Slurry Analytical System

2022

HIOKI offers advanced quality test solutions for electrode Slurry.
-Three parameters indicate the mixture condition of the slurry based on impedance
-Hardware & Software ideal for slurry impedance measurement
-Data & Analysis tool for various types of slurry

Unique HIOKI Slurry Analysis technology provides quantified mixing quality of electrode slurry to approach your ideal Battery. It enables you to optimize the slurry process and helps detect quality deviations in future battery cell manufacturing upstream processes. Ultimately, this will lead to the stabilization of cell quality.

Slurry Analytical System Capabilities

Hioki's Slurry Analytical System measures slurry impedance and analyzes the information. The measurement data lets you assess the slurry’s impedance, while the analysis can aid in improving the slurry's mixture conditions.

Key Features

A proprietary Hioki algorithm analyzes impedance measured values for LiB electrode slurries
Easily measure impedance of slurry
Analysis Results “DCR, Rratio, Uniformity” indicate electron conductivity of Slurry
Cloud-based analysis software ensures you always have access to the latest version
Able to choose license plan, fit the right solution for your needs

Slurry Measurement

The Slurry Analytical System makes it easy to measure impedance using test equipment recommended by Hioki for the best results. It can render a Nyquist plot after just 1 minute of measurement per sample. By comparing Nyquist plots , you can compare impedance values among different slurry types or check quality consistency across the same slurry, all in a quantitative manner. Nyquist plots can be rendered using the following online software:

https://www.circuitfitting.net/multiplot

Slurry Analysis

The Slurry Analytical System can be used to infer slurry mixture conditions based on electron conductivity.

The Slurry Analytical System analyzes the network formed by the conductive materials in the slurry from the measured impedance information.

This analytical value contributes to the study and consideration of slurry composition and production conditions, making slurry research and development more efficient.

Some data cannot be analyzed. Follow the link below to learn what kind of data is suitable for analysis.

Impedance Data Type that can be Analyzed

Basic Instructions

Prepare a measurement environment and measure the slurry’s impedance. Analytical software in the cloud will perform analysis using the optimal algorithm.

1. Preparing a measurement equipment
Provide a measuring instrument for use in measuring the slurry’s impedance. The following instruments are recommended:
- LCR Meter IM3536 or IM3536-01 (Measurement Software SA2633 is available free of charge.)
- Test Fixture SA9002
- Electrode Cell SA9001

2. Make measurements using the recommended equipment
Fill an electrode cell (slurry container-jig) with about 1 mL of slurry.
Insert the cell into the test fixture (press until it clicks).
Measure the impedance for about 1 minute using the LCR meter and analysis software.

3. Log in to the analysis software
Create a free account. Enable the analysis function by registering your registration code. The registration code can be found on the license card you purchased.
Log in to the analytical software

4. Send your data and receive analytical values
Select the measurement data and analysis conditions.
See the specifications below for more information about analysis conditions.

Click here to view specifications for the Slurry Analytical System.

Analysis principles

The Slurry Analytical System outputs three quantitative indicators (DCR, Rratio, and uniformity) that can be used to make a relative evaluation of slurry conductivity. It builds an electrical equivalent circuit (EEC) that corresponds to the manner in which current flows and electrons move when an AC current flows to the slurry. Please see this FAQ for details.

Analysis Principles FAQ

Analysis and observation examples

See how analysis is actually carried out.
- Example 1: Analyzing differences due to kneading time
- Example 2: Analyzing differences in conductive auxiliary agent quantity
- Example 3: Analyzing the relationship between electron conductivity and dynamic viscoelasticity resulting from differences in dispersant quantity

Analysis and observation examples

Analytical Software SA2632

System requirements (computer)	Memory: 512 MB or more Hard disk: 1 GB or more of available space Display: 1024 × 768 dots or more, 65,536 colors or more Web browser verified for operation: Microsoft Edge and Google Chrome, both of which run on Windows 11, Windows 10 Pro, or Windows 8.1 Pro Google Chrome, which runs on macOS
Login function	The login screen is displayed when "https://slurry.circuitfitting.net/" is accessed The analysis related screen (my page) is displayed when you log in using the GENNECT account
License authentication	3-day license, 30-day license, 365-day license The analysis function is only available when the license is activated
Analysis item	- DCR - Rratio - Uniformity
Impedance data file upload	- Maximum number of files to be uploaded simultaneously: 30 - Total size limit of files to be uploaded: 1 MB - File extension: CSV Files uploaded simultaneously have the same material information and analysis conditions.
Supported file formats	CSV file obtained by the measurement software (SA2633)
Analysis time (representative value)	- Approx.1 minute/file - Number of files to be simultaneously analyzed: 50
Language	Japanese, English (default setting: English)

