Solartron Analytical SI-9300R High-Power, High-Precision Electrochemical Workstation for Energy Device Testing

Overview

The Solartron Analytical SI-9300R is a high-power, multi-channel electrochemical workstation engineered for rigorous characterization and lifetime evaluation of next-generation energy storage devices—including lithium-ion pouch cells, prismatic modules, and small EV battery packs. Unlike conventional potentiostats or galvanostats, the SI-9300R integrates true bidirectional power electronics with real-time impedance spectroscopy (EIS), enabling simultaneous galvanostatic/potentiostatic control and dynamic impedance acquisition during cycling. Its architecture is grounded in Couette-type current regulation and fluxgate-based current sensing—principles that ensure metrological traceability, thermal stability, and minimal drift across extended test durations. Designed explicitly for industrial R&D labs, battery recycling facilities, and OEM validation centers, the system supports both fundamental electrochemical kinetics studies and high-throughput SoH (State of Health) screening under ISO 12405-4, IEC 62660-2, and UL 1642-compliant protocols.

Key Features

• Energy-Recycling Architecture: Patented regenerative power topology recovers >90% of discharge energy—either feeding it back into the AC grid or redistributing it dynamically among active channels. This reduces net power draw, eliminates dedicated cooling infrastructure for power electronics, and enables 3× higher channel density per rack unit compared to non-regenerative systems.
• Multi-Range Fluxgate Current Sensing: Three calibrated current ranges (2 A, 20 A, 300 A) coupled with fluxgate transducers deliver ±0.03% full-scale accuracy with <0.005% thermal drift per °C—five times more stable than shunt-based measurement at elevated ambient temperatures.
• Onboard EIS per Channel: Each of the up to 40 independent channels incorporates Solartron’s proprietary FRA (Frequency Response Analyzer) engine, supporting full-spectrum EIS from 10 mHz to 10 kHz at 1 mHz resolution, with real-time equivalent circuit fitting (e.g., R_Ω/R_ct/CPE) without external hardware or multiplexing delays.
• Dual Auxiliary Voltage Inputs: Two synchronized voltage measurement channels per main channel enable differential electrode-level monitoring—critical for identifying anode/cathode degradation asymmetry during cycling or impedance mapping.
• Direct-to-NAS Data Acquisition: Hard-disk-direct write architecture bypasses host PC memory and CPU for data logging. All time-stamped current, voltage, temperature (via PoE-enabled 16-channel units), and EIS spectra are written concurrently to network-attached storage—ensuring zero data loss during PC reboot, crash, or network interruption.

Sample Compatibility & Compliance

The SI-9300R accommodates 2- and 4-terminal cell configurations, supporting soft-pack, prismatic, and cylindrical formats up to 10 V nominal and 200 A continuous. Its ±10 V polarization window covers single-cell testing through small modular assemblies (e.g., Nissan LEAF Gen2 4-module packs). All firmware and software comply with FDA 21 CFR Part 11 requirements for electronic records and signatures, including full audit trail logging, user role-based access control, and immutable raw-data archiving. Calibration certificates are NIST-traceable; EIS measurements adhere to ASTM E2977–22 guidelines for electrochemical impedance instrumentation validation.

Software & Data Management

CorrWare™ v9.5 (included) provides scriptable test sequencing, real-time SoH estimation via validated algorithms (including the Warwick University–developed Nissan LEAF SoH model), and automated report generation compliant with GLP/GMP documentation standards. The software supports concurrent operation of all channels with synchronized timestamping (±10 µs inter-channel skew). Raw binary data (BDF format) is stored alongside human-readable CSV exports and metadata-enriched HDF5 archives. Integration with MATLAB, Python (via PyCorrWare SDK), and LabVIEW is native; OPC UA and MQTT interfaces enable seamless connection to MES and digital twin platforms.

Applications

• High-fidelity cycle life mapping of Si-anode and solid-state batteries under variable C-rates and temperature profiles
• Real-time SoH grading of retired EV traction batteries for second-life repurposing (validated at ≤±3% error vs. reference pulse-power testing)
• In situ EIS tracking during formation cycling to detect SEI nucleation kinetics and interfacial resistance evolution
• Dynamic load emulation for BMS algorithm validation using programmable current profiles with sub-millisecond response
• Thermal-electrochemical coupling studies via synchronized PoE temperature inputs (Type K/J thermocouples) and voltage/current feedback loops

FAQ

What is the maximum continuous current per channel?
Each channel delivers up to 200 A continuous, with 300 A available as a 60-second pulse.
Can the system perform EIS during galvanostatic cycling?
Yes—real-time superimposed EIS (10 mHz–10 kHz) is supported on every channel without interrupting DC current control.
Is temperature measurement synchronized with electrochemical data?
Yes—PoE-powered temperature units provide hardware-timestamped readings aligned to within ±10 µs of current/voltage samples.
How does the energy-recycling feature impact facility infrastructure?
It eliminates need for dedicated HVAC for power electronics, reduces peak demand by >85%, and allows standard 208 V/30 A circuits to support full 40-channel 42U racks.
Does the system support ASTM D7282 or ISO 12405-4 test protocols out of the box?
Yes—preconfigured test templates and compliance reporting modules are included for both standards, with configurable pass/fail thresholds and statistical process control charts.