system.

 

[Steve_S]

LYFP which is LFP with Yttrium Doping has evolved. The most mature & well known manufacturer is Winston. They can handle -45C to 85C and have a higher C-Rate as well. Cells are available from 50AH to 1000AH YES, 1000 !

Energy Storage Type Serial Item No.: TSWB-LYP-Home page｜Thunder Sky Winston Battery-

The positive active material of water-based LYP battery is made of fluorine compound and rare earth, while the negative electrode active substance is made of nano-carbon fiber and artificial graphite. Therefore, it can keep its inherent molecular structure unchanged, lattice firm, impact...

en.winston-battery.com

US Vendor below. Be Advised, LYFP isn't cheap !

Thunder Sky Winston Battery | EVlithium

Thunder sky Winston battery is the best high power Lithium Iron Phosphate (LiFePO4) battery Cells. Evlithium is official partner of Thunder Sky Winston LiFePO4 ¡

www.evlithium.com