Biocompatible ionic liquid-biopolymer electrolyte-enabled thin and compact magnesium-air batteries.

Jia,X, Yang,Y, Wang,C, Zhao,C, Vijayaraghavan,R, MacFarlane,DR, Forsyth,M and Wallace,GG 2014, Biocompatible ionic liquid-biopolymer electrolyte-enabled thin and compact magnesium-air batteries., ACS Appl Mater Interfaces, vol. 6, no. 23, pp. 21110-21117, doi: 10.1021/am505985z.

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Title Biocompatible ionic liquid-biopolymer electrolyte-enabled thin and compact magnesium-air batteries.
Author(s) Jia,X
Forsyth,MORCID iD for Forsyth,M
Journal name ACS Appl Mater Interfaces
Volume number 6
Issue number 23
Start page 21110
End page 21117
Total pages 8
Publisher American Chemical Society
Place of publication Washington, D.C.
Publication date 2014-12-10
ISSN 1944-8252
Keyword(s) Mg−air batteries
biocompatible ionic liquid
integrated solid-state batteries
Mg-Air batteries
Science & Technology
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Science & Technology - Other Topics
Materials Science
Summary 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.
Language eng
DOI 10.1021/am505985z
Field of Research 091205 Functional Materials
Socio Economic Objective 850699 Energy Storage, Distribution and Supply not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, American Chemical Society
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