Solid-State Battery Testing Solutionshttps://iestbattery.com/solid-state-battery-testing-solutions/
Comprehensive Solid-State Battery Testing Solutions
Next-Gen Battery Characterization
Accelerating the R&D of Solid-State Batteries
Solid-state batteries represent the next frontier in energy storage, offering superior intrinsic safety, higher energy density, and extended cycle life. However, complex solid-solid interfaces and dynamic mechanical-electrochemical degradation present stringent characterization challenges, demanding standardized, high-precision metrology to guarantee performance, reliability, and process scalability.
At IEST Instrument, we provide a specialized testing ecosystem engineered specifically for solid-state batteries—bridging material-level characterization and full-cell performance validation. Our portfolio spans multi-dimensional powder compression & EIS (SEMS series), glovebox-integrated single-particle mechanics, automatic mold-pressing, SWE in-situ swelling analyzers, and BPD pressure/temperature mapping. By accurately capturing coupled mechanical, electrochemical, and thermal behaviors under realistic operating conditions, our integrated solutions empower researchers and manufacturers to accelerate the commercialization of next-generation batteries.
Single Particle Crushing Force Tester-SPFT3000
Introduction: IEST’s Single Particle Crushing Force Test System (SPFT) enables material-level mechanical characterization at the microparticle scale. lntegrating an optical subsystem, pressure measurement module, displacement monitoring unit,and automated control platform, it supports real-time detection of deformation, slip, collapse, and fatigue life of microparticles during compression.
For solid-state batteries, lEST has developed a glove-box integrated SPFT, enabling inert atmosphere protected mechanical testing of cathode, anode, and electrolvte materials. This configuration ensures precise characterizationof particle mechanical properties under simulated battery operating environments.
Functions:
- Atmosphere protection for solid-state sample
- High-precision displacement with a range of 0-75 µm
- Multiple test modes enable diverse sample analysis
- Sample particle dimensional range 5~50 µm
- Auto-cleaning function, easy to operate
- Rapid analysis, intelligent calculation ofcrushing force and data comparison
Multi-dimensional Solid-State Electrolyte Testing System-SEMS3200
Introduction: The Multi-dimensional solid-State Electrolyte Testing System(SEMS) facilitates comprehensive powder-level material evaluation. lt combines atmospheric protection system, pressurization system, pressure measurement system, thickness measurement system, pressing & lock system, electrochemical testing system, integrated with unified software to enable in-situ monitoring of compaction density and electrochemical performance under adjustable pressure and atmospheric conditions.
Functions:
- Atmosphere protection for solid-state electrolyte
- Enhanced pressure control through motor servo
- Thickness test accuracy: ±10µm
- Integrated pressing and lock for easier operation
- Equipped with internationally certified electrochemical workstations
- Unified software for comprehensive test control
- Rapid analysis, smart ion conductivity calculation, and one-click export
ACADEMIC RESEARCH HIGHLIGHT
✨ Featured in Nature Communications
Silicon-based all-solid-state batteries operating free from external pressure.
1000 cycles · 14.5% volume expansion · Zero external pressure | Zhang, Z., Zhang, X., Liu, Y. et al. Nat Commun 16, 1013 (2025).
To achieve this breakthrough, the research team systematically characterized the bilayer Li₂₁Si₅/Si–Li₂₁Si₅ anode using multi-scale, multi-modal methods. The IEST SEMS3200 played a key role in evaluating powder‑level compaction density and in‑situ electrochemical performance under controlled atmospheres — delivering critical data that validated the design's mechanical and ionic transport stability without external pressure.
DOI: 10.1038/s41467-025-56366-z | The research team acknowledged IEST Instrument in the article's acknowledgements section.
Solid-State Battery Mold & Fixture
1. Mold & Fixture
Introduction: The Gas-tight mold’s inner liner is made of ceramic, which can withstand pressure up to 600MPa. Unique insulating cover design ensures structuralstability and zero deformation under 60℃ high-temperature testing.
- Solid-state Electrolyte lonic Conductivity Test
- Mold Cell Electrochemical Performance Test
2. Mold Cell Pressure Control Testing System
Introduction: The three-plate steel structure is designed to maximize stability by mitigating pressure changes caused by bolt deformation during testing, thereby enhancing testing stability.
