New Batteries For EV's

joeyd999

Joined Jun 6, 2011
6,329
and it kills the world in the process , great !
When adjusted for population growth, the climate-related death rate per million people has fallen from around 255 in 1920 to about 1.9 in 2020, a 99.25% decrease.

So not only are you wrong, you are dramatically, conclusively, demonstrably wrong.
 

Thread Starter

MrAl

Joined Jun 17, 2014
13,716

joeyd999

Joined Jun 6, 2011
6,329
seems China is beating us in co2 emissions,
pity , us used to be a world leader .
https://www.theguardian.com/world/2...ths-analysis-finds?CMP=Share_AndroidApp_Other
Their emissions also dropped in 2015 and 2016. But, like their propaganda, CO2 emission increase dramatically over time, on average.

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Did you know that about 160 new coal fired power plants will have been commissioned by the Chinese from 2024 through the end of 2025?

Don't get me wrong: I don't care about CO2. I wish we were building those coal plants here (and nuclear, too). It would make all our lives better in innumerable ways.

But I watch you root for your own destruction (and mine) with dismay.

I'd much rather you just lived in China and left us life-loving folks alone.
 

nsaspook

Joined Aug 27, 2009
16,333
Sorry if it's behind a paywall. It worked the first time I looked at it.
https://transformers-magazine.com/t...nsformer-failure-halts-waratah-super-battery/
Despite the failure, Akaysha Energy confirmed that the facility continues to provide 350 MW and 700 MWh of capacity under the System Integrity Protection Scheme (SIPS), acting as a grid stabiliser for Sydney, Newcastle, and Wollongong.
https://reneweconomy.com.au/was-the...ul-battery-too-much-for-crippled-transformer/
Was the high cycling of Australia’s most powerful battery too much for crippled transformer?

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Some outside observers say the fact that all transformers were taken off line as a precaution, and problems found in a second unit, suggest that is one possibility.
These things are used to simulate rotational inertia energy reserves when RE energy is the main driver in the grid. Looks like they were pumping massive energy into the grid when it smoked.
https://www.wtc.com.au/our-company/...ransformer-for-waratah-super-battery-project/
On Saturday, the last of the three 350MVA 330/33/33kV power transformers started its epic journey out of Melbourne to its final destination in NSW, at the site of the former Munmorah coal-fired power station, in a complex 9-day operation. With a transport mass of 170 tonnes and being carried by a 477-tonne superload, the transformer makes for an unforgettable sight.
...
The project is being developed by Akaysha Energy. WTC is supplying 3 x 350MVA 330/33/33kV and 145 x 7.3MVA 33/0.77/0.77kV transformers (all made in Australia) to Consolidated Power Projects (CPP) and Akaysha Energy for the project.
WAG
I suspect the inverter power/control system had a critical failure as the root cause, that caused a massive harmonic current from waveform distortion and/or some sort of DC saturation current( shunting that power to the transformer instead of the grid) into one or more phases as they damaged more than one transformer.
 

WBahn

Joined Mar 31, 2012
32,896
Any time I see words like "breakthrough" and "could" in a title, it's a big red flag for me. Usually, it's some company or university issuing a rosy press release that the "news" folks jump on when, in reality, it is almost always some early research result, the vast majority of which never lead anywhere at the end of the day (this is the nature of the beast when doing research).
 

Thread Starter

MrAl

Joined Jun 17, 2014
13,716
Hi there,

Yeah, I have to agree with WBahn here, mostly because I see these breakthroughs so many times, and by the time I get to the end of the article I am still guessing if we will see that come to fruition or not. That means the article really didn't tell me much at all.

That means to me, that the one line in the title already tells me the whole story: It could be, or it might not be. We might get better batteries, we might not, so no waste of time reading the whole article.

This happens with so, so, so many things these days in include extraterrestrials, Bigfoot, materials science, astronomy, cosmology, you name it, it's got it's own "might-be" category that appears all over the place.
What really makes it annoying is that then others pick up on this 'possibility' and then repeat it and then add to it, so after some years we have an entire huge base of could-be's spread all over the spectrum. They might see it gain popularity as some novel improvement or discovery, and so they jump on it too. That seems to be the reason we have so, so, so many TV shows with Bigfoot and aliens even though there is no solid proof of either one.
Any of us can guess about this stuff, what we need is proof and instead of could-be's we need here-and-now-be's so we actually gain something tangible.

I guess it does not hurt to think about a little, but don't spend too much of your precious lifetime bothering too much with it.
 

cmartinez

Joined Jan 17, 2007
8,783

WBahn

Joined Mar 31, 2012
32,896
Yeah, I know it's yet another article by crappy IE ... but this looks like an interesting challenge:

More than likely, it just the usual kick-the-can-down-the-road-while-we-continue-to-bilk-investors-as-long-as-we-can approach.

Having said that, it appears that the VTT's report validates one (and apparently only one) of their claims, namely fast charging. But although their charge time to 80% capacity is about half what production 800 V Li-ion packs do, it is apples to oranges. The test intentionally pushed the charge rate and was for a single bare cell. Production batteries have to balance charge among cells, manage heat dissipation from the entire pack, and impose safety limits. So it's unclear (to me) that a 2x reduction in charging times in this kind of comparison truly represents a monumental advance. Beyond that, Donut Labs made claims about energy density, cycle life, and the chemistry (no toxic or rare-earth materials). The VTT tests didn't address any of that, and it is THOSE claims that are getting the backlash.

So, to some degree, it's a case of someone claiming that their black IC engine gets 100 mpg and, when critics push back on the 100 mpg claim, they release a report from an independent testing facility that verifies that the engine is, in fact, black.
 

wayneh

Joined Sep 9, 2010
18,115
I almost regret posting this - it's almost certainly BS - but it's worth seeing what's "hot" in the battery world.

https://www.scmp.com/news/china/sci...te-could-double-ev-range-and-run-extreme-cold

Note a key sentence at the end: "Despite the high performance at room and low temperatures, the team said there were still issues to be addressed to increase the high-temperature performance of the electrolyte."

One thing that raised an eyebrow for me was that they published in Nature. In my previous life Nature was a highly respected journal. Is that no longer true? It's easier for me to believe that Nature has sold out than to believe the extraordinary claims of the authors.
 
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