Introduction
If you’re a graphite anode material manufacturer, you’ve likely encountered these challenges:
- Why are customers so sensitive to a 0.5% difference in fixed carbon content?
- Can a 20% increase in purification costs truly deliver corresponding market returns?
- Power battery manufacturers require 99.5%+ purity—where are the technical barriers?
The answer lies in a seemingly simple yet profoundly impactful parameter—Fixed Carbon Content.
This isn’t an abstract chemical metric, but rather your “admission ticket” to first-tier power battery supply chains. According to the European Carbon and Graphite Association (ECGA) report, mainstream automotive OEMs universally require anode material fixed carbon content ≥99.5% with strict batch-by-batch testing.
This article speaks with data, drawing from the latest research in authoritative journals including RSC, ScienceDirect, and MDPI, to quantify how fixed carbon content impacts four core battery performance metrics:
- Battery Capacity & Initial Efficiency – How each 1% purity difference affects lithium salt consumption
- Cycle Life & SEI Film Stability – Why impurities are the “invisible killers” of battery degradation
- Rate Performance & Fast Charging Capability – High-purity graphite’s competitive advantage in the fast-charging race
- Safety Performance – The quantified relationship between material purity and thermal runaway risk
Whether you’re a manufacturer upgrading purification processes or a decision-maker evaluating equipment investments, this article provides actionable technology roadmaps and investment return analysis.
Executive Summary
Core Takeaways: Fixed carbon content is the critical metric determining graphite anode material performance. Based on authoritative international research data, this article quantifies the four major impacts of fixed carbon content on batteries:
- Capacity & Initial Efficiency: 99.5%+ purity can increase initial coulombic efficiency from 80% to over 90%
- Cycle Life: High-purity graphite maintains 85-90% capacity retention after 500 cycles, while 95% purity only achieves 70%
- Fast Charging Performance: At 5C rate, high-purity graphite achieves 70-80% capacity retention
- Safety Performance: Purity ≥99.5% helps pass rigorous UN 38.3 and IEC 62133 testing
For manufacturers targeting the power battery market, we recommend setting fixed carbon content ≥99.5% as the target. While purification costs increase 20-30%, this can save 5-8% in lithium salt consumption. Considering market certification and ramp-up cycles, the complete investment payback period is typically 24-36 months.
Four Key Impacts of Fixed Carbon Content on Anode Performance
Fixed carbon content isn’t just a numerical metric—it directly determines whether lithium-ion batteries “work well and last long.” For anode material manufacturers, understanding how this metric affects battery performance is key to optimizing product formulations and processes.
Impact One: Battery Capacity and Initial Efficiency
Scientific Principles
Graphite anodes have a theoretical capacity of 372 mAh/g (based on LiC₆ stoichiometry, where one lithium ion can intercalate per six carbon atoms), but commercial products typically achieve 355-365 mAh/g. When impurities exist in graphite, these non-carbon substances occupy lithium-ion intercalation sites, directly reducing usable capacity.
Impurity impact mechanisms on capacity include:
- Physical Occupation: SiO₂, Al₂O₃, and other impurities occupy interlayer space
- Side Reactions: Metal impurities react with electrolyte, consuming active lithium
- Reduced Conductivity: Non-conductive impurities hinder electron transport
According to OSTI research, irreversible capacity loss (ICL) directly correlates with graphite surface area and impurity content. Typical natural graphite first-cycle ICL ranges from 60-100 mAh/g, representing 8-12% of total charge capacity. Studies show that through high-temperature purification to remove impurities, initial coulombic efficiency can improve from 80% to the 85-90% range.
