Item No.: XW-PRCD3100
Application: Lithium (sodium) positive and negative electrode powders (LCO/NCM/LFP/Graphite, etc.).
Order(MOQ): 1 set;
Payment: T/T, Western Union, Paypal, L/C;
Product Origin: China;
Lead Time: 15days;
Note: XIAOWEI factory supports OEM.

Products Description

Introduction:

XW-PRCD3100 combined with high-precision pressure control,thickness and resistance testing system, free choice of four-probe and two-probe method. Accurately test the resistivity and compaction density of powders for material research and development and batch stability monitoring of powder materials.

Performance:

1. Ultra-wide pressurization range (maximum 350MPa) and ultra-wide resistance measurement range (200MΩ);

2. When measuring resistance, two-probe and four-probe dual principles can be switched freely;

3. Fully automatic test software, free parameter setting, one-click start;

4. Real-time monitoring and output of pressure, pressure, ambient temperature, ambient humidity, thickness, resistance, resistivity, conductivity, compaction density and other parameter curves, and automatic saving of test data.

5. Multiple powder test modes: pressurization, single-point pressure relief, steady-state pressure relief;

6. Equipped with standard thickness blocks and resistance blocks calibrated by a third-party metrology institute.

Application:

1. Lithium (sodium) positive and negative electrode powders (LCO/NCM/LFP/Graphite, etc.).

2. Conductive agents.

2. Instrument Principles

Measurement range:

* Pressure: up to 350MPa

* Resistance: 1μΩ~200MΩ

3. Test Parameters

Stress, pressure, thickness, compaction density, resistance, resistivity, conductivity.

4. Test Methods

Put a certain amount of powder (1~2g) into the mold and vibrate it, then put the mold into the testing chamber and start the testing of thickness and resistance changes during the compression process.

5.Why Compaction Density instead of Tapped Density?

Result Analysis:

Using LCO powder as an example, when the compaction density ofthe modified powder sample is less thar3.87g/cm’ (pressure <75MPa), its conductivity is lower than that of the unmodified powder sample.However, when the compaction density exceeds 3.87g/cm’ (pressure>75MPa),the conductivity ofthe modified powder beeinsto surpass that of the unmodified powder, and the conductivity improves significantly as the compaction increases

Conclusion: When testing the conductivity of powder, the compaction density should be close to the actual compaction oithe powder in the electrode.

6. Features:

1) High accuracy pressure system : Driven by servo motor.
2) High accuracy displacement sensor : Precisely measure the variation of thickness.
3) Specific clamp for resistivity & Compact density test of powder samples : Simplify the process of the powder loading and cleaning.
4) Multi-functions : One-stop data collection of key parameters of pressure, resistance, thickness, temperature and humidity with high reliability, to provide a complete traceability for each result.
5) Automatic measurement : Providing flexible measurement modes for different kinds of samples, and all the process parameter setting are integrated into a simple software control interface, with one-button to start a measurement
6) Integrated design :Integration of control and measurement systems for pressure, resistivity and thickness control and measurement systems.

7. XW MS Software

1) Pressure can be set willfully within the extent of max pressure.
2) The resistivity under different pressure can be measured in succession with controllable rate and interval of pressure scan.
3) Different data analysis curves can be generated, including resistivity-pressure curve, resistivity-thickness curve, Compact density-pressure curve, and pressure-thickness curve.
4) Two resistance data collection modes: interval time mode or automatic steady state condition determine mode.
5) Data statistical analysis functions.

6) Automatic generation of reports with the value of resistivity (or conductivity) and Compact density.

8. Applictions:

8.1 Cathode Materials under Variable Pressure Mode

1) Parameter: Under 80MPa pressure

2) Resistivity: LCO>LRM>LFP≈LRM;
3) Compaction Density: LCO>NCM>LFP>LRM

4) Conclusion: The compaction density shows minimal diference under high-pressure conditions but varies unde(ow-pressure conditions. This is mainly because samples with a wide particle size distribution have poor flow anc*earrangement characteristics, leading to higher porosity and lower compaction density under low pressure.

8.2 Lithium-rich Materials Under Variable Pressure Mode

1) Analysis of the lithium-rich material with different modification methods.

2) The resistivity of lithium-rich materials can be reduced by regulating the surface structure!

8.3 Silicon-based materials

Test Condition: Si content: 3%, 6% and 10%(SiC-1/Sic-2/sic-3)

Conclusion：1) Resistivity: Sic-1< Sic-2< SiC-3

2) Compaction density: Sic-1>SiC-2> Sic-3

Test condition: Sintering temperature of SiO

Materials: Si0-1< Si0-2<Si0-3<Si0-4

Conclusion:

Resistivity: Sic-1>Si0-2>Si0-3> Si0-4

Compaction density:Sic-l>Si0-2>Si0-3>Si0-4

8.4 Anode & Cathode Materials for Sodium ion Battery

Conductivity evaluation of anode & cathode powders for sodium ion batteries : Effectively evaluate the conductivity ane compaction properties of Prussian blue and hard carbon under diferent modification conditions

8.5 Elastic Modulus

1) LCO under Steady-state Mode

LCO Particle Size:

LCO-1: 5μm-30μm
LCO-2: 5μm-15μm
LCO-3: 10μm-45μm

LCO-4: 5μm

Conclusion: During the compaction, plastic deformation typically accounts for approximately 90% of the total deformation.

Powders of smaller particle size(LCO-4) exhibit a more noticeable reboundness, and its proportion of Plastic energy consumption is relatively lower as well.

2) Carbon Materials under Pressure Relief & Steady-state Mode

Conclusion: The conductivity of graphite is greater than that of hard carbon, so is its powder compressibility.

Technical Parameters

Model	PR CD1000	PRCD2000	PRCD3000	PRCD1100	PRCD2100	PRCD3100
Stress & Pressure	Stress up to 1T& Pressure 70 MPa			Stress up to 5T & Pressure 350 MPa
Test Principle	2-probe	4-probe	2-probe & 4-probe	2-probe	4-probe	2-probe & 4-probe
Applicable Samples	Cathode Samples	Anode Samples	Anode & Cathode Samples	Cathode Samples	Anode Samples	Anode & Cathode Samples
Resistance Range	1uQ~20 MQ			1μQ~1200MQ	1μQ~200MΩ
Sensor Resolution & Accuracy	Thickness Sensor: Resolution 0.5 μm,Accuracy±10 μm
	Stress Sensor: Resolution 0.1 KG, Accuracy±0.3%F.S.
	Resistance Sensor: Resolution 0.1 μQ, Accuracy±0.1%F.S.
Test Parameters	Thickness, Compaction Density Resistance, Resistivity,Conductivity Stress, Pressure Temperature & Humidity
Other Specifications	1.Mold/Jig Diameter:10mm/13mm/16mm 2. LWH:320400800(mm) 3.Instrument Power:450W 4.Instrument Net Weight:85KG			1.Mold/Jig Diameter: 10 mm/13 mm/16mm 2.LWH:3705751140(mm) 3.Instrument Power: 2100W 4 . Instrument Net Weight: 250KG
Test Modes & Functions	Multi-pressure Test Mode: Suitable for testing of Compaction Density & Resistance without fixed steppings Variable Pressure Test Mode: Suitable for testing of Compaction Density & Resistance with fixed steppings Pressure Relief Test Mode: Suitable for testing of Rebounced Thickness Curve Steady -state Test Mode: Suitable for testing of Stress-Strain Curve & Elastic Modulus