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Project cooperationUpdated on 5 November 2026

Zero-Power Passive Event Detector: Next-Gen Autonomous Alarm Technology

KTT Technician at IFAE at IFAE

Cerdanyola, Spain

About

Autonomous Zero-Power Event Detection Driven by Phase-Change Materials (PCM)

Technology Overview:

Traditional monitoring sensors continuously drain energy in standby mode, limiting their lifespan and reliability in remote or harsh settings. This patented passive event detection system eliminates standby power consumption entirely—staying dormant until a specific environmental, physical, or chemical threshold is reached.

How It Works:

The device leverages the phase transition of an engineered Phase-Change Material (PCM) to power an integrated electronic module via a liquid-activated battery:

  • Ion-Conductive PCM Configuration: The PCM material acts directly as the activation medium for the liquid-activated battery. Upon reaching the phase change threshold, it activates the power source and immediately powers the electronic module.

  • Non-Ion Conductive PCM Configuration: The PCM functions as a smart thermal or chemical barrier isolating an ion-conductive liquid from the battery. When triggered, the phase transition opens the barrier, allowing the liquid to activate the battery and power the module on demand.

Key Competitive Advantages:

  • True Zero Standby Power: Absolute zero energy consumption during storage or standby mode.

  • Unmatched Reliability & Lifespan: Eliminates battery degradation issues caused by long-term standby power drain.

  • Self-Powered Activation: Generates its own power precisely at the moment the alarming event occurs.

  • Versatile Applications: Fully adaptable to detect temperature spikes/drops, chemical leaks, pressure changes, or structural shifts.

Ideal Target Markets & Applications:

  • Critical Infrastructure & Energy: Pipeline leak detection, remote oil/gas monitoring, and high-voltage gear isolation.

  • Cold Chain & Logistics: Real-time tamper and thermal excursion alerts for pharmaceuticals, vaccines, and perishables.

  • Environmental & Safety Alarms: Early warning systems for hazardous chemical spills, forest fires, or structural failure in remote assets.

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