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Tesla's next-gen electric motors will get rid of rare earth elements

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Re: Tesla's next-gen electric motors will get rid of rare earth elements

#41

Post by photochemsyn »

Manganese-based permanent magnets seem to be a recent development in the research literature, could that be the technology employed here?

> "Manganese-based permanent magnetic materials have become an area of significant research activity in recent years as a potential alternative to permanent magnets based on Rare Earth (RE) metals. Manganese compounds are capable of achieving a relatively high energy product, BH, when processed to have a strong texture. Research has identified three promising compounds for Mn-based permanent magnets: Mn-Ga, Mn-Bi, and Mn-Al. While calculations show that these compounds cannot achieve the theoretical maximum energy products, (BH)max, of RE magnets, current research suggests than they can fill the property gap between inexpensive, but low-performance, ferrites and expensive high-performance RE magnets."

"Manganese-based permanent magnet materials" (2022) T Keller, I Baker - Progress in Materials Science

Re: Tesla's next-gen electric motors will get rid of rare earth elements

#43

Post by senttoschool »

labster wrote: post #38
senttoschool wrote: post #10

Earlier quoted context omitted.

China was our friend. It's the US that decided to unfriend China. Not the other way around.

China is nobody’s friend but China’s. You cannot interact with the Chinese government in anything other than a transactional manner. The only unfriending that happened is the US and China stopped agreeing on some limits, which hurt the feelings of the Chinese people.

>which hurt the feelings of the Chinese people

Yea, this did not happen. I was living in China during most of Trump's presidency. People in China did not get their feelings hurt because of trade disputes. Everyone knew it was just business.

But US mass media propaganda took it to a whole new level with anti-China sentiment during Trump years. Perhaps it was a tactic to distract Americans of their real issues? Maybe put the blame on some other entity?

Re: Tesla's next-gen electric motors will get rid of rare earth elements

#44

Post by hackerlight »

senttoschool wrote: post #16
abakker wrote: post #14

Earlier quoted context omitted.

China is a currency manipulator, human rights abuser, and a non-democratic state. that is a country we have done business with, and looked past, but the US can't be "friends" with terms like that. The relentless anti china propaganda has nothing on the BS that china's state-owned media has said about the US over the last decade. The AVERAGE issue of global times is worse than trump's rhetoric.

US is a war machine, can drum up support to invade any country even if they're lies, and in the last 300 years, it's hard to find a country that has abused more human rights. The birth of the US coincided with a genocide of native Americans, wars for more land, slavery of an entire people. And yet, the US actually has allies. After all the crap the US has done, it still has allies. What? Why? Oh, because it's all abo…

You're talking about the past. The US isn't currently carpet bombing Vietnam, it isn't currently allowing slavery.

China, currently in 2023, is all the things the above poster says it is. A sabre rattling dictatorship that is intentionally oppressing its minorities. Chinese people are awesome but the Chinese state can go to hell.

This isn't to excuse Trump's sinophobia. He can go to hell too.

Re: Tesla's next-gen electric motors will get rid of rare earth elements

#45

Post by workingdog »

senttoschool wrote: post #30
to11mtm wrote: post #25

Earlier quoted context omitted.

> and in the last 300 years, it's hard to find a country that has abused more human rights. Surely, between: - The Armenian Genocide - The Holocaust - The Holdomor - Pogroms - Apartheid regimes - Purges of the Bourgeoisie - One Child Policy I find it hard to think that the US (With it's many, many fuck-ups) is the only, let alone the -worst- guilty party in the last 100 years. O wait, if we only counted the last 100…

I find it hard to think that the US (With it's many, many fuck-ups) is the only, let alone the -worst- guilty party in the last 100 years. Slavery and native American genocides are pretty bad - as well as the countless countries US has invaded/bombed. But anyways, are we trying to estimate which country has done more bad in the last 300 years? China or US? And are you willing to become more pro-China if we conclude t…

>>Slavery and native American genocides are pretty bad

Any student of history would understand that China colonizing the north american continent would have been much much worse for Native Americans. There currently are slaves in China right now.

