A Fully Integrated, Printed, Self-Rechargeable Wireless Sensor Node for Engine and Motor Condition MonitoringRichard Winslow, Chun Hsing Wu, Bernard Kim, Martin Cowell,Prof. Malcolm Keif, Prof. Ana Claudia Arias, Prof. James W. Evans, Prof. Paul K. Wright

2Motivation

Too large, requires full infrastructure

Printed devices satisfy necessary form factors

Prediction of Equipment Failure Marvell Nanofabrication Laboratory

3

Cu

rren

t (m

A)

Time (ms)

Design and Target Specifications

Thermoelectric Voltage (V)

Thermoelectric Power (mW)

1.6 0.35

Target prototype specificationsCurrent draw from Texas Instruments

MSP430 radio

Sleep mode draw: 0.6 mADuty Cycle < 1% of Operating Time

Battery Capacity (mAh) Capacitor Power (mW)

0.80 51

4Device Components

Printed Energy Generation and Storage

Thermoelectric Generator Battery Supercapacitor

Off-the-Shelf Components

Texas Instruments MSP430 Sensor

Printed Traces

Conductive silver ink

5Manufacturing Scale-Up & Approach

pressure line

vacuum & heater lines

stage

printerhead

Custom Dispenser Printer

Roll-to-roll PrintingAqueous-based cathode

on stainless steel foil webOrganic solvent-based cathode inks on stainless steel foil web

Dispenser Supercapacitor

Flexographically Printed Cathode

6Summary

The authors thank the FlexTech Alliance for supporting this research, and the California Energy Commission for supporting this research under award 500-01-43. We would also like to thank Dr. Zuoqian Wang, Dr. Deepa Madan, Dr. Jay Keist, Prof. Xiaoying Rong (Cal Poly-SLO), and Dr. Vince Battaglia (LBNL), for their contributions.

Acknowledgements

• Designing wireless system for sensing vibrations in motors and pumps to monitor their condition

• Scavenging thermal energy from nearby pipes

• Integrating three printed energy generation and storage components onto a single substrate

• Developing metrics and procedures to scale individual devices to high-throughput manufacturing

• Investigating balance between ink manufacturing printability, and electrochemical performance and power production

Thank You!

Prof. Paul K. WrightProf. James W. EvansProf. Ana Claudia AriasProf. Malcolm Keif

Principal Investigators