IEST Battery Electrode Coating Peel Strength Tester(LECF Series)

Introduction: The IEST Electrode Coating Peel Strength Tester( LECF Series) is an advanced analytical instrument designed to characterize the interfacial adhesion and depth-resolved mechanical integrity of lithium battery electrodes. Utilizing micron-level layered scraping technology, the LECF precisely peels electrode coatings at controlled depths to quantify peel force and cohesive strength profiles. It provides critical insights into binder distribution (such as SBR migration), coating uniformity, and structural degradation across diverse processes—including conventional wet coatings, dry-processed electrodes, and solid-state battery systems.

Features

  • Stage: Ceramic vacuum chuck, 50 × 50 mm

  • Force Range: 20 N (Accuracy: 0.3% FS)

  • Displacement Accuracy: 1 μm

  • Test Materials: Cathode and Anode Electrodes / Dry Electrodes / Solid-State Electrolytes

Application:

  • Depth-Resolved Adhesion: Quantify peel force and cohesive strength across micron-level coating depths.

  • Binder Migration Analysis: Detect binder floating (e.g., SBR) and evaluate vertical gradient uniformity.

  • Layered Sample Preparation: Prepare depth-specific coating and powder samples for downstream characterization.

  • Next-Gen Electrode R&D: Characterize wet, dry-processed, and solid-state battery electrodes.

Description

1. Principle

Based on micron-level layered scraping technology Precisely peels electrode coatings at different depths/Obtains peel-force and cohesive-strength data.

IEST Battery Electrode Coating Peel Strength Tester (LECF Series) principle and application: depth-resolved micro-blade cutting method (10µm, 20µm, 30µm) evaluating interfacial adhesion strength, internal cohesion force (Fh vs. displacement), and binder formulation performance for anode and cathode electrode sheets.

2. Application Scenario

Test the transverse (lateral) shear force of electrode sheets, quantify coating adhesion, and evaluate electrode manufacturing processes or binder materials.

3. Key Features

  • Stage: Ceramic vacuum chuck, 50 × 50 mm

  • Force Range: 20 N (Accuracy: 0.3% F.S)

  • Displacement Accuracy: 1 μm

  • Test Materials: Cathode and Anode Electrodes / Dry Electrodes / Solid-State Electrolytes

Applications

1. Peel Force / Strength Comparison

IEST Battery Electrode Coating Peel Strength Tester (LECF Series) application scenarios: evaluating depth-resolved peel strength, interfacial adhesion, and internal cohesive strength across single/double-sided electrodes, manufacturing processes (coating, calendering, drying, storage), and advanced electrode technologies (dry-processed, solid-state, disassembled electrodes).

Scenario: Evaluation of peel strength on samples at different coating depths or under different processing conditions to assess cohesive strength and structural changes.

2. Composition / Uniformity Evaluation

IEST Battery Electrode Coating Peel Strength Tester (LECF Series) application scenario: characterization of electrode compositional variations, depth-resolved binder migration (SBR floating during drying), multi-layer gradient electrode design, and manufacturing process differences.

Scenario: Compositional variations in samples with different processes or gradient designs, and content disparities induced by factors such as binder migration (floating).

3. Powder & Electrode Sample Preparation

IEST Battery Electrode Coating Peel Strength Tester (LECF Series) application case: precision depth-resolved sample preparation, delamination of disassembled electrodes, and layer-by-layer micro-powder sampling across cathode and anode coatings for depth-dependent composition and structural characterization.

Scenario: Samples from different depths of the electrode sheet are prepared and subjected to corresponding characterization methods to reveal compositional and structural information.

Specifications

Model LECF1000
Test Materials Cathode and Anode Electrodes / Dry Electrodes / Solid-State Electrolytes
Sensor Measurement Range 10N
Repeatability 0.02N
Resolution 0.01N
Blade Material Tungsten Steel/ Diamond / Boron Nitride, Customizable
Size 1 mm/3 mm/5 mm, Customizable
Test Range Thickness 400 μm
Length 20 mm
Width 20 mm
Dimensions and Weight Overall Dimensions 500*700*600 mm
Weight Approx. 40 kg

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IEST Battery Electrode Coating Peel Strength Tester(LECF Series)

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