1 Million mile EV battery

[Explorer-1]

you could, but... your car will be dead in the morning unless you only need to go 5 miles, and the existing cars will need some electrical upgrades to do that.

This sounds like mostly marketing. More range, is what we (I) need right now.

Elon and his Tesla team commented on this idea of Vehicle to Grid concept today as part of the Battery Day presentation. Essentially: It's not happening, and it's not really that good of an idea.

 

[Ravi Kempaiah]

The work done by Prof. Dahn's team was highlighted in the battery day event.

 

[Explorer-1]

The big news was the fundamental changes in the manufacturing process for the cathode, anode, and cell construction. The material engineers had a red-letter day, but of course they still have lots of issues to workout before they can build a full scale factory. They are using the Musk design approach, build it, test it, refine it, rebuild it, test it, repeat, launch it.

Some very exciting concepts in battery cell manufacturing. Essentially they are almost reinventing the processes of manufacturing a Lithium-Ion battery, and combining that with some further almost as big (but not quite) changes in how their cars will be manufactured.

Pretty excited, but their 3 year plan, will likely be more like 5 years, but definitely seems real and on track. This is a lot bigger than most people will understand.

Most people will be upset they didn't show something new that is shipping tomorrow. Luckily one great aspect of Musk is he works differently, and much smarter.

 

[FlatSix911]

The big news was the fundamental changes in the manufacturing process for the cathode, anode, and cell construction. The material engineers had a red-letter day, but of course, they still have lots of issues to workout before they can build a full-scale factory. They are using the Musk design approach, build it, test it, refine it, rebuild it, test it, repeat, launch it.

Some very exciting concepts in battery cell manufacturing. Essentially they are almost reinventing the processes of manufacturing a Lithium-Ion battery and combining that with some further almost as big (but not quite) changes in how their cars will be manufactured.

Pretty excited, but their 3-year plan, will likely be more like 5 years, but definitely seems real and on track. This is a lot bigger than most people will understand.

Most people will be upset they didn't show something new that is shipping tomorrow. Luckily one great aspect of Musk is he works differently, and much smarter.

Definitely a memorable day in our continuing journey to sustainalble transportaion.

Here is the full video of the Shareholders meeting... skip to -1.37 for the Battery Day presentation.

 

[Ravi Kempaiah]

Definitely a memorable day in our continuing journey to sustainalble transportaion.

Here is the full video of the Shareholders meeting... skip to -1.37 for the Battery Day presentation.

When they announced the Plaid Model S with a Laguna Seca time of 1 min 30 secs, I thought of you

 

[JRA]

Do you get employee pricing on that Ravi

 

[FlatSix911]

When they announced the Plaid Model S with a Laguna Seca time of 1 min 30 secs, I thought of you

View attachment 66275

Thank you Ravi, I can't wait to drive the Plaid Tri-motor at Laguna next year.

 

[6zfshdb]

Deleted

 

[Ravi Kempaiah]

This is a shameless plug but Sandy Munro said I did a fabulous job presenting some battery day stuff and it made my day.

Sandy Munro has more experience than my age and it was very encouraging to hear from him.

Dissecting battery day info with Sean Mitchell

 

[Explorer-1]

I saw Sandy's brief interview with e-for-electric, but not these more direct ones.

 

[Ravi Kempaiah]

I saw Sandy's brief interview with e-for-electric, but not these more direct ones.

Sandy Munro channel is a goldmine!
He brings in wealth of experience and his reports and insight videos are so full of knowledge.

 

[Ravi Kempaiah]

In the latest video, Dr. Dahn talks about cells that are good even after 15,000 cycles or 3.5 million kms.
Li-ion technology has come a long way and this is what true state-of-the-art looks like.

 

[kmccune]

I suspect Tesla is going to introduce a new battery chemistry next year that will allow its new pickup truck and it’s semi truck to compete with ICE.

Hope so,I am wondering what the AH capacity of the new 46 series cells is, could sure simplify homemade battery packs.

 

[FlatSix911]

Has anyone else received an invitation to this EBike Virtual Conference? Are you planning to attend?

Ebike Future Conference & Expo - Online

The best and biggest global electric bike business online conference in the world

www.ebikefuturecon.com

 

[Ebiker01]

In the latest video, Dr. Dahn talks about cells that are good even after 15,000 cycles or 3.5 million kms.
Li-ion technology has come a long way and this is what true state-of-the-art looks like.

When do you think the 4680 cells could get to ebikes ? I've read an article that said LG is also looking into making them, but it looked like they work with Tesla on them.

 

[FlatSix911]

When do you think the 4680 cells could get to ebikes ? I've read an article that said LG is also looking into making them, but it looked like they work with Tesla on them.

I think that EBike technology needs to catch up with adopting the current 2170 cells first... 4680s are still a long way away.

 

[JRA]

2170 cells are a step up the ladder for sure. I have been using them for 2.5yrs, one of the benefits of DIY and open source ability, and they outperform the 18650 packs I have had in the past. If 4680's come along I will for sure try them out however.

 

[Ravi Kempaiah]

Hope so,I am wondering what the AH capacity of the new 46 series cells is, could sure simplify homemade battery packs.

It will be closer to 15Ah in capacity. So, in an E-bike all you need is 10 of those cells instead of 40.
In the video, I talked about the benefits of 4680 in comparison to 1865 and 2170 used currently.

@JRA , @FlatSix911 the Tesla Model S and X still make use of the 1865 cells. The Model 3 and Model Y use the 2170 format.
The energy density difference between 1865 and 2170 is very minimal. The benefits are more in terms of manufacturing as you need less welding and less cell housing material. There is some improvement in power density but not an appreciable difference in energy density (it's about ~2-3% only). 4680 offers a lot more improvement in power density and moderate improvement in energy density and that is because they are going with high-Nickel cathode and Silicon-blended anode not just because of changing the size to 4680.

 

[Ravi Kempaiah]

Has anyone else received an invitation to this EBike Virtual Conference?

Ebike Future Conference & Expo - Online

The best and biggest global electric bike business online conference in the world

www.ebikefuturecon.com

The gentleman was kind enough to invite me for a session on batteries and I have lots of technical material to talk about but the timing is not right. I have other deadlines to complete this month.

I will look forward to presenting next year.

 

[FlatSix911]

The gentleman was kind enough to invite me for a session on batteries and I have lots of technical material to talk about but the timing is not right. I have other deadlines to complete this month.

I will look forward to presenting next year.

Sorry to hear that you cannot present this time... looking forward to next year!