Cobalt phosphate-based supercapattery as alternative power source for implantable medical devices

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dc.contributor.authorShao, Han
dc.contributor.authorPadmanathan, Narayanasamy
dc.contributor.authorMcNulty, David
dc.contributor.authorO'Dwyer, Colm
dc.contributor.authorRazeeb, Kafil M.
dc.contributor.funderSeventh Framework Programmeen
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2019-01-08T12:00:25Z
dc.date.available2019-01-08T12:00:25Z
dc.date.issued2018-12-26
dc.date.updated2019-01-05T18:15:38Z
dc.description.abstractThe supercapattery is an ideal energy storage device that combines excellent power density and rate capability of supercapacitors and the greater energy density of batteries. With superior storage capacity and long life, this device can be employed in next-generation artificial cardiac pacemakers as a rechargeable energy source for the lifetime of the pacemaker (at least 15-20 years). However, current hybrid energy storage devices are often limited by less than ideal performance of either the supercapacitor or battery. Here, we develop a low cost and scalable prototype supercapattery with cobalt phosphate as positive and activated carbon as negative electrodes. This positive electrode exhibits a maximum specific capacity of 215.6 mAh g-1 (≈1990 F g-1), ever reported in a metal phosphate based electrode. The supercapattery delivers a high energy density of 3.53 mWh cm-3 (43.2 Wh kg-1) and a power density of 425 mW cm-3 (5.8 kW kg-1). Furthermore, the device can retain 79% voltage even after 4 minutes self-discharge, enough to provide power during cardiac emergencies. This hybrid device provide excellent performance and stability under physiological temperature range (35-41 °C), retaining 68% of specific capacity after 100,000 cycles at room temperature (25 °C) and up to 81.5% after 20,000 cycles at 38 °C, demonstrating its effectiveness as a potential power source for the next-generation implanted medical devices.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationShao, H., Padmanathan, N., McNulty, D., O’Dwyer, C. and Razeeb, K. M. (2019) 'Cobalt Phosphate-Based Supercapattery as Alternative Power Source for Implantable Medical Devices', ACS Applied Energy Materials, 2(1), pp. 569-578. doi: 10.1021/acsaem.8b01612en
dc.identifier.doi10.1021/acsaem.8b01612
dc.identifier.endpage578en
dc.identifier.issn2574-0962
dc.identifier.journaltitleACS Applied Energy Materialsen
dc.identifier.startpage569en
dc.identifier.urihttps://hdl.handle.net/10468/7270
dc.identifier.volume2
dc.language.isoenen
dc.publisherAmerican Chemical Society, ACSen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP1::NMP/604360/EU/MANpower - Energy Harvesting and Storage for Low Frequency Vibrations/MANPOWERen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Technology and Innovation Development Award (TIDA)/14/TIDA/2455/IE/SweatSens: Biofouling Mitigated Sweat pH and Glucose Sensing/en
dc.relation.urihttps://pubs.acs.org/doi/10.1021/acsaem.8b01612
dc.rights© 2018 American Chemical Society. This article is made available for a limited time sponsored by ACS under the ACS Free to Read License, which permits copying and redistribution of the article for non-commercial scholarly purposes.en
dc.rights.urihttps://pubs.acs.org/page/policy/freetoread/index.htmlen
dc.subjectCobalt phosphateen
dc.subjectNanomaterialen
dc.subjectSupercapatteryen
dc.subjectSupercapacitoren
dc.subjectElectrochemicalen
dc.subjectEnergy storage deviceen
dc.titleCobalt phosphate-based supercapattery as alternative power source for implantable medical devicesen
dc.typeArticle (peer-reviewed)en
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