That BYD fast-charging is incredible. I agree, I think battery degradation must be meaningful. But I'm also of the opinion that it'll be a solved problem in 10 years. Thought: what if there were some sort of pre-battery that took the brunt of the charging load and then metered it into the main battery over time at a lower load. This pre-battery could be expendable (or at least easily changed) resulting in an ability to fast charge but with less wear/tear over time for a % of the total available battery.
Interesting idea, but I'm not sure how I see it working -- if we could have some kind of hypercapacitor that could hold tens of kWh, we'd probably use that instead of a li-ion battery in the first place 🤔
But you're right that I suspect the battery degradation will get better. Certain chemistries already do better, and if this type of very fast charging becomes more popular, then there will be more incentive to work on that problem.
I do see a concern with ultra-fast charging as there is a human limit to how thick and heavy the charging cable can be. The innovation should go towards charging robots instead. BYD hasn’t released the specs on this charger, but based on available data sheets of other 500A+ chargers, I predict the charging cable should heat up at 8 kW, or 1.6 kW per meter of cable at full load. Also, apart from publicity reasons I see no real need to do 1000A charging for 40s on a 9 min charging cycle that’s otherwise charging at 600A. That’s a 67% boost for 7.4% of the time, or 5% overall gain.
Great post today. And thanks for that amazing edit of Jensen a couple of days ago. He and Nvidia are truly inspiring in how smart and hard working and how well they keep executing!! And he has certainly leaped way past the old dog and pony shows that Steve Jobs put on.
Love the quote at the beginning. I'm reminded of this one from Charlie Munger:
"Life will have terrible blows in it, horrible blows, unfair blows. It doesn't matter. And some people recover and others don't.
And there I think the attitude of Epictetus is the best. He thought that every missed chance in life was an opportunity to behave well, every missed chance in life was an opportunity to learn something, and that your duty was not to be submerged in self-pity, but to utilize the terrible blow in constructive fashion. That is a very good idea."
That BYD fast-charging is incredible. I agree, I think battery degradation must be meaningful. But I'm also of the opinion that it'll be a solved problem in 10 years. Thought: what if there were some sort of pre-battery that took the brunt of the charging load and then metered it into the main battery over time at a lower load. This pre-battery could be expendable (or at least easily changed) resulting in an ability to fast charge but with less wear/tear over time for a % of the total available battery.
Interesting idea, but I'm not sure how I see it working -- if we could have some kind of hypercapacitor that could hold tens of kWh, we'd probably use that instead of a li-ion battery in the first place 🤔
But you're right that I suspect the battery degradation will get better. Certain chemistries already do better, and if this type of very fast charging becomes more popular, then there will be more incentive to work on that problem.
Cheers! 💚 🥃
I do see a concern with ultra-fast charging as there is a human limit to how thick and heavy the charging cable can be. The innovation should go towards charging robots instead. BYD hasn’t released the specs on this charger, but based on available data sheets of other 500A+ chargers, I predict the charging cable should heat up at 8 kW, or 1.6 kW per meter of cable at full load. Also, apart from publicity reasons I see no real need to do 1000A charging for 40s on a 9 min charging cycle that’s otherwise charging at 600A. That’s a 67% boost for 7.4% of the time, or 5% overall gain.
That's a great point -- can't imagine what these cables must be like, and they must require active cooling 🤔
Great post today. And thanks for that amazing edit of Jensen a couple of days ago. He and Nvidia are truly inspiring in how smart and hard working and how well they keep executing!! And he has certainly leaped way past the old dog and pony shows that Steve Jobs put on.
Thank you for reading, really glad you enjoyed it and I always appreciate the feedback and follow-up! 💚 🥃
Thank you, glad you liked it! I really appreciate the feedback! 💚 🥃
Love S3! Going to check it out
Let me know what you think! 💚 🥃
Love the quote at the beginning. I'm reminded of this one from Charlie Munger:
"Life will have terrible blows in it, horrible blows, unfair blows. It doesn't matter. And some people recover and others don't.
And there I think the attitude of Epictetus is the best. He thought that every missed chance in life was an opportunity to behave well, every missed chance in life was an opportunity to learn something, and that your duty was not to be submerged in self-pity, but to utilize the terrible blow in constructive fashion. That is a very good idea."
Great quote. And it hits even harder when you know about some of Munger's life challenges (his child, his eye, etc). 💚 🥃