2 ms·

Isn't there a large gap between "no longer cost-effective for mobile applications" and "end of life"?

• ramesh31 4y ago
  >Isn't there a large gap between "no longer cost-effective for mobile applications" and "end of life"? Not for lithium batteries. They have a significant change in voltage (internal resistance) and charge/discharge curve that is unique to each individual cell, based on the specifics of it's lifetime usage. That makes any form of safety critical application impossible. You cannot build a pack around cells with unknown or variable properties. Sure they could be used for hobby projects or DIY stuff, but that's about it.
  • asah 4y ago
    there's no way to sample the behavior then build an algorithm around it?
  • secabeen 4y ago
    B2U storage solutions is doing this today: https://arstechnica.com/science/2023/02/the-big-reuse-25-mwh-of-ex-car-batteries-go-on-the-grid-in-california/ https://arstechnica.com/science/2023/02/the-big-reuse-25-mwh... 25MWh is pilot-project size, but they are working through the difficulties and building the tooling to enable re-use.