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New Higher Power DC Charging Standard Coming From China

Discussion in 'Supercharging & Charging Infrastructure' started by quantumslip, Jun 18, 2018.

  1. quantumslip

    quantumslip Member

    Mar 3, 2015
    Houston, TX
    Some of y'all may already know that China has their own set of charging standards for AC and DC charging. Tesla had to redesign their car to support this:

    Tesla unveils new dual connector charge port design for Model S and Model X

    The DC port is new, and the /C port is a reversed Type 2 port.

    Now while reading the news about Chademo's meeting, it seems that China is working on a more higher powered DC port. From here (read page 43 onward):


    It looks like the SE side may be backwards compatible with the EV side that use the other GB/T DC standard. It also seems like based on google translate that Japan and China may try to have some compatibility around the DC side of things.

    900 kW max charging does sound like a lot, though it would work great for something like the Tesla Semi.
    • Informative x 3
  2. BioSehnsucht

    BioSehnsucht Model 3 LR

    Apr 1, 2016
    DFW, TX
    Don't forget Tesla can only charge at ~400V nominal. So not all those standards are useful (some provide plenty of power, some are much slower than Tesla proprietary).

    1500V x 600A = 900kW for New GB/T would peak out at presumably 400V x 600A = 240kW which actually is still higher than current Tesla proprietary, so with the appropriate hardware (either adapter or built into vehicle) Teslas could still use New GB/T to their (the vehicle, not the charger)'s fullest capacity.

    But old GB/T would peak out at 100kW (vs 237.5kW rated peak) on a Tesla, and existing Chademo standard (there's a new one planned but I doubt any real public hardware exists yet) would max out at 400V x 125A for 50kW (vs 62.5kW rated due to peak of 500V x 125A). Similarly CCS 1.0 is 400v x 200A = 80kW max, while CCS 2.0 will be 1000V x 400A (limited to 400V x 400A and thus 160kW for Tesla, again better than existing superchargers).

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