Description
1. Product Introduction
1.1 Background
Testing the crushing strength of battery material particles can be used to evaluate the pressure resistance of the material and guide the rolling process. Materials with high mechanical strength will have better subsequent cycle stability.
1.2 Testing Object
Lithium battery positive and negative electrode materials(Positive: polycrystalline ternary; lithium-rich material; Negative: silicon-based, hard carbon, etc.; solid electrolyte)
1.3 Test Particle Size
single particle size: 5~50 um
1.4 Equipment Composition
2. Testing Program
2.1 Testing Method
Disperse the powder into the liguid., Add it dropwise to the glass slide. Locate the single particle under an optical microscope. Control the pressure head to press down at a constant speed. Collect the force and displacement curves during the particle compression process and calculate the mechanical properties of the single particle.
2.2 Test Parameters
- Magnification: up to 1200 times;
- Pressure test range: 0-100 mN;
- Pressure test accuracy: ±0.1 mN;
- Minimum displacement unit: 10 nm;
- Data collection frequency: 1000HZ;
- Comply with national standard GB/T 43091-2023″Powder Compressive strength Test Method”
Two silicon-carbon materials with different electrode compaction.
