一种基于薄液膜电极的燃料电池离聚物评价方法及应用
By constructing a thin liquid film electrode in a fuel cell, the problem of evaluating the three-phase interface construction and hydration control of ionomers under actual operating conditions in the prior art is solved. This enables independent and quantitative evaluation of ionomer performance and improves the controllability and representativeness of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING UNIV
- Filing Date
- 2026-05-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to effectively evaluate the three-phase interface construction ability, local hydration state regulation effect, and intrinsic ion conduction characteristics of ionomers in actual membrane electrode catalytic layers in fuel cells. Most existing methods are conducted under ideal conditions, which cannot reflect the film-forming ability and interface construction ability of ionomers under actual operating conditions.
An evaluation method based on thin liquid film electrodes is adopted. A thin liquid film is constructed on the surface of the working electrode to form a gas-liquid-solid three-phase interface. Electrochemical tests are then performed to evaluate the performance of the ionomer. This includes dispersing the catalyst and the ionomer to be tested to form an electrode slurry, assembling the working electrode, constructing the thin liquid film, and performing electrochemical tests.
This enables independent and quantitative evaluation of the three-phase interface construction ability, hydration regulation ability and ion conduction performance of ionomers under near-real-world conditions, reducing the influence of coupling factors and improving the representativeness and controllability of the test.
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Figure CN122259684B_ABST