Towards extending sensor node lifetime with printed supercapacitors

Andrey Somov, Christine C. Ho, Roberto Passerone, James W. Evans, Paul K. Wright

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

23 Citations (Scopus)

Abstract

The realization of completely autonomous wireless sensor networks (WSN) has been hindered with difficulties in implementing a truly "perpetual" power supply. Typically, the generic power supply for a sensor node is a battery, which is limited in cycle life. Current research in energy scavenging technology, along with the use of innovative energy storage devices such as supercapacitors, has demonstrated the improvement of sensor node lifetime characteristics. In this paper, we present the experimental results on a novel electrochemical supercapacitor (with improved electrical characteristics) manufactured using a "direct write" deposition tool. This technology allows one to print the supercapacitors with capacitances above 40 mF/cm 2 directly on board of a sensor node covering any unoccupied surface area. Experiments on the printed storage chrarging with (AC) and (DC) based ambient energy via a specially developed generic energy scavenging module (ESM), and 24-hours deployment with a typical sensor node have showed promise towards extending sensor node lifetime.

Original languageEnglish
Title of host publicationWireless Sensor Networks - 9th European Conference, EWSN 2012, Proceedings
Pages212-227
Number of pages16
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event9th European Conference on Wireless Sensor Networks, EWSN 2012 - Trento, Italy
Duration: 15 Feb 201117 Feb 2011

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7158 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference9th European Conference on Wireless Sensor Networks, EWSN 2012
Country/TerritoryItaly
CityTrento
Period15/02/1117/02/11

Keywords

  • direct write
  • electrochemical capacitor
  • energy scavenging
  • power supply and management
  • wireless sensor network

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