Methylammonium Lead Bromide Perovskite Battery Anodes Reversibly Host High Li-Ion Concentrations
View/ Open
Metadata
Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7053
comunitat-uji-handle3:10234/8639
comunitat-uji-handle4:
INVESTIGACIONMetadata
Title
Methylammonium Lead Bromide Perovskite Battery Anodes Reversibly Host High Li-Ion ConcentrationsDate
2017-04Publisher
American Chemical SocietyBibliographic citation
VICENTE, Nuria; GARCIA-BELMONTE, Germà. Methylammonium lead bromide perovskite battery anodes reversibly hostType
info:eu-repo/semantics/articlePublisher version
http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.7b00189Version
info:eu-repo/semantics/acceptedVersionSubject
Abstract
Ions migrate through the hybrid halide perovskite lattice, allowing for a variety of electrochemical applications as perovskite-based electrodes for batteries. It is still unknown how extrinsic defects such as lithium ... [+]
Ions migrate through the hybrid halide perovskite lattice, allowing for a variety of electrochemical applications as perovskite-based electrodes for batteries. It is still unknown how extrinsic defects such as lithium ions interact with the hybrid perovskite structure during the charging process. It is shown here that Li+ intake/release proceeds by topotactic insertion into the hybrid perovskite host, without drastic structural alterations or rearrangement. Even the perovskite electronic band structure remains basically unaltered upon cycling. The occurrence of conversion or alloying reactions producing metallic lead is discarded. Stable specific capacity 200 mA h g-1 is delivered, which entails outstanding Li-ion molar concentration, x in LixCH3NH3PbBr3, approaching 3. Slight distortions of the perovskite lattice upon cycling explain the highly reversible Li+ intercalation reaction that also exhibits an excellent rate capability. [-]
Investigation project
Generalitat Valenciana (PROMETEO/2014/020) ; Ministerio de Economía y Competitividad (MINECO) of Spain (MAT2016-76892-C3-1-R) ; University Jaume I (FPI Fellowship Program PREDOC/2015/54).Rights
© 2017 American Chemical Society
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
This item appears in the folowing collection(s)
- INAM_Articles [506]
- QUIO_Articles [691]