Karl Fischer (KF) Moisture Testing Services in the New Energy/Battery Industry

– Precise Moisture Control · Safeguarding Battery Performance and Safety

Moisture control is critical during the production and R&D of lithium batteries and new energy materials. As a third-party professional analytical testing laboratory, Alfa Chemistry offers highly sensitive and traceable Karl Fischer (KF) moisture testing services. These services provide strong technical support for quality control, R&D optimization, and process improvement of battery materials.

Technical Positioning of Karl Fischer Titration in Moisture Analysis for New Energy Materials

Karl Fischer titration is an internationally recognized method for determining trace and ultra-trace levels of water. It offers high sensitivity, strong selectivity, and compatibility with a wide range of sample types. Our analytical platform, built upon this method and optimized for new energy materials, enables accurate detection of trace moisture in battery systems, helping enterprises and researchers enhance material stability, product consistency, and overall battery performance.

Trace Moisture, Major Impact — How Water Content Influences Battery Material Performance and Safety

In the new energy sector, moisture is more than an impurity—it can cause structural changes, chemical side reactions, or electrochemical failure across various material systems, posing serious threats to battery performance and safety:

1. Lithium Salts (e.g., LiPF₆)

• Extremely hygroscopic; reacts with water to generate toxic HF gas
• Leads to electrolyte decomposition and reduced battery lifespan

2. Electrolyte

• Moisture triggers side reactions and gas formation
• Affects SEI film formation, reducing battery safety

3. Separators and Slurries

• Trace moisture impacts wettability and coating uniformity
• Causes interface instability and affects cycling performance

4. Electrode Active Materials (e.g., NCM, LFP, Si/C)

• Reacts with water to form insoluble substances or by-products
• Leads to particle agglomeration, reduced specific capacity, and interface degradation

Accurate moisture detection and control is a key step in ensuring material stability and high production yield in battery manufacturing.

Why Karl Fischer? The Precision Technology Behind Moisture Control in Battery Materials

1. High Sensitivity and Selectivity

• Detection limits as low as 1 ppm, meeting ultra-low moisture control needs
• Specifically identifies water content, minimally affected by most organic components

2. Compatibility with Complex Sample Systems

• Applicable to electrolytes, lithium salts, slurries, electrode powders, separators, and more
• Supports high-temperature injection and inert atmosphere protection for hygroscopic or heat-sensitive samples

3. Reliable Data Across R&D and Production

• Fully traceable data complying with ISO, ASTM, and battery industry standards
• Suitable for scientific research proposals, IP filings, and product certification

Real-World Applications — Moisture Testing Across Electrolytes, Electrodes, and More

Advanced Instrumentation and Platforms Ensuring High-Accuracy, Reliable Results

1. Instrumentation

• Metrohm / Mettler / Mitsubishi KF Analyzers
• Volumetric and Coulometric Titration Systems
• High-Temperature Injection System (150–300°C)
• Inert Atmosphere Sealed Sampling System

2. Detection Range and Applicable Samples

More Than Just Testing — Your Technical Partner for Moisture Control in Battery R&D and Manufacturing

• Extensive experience in the new energy sector: Familiar with key parameters and common sample types in lithium battery testing
• Standardized process control: Executed per ISO 760, ASTM E203, and other industry standards
• Customizable testing protocols: Method optimization for different sample types
• Rapid response system: Standard testing turnaround 3–5 business days, expedited service within 48 hours
• Full technical support: Engineers available for data interpretation, material optimization, and drying process improvement

From Sample to Report — A Seamless Workflow for Efficient, Reliable KF Testing

1. Sample Requirements

• Liquids: Sealed glass bottles with screw caps or PTFE containers (inert gas atmosphere preferred)
• Solid powders: Dried and sealed in bags or bottles; label if hygroscopic
• Recommended quantity: 5–10 g (or 5–10 mL) per sample

2. Service Process

• Submit test request online
• Send samples
• Confirm plan with dedicated customer service
• Laboratory performs testing and quality control
• Receive official report (including KF curves and data analysis)

Frequently Asked Questions (FAQ)

Q1: Can KF testing be used for volatile electrolytes?

Yes. We use sealed sampling and inert injection to prevent moisture and solvent loss.

Q2: How do you prevent moisture absorption in lithium salts during testing?

We use fully sealed handling and nitrogen protection to minimize exposure to ambient moisture.

Q3: Can your test data be used for grant applications or project conclusions?

Absolutely. Our reports meet scientific research and IP standards and are audit-traceable.

Q4: Do you offer comparison testing before and after material drying?

Yes, we support this for process optimization, equipment selection, and quality evaluation.