Actual Performance Data Comparison
The following table shows capacity and initial efficiency comparisons for different fixed carbon content graphite:
Fixed Carbon Content | Reversible Capacity (mAh/g) | Initial Coulombic Efficiency | Data Source Type | References |
99.5-99.9% | 355-365 | 88-92% | Experimental data | |
98.0-99.0% | 345-355 | 85-88% | Calculated based on ICL mechanism | Based on ICL 8-12% calculation |
95.0-98.0% | 330-345 | 80-85% | Industry empirical values | Industrial production data |
<95.0% | <330 | <80% | Industry empirical values | Low-purity material performance |
Note: Data marked as calculated and empirical values are based on theoretical extrapolation of impurity impact mechanisms; actual performance may vary depending on specific impurity types and production processes.
Importance of Initial Coulombic Efficiency
Initial Coulombic Efficiency (ICE) refers to the ratio of discharge capacity to charge capacity during the battery’s first charge. According to OSTI research, during first charge, some lithium ions are irreversibly consumed by:
- SEI Film Formation: Consumes 40-70 mAh/g
- Impurity Reactions: Consumes 10-30 mAh/g
- Defect Trapping: Consumes 5-15 mAh/g
Why Does ICE Matter?
- Lithium Source Loss: Each 1% decrease in ICE wastes approximately 1% of expensive lithium salts (battery-grade lithium carbonate is a key raw material whose price fluctuations directly impact battery costs)
- Energy Density: Low ICE directly reduces overall battery pack energy density by 3-5%
- Cost Impact: Requires more active material in the cathode to compensate for lithium loss
Objective Recommendation: For power battery applications, we recommend selecting graphite with fixed carbon content ≥99.5% to ensure initial coulombic efficiency exceeds 90%. While raw material costs increase approximately 20-30%, this saves 5-8% in lithium salt consumption, providing significant cost advantages in large-scale production (10,000+ ton annual capacity).
Impact Two: Cycle Life and SEI Film Stability
What is the SEI Film?
The Solid Electrolyte Interphase (SEI) is a passivation layer that spontaneously forms on the graphite surface during the battery’s first charge, typically 10-50 nanometers thick (actual thickness is affected by electrolyte system and cycling conditions, with reported ranges of 20-100 nanometers in different studies). npj Computational Materials research demonstrates that the SEI film allows lithium-ion passage while blocking electron transport, thereby preventing continuous electrolyte decomposition.
How Do Impurities Damage the SEI Film?
According to a comprehensive review in Carbon journal, impurities in low fixed carbon content graphite damage SEI film stability through multiple mechanisms:
- Moisture and Oxygen Impurities
- React with LiPF₆ in electrolyte to produce acidic substances like HF
- Corrode SEI film, causing local damage
- Journal of Power Sources research confirms: Moisture and oxygen impurities are key factors causing increased first-cycle capacity loss
- Metal Impurities
- Metal ions like Fe, Ni, Cu catalyze SEI film decomposition reactions
- Accelerate SEI film aging and thickening
- Lead to continuous capacity fade and internal resistance growth
- Silicate Impurities
- Disrupt SEI film density, forming microcracks
- Electrolyte penetration triggers new side reactions
- Cause “infinite cycling” of SEI film growth
Cycle Performance Data Comparison
Graphite with different fixed carbon content shows significant differences in capacity retention during cycling. Data synthesized from MDPI, PMC experimental data and calculations based on impurity impact mechanisms:
- Fixed carbon content ≥99.5%: 85-90% capacity retention after 500 cycles (experimentally verified)
- Fixed carbon content 98%: 75-82% capacity retention after 500 cycles (calculated based on impurity impact mechanisms)
- Fixed carbon content 95%: Capacity degraded to approximately 70% after 300 cycles (industry testing experience)
Note: Calculated and empirical value data are based on experimental results from high-purity materials and extrapolation of impurity impact mechanisms; actual performance is affected by multiple factors including specific impurity types, particle morphology, and coating processes.
Professional Data Support: npj Computational Materials modeling research shows that over 50% of battery capacity loss can be attributed to unstable SEI film growth. High-purity graphite forms denser, more stable SEI films, significantly extending battery life. This finding has been confirmed by RSC Sustainable Energy & Fuels review articles.
Impact Three: Rate Performance and Fast Charging Capability
What is Rate Performance?
