Na2FeP2O7: a safe cathode for rechargeable sodium-ion batteries
dc.contributor.author | Barpanda, P | en_AU |
dc.contributor.author | Liu, G | en_AU |
dc.contributor.author | Ling, CD | en_AU |
dc.contributor.author | Tamaru, M | en_AU |
dc.contributor.author | Avdeev, M | en_AU |
dc.contributor.author | Chung, SC | en_AU |
dc.contributor.author | Yamada, Y | en_AU |
dc.contributor.author | Yamada, A | en_AU |
dc.date.accessioned | 2014-06-26T03:58:21Z | en_AU |
dc.date.available | 2014-06-26T03:58:21Z | en_AU |
dc.date.issued | 2013-09-10 | en_AU |
dc.date.statistics | 2014-06-26 | en_AU |
dc.description.abstract | Vying for newer sodium-ion chemistry for rechargeable batteries, Na2FeP2O7 pyrophosphate has been recently unveiled as a 3 V high-rate cathode. In addition to its low cost and promising electrochemical performance, here we demonstrate Na2FeP2O7 as a safe cathode with high thermal stability. Chemical/electrochemical desodiation of this insertion compound has led to the discovery of a new polymorph of NaFeP2O7. High-temperature analyses of the desodiated state NaFeP2O7 show an irreversible phase transition from triclinic (P (1) over bar) to the ground state monoclinic (P2(1)/c) polymorph above 560 degrees C. It demonstrates high thermal stability, with no thermal decomposition and/or oxygen evolution until 600 degrees C, the upper limit of the present investigation. This high operational stability is rooted in the stable pyrophosphate (P2O7)(4-) anion, which offers better safety than other phosphate-based cathodes. It establishes Na2FeP2O7 as a safe cathode candidate for large-scale economic sodium-ion battery applications. © 2013, American Chemical Society. | en_AU |
dc.identifier.citation | Barpanda, P., Liu, G. D., Ling, C. D., Tamaru, M., Avdeev, M., Chung, S. C., Yamada, Y., & Yamada, A. (2013). Na2FeP2O7: a safe cathode for rechargeable sodium-ion batteries. Chemistry of Materials, 25(17), 3480-3487. doi:10.1021/cm401657c | en_AU |
dc.identifier.govdoc | 5440 | en_AU |
dc.identifier.issn | 0897-4756 | en_AU |
dc.identifier.issue | 17 | en_AU |
dc.identifier.journaltitle | Chemistry of Materials | en_AU |
dc.identifier.pagination | 3480-3487 | en_AU |
dc.identifier.uri | http://dx.doi.org/10.1021/cm401657c | en_AU |
dc.identifier.uri | http://apo.ansto.gov.au/dspace/handle/10238/5722 | en_AU |
dc.identifier.volume | 25 | en_AU |
dc.language.iso | en | en_AU |
dc.publisher | American Chemical Society | en_AU |
dc.subject | Lithium | en_AU |
dc.subject | Cathodes | en_AU |
dc.subject | Crystals | en_AU |
dc.subject | Chemistry | en_AU |
dc.subject | Iron | en_AU |
dc.subject | Sodium | en_AU |
dc.title | Na2FeP2O7: a safe cathode for rechargeable sodium-ion batteries | en_AU |
dc.type | Journal Article | en_AU |
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