Improve production yields with faster and deeper battery diagnostic
ReJoule high voltage electrochemical impedance spectroscopy (EIS) solutions can provide the quality measurements at end of line and in the field that guarantees lifetime quality, performance, and safety.
Who benefits: Battery Manufacturers, OEMs and certification labs
Problems: Battery manufacturing demands extreme precision to achieve target yield and long-term performance. However, poor cell quality or improper assembly can lead to:
Billion-dollar recalls
Battery system failures
Degradation hot spots
These issues not only reduce production yield but also undermine safety and customer trust.
Our Solution vs others: Many battery test equipment manufacturers rely on AC internal resistance (ACIR) measurements, which are limited in detecting subtle manufacturing defects. ReJoule’s technology, however, uses EIS, a noninvasive, highly sensitive method that captures 42 unique data points across a wide frequency range, uncovering issues ACIR cannot detect. This enables faster, more accurate diagnostics, reducing testing time and accelerating actionable insights. BattScan can evaluate entire modules and packs improving efficiency, reliability, and battery value.
Data gathered by ReJoule technology - Nyquist plot deviations of multiple cylindrical cells in a sample 3S3P battery pack configuration
Integrated Quality Control
ReJoule has integrated battery management system (BMS) capabilities into its high-voltage EIS measurement system. This enables:
Cell-level quality measurements even after cells are assembled into a battery system.
BMS sensing quality control checks, ensuring monitoring accuracy.
Battery assembly QA, using BMS data to validate pack integrity and performance.
Impact
Reducing quality-related losses: lowering defect rates and minimizing costly recalls.
Improving lifetime performance: identifying degradation trends early to enhance reliability.
Strengthening brand trust and compliance: giving OEMs and manufacturers confidence in product quality and safety.