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Interesting that they don’t mention the Amazon vans. Those will be a big consumer of that battery inventory for the next several years.
 

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Interesting that they don’t mention the Amazon vans. Those will be a big consumer of that battery inventory for the next several years.
In the Reuters article is just says vehicles, other people may be extrapolating the R1T and R1S from there and forgetting about the Amazon vehicles but does not look like that was the distinction from the announcement.

I also wish I could see the actual press release as it does not say anything about exclusive supplier either in the article. They could just be adding them as an additional source as the initial information I recall reading had LG as the supplier.

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Here's the full Reuters report with a quote from RJ:
(Reuters) - Electric vehicle startup Rivian, backed by Amazon.com Inc and Ford Motor Co, said on Monday that South Korean manufacturer Samsung SDI Co Limited would supply battery cells for its vehicles.

Rivian, which aims to put an electric pickup and SUV in production this year, said it had been working with Samsung throughout the process of developing the battery cells.

“We’re excited about the performance and reliability of Samsung SDI battery cells combined with our energy-dense module and pack design,” said RJ Scaringe, chief executive officer of Rivian.

The U.S.-based startup has raised $8 billion since the start of 2019 and added $2.65 billion funding in an investment round led by T. Rowe Price in January.

The Tesla Inc rival has been in talks with bankers about its plans to go public and is aiming for an initial public offering in September at a valuation of about $50 billion or more, Bloomberg News reported earlier this year.


Interesting quotes as well via the IEVs article linked above.

"Rivian’s R1T pickup and R1S SUV deliver an unmatched combination of performance, off-road capability and utility – the rugged duty cycle requires the module and pack to be designed to operate across challenging temperature and durability extremes. Rivian vehicles in development for fleet purposes will be in near-constant operation during the day and will operate in a wide range of thermal environments."

"Rivian has developed its battery module and pack to efficiently handle these challenging use cases. The battery management system has been engineered to intelligently respond to how a vehicle is being operated or charged. Extensive cell characterization testing across a wide range of operating conditions enables the battery management system algorithms to optimize the performance and life of the battery pack."
 

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InsideEVs mentioned in their article that Rivian is expected to use 2170-type cylindrical cells. Similar ones to the Tesla Model 3 and Y.

Rivian definitely isn't breaking any new ground re:battery tech. GM should be commended for going with large-format pouch cells; this approach has higher energy density and specific energy than cylindrical cells of the same chemistry. Tesla originally choose cylindrical cells just because they were ubiquitous, but I think pouch cells are the way (at least until solid state tech arrives, if ever). You can buy 48V PACKS comprised of Li-NMC pouch cells on Aliexpress that are 280+ wh/kg, and cheap to boot.

The nascent electric aircraft market pretty much solely relies on NMC pouch cells, because specific energy is everything in an electric aircraft. The only downside is that they tend to be explode-y if punctured or over-heated, but these are both solvable problems.
 
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