The Iveco S-eWay covers a range of trucks using a battery pack architecture that allows multiple packs to be arranged in parallel.
The Iveco brochure [1] states that the “Microwast Battery have been designed for a lifetime of 12 years and 1.2 Mio km”.
The basic battery pack unit is 70kWh and these are then configured in parallel with either 4, 5 or 7 units being used.
The SoC window is 86%, quite a large window for an NMC pouch cell that Microvast claims has a cycle life of up to 7000 cycles [3] depending on the cell selected.
The nameplate for the battery unit used in the rigid chassis shows a rated energy of 692825 Wh
There has to be a decimal point in this and hence 69.3 kWh
With a mass of 400 kg this means the specific energy is 173 Wh/kg
Here we have a problem as the building block used for the semi has grown to 82kWh from the 70kWh used in the earlier version. Is this an upgrade that will be back engineered into the rigid chassis trucks?
The initial 2024 offering for the Semi has a configuration of 9 packs in parallel giving a total of 738kWh total and an estimated 635kWh usable.
This means that each of the 9 packs has a total of 82kWh. Hence a different building block from that used in the rigid trucks.
Each of the packs weighs 485kg and hence this means a specific energy density of 169Wh/kg at pack level.
This post has been built based on the support and sponsorship from: Thermo Fisher Scientific, Eatron Technologies, About:Energy and Quarto Technical Services.
References
- Electric DNA, Iveco Brochure
- Presentation of the Iveco S-eWay: Storm and Stress, Truck Experten
- Cell Data, Microvast
See also: Benchmarking Battery Packs