A method of manufacturing a printed sensor for measuring electrical quantities in aggressive electrochemical environment, and a printed sensor manufactured in this way

A hybrid manufacturing method using carbon nanoparticle-based inks and laser ablation addresses the challenges of sensor integration in battery cells, achieving precise and scalable sensor production with high conductivity and stability.

WO2026130702A1PCT designated stage Publication Date: 2026-06-25UNIVERZITA PARDUBICE +2
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
UNIVERZITA PARDUBICE
Filing Date
2024-12-19
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing methods for manufacturing sensors for measuring electrical quantities in aggressive electrochemical environments, such as battery electrolytes, face challenges including high costs, limited scalability, and poor reproducibility due to the use of conventional manufacturing processes and incompatible inks, leading to suboptimal sensor integration and performance.

Method used

A hybrid manufacturing method involving the use of carbon nanoparticle-based inks printed on flexible substrates, followed by laser ablation to create precise interdigital electrodes with narrow gaps, and an encapsulating layer to protect the sensor from the aggressive environment, ensuring high conductivity and electrochemical stability.

Benefits of technology

The method enables the production of sensors with improved reproducibility and scalability, achieving precise gap formation and high conductivity, suitable for industrial battery cell integration with reduced environmental impact.

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Abstract

The invention describes a method of manufacturing a printed sensor for measuring electrical quantities and a printed sensor manufactured in this way according to the present invention. The core of the invention is that a printable, electrically conductive ink is prepared in the form of a dispersion based on carbon nanoparticles of the group consisting of graphene, carbon nanotubes, PCF (pitch-based carbon fiber), GNP (graphene nanoplatelets), graphite, carbon black, or its combination, which is printed on a carrier substrate (1) to form an electrically conductive layer, which is dried and then selectively laser ablated to form a collector system (4) in the form of interdigital electrodes with gaps between conductive lines of less than 140 µm, or preferably less than 35 um, on which the active layer (8) and the encapsulating covering layer (9) of the printed sensor are then printed.
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