一种锂离子电池正极浆料分散性的多指标协同诊断方法
By employing a multi-index collaborative diagnostic method, combining thixotropic ring area, four-probe resistivity, electrode resistivity, and peel strength, the accuracy problem of lithium-ion battery cathode slurry dispersion diagnosis in existing technologies has been solved, enabling precise diagnosis and process optimization guidance across the entire process in multiple dimensions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2026-05-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies lack a method to accurately diagnose the dispersion state of lithium-ion battery cathode slurry from multiple dimensions. Evaluation methods based on single indicators are easily affected by material systems and process conditions, leading to distorted results and failing to fully reflect the dispersion state of the slurry from liquid to solid coating.
A multi-index synergistic diagnostic method was adopted, including shear rate scanning to obtain the thixotropic ring area immediately after pulping, coating electrode resistivity, electrode resistivity and peel strength test of four probes, and comprehensive diagnosis of the true dispersion state of the pulp through normalization and relative standard deviation analysis.
It achieves accurate diagnosis across the entire process and multiple dimensions, can identify and guide the solution of potential process problems, provides quantitative directions for pulping process optimization, eliminates the one-sidedness and misjudgment of single index evaluation, and has universality.
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Figure CN122409759A_ABST