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Water-proof, electrolyte-nonvolatile, and flexible Li-Air batteries via O2-Permeable silica-aerogel-reinforced polydimethylsiloxane external membranes
- Source :
- Energy Storage Materials. 27:297-306
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Although aprotic Li-air batteries offer an attractive option for achieving ultrahigh energy density of electrochemical energy storage devices, the now-established system has so far fallen short of its potential due to a daunting challenge related to its open configuration, which results in not only the rapid corrosion of Li metal anodes but also the gradual evaporation of organic liquid electrolytes. Here, we show that these issues can be well addressed by protecting the Li-air battery with a new O2-permeable silica-aerogel-reinforced polydimethylsiloxane external membrane (OPSP). The highly flexible OPSP basically benefiting from hydrogen-bond cross-linking can be constructed in situ on any substrate with particularly desirable properties such as being water-/electrolyte-proof, O2-permeable, high thermotolerance, and transparent, which allows stable cycling of coin-type and flexible Li-air batteries under harsh conditions, such as a highly volatile DMSO electrolyte (over 660 h), a humid air (O2) atmosphere (over 700 h) or circumstances in air (O2)-saturated liquid water (over 25 h). This work could potentially open a new research direction in developing O2-permeable membranes through hydrogen-bond cross-linking for the unfettered design of metal-air batteries.
- Subjects :
- Battery (electricity)
Materials science
Polydimethylsiloxane
Renewable Energy, Sustainability and the Environment
Evaporation
Energy Engineering and Power Technology
Nanotechnology
Aerogel
02 engineering and technology
Electrolyte
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Anode
Corrosion
chemistry.chemical_compound
Membrane
chemistry
General Materials Science
0210 nano-technology
Subjects
Details
- ISSN :
- 24058297
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Energy Storage Materials
- Accession number :
- edsair.doi...........395fa64029f329d2367102018bb679bc