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2020-08-21Zeitschriftenartikel DOI: 10.18452/22097
A Co- and Ni-Free P2/O3 Biphasic Lithium Stabilized Layered Oxide for Sodium-Ion Batteries and its Cycling Behavior
dc.contributor.authorYang, Liangtao
dc.contributor.authorLopez del Amo, Juan Miguel
dc.contributor.authorShadike, Zulipiya
dc.contributor.authorBak, Seong-Min
dc.contributor.authorBonilla, Francisco
dc.contributor.authorGalceran Mestes, Montserrat
dc.contributor.authorNayak, Prasant
dc.contributor.authorBuchheim, Johannes
dc.contributor.authorYang, Xiao-Qing
dc.contributor.authorRojo, Teófilo
dc.contributor.authorAdelhelm, Philipp
dc.date.accessioned2020-10-30T10:09:05Z
dc.date.available2020-10-30T10:09:05Z
dc.date.issued2020-08-21none
dc.identifier.other10.1002/adfm.202003364
dc.identifier.urihttp://edoc.hu-berlin.de/18452/22757
dc.description.abstractCobalt‐ and nickel‐free cathode materials are desirable for developing low‐cost sodium‐ion batteries (SIBs). Compared to the single P‐type and O‐type structures, biphasic P/O structures become a topic of interest thanks to improved performance. However, the added complexity complicates the understanding of the storage mechanism and the phase behavior is still unclear, especially over consecutive cycling. Here, the properties of biphasic P2(34%)/O3(60%) Na0.8Li0.2Fe0.2Mn0.6O2 and its behavior at different states of charge/discharge are reported on. The material is composed of single phase O3 and P2/O3 biphasic particles. Sodium occupies the alkali layers, whereas lithium predominantly (95%) is located in the transition metal layer. An initial reversible capacity of 174 mAh g‐1 is delivered with a retention of 82% dominated by Fe3+/Fe4+ along with contributions from oxygen and partial Mn3+/4+ redox. Cycling leads to complex phase transitions and ion migration. The biphasic nature is nevertheless preserved, with lithium acting as the structure stabilizer.eng
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY-NC 4.0) Attribution-NonCommercial 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectenergy storageeng
dc.subjectlayered oxideseng
dc.subjectpositive electrode materialseng
dc.subjectsodium ion batterieseng
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitennone
dc.subject.ddc530 Physiknone
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftennone
dc.titleA Co- and Ni-Free P2/O3 Biphasic Lithium Stabilized Layered Oxide for Sodium-Ion Batteries and its Cycling Behaviornone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/22757-0
dc.identifier.doihttp://dx.doi.org/10.18452/22097
dc.type.versionpublishedVersionnone
local.edoc.container-titleAdvanced functional materialsnone
local.edoc.pages11none
local.edoc.type-nameZeitschriftenartikel
local.edoc.institutionMathematisch-Naturwissenschaftliche Fakultätnone
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-publisher-nameWiley-VCHnone
local.edoc.container-publisher-placeWeinheimnone
local.edoc.container-volume30none
local.edoc.container-issue42none
dc.description.versionPeer Reviewednone
local.edoc.container-articlenumber2003364none
dc.identifier.eissn1616-3028

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