From WeberAuto.
Join me as I assemble a cell module from a Kia EV9 626-volt high-voltage battery. Learn which parts are involved and how they are connected.
CLARIFICATION:
I did not mean to imply that I could drive for 1 hour using 1 pouch cell; I was talking about the capacity of each cell and the entire battery, but I should have mentioned the voltage needed at that point in the video.
My personal car has a 355.2-volt (nominal) battery and uses 60 amps at 70 mph, for a total of 21.3 kW per hour.
I estimate the Kia EV9 with a 551.76-volt (nominal) battery uses about 38.6 amps at 70 mph, for 21.3 kW per hour. The Kia with a 98.985 kWh (nominal) 180 Ah battery should be able to drive about 4.6 hours at 70 mph, for a driving range of 322 miles.
TIMELINE:
0:00 Introduction
0:34 Pouch cells from SK On
1:12 Cell nominal voltage
1:36 Maximum cell voltage at 100 percent state of charge (SOC)
1:57 Cell Amp*hour rating
2:30 How the amp*hours are increased with multiple parallel cells
3:15 Cell module configuration
4:05 How the voltage is increased with multiple series cell packs
5:00 Module voltage with four groups of three parallel call packs
5:55 Battery with 38 modules wired in series
6:26 Maximum battery voltage at 100 percent SOC (Extended Range Battery)
6:40 Maximum battery voltage at 100 percent SOC (Standard Range Battery)
7:18 Installing the side cover with temperature sensors and voltage sensing lines
9:33 Installing the steel outer side covers
10:10 Installing the upper cover
10:43 Installing the end caps
11:31 The assembled cell module
11:45 How the modules are connected in series
12:15 The bottom of the cell module and the thermal interface material (TIM)
13:51 Where the cell modules are located inside the battery housing
14:20 Battery components
15:12 Summary and additional educational opportunities
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Weber State University (WSU) Davis Campus – Automotive Technology Department – Hybrid and Electric Vehicles Lab.
We teach current vehicle technologies to our automotive students at Weber State University and online. For more information, visit: https://www.weber.edu/automotive
This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see https://www.weber.edu/automotive/J_Kelly.html
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