Will1991

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Perhaps Toyota revamped all their eAxle lineup?

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-> It seems to have all in one! T/A, MG and INV!

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Maybe this 1-motor HV system is going to be used in the Thundra/LX with that first eAxle for P4 SUV applications?

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spwolf

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2 speed performance is ambitious. It bodes well for their efforts if they want it in "medium car" not just premium.
 

flipside909

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We really need a true large SUV that is inline with the size of the Navigator and Escalade. Everyone in the US wants an SUV, but what they really need is a minivan. Lexus LM would make more sense and practicality than a bof SUV.

I have high hopes a future TX will solve some of the people moving/cargo aspects that the RX L, GX and LX can't deliver.
 

Levi

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turbo v8 powered ISF will be interesting. will make it again the last of its kind.
 

Will1991

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Toyota recently published a patent for an all-solid-state battery:

"An all-solid-state battery includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer. The solid electrolyte layer separates the positive electrode layer from the negative electrode layer. The positive electrode layer includes a positive electrode active material, a conductive material, an oxide-based lithium ion conductor, and a sulfide-based solid electrolyte. A cross section of the positive electrode layer satisfies a relational expression (1): 3%≤SB/SA≤30%. In the relational expression (1), “SA” represents a partial area of the oxide-based lithium ion conductor that is in contact with the positive electrode active material, and “SB” represents a partial area of the oxide-based lithium ion conductor that is surrounded by the sulfide-based solid electrolyte."

In the same patent, they mention a way to solve or mitigate the possible internal resistance increase associated with solid state batteries:

"For reducing interface resistance, use of a covering layer has been proposed. More specifically, a positive electrode active material (particles) is covered with an oxide-based Li ion conductor. Thus, a covering layer consisting of the oxide-based Li ion conductor is formed. The covering layer may reduce the number of contacts between the sulfide-based solid electrolyte and the positive electrode active material. As a result, the interface resistance may be reduced. The covering layer is also called a buffer layer or a reaction-reducing layer, for example."
 
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mikeavelli

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It’s always interesting to me to see complete bullshit posted and how it spreads so quickly. Then when the actual facts come out no one cares and it isn’t posted nearly as quickly.

It’s like car people like being lied to lol...
Toyota recently published a patent for an all-solid-state battery:

"An all-solid-state battery includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer. The solid electrolyte layer separates the positive electrode layer from the negative electrode layer. The positive electrode layer includes a positive electrode active material, a conductive material, an oxide-based lithium ion conductor, and a sulfide-based solid electrolyte. A cross section of the positive electrode layer satisfies a relational expression (1): 3%≤SB/SA≤30%. In the relational expression (1), “SA” represents a partial area of the oxide-based lithium ion conductor that is in contact with the positive electrode active material, and “SB” represents a partial area of the oxide-based lithium ion conductor that is surrounded by the sulfide-based solid electrolyte."

In the same patent, they mention a way to solve or mitigate the possible internal resistance increase associated with solid state batteries:

"For reducing interface resistance, use of a covering layer has been proposed. More specifically, a positive electrode active material (particles) is covered with an oxide-based Li ion conductor. Thus, a covering layer consisting of the oxide-based Li ion conductor is formed. The covering layer may reduce the number of contacts between the sulfide-based solid electrolyte and the positive electrode active material. As a result, the interface resistance may be reduced. The covering layer is also called a buffer layer or a reaction-reducing layer, for example."
when it debuts, true game changer
 

ssun30

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"For reducing interface resistance, use of a covering layer has been proposed. More specifically, a positive electrode active material (particles) is covered with an oxide-based Li ion conductor. Thus, a covering layer consisting of the oxide-based Li ion conductor is formed. The covering layer may reduce the number of contacts between the sulfide-based solid electrolyte and the positive electrode active material. As a result, the interface resistance may be reduced. The covering layer is also called a buffer layer or a reaction-reducing layer, for example."
In a 2019 conference at a poster session I talked to a Spanish-Japanese collab group sponsored by Toyota who were working on this exact buffer layer material. I won't name the compound and process used but back then they were able to improve interface impedance by 10x while maintaining 98% capacity at 0.1C for 500 cycles (the work was done 2016-2017 and published in 2018). And their process is scalable at production level not just in labs.

It looks like they made a lot of progress between now and then. However I still haven't seen anyone talk about performance over 1C. Every paper I read the tests are done at sub-1C. Therefore I am skeptical about commercialization before 2025.
 
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Will1991

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Now that you mentioned it, I did look into some patents for solid state cathodes/batteries production for vehicles… But I’m still not sure about my interpretation, if it’s for prototype production or for volume production…

Either way, it seems TMC is in an amazing path!

SSB’s, a truly amazing Fuel Cell system (IMO, they’re short selling what they’ve made) and some other info’s about controlling a compression self-ignition internal combustion engine (???).
 

CRSKTN

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Any news on the horizon to expect? I imagine NX must reveal at some point soon.

We are halfway thru 2021 and I'm not impressed by this supposed lineup refresh, given we have heard effectively nothing of real substance.

It's going to be another month til we see the new NX, and any other reveals probably won't be until late Q3 or into Q4.

Then what, at least a few months until any of it hits dealerships?

It's going to be Q1, Q2 2022 by the time all their talk even starts to materialize in dealerships.

That's a brutal performance given the velocity of accouncements from other companies.

Mike and others in the loop, this can't really be how Lexus wants to deliver, is it? This pace doesn't inspire confidence.