> 1000km 621 miles
540 nautical miles
49710 chains
BMW EV achieves 1000km in range using Dual-Chemistry batteries
11–20 of 92 posts
Re: BMW EV achieves 1000km in range using Dual-Chemistry batteries
#12This took a few reads to parse. There are two kinds of batteries: (1) a low-density LFP that has a great lifetime, (2) a simulated manganese using Nickel manganese cobalt that has a poor lifetime but great density. The former cycles frequently for short trips, and the latter recharges it during the long ones.
You need more LFP to carry the weight of the manganese battery though (increasing cost), and all the extra weight can affect driving dynamics. Maybe both the cost and weight increase are minimal but that’s what came to mind. It’s a great idea though.
EVs already have far better driving dynamics than gas cars... doesn't seem like what designers should be optimizing for, or what the average consumer will care most about.
Re: BMW EV achieves 1000km in range using Dual-Chemistry batteries
#13Re: BMW EV achieves 1000km in range using Dual-Chemistry batteries
#14Re: BMW EV achieves 1000km in range using Dual-Chemistry batteries
#15Re: BMW EV achieves 1000km in range using Dual-Chemistry batteries
#16BMW, build a charging network. That’s really the most consequential thing for drivers.
But don't forget to make it app only, because we don't want to build charging network which would be actually useful.
Re: BMW EV achieves 1000km in range using Dual-Chemistry batteries
#17This took a few reads to parse. There are two kinds of batteries: (1) a low-density LFP that has a great lifetime, (2) a simulated manganese using Nickel manganese cobalt that has a poor lifetime but great density. The former cycles frequently for short trips, and the latter recharges it during the long ones.
You need more LFP to carry the weight of the manganese battery though (increasing cost), and all the extra weight can affect driving dynamics. Maybe both the cost and weight increase are minimal but that’s what came to mind. It’s a great idea though.
Yes, to get more range you need more batteries, and those increase your weight meaning you need more batteries. But those increase your weight, so you need even more batteries. The tyranny of the rocket equation.
Not really specific to this dual-chemistry though, the same holds true for normal EVs and for gasoline-powered cars.
Re: BMW EV achieves 1000km in range using Dual-Chemistry batteries
#18This took a few reads to parse. There are two kinds of batteries: (1) a low-density LFP that has a great lifetime, (2) a simulated manganese using Nickel manganese cobalt that has a poor lifetime but great density. The former cycles frequently for short trips, and the latter recharges it during the long ones.
That's pretty clever. It leverages the fact that most people make a large number of short trips, and a smaller number of long trips. Also if it's modular enough, this design could allow replacing one or the other battery if the user does lots of short trips, or lots of long trips. Also could let the manufacturer do market segmentation, e.g. a high performance model with no LFP, and both parts of the "high-performance…
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Re: BMW EV achieves 1000km in range using Dual-Chemistry batteries
#19Re: BMW EV achieves 1000km in range using Dual-Chemistry batteries
#20BMW, build a charging network. That’s really the most consequential thing for drivers.
But don't forget to make it app only, because we don't want to build charging network which would be actually useful.
https://electrek.co/2023/07/11/europe-passes-two-big-laws-to...
> the new rules also mandate simpler charger payments. As-is, some networks require subscriptions or app downloads. But under these rules, customers must be able to pay with cards or contactless devices, and prices must be displayed to the customer.