- Solid-State Electrolyte lonic Conductivity Test
- Mold Cell Swelling Force Monitoring(requiring swelling force ＞ accuracy)
- Mold Cell Electrochemical Performance Test
- Adaptable to Swelling Force Testing Requirements for Certain Pouch Cells
Mold Cell Automatic Pressing & Locking Machine-APLM
Introduction: With a maximum pressing force of 10,000 kg, the system allows for freely adjustable pressurization force and pressure holding time. Triaxial simultaneous screw tightening post-pressure application, eliminating uneven pressure distribution caused by manual handling.
Functions:
- Pressure range: 0-10 tons, customizable based on mold dimensions.
- Simultaneously lock/unlock screws during pressure holding to enhance operational efficiency.
- Precisely control screw torque to ensure balanced triaxial pressure and torque.
Battery Electrode Resistance Analyzer-BER Series
Introduction: The BER Series Multifunctional Electrode Resistance Tester integrates a high-precision pressure control system with thickness and resistance measurement capabilities. Utilizing the double-sided controllable pressure disc electrode method, it directly measures the overall through-thickness resistance of practical electrodes, which encompasses the coating resistance, coating-current collector contact resistance, and current collector resistance. It demonstrates strong discrimination capability for the uniformity of the electrodesheet’s electronic conductive network.
Functions:
- Direct measurement of the true through-thickness resistance of practical electrodes – including coating resistance, coating-current collector contact resistance, and current collector resistance.
- Separate voltage/current terminals to eliminate inductive interference on voltage sensing, enhancing measurement accuracy.
- Equipped with reference resistance blocks and thickness standards certified by third-party metrology institutes.
High-throughput Pressure & Electric Coupling Test System
Introduction: A comprehensive solution combining temperature control, electrochemical performance evaluation, and pressure testingmodules, designed to perform pressurized tests on pouch cells and mold battery samples under room temperature (RT) to 80℃ conditions. The system features 5-layer drawer type sample carrier for effortless operation, enabling seamless integration of pressure application and electrochemical measurements across varying temperatures.
Application Scenarios:
- High-throughput mold cell test
- High-throughput pressurized test of pouch cell
Features:
- RT~80°C, Meet multi-scenario testing.
- Unique circulation air duct design, excellent temperature uniformity.
- High-throughput design, supporting simultaneous testing of up to 80 mold batteries or 80 pouch batteries.
- 0.01%F.S. High precision voltage and current control for rapid life evaluation.
- EIS/LSV/CV/P|TT/GITT/ and Conventional electrochemical performance.
- Automated Pressuring & Lock System reducing operational workload.
In-Situ Cell Swelling Analyzer 20T-SWE2T00
Introduction: This 20T high-precision thermal testing platform features a robust metal/insulating material frame for mechanica stability and electrical insulation. lt integrates servo-driven pressure control, high-precision thickness monitor ingand a charge/discharge system for in-situ cell force and thickness analysis.
Features:
- Auto-controlled lifting.
- Transparent window for real-time battery state observation.
- Integrated protective cover to isolate external interference.
- High-precision thickness sensor (measuring initial thickness and deformation).
- Cell temperature control (-20°c to 85°c), synchronized with charge/discharge equipment via host software.
- Automated data acquisition (time, thickness, pressure, temperature) with realtime display and export(Excel/CSV/TXT)
- Safety protection: Halt testing and trigger alerts if parameters exceed predefined thresholds.
In-Situ Cell Swelling Analyzer 60T-ASST60TT
Introduction: The 60T In-Situ Cell Swelling Analyzer features a temperature-controlled thermal platform (35-85℃) with a robustmetal/stainless-steel frame. lt integrates hydraulic pressure regulation, real-time thickness monitoring, and charge/discharge capabilities for in-situ analysis of cell expansion dynamics.
Features:
- Supports temperature control ranging from 35-85°c, for swelling test at high-temperature.
- Constant Pressure Mode & Constant Gap Mode.
- Automated data acquisition (time, thickness, pressure, temperature) with realtime display and export(Excel/CSV/TXT)
- Safety protection: Halt testing and trigger alerts if parameters exceed predefined thresholds.