Re: Tesla's next-gen electric motors will get rid of rare earth elements

#46

Post by paxys »

toomuchtodo wrote: post #2

Why this is important: If successful, this contributes towards the reduction of national security risk around rare earth supplies and supply chain located in a possibly unfriendly nation state (major deposits are in Russia and China) and also means you don’t have to establish rare earth mines or supply chains in your own countries (capital and environmental concerns). It’s a big deal! Also, just as newer battery chem…

It's weird though that they are reducing reliance on China for rare earth elements while simultaneously increasing their reliance on China for manufacturing.

Re: Tesla's next-gen electric motors will get rid of rare earth elements

#47

Post by senttoschool »

hackerlight wrote: post #44
senttoschool wrote: post #16

Earlier quoted context omitted.

US is a war machine, can drum up support to invade any country even if they're lies, and in the last 300 years, it's hard to find a country that has abused more human rights. The birth of the US coincided with a genocide of native Americans, wars for more land, slavery of an entire people. And yet, the US actually has allies. After all the crap the US has done, it still has allies. What? Why? Oh, because it's all abo…

You're talking about the past. The US isn't currently carpet bombing Vietnam, it isn't currently allowing slavery. China, currently in 2023, is all the things the above poster says it is. A sabre rattling dictatorship that is intentionally oppressing its minorities. Chinese people are awesome but the Chinese state can go to hell. This isn't to excuse Trump's sinophobia. He can go to hell too.

Chinese people are awesome but the Chinese state can go to hell.

Chinese people support the CCP. Most Chinese citizens are pro-CCP. So if you have a negative view of the CCP, then you should have a negative view of Chinese too.

But you're probably wondering why Chinese people support the CCP? It's because the CCP improved the lives of 1.4 billion people and is still improving their lives. GDP per capita went from $317 in 1990 to $12,000+ in 2022. And why would they overthrow the CCP now? Makes no sense.

But if the CCP needs to be overthrown and is no longer working for Chinese people, they will overthrow it. Chinese people have been overthrowing governments for millenniums.

Re: Tesla's next-gen electric motors will get rid of rare earth elements

#48

Post by satiric »

Umm, Teslas do not use DC motors, I don't know where the article got that idea. I doubt they've ever used DC motors for anything more powerful than an electric seat adjuster. The Model 3 does use a permanent magnet motor, but it's an AC synchronous reluctance motor.

If you're going to make an article about electric motors in Teslas, at least make sure you get the facts about the electric motors right.

Re: Tesla's next-gen electric motors will get rid of rare earth elements

#49

Post by paxys »

satiric wrote: post #48

Umm, Teslas do not use DC motors, I don't know where the article got that idea. I doubt they've ever used DC motors for anything more powerful than an electric seat adjuster. The Model 3 does use a permanent magnet motor, but it's an AC synchronous reluctance motor. If you're going to make an article about electric motors in Teslas, at least make sure you get the facts about the electric motors right.

The first line of the article should tell you what you need to know about their quality control:

> Tesla announced at its 2024 Investor Day event that it plans to bring...

Re: Tesla's next-gen electric motors will get rid of rare earth elements

#50

Post by senttoschool »

workingdog wrote: post #45
senttoschool wrote: post #30

Earlier quoted context omitted.

I find it hard to think that the US (With it's many, many fuck-ups) is the only, let alone the -worst- guilty party in the last 100 years. Slavery and native American genocides are pretty bad - as well as the countless countries US has invaded/bombed. But anyways, are we trying to estimate which country has done more bad in the last 300 years? China or US? And are you willing to become more pro-China if we conclude t…

>>Slavery and native American genocides are pretty bad Any student of history would understand that China colonizing the north american continent would have been much much worse for Native Americans. There currently are slaves in China right now.

Oh wow. Worse than the complete annihilation of an entire large continent of people?

Are we now blaming China for genocide of Native Americans too?

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