Graphite Crucible for Lithium Battery Material Sintering
Product Overview
Jincheng graphite crucibles for lithium battery material sintering are high-purity, corrosion-resistant graphite containers designed for the calcination and sintering of lithium battery cathode materials such as LFP, NCM, and NCA. These crucibles provide excellent thermal conductivity and chemical stability during high-temperature material processing.
Our lithium battery sintering crucibles are manufactured from high-density, fine-grain isostatic graphite that resists attack from lithium-containing compounds at temperatures up to 1200°C. Custom sizes and shapes are available to match different roller kiln and pusher kiln configurations.
Key Features
- High purity graphite with low ash content to prevent material contamination
- Excellent thermal conductivity for uniform heating of cathode materials
- High corrosion resistance against lithium and transition metal compounds
- High temperature stability up to 1200°C in air atmosphere
- Dimensional consistency for automated kiln loading systems
- Smooth inner surface for easy material removal and cleaning
- Custom sizes available for various kiln configurations
- Long service life compared to ceramic crucibles for battery material processing
Technical Specifications
| Parameter | Value |
|---|---|
| Material | High density isostatic graphite |
| Density | 1.75 - 1.85 g/cm3 |
| Ash Content | < 100 ppm (battery grade) |
| Shore Hardness | 60 - 75 HS |
| Compressive Strength | 80 - 120 MPa |
| Thermal Conductivity | 100 - 140 W/m·K |
| Max Working Temperature | 1200°C (air atmosphere) |
| Crucible Wall Thickness | 3 - 10 mm (custom) |
| Capacity | 0.5 L - 50 L (custom) |
| Tolerance | ±0.5 mm |
Applications
- Lithium iron phosphate (LFP) cathode material calcination
- NCM (nickel-cobalt-manganese) cathode material sintering
- NCA (nickel-cobalt-aluminum) cathode material production
- Lithium battery anode material processing
- Solid-state battery material research and development
- Advanced energy storage material pilot production
Why Choose Jincheng Graphite Crucibles?
- Battery-grade high purity graphite to prevent harmful impurities in cathode materials
- Corrosion-resistant formulation for extended crucible life in lithium compound environments
- Custom manufacturing to match your specific kiln and process requirements
- Experience with major battery material producers in China and internationally
- Competitive pricing as a direct graphite component manufacturer
- Fast delivery - standard crucibles within 1 week, custom within 2 weeks
- Technical support for crucible design optimization and process improvement
- Global shipping to battery material manufacturers and research institutes worldwide
Frequently Asked Questions
Q1: What is the typical service life of your crucibles?
A: Crucible life depends on temperature, atmosphere, and material type. Under typical LFP sintering conditions (700-800°C, air), crucibles last 50-100 cycles.
Q2: Can you manufacture crucibles with specific dimensions?
A: Yes, we manufacture custom crucibles based on your kiln specifications and material volume requirements. Please provide your dimensional requirements for quotation.
Q3: Do you offer ultra-high purity graphite options?
A: Yes, we offer battery-grade graphite with ash content below 100 ppm for the most demanding cathode material applications.
Q4: How do you compare to ceramic crucibles?
A: Graphite crucibles have much better thermal conductivity and thermal shock resistance than ceramic crucibles, leading to more uniform material heating and longer service life.
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