Biocompatible ionic liquid-biopolymer electrolyte-enabled thin and compact magnesium-air batteries.
Data(s) |
10/12/2014
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Resumo |
With the surge of interest in miniaturized implanted medical devices (IMDs), implantable power sources with small dimensions and biocompatibility are in high demand. Implanted battery/supercapacitor devices are commonly packaged within a case that occupies a large volume, making miniaturization difficult. In this study, we demonstrate a polymer electrolyte-enabled biocompatible magnesium-air battery device with a total thickness of approximately 300 μm. It consists of a biocompatible polypyrrole-para(toluene sulfonic acid) cathode and a bioresorbable magnesium alloy anode. The biocompatible electrolyte used is made of choline nitrate (ionic liquid) embedded in a biopolymer, chitosan. This polymer electrolyte is mechanically robust and offers a high ionic conductivity of 8.9 × 10(-3) S cm(-1). The assembled battery delivers a maximum volumetric power density of 3.9 W L(-1), which is sufficient to drive some types of IMDs, such as cardiac pacemakers or biomonitoring systems. This miniaturized, biocompatible magnesium-air battery may pave the way to a future generation of implantable power sources. |
Identificador | |
Idioma(s) |
eng |
Publicador |
American Chemical Society |
Relação |
http://dro.deakin.edu.au/eserv/DU:30070471/t042852-forsyth-biocompatibleionic-2014.pdf http://www.dx.doi.org/10.1021/am505985z http://www.ncbi.nlm.nih.gov/pubmed/25380306 |
Direitos |
2014, American Chemical Society |
Palavras-Chave | #Mg−air batteries #biocompatible ionic liquid #chitosan #integrated solid-state batteries #polypyrrole #Mg-Air batteries #Science & Technology #Technology #Nanoscience & Nanotechnology #Materials Science, Multidisciplinary #Science & Technology - Other Topics #Materials Science #POLYPYRROLE ELECTRODES #OXYGEN REDUCTION #DRUG-DELIVERY #BIOMATERIALS #TEMPERATURE #POLYMERS #DEVICES #CATHODE #SYSTEM |
Tipo |
Journal Article |