Ultra-thin flexible screen printed rechargeable polymer battery for wearable electronic applications

Tehrani, Z., Korochkina, T., Govindarajan, S., Thomas, D.J., O’Mahony, J., Kettle, J., Claypole, T.C. and Gethin, D.T. (2015) Ultra-thin flexible screen printed rechargeable polymer battery for wearable electronic applications. Organic Electronics, 26, pp. 386-394. (doi: 10.1016/j.orgel.2015.08.007)

Abstract

This research has demonstrated how an ultra-thin rechargeable battery technology has been fabricated using screen printing technology. The screen printing process enabled the sequential deposition of current collector, electrode and separator/electrolyte materials onto a polyethylene terephthalate (PET) substrate in order to form both flexible and rechargeable electrodes for a battery application. The anode and cathode fabricated were based on the conducting poly (3,4-ethylenedioxythiophen): poly (styrene sulfonate) (PEDOT: PSS) and polyethyleneimine (PEI) which were combined to form the electrodes. The difference in the oxidation level between the two electrodes produced an open circuit voltage of 0.60 V and displayed a practical specific capacity of 5.5 mAh g−1. The battery developed had an active surface area of 400 mm2 and a device thickness of 440 μm. The chemistry developed during this study displayed long-term cycling potential and proves the stability of the cells for continued usage. This technology has direct uses in future personal wearable electronic devices.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Kettle, Professor Jeff
• Authors: Tehrani, Z., Korochkina, T., Govindarajan, S., Thomas, D.J., O’Mahony, J., Kettle, J., Claypole, T.C., and Gethin, D.T.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Organic Electronics
• Publisher: Elsevier
• ISSN: 1566-1199
• ISSN (Online): 1878-5530
• Published Online: 14 August 2015