CATL M3P Deep Dive // The Manganese Demons

In this video I'll do a deep dive in CATL's M3P chemistry, which is an LMFP chemistry with some additional dopants. LMFP increases the energy density of LFP by 15-20% by adding some additional manganese. The question is, if that's how simple it is, why didn't this happen before? In short, it's manganese demons like Jahn-Teller effects and dissolution issues.

Venmo: @thelimitingfactor

*Timeline*
00:00 Introduction
01:25 LMFP is LFP Doped with Manganese
02:14 Challenge #1 // Electronic Conductivity
03:17 Challenge #2 // Jahn-Teller Effects
04:47 Challenge #3 // Dissolution
05:26 How M3P Solves the Jahn-Teller Effects
07:00 Challenge #4 // Ionic Conductivity
09:01 How Particle Design Solves the Dissolution Issues
12:24 Summary

Intro Music by Dyalla: Homer Said

[thelimitingfactor]

Note: The doping elements are added to Nickel cathodes for different reasons.

For example: Instead of the crystal structure distorting and twisting, it collapses like bookshelves.

If you're curious about that, this video might help:

[justlisten]

Im not sure about most things in life, but one thing I'm certain about is anyone watching videos on this channel, and not at the absolute minimum, leaving a thumbs up, needs to reevaluate themselves... We must support Jordan in every way possible. The value he brings to the community is incredible.

[DanielWillis-qg]

10 hours in and over 13k views. All just to hear some guy go on about batteries.... Must be something to it. :) Thanks for all the work you do.

[Jjames]

A 15% improvement to energy density at the cost of up to half the potential cycle life… that’s not necessarily a trade-off I would take, even as fanatical as I am about the many virtues of weight savings.

[jimcallahan]

Juan-Teller Effect (JTE) Historical Note:
The "Teller" in Juan-Teller is the Edward Teller associated with the H-bomb.
"The effect is named for Hermann Arthur Jahn and Edward Teller, who first reported studies about it in 1937.[1]: sec. 13.4 " -- Also interesting in our context "An important part of the modern theory of the cooperative JTE, [44] can lead to structural phase transitions. It is important to note that many cooperative JT systems would be expected to be metals from band theory as, to produce them, a degenerate orbital has to be partially filled and the associated band would be metallic. However, under the perturbation of the symmetry-breaking distortion associated to the cooperative JTE, the degeneracies in the electronic structure are destroyed and the ground state of these systems is often found to be insulating (see e.g.[45])."

[budgetaudiophilelife-long]

🙋‍♂️THANKS JORDAN AND YOUR SUPPORTERS, FOR EXPLAINING THIS, FOR US LAYPEOPLE TO COMPREHEND 🤔💚💚💚

[whlphil]

Great video as usual Jordan, love learning from what you learn it’s a great journey!

[MyrKnof]

If the chart at 12:15 is to be believed, 1/5 of the cycle life seems like a very high price to pay for what you get.

I'd actually like a cycles * Wh/kg or Wh/L kinda metric. I think it gives a better comparison of the products.

[klauszinser]

Well done. Time to refresh/recover my previous knowledge of molecule physics? :-)
Also thanks for the outlook/extrapolation how battery prices could go down. (Without the big demand of vehicle battery storage this would and will not happen; similar to solar panels).

[JoelSapp]

Adding a comment to help the algo. Great content as always.

[ooTheMAXXoo]

Just wanted to give this more thumbs up!!!

[skane]

Finding videos like this on YouTube is like panning for gold and finding a big yellow nugget

[newscoulomb]

If M3P is LFMP, the biggest benefit is actually power density. The energy density is also beneficial, but the ~0.05 increase in nominal voltage both offers higher power at a given capacity and requires fewer cells to achieve a given power level.

[matthewspencer]

Comparing Tesla's dry electrode coating to the normal wet slurry and ovens.

I'd be curious how frequently critical manufacturing defects happen while a normal jellyroll is coating and cooking.

We know it's high with the DBE method as it's early days, but long term I wonder if DBE has a chance of eventually achieving lower failure rates than the wet slurry process

[karlstathakis]

Absolutely phenomenal analysis, you're really making this stuff accessible for the layperson.

[davidwilkie]

At any era in history, and you can identify organisms, organelles and organs all to be in a projection-drawing picture-plane containment of coherence-cohesion objectives in temporal sync-duration resonance quantization.

Too bad if this is not a flash-recognition thing for instantaneous education, you have to teach yourself how to make sense-in-common cause-effect connection Eternity-now out of pulse-evolution WYSIWYG QM-TIME Completeness Holographic Principle Act-uality.

Students who can exchange ideas and concepts with top-notch teachers who, no matter how advanced they are, can not be more than your Self, sense-in-common cause-effect of memory associations. Definitely the Limiting Factor of Absolute Zero-infinity reference-framing containment positioning of Actuality.

[jonbenet]

I am excited about all of the manganese rich chemistries coming out. This M3P battery is a great median that will fill a lot of the EV segment. The high manganese ternary cells like Umicore's pre-lithiated HLM cathode material will probably take an upper end market and who knows about Rimac's high voltage MnNx batteries. Plus, Tailan's new Solid State, wow.

[JRP]

Who knew that a few degree difference in the crystal structure would matter? Fascinating stuff.

[vermillion]

2000 cycles against 10000 in lfp?? no thanks, even for half the price of lfp

[Jaggith]

Your videos are so good. Similar structure issues with concrete, but on a bigger molecule scale.