Products Description
Karl Fischer Titrator for Lithium-ion Battery Powder, Electrode and electrolyte Moisture Testing.
XW-AKF-CH6 Karl Fischer Moisture Measurement Equipment integrates a moisture measurement module and a sample feeding heating module into a single unit, fully meeting the demands of lithium battery industry applications. With a novel design and user-friendly operation, it provides convenient maintenance and wide application coverage—from anode and cathode materials to electrodes, separators, and electrolytes. It supports moisture content detection from 1 ppm to 100%, covering the entire range of industry requirements.
Advantage:
1. The equipment features a compact design and offers greater operational convenience. It is especially suitable for lithium battery applications, particularly for users working within glove box environments.
2. The automatic lifting puncture function helps reduce manual labor and significantly enhances testing efficiency.
3. Software functionality has been further optimized to ensure more stable and user-friendly operation. Features such as user role management and permission settings have been added to streamline the overall test management process.
Feature:
● Integrated design of Karl furnace and moisture meter, pioneered in China, featuring a compact layout that minimizes space requirements.
● Equipped with a color touch screen, full digital keyboard, and one-button start; user-friendly operation requires no professional training.
● Incorporates HOGON intelligent detection technology for automatic balancing and detection, with environmental drift compensation to maintain detection accuracy.
● Enhanced electrolytic control capability compatible with various electrolytes, offering high detection range and moisture measurement accuracy up to 0.01 μg.
● Features include electronic display of carrier gas flow and real-time moisture content curves for an intuitive user interface.
●The sample evaporator supports constant temperature, temperature programming, and other precise control modes, with built-in intelligent over-temperature protection.
● Offers automatic lifting puncture and dual injection via rotary cover, allowing flexible operation in diverse usage environments.
● Supports editing, saving, and retrieving multiple sets of analysis method parameters, facilitating adaptation to different sample types.
● Compatible with multiple determination methods and suitable for gas, liquid, solid samples, and a wide range of moisture content levels.
●Intelligent status monitoring with hardware protection, including fault termination and timed shutdown functions, effectively extends product service life.
Technical Parameters
| Measure Method | Karl FischerCoulomb method (Coulometry) |
| Measure Range | H2O：3ug-199mg/0.01ug(H2O mass） |
| Measurement resolution: 0.01ug(H2O mass) | |
| Measure repeatability | ≧99.7%（1000μgH2O） |
| Applicable sample type | Liquid,solid,gas |
| Sample feeding method | Direct feeding, puncture feeding, change cover and purge feeding |
| Temperature control range | RT~285℃ /0.1℃；3 level Temperature programmed |
| Heating rate | 15℃/min（under 200℃） |
| Measure duration | Average 50 seconds to 10 minutes (methods vary) |
| Input gas source | External dry air/nitrogen (99.99%) |
| Carrier gas pressure | Input limit: 0.6mpa, output: 0-0.4mpa |
| Flow range | 0~100mL/min |
| Flow accuracy | 1ml/min |
| Sample bottle specification | 10ml |
| Data output | RS232/USB,USB pin micro printer |
| Instrument power | 300W；220V/50Hz |
| Size, weight | L500*W250*H360（mm）Weight：11.5（kg） |
Application to Cathode Electrode, Electrolyte and Separator
Karl Fischer Coulometry for Cathode Electrode Moisture Measure
| Abstract | The electrode sheet is a critical component of a finished lithium battery, typically classified into cathode and anode electrode sheets. In this experiment, the XW-AKF-CH6 all-in-one machine is used to measure the moisture content of the cathode electrode sample. Experimental conditions: ambient temperature 25 ℃; ambient humidity ≤30%. |
| Sample | Cathode electrode |
| Measure method | 1.Power on the XW-AKF-CH6 moisture tester and add an appropriate amount of Karl Fischer reagent to the titration tank, ensuring the liquid level remains between the maximum and minimum scale marks. 2.Before opening the nitrogen cylinder, set and adjust the airflow and temperature as required. 3.Wait for the instrument to complete the blank electrolysis balance test. 4.For sample testing, place an appropriate amount of the sample into the sample bottle, position it on the heating tank, connect the heating tracing tube, click “Start Measurement,” then load the sample, input the relevant parameters, and wait for the test results. |
Results
| No. | Sample qty/g | Water content/ug | Measure duration/nin | Result/ppm |
| 1 | 0.6718 | 203.9 | 5:00 | 303.5 |
| 2 | 0.6383 | 182.1 | 5:00 | 285.3 |
| 3 | 0.6569 | 187.6 | 5:00 | 285.6 |
Karl Fischer Coulometry For Electrolyte Moisture Measure
| Abstract | Lithium battery electrolyte is the carrier of ion transport in the battery, which is generally composed of lithium salts and organic solvents. XW-AKF-CH6 was used to measure the water content in the electrolyte sample.Experimental conditions: ambient temperature 25℃; Ambient humidity 35% |
| Sample | Electrolyte |
| Measure method | 1. Turn on the XW-AKF-CH6 moisture tester and add an appropriate amount of Karl Fischer reagent to the titration tank to ensure that the reagent is between the maximum and minimum scale.2. Close the nitrogen cylinder3. Wait for blank electrolysis balance test of the instrument.4. For sample testing, take appropriate amount of sample into the sample bottle, place it on the heating tank, connect the heating tracing tube, click start measurement, then sample, input relevant parameters, and wait for the measurement results |
Results
| No. | Sample qty/g | Water content/ug | Measure duration/nin | Result/ppm |
| 1 | 0.62 | 5.1 | 1:06 | 8.2 |
| 2 | 0.61 | 5.4 | 1:18 | 8.9 |
| 3 | 0.65 | 5.0 | 1:25 | 7.7 |
Karl Fischer Coulometry For Separator Moisture Measure
| Abstract | In the structure of lithium battery, separator is one of the key inner components. AKF-CH6 was used to measure moisture content in separator samples. Experimental conditions: ambient temperature 25℃; Ambient humidity 35% |
| Sample | Separator |
| Measure method | 1. Turn on the XW-AKF-CH6 moisture tester and add an appropriate amount of Karl Fischer reagent to the titration tank to ensure that the reagent is between the maximum and minimum scale.2. Turn on the nitrogen cylinder,set gas flow,temperature3. Wait for blank electrolysis balance test of the instrument.4. For sample testing, take appropriate amount of sample into the sample bottle, place it on the heating tank, connect the heating tracing tube, click start measurement, then sample, input relevant parameters, and wait for the measurement results |
Results
| No. | Sample qty/g | Water content/ug | Measure duration/nin | Result/ppm |
| 1 | 0.1505 | 23.4 | 4:11 | 155.5 |
| 2 | 0.1532 | 27.8 | 4:14 | 181.4 |
| 3 | 0.1887 | 39.3 | 4:15 | 208.3 |
