A simulation method for mass transfer process of lithium battery separator extraction process and related device

By establishing a coupling model of sound field, multiphase flow, cavitation, turbulent viscosity and component transport, the problem of insufficient coupling between sound field and cavitation flow field in the existing technology is solved, and accurate simulation and optimization of lithium battery separator extraction process is achieved.

CN122242348APending Publication Date: 2026-06-19BEIJING UNIV OF TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF TECH
Filing Date
2026-03-16
Publication Date
2026-06-19

AI Technical Summary

⚠Technical Problem

Existing technologies cannot fully consider the coupling between the acoustic field, cavitation flow field and component mass transfer, which means that numerical simulation methods for lithium battery membrane extraction processes cannot effectively guide the optimization of ultrasonic parameters and processes.

⚗Method used

A coupled model of sound field, multiphase flow, cavitation, turbulent viscosity and component transfer is established. The vibration behavior of the ultrasonic transducer is accurately simulated by custom functions and dynamic mesh technology, realizing a comprehensive coupled simulation of sound field, cavitation flow field and component mass transfer.

🎯Benefits of technology

It accurately describes the ultrasound-assisted extraction process, provides reliable numerical guidance, optimizes ultrasound parameters and process layout, and reduces process development costs and time.

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Abstract

This application discloses a simulation method and related apparatus for the mass transfer process in lithium-ion battery membrane extraction technology. The method includes: acquiring basic geometric modeling data for the lithium-ion battery membrane extraction process; constructing a geometric model of the lithium-ion battery membrane extraction process; configuring material domain parameters and setting boundary constraints for the geometric model; establishing an acoustic field model based on the geometric model with material properties and boundary constraints, using custom functions and dynamic meshing techniques; establishing a coupled model of acoustic field, multiphase flow, cavitation, turbulent viscosity, and component transfer based on the acoustic field model; solving the coupled model; and analyzing and evaluating the simulation results based on the coupled solution simulation results to obtain the simulation result analysis and parameter evaluation results. This application can comprehensively consider the mutual coupling of acoustic field, cavitation flow field, and component mass transfer, achieving an accurate description of the ultrasound-assisted extraction process and providing reliable numerical guidance for optimizing ultrasonic parameters and extraction process layout.
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