Amprius Battery research

[Grumpy2]

Latest on Munro visit to Amprius battery in Fremont, Calif. Safe to say Sandy was impressed. The 7 year cycle for battery improvement may have just been shortened.

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[The Weatherman]

Does my heart good to see the potential for new battery technology and by association improvements in vehicle EV charging technology. Thanks

 

[MickeyAO]

More on Amprius in this thread Amprius Creates a 500Wh/kg Battery | F-150 Lightning Forum For Owners, News, Discussions (f150lightningforum.com)

 

[Grumpy2]

I didn't expect to see this develop so fast. Looks like they are very well funded. All the parameters seem a big step up to our current Lightning battery.

 

[MickeyAO]

Nice facility and an amazing cell...I just wish they showed more about the cathode (which I previously said they buried the real headline about the cell).

HOWEVER, what you see in the video is less than a 3 Ah cell. When they were initially charging the cell, it was under 30 A current and they said it was at a 10C rate (10 times the capacity of the cell). They still need to scale up into the 70-100 Ah range for a pouch cell to be used in EVs or VTOL (mentioned in the video) to be viable in a weight/volume arena. I'm getting ready to test a 340 Ah cell, but it is a prismatic cell instead of a pouch.

 

[Grumpy2]

Mickey, the heat rate of rise, and peak level, they wanted to say was normal, was it normal? That charging rate would certainly be impressive.

 

[MickeyAO]

Mickey, the heat rate of rise, and peak level, they wanted to say was normal, was it normal? That charging rate would certainly be impressive.

It is a little high but nothing to worry about. I saw 45C in the video, while I set my safety limits while cycling to 55C.

 

[Bills R Electric]

Latest on Munro visit to Amprius battery in Fremont, Calif. Safe to say Sandy was impressed. The 7 year cycle for battery improvement may have just been shortened.

I hope:

a) the tech does pan out.... as most know Tesla thought they would take a big step forward with their 4680 batteries. While they work well in the lab in small batches, producing them at scale without a lot of rejects ain't easy. Amprius' tech will face the same challenges.

b) Let's hope Amprius' lab only proven advancements don't take 7 years to make it to the marketplace. It would be exciting as hell if those charging speeds, and energy density, could hit the market in say 3 years. I mean, charging all EVs from 10% to 80% in about 10 minutes would be a game changer.

 

[Grumpy2]

A significant plus of the Lightning's design; the battery can be easily repaired, modified, and even replaced.

The approach of a "structural" battery, thus a disposable car, may be seen as planned obsolescence in the not to distant future.

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