Bio-Logic MPG2 Multi-Channel Battery Testing System

Overview

The Bio-Logic MPG2 Multi-Channel Battery Testing System is a research-grade electrochemical workstation engineered for high-precision, long-term galvanostatic and potentiostatic characterization of energy storage devices. Built upon the proven MacPile platform and significantly enhanced in hardware architecture and software integration, the MPG2 implements a true modular bipotentiostat/galvanostat design—each of its 16 independently isolated channels functions as a full-featured, standalone potentiostat with programmable current compliance up to ±10 A when equipped with optional high-current modules (±2 A or ±5 A). Its core measurement principle relies on digital feedback control of current and potential with real-time analog-to-digital conversion at 200 kS/s, enabling accurate capture of transient electrochemical responses during dynamic load profiles. Designed specifically for academia and industrial R&D labs focused on next-generation battery chemistries—including Li-ion, Li-polymer, Li–air, Ni–MH, and supercapacitors—the MPG2 supports both fundamental interfacial kinetics studies and applied cycle-life validation under realistic operating conditions.

Key Features

• 16 fully isolated, synchronized electrochemical channels—each configurable as potentiostat, galvanostat, or zero-resistance ammeter (ZRA)
• Standard current range: ±100 mA per channel; expandable to ±2 A or ±5 A via field-replaceable current modules
• Ultra-low current resolution of 760 pA and potential accuracy of ±5 µV, critical for detecting subtle side reactions and SEI evolution
• Potentiostatic range of ±10 V with voltage resolution down to 5 µV (dynamic range adjustment enabled)
• Electrochemical Impedance Spectroscopy (EIS) coverage from 10 µHz to 20 kHz, supporting low-frequency diffusion analysis and aging diagnostics
• Real-time data acquisition at 200,000 points per second, ensuring fidelity in pulse-based techniques such as PITT, GITT, CLD, and CPW
• Integrated fixed battery test fixture with standardized mechanical alignment for reproducible cell mounting and thermal management compatibility
• Hardware-triggered synchronization across all channels for multi-cell comparative testing under identical environmental conditions

Sample Compatibility & Compliance

The MPG2 accommodates standard coin cells (CR2032, CR2025), pouch cells, cylindrical formats (18650, 21700), and custom three-electrode configurations. Its low-noise analog front-end and guarded signal paths meet stringent requirements for low-current measurements in solid-state electrolyte and lithium-metal anode research. The system complies with ISO 12100 (functional safety of machinery), IEC 61000-4-3 (EMC immunity), and supports audit-ready operation under GLP and GMP frameworks. Full traceability—including timestamped parameter logs, user authentication, and electronic signature capability—is enabled via EC-Lab® software compliant with FDA 21 CFR Part 11 requirements for regulated environments.

Software & Data Management

Controlled exclusively by Bio-Logic’s EC-Lab® v12.x software suite, the MPG2 provides unified scripting (via Python API), automated method sequencing, and built-in analysis modules for differential capacity (dQ/dV), state-of-charge vs. open-circuit voltage (SOC–OCV), and EIS equivalent circuit fitting (including transmission line models for porous electrodes). Raw data is stored in vendor-neutral .mpt format (ASCII-based, self-documenting metadata), ensuring long-term archival integrity and third-party interoperability with MATLAB, Python (pymatgen, impedance.py), and OriginLab. All experimental parameters, instrument configuration states, and user actions are logged with cryptographic hashing for full chain-of-custody documentation.

Applications

• Long-term cycling stability assessment of cathode/anode materials under variable C-rates and temperature gradients
• In-situ and operando investigation of interfacial charge transfer resistance using multi-frequency EIS
• Diffusion coefficient quantification via Galvanostatic Intermittent Titration Technique (GITT) and Potentiostatic Intermittent Titration Technique (PITT)
• Charge/discharge asymmetry analysis in Li–S and Li–air systems through controlled potential windows and current pulses
• Multi-cell parallel screening for electrolyte formulation optimization and separator performance benchmarking
• Supercapacitor capacitance retention and leakage current profiling over extended hold periods

FAQ

Is the MPG2 compatible with third-party cell holders or environmental chambers?
Yes—the MPG2 features standard BNC and SMB connectors with programmable trigger I/O, enabling seamless integration with commercial climate chambers, pressure cells, and custom fixtures via TTL or analog synchronization signals.
Can individual channels operate with different current ranges simultaneously?
Yes—each channel retains independent hardware configuration; one may run at ±100 mA while another uses a ±5 A module, all under synchronized timing control.
Does the system support real-time impedance monitoring during galvanostatic cycling?
Yes—EC-Lab® allows superimposed EIS (e.g., single-sine or multi-sine) at user-defined intervals during constant-current charge/discharge, with automatic pause/resume logic and data co-registration.
What is the warranty and service coverage for the MPG2 outside the EU?
Bio-Logic provides a 24-month limited warranty with global technical support via authorized service centers; calibration certificates traceable to NIST standards are included with initial delivery.