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Printable on‐chip micro battery
Author(s) -
Tsukamoto Takashiro,
Tanaka Shuji
Publication year - 2019
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.22944
Subject(s) - battery (electricity) , anode , chip , materials science , electrical engineering , printed circuit board , cathode , optoelectronics , capacitive sensing , voltage , electrode , power (physics) , engineering , chemistry , physics , quantum mechanics
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 mm 2 , 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. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.