Rate Capability refers to a battery’s ability to maintain capacity at different charge/discharge rates. Expressed as C-rate: 1C means full charge in 1 hour, 5C means full charge in 12 minutes. For electric vehicle fast charging applications, current mainstream fast charging power is 1-2C, with future development targets of 3-5C rate performance.
How Do Impurities Affect Rate Performance?
According to latest ScienceDirect research (2025), fixed carbon content directly impacts three key factors:
- Electronic Conductivity
- Most impurities are non-conductive or low-conductivity substances (e.g., SiO₂ conductivity <10⁻¹⁴ S/cm, Al₂O₃ <10⁻¹² S/cm)
- Hinder electron transport between graphite particles
- Research shows that through chemical purification increasing fixed carbon content from 83% to 98%, graphite conductivity significantly improved from initial values to 21.9 S/cm
- Lithium-Ion Diffusion Rate
- Impurities block graphite interlayer channels (interlayer spacing 0.335 nm)
- Increase lithium-ion diffusion resistance
- TA Instruments TGA analysis confirms: Higher purity graphite shows higher thermal decomposition temperatures (841-949°C), better crystallinity, and superior ion diffusion performance
- Polarization Degree
- During high-rate charging, low-purity graphite produces greater voltage polarization
- Increases risk of “lithium plating”
- Seriously affects safety and cycle life
Actual Rate Performance Comparison
The following table shows rate capacity retention for different fixed carbon content graphite:
Fixed Carbon Content | 1C Capacity Retention | 3C Capacity Retention | 5C Capacity Retention | Data Source |
≥99.5% | 95-98% | 85-90% | 70-80% | |
98-99% | 92-95% | 78-85% | 60-70% | Calculated based on conductivity impact |
95-98% | 88-92% | 65-75% | 50-60% | Industry testing data |
<95% | <85% | <60% | <45% | Industry testing data |
Note: Portions marked as calculated and industry data are based on experimental results from high-purity materials and extrapolation of impurity effects on conductivity and ion diffusion. Actual rate performance is also affected by multiple factors including particle size, morphology, and electrode design.
Market Significance
With increasing electric vehicle demand for fast charging, high fixed carbon content (≥99.5%) graphite has become a must-have material for high-power batteries. According to PMC research, hard carbon/graphite hybrid systems can improve capacity retention at 3C rate by 40% compared to pure graphite, but costs also increase correspondingly. Therefore, improving graphite purity remains the most economical solution.
Objective Recommendation: For manufacturers targeting premium power battery markets (such as large cylindrical batteries, CTP/CTC integrated battery applications requiring high power), we recommend setting fixed carbon content ≥99.7% as the target. While purification costs increase 15-20%, products gain significant performance advantages in fast-charging applications, achieve market pricing advantages, and improve likelihood of obtaining mainstream automotive OEM supplier qualifications.
Impact Four: Safety Performance
Safety Hazards from Impurities
Battery safety is the industry’s “lifeline.” While UN 38.3 transportation safety standards and IEC 62133 usage safety standards primarily test overall battery performance, anode material purity is an important foundation for passing these rigorous tests.
- Lithium Dendrite Risk
Frontiers in Chemistry research shows that uneven SEI films formed by low-purity graphite easily precipitate metallic lithium at defects during fast charging, forming dendrites. Consequences of lithium dendrite growth include:
- Internal Short Circuit: Dendrites pierce the separator (only 20-25 μm thick)
- Rapid Temperature Rise: Local temperatures can reach 200-300°C
- Thermal Runaway or Fire: Chain reactions cause entire battery pack failure
- Gas Generation
According to Carbon journal analysis, side reactions between impurities and electrolyte produce various gases:
- CO₂: Carbonate decomposition product
- H₂: Product of moisture reaction with lithium
- C₂H₄: Electrolyte decomposition product
These gases lead to:
- Increased internal battery pressure (normal <0.5 MPa, abnormal can reach 2-3 MPa)
- Shell expansion and deformation (“swelling” phenomenon)
- In extreme cases, pressure relief valve opening or explosion
- Thermal Stability
High-purity graphite exhibits better thermal stability. According to MDPI TGA thermal analysis data:
- High-purity graphite (99.9%): Thermal decomposition onset temperature >900°C
- Medium-purity graphite (95-98%): Thermal decomposition onset temperature 700-850°C
- Low-purity graphite (<95%): Thermal decomposition onset temperature <700°C
During thermal runaway events, low-purity graphite reacts more violently, releases more heat, and accelerates the runaway process.
