Hyundai Ioniq 5 battery inside [video]. The same will be in the Kii EV6 and Genesis GV60

A video with a disassembled Hyundai Ioniq 5 battery has appeared on YouTube. The film is in Korean, without subtitles, but you can see something on it. Among other things, how the manufacturer reduced the battery capacity from 77,4 to 72,6 kWh.

The interior of the Hyundai Ioniqa 5 battery with a capacity of 72,6 kWh on the example of a car battery on the E-GMP platform

The battery cover is fastened with countless nuts, literally every few centimeters. Inside 30 black cases, the modules are arranged in four rows (30 in total), inside which are 12 lithium-ion cells in packages provided by SK Innovation or LG Energy Solution. As we calculated, the capacity of each module is 2,42 kWh. Removing two of these means the Hyundai Ioniq 5 77,4 kWh destined for the US market, we get the Hyundai Ioniq 5 72,6 kWh marketed in the European market:

The battery is completely discharged, does not have the bulge at the rear, which was used to hide the cell management system (BMS) in older versions of cars. This time, it looks like the BMS is somewhere in the front or outside of the battery compartment. Round structures in the center – threaded bushings with which the package is attached to the vehicle chassis. Between modules you do not see any lines leading to the coolant - this one flows at the bottom of the tank, perhaps the modules are somehow connected to its circuit.

InsideEVs suggests that Hyundai's claimed battery capacities of 58, 72,6, 77,4 kWh are generic values. However, our measurements show that we are dealing with useful capacities. For example the 77,4 kWh battery, which we were able to charge from 29 to 100 percent, required 65,3 kWh of energy:

71 percent (= 100-29) of 77,4 kWh equals 54,95 kWhtaking into account, say, 15 percent of losses, we get 63,2 kWh. The remaining 2 kWh is probably battery heating, electronics work. If the manufacturer indicated a total capacity (“77,4 kWh”) and a net power of about 72 kWh, the loss would be almost 28 percent. This is not an unrealistic value, perhaps it could have been obtained during frosts, when the cells need to be strongly heated, but today we will venture to say that InsideEVs wrong.

The fact that we are dealing with an institute or a university can be seen from the contents of the hall. A large number of internal combustion engines are located in the rear part, next to it you can see the battery compartment cover of the Hyundai Kona Electric with a characteristic protrusion in the rear part. Hyundai Nexo's three bulky hydrogen tanks are also a little closer. It is worth noting that although the tanks are a little narrower (they lie sideways), they take up more vertical space in the car (trunk floor, cabin floor):

The entire entry is for those who wish:

And this is how the battery is installed in cars built on the E-GMP platform, including the Hyundai Ioniqu 5:

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