Faster-Than-Real-Time Simulation of Lithium Ion Batteries with Full Spatial and Temporal Resolution

Table 2

Values of various parameters for the Li_𝑥C₆-Li_𝑦Mn₂O₄ battery simulated in the present work.

Parameter	Negative electrode	Separator	Positive electrode
Geometry and mesh
Thickness, 𝐿𝑛,𝐿𝑠,𝐿𝑝	50 𝜇m	25.4 𝜇m	36.4 𝜇m
Active particle radius, 𝑟𝑠	1 𝜇m	N/A	1 𝜇m
Electrolyte volume fraction, 𝜀𝑒	0.332	0.5	0.33
Active particle volume fraction, 𝜀𝑠	0.58	N/A	0.5
Number of control volumes (nominal)	50	25	36
Initial state of battery
Maximum solid phase concentration, 𝐶𝑠,max	16.1×10^3 mol/m^3		23.9×10^3 mol/m^3
Stoichiometry at 0% state of charge, 𝑥,𝑦	0.126	N/A	0.936
Stoichiometry at 100% state of charge, 𝑥,𝑦	0.676	N/A	0.442
Electrolyte concentration	1.2×10^3 mol/m^3	1.2×10^3 mol/m^3	1.2×10^3 mol/m^3
Kinetic and transport properties
Kinetic constant, 𝑘0	1.38×10^−4; (A/m^2)·(m^3/mol)^3/2	N/A	0.64×10^−4; (A/m^2)·(m^3/mol)^3/2
Charge transfer coefficients, 𝛼𝑎,𝛼𝑐	0.5, 0.5	N/A	0.5, 0.5
SEI film resistance, 𝑅SEI	0	N/A	0
Lithium ion diffusion coefficient in solid phase, 𝐷𝑠	2×10^−16 m^2/s	N/A	3.7×10^−16 m^2/s
Solid phase electrical conductivity, 𝜎	100 S/m	N/A	10 S/m
Lithium ion diffusion coefficient in electrolyte, 𝐷𝑒	2×10^−10 m^2/s	2×10^−10 m^2/s	2×10^−10 m^2/s
Electrolyte phase ionic conductivity, 𝜅	(15)	(15)	(15)
Transference number, 𝑡+	0.363	0.363	0.363
Open circuit potential	(16)	N/A	(16)
Density	2500 kg/m^3	1200 kg/m^3	1500 kg/m^3
Thermal conductivity	5 W/m/K	1 W/m/K	5 W/m/K
Specific heat capacity	700 J/kg/K	700 J/kg/K	700 J/kg/K