Batteries for power storage

[Tero]

Cost and weight has been an issue. Certainly not lighter but cheaper:
According to Tesla's Q3 Update, the new battery chemistry of Lithium, Iron, and Phosphate (LiFePo) or LFP power pack would soon be applied for other Tesla vehicles. It would not be exclusive to Tesla China and the Model 3, as it is the new power packs that would replace the long-running usage of lithium.
https://www.techtimes.com/articles/2669 ... g-cars.htm

[Tero]

The main advantage seems to be lack of cobalt. You can burn it and then landfill the ashes.
https://en.wikipedia.org/wiki/Lithium_i ... te_battery

[Tero]

The cobalt and weight are the main issues with recycling.

Extracting the valuable materials from an EV battery is difficult and expensive. The recycling process typically involves shredding batteries, then breaking them down further with heat or chemicals at dedicated facilities. That part is relatively simple. The harder part is getting dead batteries to those facilities from wherever they met their demise. About 40 percent of the overall cost of recycling, according to one recent study, is transportation. EV battery packs are so massive they need to be shipped by truck (not airplane) in specially designed cases, often across vast distances, to reach centralized recycling facilities. Handling lithium-ion batteries is so demanding that dealerships have chosen to ship an entire 4,000-pound damaged vehicle to Oklahoma City, just so SNT can extract and repair or recycle the 1,000-pound battery inside.

There’s less risk of that for EV battery packs, Raudys says, in part because they are so big and hard to hide. A landfill won’t take them knowingly because of fire risk. A massive pack dumped somewhere is easier to trace back to an owner, or at least to its manufacturer. That will help keep most battery packs on the path to being recycled.

They’re still figuring out the plan for many of the batteries in this warehouse, but Spiers believes that in the end, they’ll be viewed as an opportunity, not waste.

https://www.wired.com/story/cars-going- ... T4mlR3Kak8

[Tero]

Vanadium flow batteries are already used across industries. We’re making it simple for consumers to adopt them as well. Designed for longer life and lower hazard, our batteries are designed to outperform lithium in every way.

https://invest.storen.tech/?utm_source= ... 86#problem

https://en.wikipedia.org/wiki/Vanadium_redox_battery

These are rather large but may have some advantages.

[macdoc]

Partner wants a home battery - by the time we get around to an EV car using the car for the same purpose will make more sense.
It's already a reality

Electric car batteries hold an average of 69.5 kilowatt hours (kWh) of energy, enough to provide back-up power to an average U.S. household for two days

At its core, bi-directional charging enables the two-way flow of energy between an electric vehicle's battery and an external supply or load. This allows your EV to store energy and share it with your home or even feed it back to the grid during periods of high demand

https://www.mitsubishi-motors.com.au/bl ... rging.html