was posted a few hours ago by CNA, a Singaporean public broadcast service. It's got under 9 minutes of content. Their description is "Mongolia has been flooded with cheap, end-of-life hybrid vehicles from Japan, whose batteries fail quickly in the country’s brutal climate and rugged terrain." Before COVID, I remember seeing videos about how Priuses were everywhere in Mongolia. It seems they apparently do have a end of life NiMH battery recycling and disposal problem there. If you want to skip to that, skip to ~3:38 or so. Sorry I'm not active here much any more. I've moved onto BEVs and my current job keeps me very busy. My dad still has my former 06 Prius. It is still on its original HV battery even though it's past the 20 year mark now.
“Heat is the enemy” of the NiMH batteries and Toyota engineering got “less bad” but failed the terminal seals. If the overpressure vent had been done right and a smarter BMS, NiMH cells have unlimited life with a little distilled water every 5-10 years. Opportunities lost. Bob Wilson