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WEBFI-TECH-The BYD Blade Battery Evaluated: The Hype is Real (Mostly)



In this video, the BYD blade battery will be evalutated. The hype is real (mostly). I’ll cover why blade battery cells so safe, cell and pack level energy densities, how BYD turned a prismatic cell into a structural member within the vehicle, BYD’s claims of 1000km of range, pack level cost, and what the blade battery means for Tesla.

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*Timeline*
00:00 Intro
00:52 Safety
04:52 Energy Density
11:13 BYD Han
12:31 Ocean-X
14:23 Interim Summary
15:29 Cost
17:52 BYD vs Tesla Structural Packs
19:13 Summary

#BattChat #BatteryTwitter

Intro Music by Dyalla: Homer Said

source

36 Comments

  • The Limiting Factor on January 5, 2022

    Notes:

    1) 1000km for NEDC is about 432 for EPA. This wasn't a Typo.
    https://insideevs.com/features/343231/heres-how-to-calculate-conflicting-ev-range-test-cycles-epa-wltp-nedc/#:~:text=So%2C%20U.S.%20BEV%2FPHEV%20drivers,a%20standard%20deviation%20of%200.092.
    2) Correction from Matt Lacey! "Steel is common for cylindrical, but Al is standard for prismatic (regardless of chemistry) – lighter and better thermal conductor than steel though usually thicker. Can is grounded to +ve electrode to avoid corrosion. Blade cell is Al can, not steel"
    3) However, re 2), this doesn't change the fact that they might use thicker aluminum to provide rigidity. However, there might be another thing causing the low Wh/kg in BYD: It has more surface area.
    4) Tesla has started putting 60 kWh packs in China Model 3's, which provide 276 miles of range. This means the BYD Blade might provide 300 miles of range.
    5) There is no such thing as a safe battery pack, only safer. That's the key takeaway with blade safety. So, yes, you can probably make it explode somehow, but it's less likely to.
    6) YouTube wiped the original notes along with all the comments. Not sure why.

  • Fish Gutz on January 9, 2022

    BYD is a Chinese gov't majority owned company. Even the Chinese people that can afford to buy imports will not buy a BYD car.
    One must remain skeptical of an technology claims for a Chinese company.
    After all, China spends far more on industrial espionage than on original innovation. Innovation requires imagination. Chinese colleges teach what to think, not how to learn, grow, and create.

  • GantryG on January 9, 2022

    Another excellent report, thanks! 😀

  • Dean Rhodenizer on January 9, 2022

    0:27 – 1000Km is approximately 621 miles…

  • Todd Downey on January 9, 2022

    I WOULD NOT BELIEVE ANYTHING COMING OUT OF CHINA ESPECIALLY IF IS FROM THE GOVERMENT.JUST LOOK AT COVID LIES THEY TOLD.

  • Altair12131 on January 9, 2022

    16:25 Tesla has started delivering 60kwh model 3 sr+ in q4 2021 in europe. Do you think those are bladebatteries from byd?

  • Letruffier on January 9, 2022

    Hi,

    Thank you for your video and deep analysis. Have you heard of the GAC Aion graphene battery ? It seems too good to be true too…

  • Michael Crumpton on January 9, 2022

    In the short term there are bound to be shortages of battery materials due to the unprecedented demand, and this will likely affect LFP batteries less than other types as Iron and phosphate are unlikely to be a bottleneck. While Tesla could use the LFP batteries in their cars, this would require a bit of reengineering and lots of testing to get it ready for production. I suspect a more likely scenario is that Tesla is planning a big push on megapacks and using the cheapest safest battery, regardless of energy density makes sense. It also occurs to me that the Semi chargers are going to need some kind of battery buffer unless they are going to run extra high capacity lines to those chargers, and the Blade batteries would be ideal for that as well. Now the puzzle is, why is BYD stock so lethargic?

  • Abdul Shahin on January 9, 2022

    Some of this data is a bit old. Tesla can't match merc, or lucid for range efficiency, so clearly tesla had a huge efficiency advantage over competitors due to things other than batteries.

  • woolfel on January 9, 2022

    good video. the safety of the blade is appealing. They need third party validation so the world knows if the claims are accurate

  • dixon pinfold on January 9, 2022

    What's with the children's TV program delivery?

  • Rykahnz on January 9, 2022

    There's no way the gravimetric E density is caused by thicker steel walls. Battery metals are already really dense and a little more thickness won't mean over 15% loss compared to CATL. 15 minutes of math would disqualify that theory.

