Ditch the Batteries: Off-Grid Compressed Air Energy Storage (2018)

Re:Ditch the Batteries: Off-Grid Compressed Air Energy Stora... by Schroedingersat on Tuesday December 27, 2022 @10:41PM (#34157282)

> vehicle batteries are limited by charge/discharge cycles, not age.

LFP batteries from the last few years are not limited by cycles. If you're charging every few days to weekly, it would take 50 years to hit the 3000-5000 cycle limits. Thermal degradation will happen a lot faster.

[ Parent | on HN ]

Re:Ditch the Batteries: Off-Grid Compressed Air Energy Stora... by Atheros on Sunday January 01, 2023 @02:24PM (#34209781)

Is the amount of thermal degradation a function of use? Or a function of environment (like leaving the car outside in the cold)?

[ Parent | on HN ]

Re:Ditch the Batteries: Off-Grid Compressed Air Energy Stora... by Schroedingersat on Tuesday January 03, 2023 @01:04AM (#34228277)

Just a name for the effects of temperature and time. Heavy use contributes, but is mostly accounted for under the 'cycle count at high charge/discharge rate' heading.

It's very hard to wear a new LFP battery with a controller that keeps it in the 20-80% range out now unless you cycle it several times a day or use it in harsh conditions.

We'll probably start seeing manufacturers cost cut and increase cycle depth or decrease cooling.

[ Parent | on HN ]