I have the same model and I can't find anything about it, I would be cautious unless you can find solid evidence somewhere. It's a bit confusing on the website. On Amazon the one below specifically mentioned lithium iron phosphate in the description......

https://www.amazon.com/gp/product/B081GTVBFC/ref=ox_sc_saved_title_3?smid=ATVPDKIKX0DER&th=1