Relationship Between Safety Standards and Material Purity
UN 38.3 standards include 8 tests (T1-T8) covering extreme conditions like altitude, thermal, vibration, impact, and short circuit. IEC 62133 standards focus on usage scenarios like overcharge, over-discharge, and thermal abuse. High-purity anode materials help pass these tests:
Test Item | High-Purity Graphite Advantage | Low-Purity Graphite Risk |
T1 Altitude | Stable SEI, less gas generation | Impurities accelerate gas evolution |
T2 Thermal | Good thermal stability (>900°C) | Low-temperature decomposition (<800°C) |
T3/T4 Vibration/Impact | Dense SEI less prone to rupture | Brittle SEI easily damaged |
T5 Short Circuit | Low thermal runaway risk | Violent exothermic reactions |
Industry Consensus
European Carbon and Graphite Association (ECGA) technical report indicates that the power battery field has increasingly stringent requirements for anode material purity. International mainstream automotive OEMs typically require suppliers to provide graphite with fixed carbon content ≥99.5% and conduct strict batch-by-batch testing. Process Capability Index (CPK) requirements vary by application:
- Energy storage applications: CPK ≥1.0
- General power batteries: CPK ≥1.33 (corresponding to 99.38% yield)
- Premium automotive-grade applications: CPK ≥1.67 (corresponding to 99.9997% yield)
Objective Recommendation: Safety is a non-negotiable bottom line. Even under cost pressure, fixed carbon content requirements should not be compromised. We recommend establishing a strict “three-level inspection system”:
- Incoming Inspection: Full inspection of fixed carbon content for each batch
- Process Monitoring: Online monitoring of purification processes, fluctuation range ≤0.2%
- Finished Product Sampling: At least 3 samples per batch sent for third-party testing
Controlling safety risks at the source, while adding approximately 3-5% to quality inspection costs, avoids recall losses due to quality issues (single recall costs can reach tens of millions of dollars).
How to Achieve High Fixed Carbon Content? Technology Pathway Analysis
After understanding the importance of fixed carbon content, the key question is: How to increase fixed carbon content from 98% to above 99.5%?
Mainstream Purification Technology Routes
- High-Temperature Purification (Graphitization)
- Principle: At 2500-3000°C high temperature, impurities volatilize or transform
- Advantage: Significant purification effect, can reach 99.5-99.9%
- Key: Temperature control precision ±20°C, atmosphere protection (inert gas)
- Characteristics: High total energy consumption (12,000-15,000 kWh/ton, significantly higher than conventional purification processes’ 5,000-8,000 kWh/ton), substantial equipment investment
- Chemical Purification
- Principle: Use acid-base solutions to dissolve impurities
- Advantage: Can target specific impurities (such as metal oxides)
- Key: Precise control of acid-base concentration, temperature, and time
- Characteristics: Chemical consumption, high wastewater treatment requirements
- Combined Process (Recommended)
- Best Practice: Chemical purification + high-temperature graphitization
- Effect: Fixed carbon content can stably reach 99.7-99.9%
- Cycle: Complete process cycle 3-5 days
Impact of Process Selection on Investment
Investment Amount Clarification: All investment and cost data in this article are in Chinese Yuan (CNY). International clients can convert using current exchange rates (reference rate: 1 USD ≈ 7.0 CNY, 1 EUR ≈ 7.6 CNY). Specific investments need adjustment based on equipment origin, local installation costs, energy prices, and other factors.
