Description
1. Principle of Electrode Wetting
The Lucas–Washburn Equation is commonly used to describe the dynamic of liquid absorption in electrode pores, as represented by the equation below:
- r represents the radius of the capillary (m),
- σ represents the surface tension of the imbibition fluid (N/m),
- η represents the viscosity of the imbibition fluid (Pa*s),
- θ represents the contact angle of the wet phase (°),
- h represents the liquid suction height (m),
- t represents the liquid suction time,
- cr represents a fixed value, called the formal radius.
2. Applications
- Electrolyte: Performance Evaluation
- Electrode: Consistency Assessment
- Optimization of material: Electrode Surface Treatment Processes
2.1 Capillary Wetting System-EWS Series
Key Features:
- Equipped with a high-precision vision testing system for stable and efficient testing repeatability.
- In-situ real-time characterization of electrolyte wetting rateon negative electrode sheets of lithium-ion batteries.
- Applicable Samples: Negative electrode sheets.
- The greater the compacticion of the electrode sheet, the lower the porosity, resulting in poorer electrolyte wetting.
2.2 Weight Wetting System-ETS Series
Key Features:
- Equipped with a high-precision weighing system for stable and efficient testing repeatability.
- In-situ real-time characterization of electrolyte wetting rate on positive and negative electrode sheets of lithium-ion batteries.
- Applicable samples: Anode electrodes & Jelly Cells
2.3. Height Wetting System-CHT Series
Key Features:
- Equipped with a high-precision vision acquisition system for stable and efficient testing repeatability.
- In-situ real-time characterization of electrolyte wetting rate on positive and negative electrode sheets of lithium-ion batteries.
- Applicable samples: Anode electrodes
Applications
1. Capillary Wetting System-EWS Series
- The greater the density of the electrode, the lower the porosity and the worse the electrolyte wettability.
2. Weight Wetting System-ETS Series
- Trimming three sets of negative electrode sheets from the same batch (65*70mm)
3. Height Wetting System-CHT Series
- The slopes of the 3 tested electrodes are consistent with each other, so is the wetting consistency of their electrolytes.
Video