Printable on-chip micro battery

Research output: Contribution to journalArticlepeer-review


This paper reports an easy-to-fabricate micro battery that can be directly printed on a bio-sensing device such as an immunoreaction-based disposable complementary metal oxide semiconductor bio-sensing chip. The printed Mg and AgCl films were used as both cathode and anode materials, while the inspection solution for the bio-sensing was utilized as an electrolyte, which simplified the structure of the battery. A micro battery fabricated on the printed circuit board, in which each electrode size was 3 × 3 mm2, could generate an open circuit voltage as high as 1.58 V, a maximum power as high as 1.4 mW and a total stored energy as high as 400 mJ. Wireless sensor test platforms self-powered by the developed on-chip battery successfully worked in a 0.14 M NaCl solution, and digital data could be successfully transferred using both optical and capacitive coupling methods.

Original languageEnglish
Pages (from-to)1416-1421
Number of pages6
JournalIEEJ Transactions on Electrical and Electronic Engineering
Issue number9
Publication statusPublished - 2019 Sep


  • disposable bio-sensing chip
  • on-chip power source
  • screen-printed Mg/AgCl battery

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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