| %% Parameters for Lithium-Ion Battery Pack cooling example | |
| % Battery cooling example setup and workspace variables | |
| % Copyright 2020-2026 The MathWorks, Inc. | |
| coolantTemp=298.15; % Coolant inlet T in K | |
| ambient=298.15; % Ambient temperature in K | |
| FlwT=coolantTemp-ambient; | |
| initialPackSOC=0.995; % Pack intial SOC (-) | |
| FlwR=1; | |
| %% Lookup Table Points | |
| T_vec=[273.15, 298.15, 323.15]; % Temperature vector T [K] | |
| AH=20.5; % Cell capacity [Ahr] | |
| % [14, 20, 21] | |
| SOC_vec=[0, .25, .75, 1]; % Cell state of charge vector SOC [-] | |
| Flowrate_vec=[0 0.01 0.02 0.03 0.04 0.05]; % Flowrate vector L [kg/s] | |
| % | |
| %% Cell Electrical | |
| V0_mat=[3.2, 3.1, 3.14; 3.25, 3.27, 3.3; 3.28, 3.31, 3.34; 3.33, 3.5, 3.59]; % V0=f(SOC,T), cell OCV [V] | |
| R0_mat=[.03, .015, .002; .04, .017, .008; .039, .012, .006; .027, .013, .021]; % R0=f(SOC,T), cell Ohmic Resistance [Ohm] | |
| Ndisc=100;delV0=0;delR0=0;delAH=0; % No change with cycling, not used in simulation | |
| % | |
| %% Cell Thermal | |
| MdotCp=500; % Cell thermal mass (mass times specific heat [J/K]) | |
| K_cell=0.8; % Cell thermal conductivity [W/(m*K)] | |
| h_cell=2.5; % Heat transfer coefficient to ambient [W/(m^2*K)] | |
| % | |
| %% Module Electrical | |
| cell_H=0.20; % Cell height [m] | |
| cell_W=0.12; % Cell width [m] | |
| cell_T=0.02; % Cell thickness [m] | |
| %% Module 1,2,3 : same in construction | |
| % Module Electrical | |
| Ns=5; % Number of series connected strings | |
| Np=2; % Number of parallel cells in string | |
| Rext=1e-3; % Additional resistance - busbars, cables, cell tabs [Ohm] | |
| coolantQ=zeros(3,6,Ns*Np); % Module A cooling [W/K]; vector of size (T,L,Ns*Np) | |
| for i=1:Ns*Np | |
| coolantQ(:,:,i)=(1+0.2*(i-Ns*Np/2)/(Ns*Np/2))*[0 .3 .6 .9 1.2 1.5;0 .3 .6 .9 1.2 1.5;0 .3 .6 .9 1.2 1.5]; | |
| end | |
| extHeat=zeros(1,Ns*Np); | |
| % Cell-to-Cell Variation | |
| AhrVar=ones(1,Ns*Np); % No variation | |
| R0Var=ones(1,Ns*Np); % No variation | |
| cellT_ini=ambient*ones(1,Ns*Np); % Initial cell temperature [K] | |
| cellSOC_ini=initialPackSOC*ones(1,Ns*Np); % Initial cell SOC (-) | |
| % | |
| %% Module 4 : it is different from Modules 1,2,3 | |
| % Module Electrical - module 4 | |
| Ns4=6; % Number of series connected strings | |
| Np4=2; % Number of parallel cells in string | |
| Rext4=2.3e-3; % Additional resistance - busbars, cables, cell tabs [Ohm] | |
| coolantQ4=zeros(3,6,Ns4*Np4); % Module A cooling [W/K]; vector of size (T,L,Ns*Np) | |
| for i=1:Ns4*Np4 | |
| coolantQ4(:,:,i)=(1+0.1*(i-Ns4*Np4/2)/(Ns4*Np4/2))*[0 .3 .6 .9 1.2 1.5;0 .3 .6 .9 1.2 1.5;0 .3 .6 .9 1.2 1.5]; | |
| end | |
| extHeat4=zeros(1,Ns4*Np4); | |
| % Cell-to-Cell Variation - module 4 | |
| AhrVar4=ones(1,Ns4*Np4); % No variation | |
| R0Var4=ones(1,Ns4*Np4); % No variation | |
| cellT_ini4=ambient*ones(1,Ns4*Np4); % Initial cell temperature [K] | |
| cellSOC_ini4=initialPackSOC*ones(1,Ns4*Np4); % Initial cell SOC (-) | |