A method for determining the infiltration process duration of a lithium battery based on multi-scale simulation
By constructing a pore structure model of lithium batteries using multi-scale simulation technology, the electrolyte wetting process was simulated, solving the problem of determining the wetting time of lithium batteries. This enabled efficient and accurate determination of the wetting time, avoiding destructive operations and improving production efficiency and battery performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEFEI GUOXUAN HIGH TECH POWER ENERGY
- Filing Date
- 2026-04-28
- Publication Date
- 2026-07-17
AI Technical Summary
The existing methods for determining the immersion time of lithium batteries lack scientific basis, have large errors, and rely on destructive disassembly and baking weighing, resulting in low production efficiency, high cost, and complicated operation.
Using multi-scale simulation technology, a three-dimensional model of the pore structure of the electrode and the separator is constructed. Single-phase steady-state simulation and electrolyte-displaced air two-phase transient simulation are performed to simulate the electrolyte wetting process in the cell. The permeability and saturation are calculated by combining the Brooks-Corey model to determine the wetting process time.
Precisely determining the immersion process time eliminates the need to disassemble the battery cells, reducing production costs, improving production efficiency, and ensuring battery performance.
Smart Images
Figure CN122413718A_ABST