Tesla - Battery Design

In battery pack design we have to look at Tesla as they proved an electric vehicle could be a credible alternative to the internal combustion engine and they have lead the field for more than 2 decades.

2008 Roadster

The idea of using commodity battery cells as seen in laptops was ground breaking.

2012 Model S

Initially 3 battery pack sizes, mounted under the vehicle floor and giving performance and range.

Supercharge Network

Model X

Powerwall

A range of products to store energy from solar panels in the home.

2016

2170 Cell Format

Announced in mid 2016 and began volume production in January 2017. This cell goes into the Model 3 battery from launch.

21700 Model 3
- Tesla Fast Charge Thermal Model – a look at coolant flow options and impact on cell to cell maximum temperature difference.
- Tesla Model 3 Cell Busbar Failures – a failure mode of this design when the cells are arranged to point downwards is that condensation can corrode the electrical connection on the cell.

2020

4680 Cell Format

Tesla Battery Day – September 2020, YouTube

The move to the 21700 format cylindrical cell was made with the Model 3 and this was again the first vehicle to take the 4680 cylindrical format cell.

2022 Model Y 4680 – gradually piecing together data on this battery
- 4680 cell design and Tesla 4680 Cathode Porosity

2022

Semi

2022 Tesla Semi Specifications – a look at the vehicle specs so that we can then calculate the battery parameters

Cybertruck

Pre-launch look at the data around this vehicle – TESLA CYBERTRUCK and Battery Pack
Tesla Cybertruck Battery Structure – the battery pack is the complete floor and all cross-car-beams.
Tesla Cybertruck Battery – looking inside at the modules and structure.
Cybertruck Battery Pack Structural Analysis – a different look at the structure and design.