Abaqus can solve the following types of electrochemical analyses:
- Coupled thermal-electrochemical analysis
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The coupled thermal-electrochemical procedure is intended for the
analysis of battery electrochemistry applications that require solving
simultaneously for temperature, electric potential in the solid
electrode, electric potential in the electrolyte, concentration of ions
in the electrolyte, and concentration in the solid particles used in the
electrodes. In this procedure, the different fields are solved without
any knowledge about the stress/deformation states. For more information,
see Coupled Thermal-Electrochemical Analysis.
- Fully coupled thermal-electrochemical-structural
analysis
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The fully coupled thermal-electrochemical-structural procedure is used to
simultaneously solve for displacements, temperature, electric potential
in the solid electrode, electric potential in the electrolyte,
concentration of ions in the electrolyte, and concentration in the solid
particles used in the electrodes. In this procedure, the thermal field
and mechanical fields can affect each other. In addition, the
concentration in the solid particles used in the electrodes can affect
the mechanical fields through eigenstrains caused by particle swelling
during the charge/discharge cycle in the battery. For more information,
see Fully Coupled Thermal-Electrochemical-Structural Analysis.
- Fully coupled thermal-electrochemical-structural–pore pressure
analysis
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The fully coupled thermal-electrochemical-structural–pore pressure
procedure is used to simultaneously solve for displacements, pore fluid
pressure that governs electrolyte flow, temperature, electric potential
in the solid electrode, electric potential in the electrolyte,
concentration of ions in the electrolyte, and concentration in the solid
particles used in the electrodes. In this procedure, the thermal field
and mechanical fields can affect each other. In addition, the
concentration in the solid particles used in the electrodes can affect
the mechanical fields through eigenstrains caused by particle swelling
during the charge/discharge cycle in the battery. The fluid pressure and
flow velocities in the electrolyte can be affected by the mechanical
fields, gravity, and particle swelling during the charge/discharge cycle
in the battery. For more information, see Fully Coupled Thermal-Electrochemical-Structural–Pore Pressure Analysis.
In addition to the procedures mentioned above to model porous electrodes, you can also
model solid electrodes in a battery. Solid particles are not modeled explicitly for a
solid electrode. Instead, the electrochemistry is defined on the interface between the
solid electrode and the porous separator using surface-based loads or surface-based
interactions. This approach results in a computationally efficient solution. All of the
procedures listed above support this approach for modeling solid electrodes. For more
information, see Modeling Solid Electrodes in Lithium Metal Batteries.