Journal
JOURNAL OF POWER SOURCES
Volume 199, Issue -, Pages 367-372Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2011.09.076
Keywords
Printed battery; Alkaline; Primary; silver-zinc; Impedance spectroscopy
Funding
- National Science Foundation
- World Class University Program at Sunchon National University
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0925386] Funding Source: National Science Foundation
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The increasing deployment of ubiquitous electronic systems such as distributed sensor networks and RFID tags has resulted in a need for high energy microbatteries. Printed batteries are particularly interesting because of the potential for low material loss, low processing cost, and ease of integration into low-profile flexible electronic systems. We have developed a two-step printing technique to deposit an alkaline electrolyte for a printed silver-zinc battery. The fabricated batteries are characterized with galvanostatic measurements and electrochemical impedance spectroscopy using a three electrode setup with a zinc reference electrode. High silver utilization of 94 +/- 3% and an areal energy density of 4.1 +/- 0.3 mWh cm(-2) are achieved with a 57:29:14 H2O:KOH:PEO (M-v = 600,000) electrolyte at a C/2 discharge rate 1.8 mA cm(-2). (C) 2011 Elsevier B.V. All rights reserved.
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