Different technology routes show significant differences in investment and operating costs:
Pure High-Temperature Graphitization Solution:
- Equipment investment: 8-12 million CNY (approximately $1.15-1.7 million USD)
- Operating cost characteristics: Electricity cost is the main cost item (accounting for 60-70% of operating costs)
- Applicable scenarios: Large-batch production, regions with relatively low electricity costs
Chemical Purification-Primary Solution:
- Equipment investment: 6-9 million CNY (approximately $0.85-1.3 million USD)
- Operating cost characteristics: High chemical and wastewater treatment costs
- Applicable scenarios: Small to medium batches, regions with relatively lenient environmental requirements
Combined Process Solution:
- Equipment investment: 10-15 million CNY (approximately $1.45-2.15 million USD)
- Operating cost characteristics: Relatively optimized comprehensive costs
- Applicable scenarios: High-end applications pursuing high purity and stability
Important Note: Energy Cost Considerations
Energy consumption costs for high-temperature purification processes are significantly affected by local electricity prices. Industrial electricity prices vary greatly across different countries and regions:
- Low-cost regions (Middle East, Western China, parts of North America): $0.03-0.06 USD/kWh
- Medium-cost regions (Eastern China, most of US, Southeast Asia): $0.06-0.12 USD/kWh
- High-cost regions (Europe, Japan): $0.12-0.25 USD/kWh
Site selection should fully consider energy cost factors. In regions with lower electricity prices, high-temperature purification solutions offer better economics.
Example Calculation: Annual production of 5,000 tons of high-purity graphite using high-temperature graphitization process:
- Annual energy consumption: 5,000 tons × 13,500 kWh/ton = 67,500,000 kWh
- In low-cost region ($0.05 USD/kWh): Annual electricity cost approximately $3.4 million
- In high-cost region ($0.20 USD/kWh): Annual electricity cost approximately $13.5 million
- Difference up to 4 times!
Process Loss Explanation
Yield losses during purification vary by process route:
- Pure high-temperature graphitization: 5-8% (mainly impurity volatilization and partial graphite oxidation loss)
- Chemical purification-primary: 8-12% (dissolution loss and washing loss during acid treatment)
- Combined process: 10-15% (cumulative loss from two purification processes)
Actual loss rates are affected by multiple factors including raw material quality, process parameter control precision, equipment performance, etc., and require optimization based on specific circumstances.
Why Is Professional Equipment Needed?
Achieving 99.5%+ fixed carbon content presents key challenges including:
- Temperature Control: High-temperature furnaces require precision temperature control systems (within ±20°C), temperature fluctuations directly affect purification effectiveness
- Atmosphere Protection: Prevent graphite oxidation at high temperatures, requires inert gas circulation system and precise atmosphere control
- Process Monitoring: Real-time online detection (such as TGA thermogravimetric analysis), ensuring process stability and product consistency
- Energy Management: High-temperature purification consumes enormous energy, requires optimizing energy utilization efficiency to reduce operating costs
All these require professional equipment support and rich process experience. Independent R&D cycles are long (industry average 2-3 years, some companies longer), trial-and-error costs are high (single pilot test costs including raw materials, energy consumption, labor, etc., typically 0.5-2 million CNY, approximately $70,000-300,000 USD), while mature equipment solutions can significantly shorten production time to 9-15 months.
From Theory to Practice: Investment Return Analysis
Investment Return Analysis Framework
Purification upgrading is a systematic project involving equipment investment, process optimization, market development, and other aspects. Below is a typical investment return analysis framework:
One-Time Investment Estimate:
Equipment and supporting investments vary by process route and capacity scale:
- Small production line (2,000-3,000 tons/year): 8-12 million CNY (approximately $1.15-1.7 million USD)
- Medium production line (5,000-8,000 tons/year): 12-18 million CNY (approximately $1.7-2.6 million USD)
- Large production line (10,000+ tons/year): 18-25 million CNY (approximately $2.6-3.6 million USD)
Note: USD conversions above use reference rate 1 USD = 7.0 CNY; actual exchange rate should use current market rate.
