How do I get all specifications to build battery model

I am very new to battery and battery modeling. So I have a very basic question, I went through first example, and not able to figure out that if I have to build a model for a new battery, where will I get all these specifications paramters required to build battery model in following four functions as an example (I checked battery datasheet, it does not provide these many details):

1) cellGeometry.Radius = simscape.Value(0.0105, "m");

2) cellGeometry.Height = simscape.Value(0.07, "m");

3) batteryParallelAssembly = ParallelAssembly(Cell = batteryCell,...

NumParallelCells = 4, ...

Rows = 4, ...

Topology = "Square", ...

ModelResolution = "Detailed");

4) batteryModule = Module(ParallelAssembly = batteryParallelAssembly,...

NumSeriesAssemblies = 13, ...

InterParallelAssemblyGap = simscape.Value(0.005,"m"), ...

ModelResolution = "Detailed", ...

AmbientThermalPath = "CellBasedThermalResistance")

Thanks,

Manish

Answer 1

[Itshak]

Hey Manish,

There are predominantly 2 sizing formats for cylindrical cells, the most popular format for the LCO, NCA, and NMC battery cells has been the 18650. Panasonic partnered with Tesla to create a new EV battery, they developed the unique 21700 cell format. I'm sure pouch cells or any other shape you would like to work with also has such Standard Dimensions.

As for the topology and arrangement I've never found any data regarding it from any popular manufacturer due it affecting the charge density of the battery and being valuable information. There are research papers on ideal packing fractions for batteries though and might help to look into.

I've mentioned some data sets that use 18650 below.

PCoE data set

Standford Fast Charging Dataset