I recently learned about lithium titanate batteries, which have excellent low-temperature performance. They can work well in the range of 1.5v-2.8v to adapt to the wide voltage range of Prius NiMH batteries. More importantly, they have a charge and discharge life of tens of thousands of times, which basically exceeds the life of the engine. I am optimistic about Toshiba's 3ah or 10ah cells. 98 such cells form a battery pack connected in parallel to the two power main lines of the original battery. The 3ah is very small and can be placed in the spare tire position. Thanks to its low internal resistance, it can also improve performance. I am looking for a suitable protection board and balancing board, or only need one of them, or neither. Do you have any comments?
No no anything about the technology but I wouldn't think this stuff should be that hard in this day and age with all these different batteries and chemistries but apparently we're just not there yet I can't even get a battery reasonably sourced for a Chevy volt. And other batteries for the Prius like the round cell conversions and all this and that they're kind of stuff have never worked out the last like the original Panasonic EV battery so I know all the specs say gajillions of cycles it'll outlast the engine in the car and all that so far nobody's been able to do that by the time that happens it seems like all the cars that need that will be long gone or close to it there was a guy out of somewhere Sweden or somewhere that made a plug-in set up for the generation too there's a guy in Maryland with it Don't know how it works or much about it there's something online somewhere but you know those are one off type of things.
It's better than other lithium option for cold weather... But not even close to the superiority of Sodium-Ion in cold temps. What's more the product has already been designed, manufactured and certified: Toyota hybrid battery upgrade - NexPower Energy Only challenge at the moment is Chinese government hasn't set shipping/export rules for them in large quantities via shipping containers so they're still being flown into US rather than on ships which means more than $300 per unit for shipping. Hopefully that gets resolved in 2025 and the tariffs don't happen in an unmanageable way...
PS: Discussion of this type of Lithium does happen periodically going all the way back to 2008: Lithium-Titanate Battery Equipped Prius gets 77 mpg | PriusChat
Lithium-titanate battery - Wikipedia This is the introduction of lithium titanate battery on Wikipedia. Its special feature is its cycle life, which exceeds that of lithium iron phosphate or sodium ion batteries. But it also has disadvantages. The power reserve per unit weight is not as good as that of Ternary polymer lithium battery, and it is easy to produce gas that causes expansion when charging. The rules for battery transportation around the world may be unified. It must be placed in special containers, and refrigeration equipment may be required to maintain a constant temperature. There must be fire and explosion prevention measures, so its freight per box is higher than that of ordinary containers. If a container can be filled, it is a lot of batteries, and the overall freight is lower than air transportation.
I wonder how a Sodium battery would do as a 12V replacement. I have a 100Ah LFP with self-warming feature, but I am having a bit of a problem with it turning off in the cold and not starting the car (it hasn't been over 0 °F in the mornings for weeks). This is both for my Toyota Avalon Hybrid as well as for amateur radio purposes from the car itself (mobile station). LA just doesn't cut it in cold weather for deep cycle purposes, as the tend to freeze and crack when drained down low.
I just saw one on his sodiumhybrid.com website. It goes for $170 for a 36Ah battery. To match my 100Ah battery I'd need three. I wonder how well they do for deep cycling. I guess I should ask him.
I'm confused. Isn't SodiumHybrid.com a source directly from Jack? At any rate I did just get this nearly $400 100Ah 12V LFP battery and there's a chance I can make it work if I get a LFP charger so it will turn on the self-heating battery heater. If not I'll be looking for an alternative. I'd still like to keep learning about Na batteries so I can make a good choice in the future.