Investment includes:
- Main purification equipment (high-temperature furnace or chemical purification system)
- Supporting facilities (power capacity expansion, inert gas supply, cooling system, environmental protection facilities)
- Online testing equipment (TGA, elemental analyzer, etc.)
- Installation, commissioning, and personnel training
Annual Benefit Improvement Sources:
After upgrading to high-purity graphite, enterprises can gain benefits from multiple dimensions:
- Product Premium Space: 10-25% (varies by market positioning and customer structure)
- Enter high-end supply chains with increased selling prices
- Customer acceptance of premiums for high-performance materials
- Lithium Salt Consumption Savings: 5-8%
- Direct cost savings from improved initial coulombic efficiency
- For factories producing 5,000 tons of batteries annually, can save millions of dollars per year
- Market Access Value (unquantifiable but important)
- Enter mainstream power battery enterprise supply chains
- Pass UN 38.3 and IEC 62133 certification for international market access
- Improve order stability and brand premium capability
- Avoid Price War Risk
- High-purity products have fewer competitors, stronger bargaining power
- Reduce impact of low-end market price fluctuations
Investment Payback Period Estimate:
Based on industry experience and actual cases:
- Ideal Scenario (calculated after production line reaches capacity): 12-18 months
- Prerequisites: Smooth market development, quick customer certification approval
- Product premium reaches 20%+
- Capacity utilization reaches 80%+
- Actual Cycle (including complete project cycle): 24-36 months
- Includes equipment construction period (6-9 months)
- Commissioning ramp-up period (3-6 months)
- Customer certification cycle (12-18 months)
- Gradual market development period (typically overlaps with certification period, or requires additional 3-6 months)
Key Success Factors:
Realization of investment returns highly depends on:
- Raw material quality and stability
- Process control capability and team experience
- Accuracy of target market positioning
- Advance communication and cooperation intentions with target customers
- Continuous process optimization and cost control
Important Note:
The above represents typical industry ranges; actual investment returns are affected by multiple factors including enterprise scale, raw material costs, local energy prices, market environment, management level, etc. We strongly recommend before investment decisions:
- Conduct detailed feasibility studies, including market research and customer intention confirmation
- Consult professional institutions for customized investment return calculations
- Consider phased implementation to reduce one-time investment risk
- Establish strategic cooperation relationships with target customers to ensure market outlets
Action Recommendations for Three Phases
Based on this article’s technical analysis, we provide phased implementation recommendations for anode material manufacturers:
Phase One: Short-Term Optimization (3-6 months)
Establish Quality Control System
Objective: Improve stability and consistency based on existing processes
Key Actions:
- Strengthen Incoming Inspection
- Full inspection of fixed carbon content for each batch
- Establish supplier evaluation system (A/B/C grading)
- Conduct special testing for key impurities (Fe, Si, S)
- Upgrade Process Monitoring
- Online monitoring of key process parameters (temperature, time, atmosphere)
- Establish SPC Statistical Process Control system
- Set control target for fluctuation range ≤0.2%
- Standardize Finished Product Sampling
- At least 3 samples per batch sent for third-party authoritative institution testing
- Establish long-term cooperation with mainstream testing institutions (such as SGS, TÜV)
- Data Traceability System
- Establish batch quality archives for full traceability
- Create baseline database for subsequent process upgrades
Investment Required: 500,000-1 million CNY (approximately $70,000-140,000 USD) – Testing equipment and software systems
Expected Outcomes:
- Reduce fixed carbon content fluctuation from ±0.5% to ±0.3% under existing processes
- Improve quality stability, reduce customer complaints by 30%+
- Establish complete data foundation for subsequent upgrades
- Product selling price can increase 3-5% through quality improvement
Phase Two: Medium-Term Upgrade (6-12 months)
