LFP Battery Chemistry

[cvollers]

Suddenly my feed is full of Milwaukee ads hawking battery powered tool and accessory cases. I have to admit, they are nice.

I just realized why…Father’s Day.

 

[sodamo]

Maybe a Slate special Fathers Day next year 🤙🤙🤙🤙

 

[Benjamin Nead]

Yeah I keep hearing that but past 12 years with Tesla shows that charging to 100% is not detrimental.

There's a SOC buffer built into the BMW and you really can't get to true 100% charge.

With the 7% overhead that is protected, my Mach E only charges to 93% when it says 100%.

Not worried about the battery lasting past the 8 yr / 150,000 mile warranty as I don't expect to keep the car past 3-4 years - hoping for solid state batteries in my second gen EV.

Whatever works. I buy cars that are typically 2 to 3 years old, with the original buyer actually leasing it. And I like to hang onto them for a very long time. You say your Tesla is 12 years old? A Model S?

 

[Benjamin Nead]

Sodium may be interesting, but I got burnt with the Aquion saltwater version, bankrupt about 30 days after I bought over $35k worth. Then they barely lasted 2 years. Love my LiFePo replacements.

The Aquion was a very unusual mostly water-based battery designed for grid storage, which is actually somewhat different from the sort of smaller format and more energy dense sodium ion cells that Chinese companies like CATL are building today. Before you mentioned it, I hadn't thought about Aquion for many years. Sorry you had such a bad experience with yours. Ouch! But. yeah, LFP is pretty much bedrock technology by now.

Another potentially promising battery from that same time period which failed somewhat spectacularly and quickly faded from public view was the Sakti3 solid state cells that were allegedly going to power Dyson vacuum cleaners someday.

 

[bartflossom]

I bought some Quantumscape when it was at a hundred dollars/share. Worst timing ever.