Measurement Software SA2633

System requirements (computer)	Memory: 512 MB or more Hard disk: 1 GB or more of available space Display: 1,024 × 768 dots or more, 65,536 colors or more Interface: USB 2.0 or more to be installed OS: Windows 8.1 (32-bit/64-bit) Windows 10 (32-bit/64-bit) Windows 11 (64-bit) .NET Framework: 4.7.2
Instrument to be controlled	IM3536 LCR Meter, IM3536-01 LCR Meter
Measurement data save function	Outputs the measured impedance data in the file format that can be loaded using the SA2632 Analytical Software. File extension: CSV
Measurement time	Approx. 1 minute

Electrode Cell SA9001

Dimensions	Approx. 27W × 42H × 37D mm (1.06″W × 1.65″H × 1.46″D) (including the electrode)
Weight	Approx. 2.3 g (0.1 oz.)
Material	Container: polypropylene (PP), electrode: brass (nickel plated)
Capacity	Approx. 1 mL
Electrode pin	Diameter (Area where liquid to be measured comes in contact): 3 mm ±0.1 mm Electrode interval: 6 mm ±0.3 mm
Operating temperature and humidity range	23°C ±5°C (73°F ±9°F), 80% RH or less (non-condensing)
Storage temperature and humidity range	−10°C to 50°C (14°F to 122°F), 80% RH or less (non-condensing)
Operating environment	Indoors, altitude up to 2000 m (6562 ft.)
Product warranty duration	The Electrode Cell is a consumable and is not covered by the warranty

Test Fixture SA9002

Measurable frequency	DC to 10 MHz
Connectable sample	SA9001 Electrode Cell
Residual impedance	Residual resistance during short circuit 200 mΩ or less (reference for 100 Hz) Inter-electrode stray capacitance 0.2 pF or less (reference for 1 MHz)
Dimensions	Approx. 98W × 38H × 24D mm (3.86″W × 1.50″H × 0.94″D) (excluding protruding parts)
Weight	Approx. 210 g (7.4 oz.)
Included accessory	Shorting plate for compensation

Measurement conditions*

*If using an instrument other than the IM3536 or IM3536-01 - Use the Electrode Cell SA9001. The analytical algorithm assumes use of the SA9001. - Check whether the Test Fixture SA9002 can be connected to the instrument. - Acquire data under the measurement conditions listed below. - Prepare a CSV file to send to the system.

Frequency sweep range	Minimum frequency: 0.9 mHz to 110 kHz Maximum frequency: 190 kHz to 310 MHz
Number of measurement points	Between 490 points and 1100 points in logarithmic intervals
Applied signal	Constant-voltage, ±100 mV
Measurement parameters	Frequency, Rs (ReZ), X (ImZ)

The number of data required depends on the measurement frequency range.
(Reference value)
1 mHz to 200 kHz: 700 points
1 mHz to 8 MHz: 1000 points
4 Hz to 8 MHz: 500 points
4 Hz to 300 MHz: 1000 points
100 kHz to 300 MHz: 500 points

Available material categories

- The system uses the appropriate analytical algorithm to analyze the data based on the selected material category combination. - You may not be able to select some combinations, and some material categories may not be available. If you encounter this issue, perform the analysis using the default model. - There’s no need to specify material proportions. - In some cases, the system may not be able perform analysis. - Hioki plans to add material categories over time.

Active materials	NMC, LCO, NCA, LFP, LMO, MnO2/CFx, Graphite, LTO, Si, SiO, Activated Carbon, None
Conductive aid	Acetylene Black, Furnace Black, Carbon Nanotube, Graphite
Binder	PVDF, SBR, PTFE, None
Dispersant	CMC, MC, PVP, None
Solvent	NMP, Water

License card, Electrode cells, Test fixture (4)

*Please purchase electrode cells and licenses as necessary based on your expected frequency of use and experimental plan.
*Sensitive information will be shared with customers, including during use of analysis functionality. Customers are responsible for determining whether to make purchases through a retailer.