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Anion secondary batteries utilizing a reversible BF4 insertion/extraction two-dimensional Si material
- Source :
- Journal of Materials Chemistry A. 2:7588
- Publication Year :
- 2014
- Publisher :
- Royal Society of Chemistry (RSC), 2014.
-
Abstract
- The development of lightweight, long lasting Li-ion batteries is of great technological importance for hybrid and plug-in hybrid electric vehicles, as well as for power grid applications. Here we report an alternative approach to the use of Li cations, based on the fabrication of BF4 anion rocking-chair-type secondary batteries. For the anode material, we report a Si-based compound, [Si10H8(OCH2CH2NH(CH3)2)2](BF4)2, which is capable of reacting with two BF4 anions per formula unit at a potential of 1.8 V, giving a reversible capacity of 80mA h gā1. This anion battery also showed superior performance under thermal abuse compared with Li-ion batteries. Furthermore, the anion battery is operable at ā30 °C, a temperature at which Li-ion batteries are generally not operable because Li-ions are solvated by coordination with basic organic molecules around this temperature.
- Subjects :
- Battery (electricity)
Supercapacitor
Materials science
Renewable Energy, Sustainability and the Environment
Inorganic chemistry
Organic radical battery
Potassium-ion battery
General Chemistry
Cathode
law.invention
Anode
law
Electrode
General Materials Science
Nanoarchitectures for lithium-ion batteries
Subjects
Details
- ISSN :
- 20507496 and 20507488
- Volume :
- 2
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Chemistry A
- Accession number :
- edsair.doi...........d50bbcd689c0bceeb8e3f114ac55d1b4
- Full Text :
- https://doi.org/10.1039/c4ta00456f