  • Mark Yormark on January 9, 2022

    One of the metrics that was not mentioned in this video is watt output per weight. Some LFP cell are 30"C" or 30 x times the amp hours. The BYD blade has such a low"C" rating I am pretty sure it will not support a high kW output of the motor/ drive. There needs to be a LFP cell that provides a better balance between performance and efficiency.

  • ASIF ARMAN on January 10, 2022

    What's with the T?

  • Gacheru Mburu on January 10, 2022

    👍👍

  • Tim Collins on January 10, 2022

    Why back Tesla? Surely you should want to see the consumer get the best possible deal? This gives your opinion appear to be politically driven.

  • Batmandrew on January 10, 2022

    Great video as always, Jordan. I've always assumed Tesla would use 4680 format, for their in-house LFP. Do you think that will be the case, (specifically for their in-house LFP cells)? Or will they pursue something like the BYD blade? Side note: I'm assuming Tesla won't start producing a 4680 or any in-house LFP for a while. What timeline are you assuming, for in-house designed LFP production for Tesla?

  • Jonathan on January 11, 2022

    The cover for the battery pack is made with a honeycomb core composite plastic plus fiberglass panel to reduce weight.

  • János Kovicz on January 11, 2022

    Byd makes unfinished shitty products, here in the Netherlands our public transportation replaced the busses eith byd and they where pathetic, parts falling off and batterys died within weeks of usage

  • ajitesh mishra on January 12, 2022

    lithium batteries sucks. China's hegemony for lithium has made lithium down down.World will soon shift to sodium.

  • teknophyle1 on January 12, 2022

    I have questions about the test environment versus the real world. In these puncture tests it looks like the battery is exposed to open air, meaning more ideal cooling conditions. So my question is what kind of airflow do these batteries get when they are installed? I'd venture a guess that they will get hotter when enclosed in a car chassis. Are there puncture tests of these batteries while they are installed in a car?

  • Alois Danner on January 12, 2022

    At 13:41, where would lucid sit on this chart?

  • KiwiM3P on January 12, 2022

    I think it's a mistake to use volumetric energy density to calculate vehicle efficiency, weight has much more impact than size on efficiency and you are assuming space is a limiting factor on pack size which isn't necessarily true.

  • waqas ghaffar on January 12, 2022

    Byd car manufacturers is coming in Pakistan?

  • SurrealKeenan on January 12, 2022

    I wouldn't be surprised if the blade was a scam. Chinese companies have become less trustworthy as time has gone on

  • Pallab Samanta on January 13, 2022

    Wait and see

  • Manoj Tirkey on January 13, 2022

    At the pack level, BYD can pack more individual blade battery cells without the cooling system unlike Tesla's battery pack. Perhaps that gives BYD a better volumetric density.

  • The Daily Trader on January 13, 2022

    Great explanation about the nail in the batteries

  • Humbled Artist on January 13, 2022

    The tech is impressive, but from a business perspective it will come down to cost/profit and mass production ability. The BYD Blade battery might be better, but if the vehicle cannot turn a profit or they cannot produce enough batteries to hit decent production numbers compared to Tesla, it won't matter.

  • dave robert on January 13, 2022

    Have you looked into Na – battery https://www.youtube.com/watch?v=aj4S6SgZQ9M

  • Joe Wilder on January 14, 2022

    I don't know why, but it seems I'm not getting notified of your videos

  • Hai Ting on January 14, 2022

    BYD launched the e-platform 3.0 subcompact hatchback model “Dolphin” in 2021 which has a range of 405km with a 44.9kWh battery. In 2022, BYD will launch an e-platform 3.0 compact sedan “Seal” aiming to compete with Model 3 with a range of 700km. Also the 2022 Model “Tang” SUV (2560kg) will be upgraded with a 108.8kWh blade battery pack with a NEDC range of 700km.

  • Brucec 95 on January 14, 2022

    Great video as usual. Would be interesting to see a video on "revolutionary new Sodium batteries" – seen a lot of hype lately about it being used for vehicles (as apposed to stationary use which seems more suited).

  • C T on January 15, 2022

    4:08 why was the blade battery almost fully discharged at 3.3V? The other batteries were fully charged at 4.2V. That's cheating!

  • Lei Yue on January 16, 2022

    Tesla will reveal their purchase of blade battery as soon as March.

  • Civiliza Serifusa on January 16, 2022

    Can't help wondering why the raw egg is present for the competing technology nail tests but absent for the blade. Is it to simulate the cooling liquid? I suspect it helps contribute to the thermal breakdown of metal based batteries.

    By present I refer to the nail actually passing through the egg en-route to puncturing the battery thereby delivering the liquid egg directly into the puncture hole.

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