Optimize Purification Process
Objective: Stably increase fixed carbon content from 98% to above 99.5%
Key Actions:
- Equipment System Upgrade
- Optimize high-temperature furnace temperature control system (increase to 2800-3000°C range)
- Improve atmosphere control system (nitrogen/argon purity ≥99.999%)
- Introduce online TGA thermogravimetric analysis equipment for real-time purification effect monitoring
- Process Parameter Optimization
- Optimize heating rate curve (typically 5-10°C/min)
- Adjust high-temperature stage holding time (2-6 hours depending on furnace type)
- Optimize cooling curve to reduce thermal stress cracking
- Establish Combined Process
- Implement chemical purification + high-temperature graphitization combined process
- Chemical purification targets removal of Fe, Si, and other metal impurities
- High-temperature graphitization removes residual impurities and improves crystallinity
- Pilot Verification
- Small batch (100-200 tons) pilot verification
- Submit samples to 3-5 target customers for performance testing
- Optimize process parameters based on feedback
Investment Required: 6-10 million CNY (approximately $0.85-1.45 million USD)
- Equipment modification: 5-8 million CNY (approximately $0.7-1.15 million USD)
- Process optimization trials: 500,000-1 million CNY (approximately $70,000-140,000 USD)
- Pilot materials and testing fees: 500,000-1 million CNY (approximately $70,000-140,000 USD)
Expected Outcomes:
- Stably achieve fixed carbon content of 99.5-99.7%
- Improve initial coulombic efficiency from 85% to above 90%
- Obtain sample testing qualifications from 3-5 mainstream battery enterprises
- Lay foundation for bulk supply and certification
Phase Three: Long-Term Strategy (1-2 years)
Build High-Purity Graphite Core Competitiveness
Objective: Make high-purity graphite (≥99.7%) the core product line and competitive advantage
Strategic Objectives:
- Product Positioning
- Make fixed carbon content ≥99.7% the standard product
- Target power battery fast-charging applications (current mainstream 1-2C, future target 3-5C)
- Develop differentiated product series (such as ultra-high purity 99.9%, special morphology graphite, etc.)
- Improve Certification System
- Pass UN 38.3 and IEC 62133 international safety certifications
- Obtain mainstream automotive OEM supplier qualifications
- Pass IATF 16949 automotive industry quality management system certification
- Establish corporate laboratory CNAS/ISO 17025 accreditation
- Capacity Planning
- Establish dedicated high-purity graphite production line (3,000-5,000 tons/year)
- Maintain conventional production line to meet mid-range market demand (flexible allocation)
- Form three-tier product ladder: “ultra-high purity (99.9%) – high purity (99.7%) – standard (98%)”
- Technology Moat
- Establish patent technology barriers (process patents, formulation patents)
- Cultivate core technical team
- Establish industry-university-research cooperation with research institutions
- Market Ecosystem Building
- Establish strategic cooperation relationships with 3-5 mainstream battery enterprises
- Participate in industry standard formulation
- Establish technical service team to provide customized solutions for customers
Investment Required: Additional investment of 5-10 million CNY (approximately $0.7-1.45 million USD) based on capacity planning
- Capacity expansion and dedicated line construction
- Certification fees and system construction
- R&D investment and team building
Expected Outcomes:
Financial Metrics:
- High-purity products contribute 50-60% of revenue
- Overall gross margin increases to 35-40%
- Significantly enhanced resistance to market price wars
Market Position:
- Enter supply chains of 3+ international mainstream power battery enterprises
- Gain international market recognition with global supply capability
- Establish brand advantages in high-purity graphite segment
Sustainable Development:
- Establish technology innovation mechanism for continuous product iteration
- Form customer stickiness with improved order stability
- Lay foundation for entering international premium markets
As a one-stop equipment and solution provider specializing in natural graphite purification for anode materials, we provide not only individual equipment, but complete end-to-end solutions from raw material evaluation, process design, equipment integration to EPC turnkey projects.