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2024-03-14Zeitschriftenartikel DOI: 10.18452/29100
Unravelling the Mechanism of Pulse Current Charging for Enhancing the Stability of Commercial LiNi0.5Mn0.3Co0.2O2/Graphite Lithium‐Ion Batteries
dc.contributor.authorGuo, Jia
dc.contributor.authorXu, Yaolin
dc.contributor.authorExner, Moritz
dc.contributor.authorHuang, Xinrong
dc.contributor.authorLi, Yongchun
dc.contributor.authorLiu, Yanchen
dc.contributor.authorWang, Hui
dc.contributor.authorKowal, Julia
dc.contributor.authorZhang, Qi
dc.contributor.authorKristensen, Peter Kjær
dc.contributor.authorWang, Deyong
dc.contributor.authorPedersen, Kjeld
dc.contributor.authorGurevich, Leonid
dc.contributor.authorStroe, Daniel-Ioan
dc.contributor.authorAdelhelm, Philipp
dc.date.accessioned2024-07-10T10:07:23Z
dc.date.available2024-07-10T10:07:23Z
dc.date.issued2024-03-14none
dc.date.updated2024-07-09T19:43:11Z
dc.identifier.issn1614-6832
dc.identifier.issn1614-6840
dc.identifier.urihttp://edoc.hu-berlin.de/18452/29719
dc.description.abstractThe key to advancing lithium-ion battery (LIB) technology, particularly with respect to the optimization of cycling protocols, is to obtain comprehensive and in-depth understanding of the dynamic electrochemical processes during battery operation. This work shows that pulse current (PC) charging substantially enhances the cycle stability of commercial LiNi0.5Mn0.3Co0.2O2 (NMC532)/graphite LIBs. Electrochemical diagnosis unveils that pulsed current effectively mitigates the rise of battery impedance and minimizes the loss of electrode materials. Operando and ex situ Raman and X-ray absorption spectroscopy reveal the chemical and structural changes of the negative and positive electrode materials during PC and constant current (CC) charging. Specifically, Li-ions are more uniformly intercalated into graphite and the Ni element of NMC532 achieves a higher energy state with less Ni─O bond length variation under PC charging. Besides, PC charging suppresses the electrolyte decomposition and continuous thickening of the solid-electrolyte-interphase (SEI) layer on graphite anode. These findings offer mechanistic insights into Li-ion storage in graphite and NMC532 and, more importantly, the role of PC charging in enhancing the battery cycling stability, which will be beneficial for advancing the cycling protocols for future LIBs and beyond.eng
dc.description.sponsorshipOtto Mønsteds Fond http://dx.doi.org/10.13039/501100004209
dc.description.sponsorshipChina Sponsorship Council http://dx.doi.org/10.13039/501100002860
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.subjectaging mechanismeng
dc.subjectlithium‐ion batterieseng
dc.subjectNMC532/graphiteeng
dc.subjectoperando characterizationeng
dc.subjectpulse current chargingeng
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitennone
dc.titleUnravelling the Mechanism of Pulse Current Charging for Enhancing the Stability of Commercial LiNi0.5Mn0.3Co0.2O2/Graphite Lithium‐Ion Batteriesnone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/29719-5
dc.identifier.doihttp://dx.doi.org/10.18452/29100
dc.type.versionpublishedVersionnone
local.edoc.pages14none
local.edoc.type-nameZeitschriftenartikel
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
dc.description.versionPeer Reviewednone
dcterms.bibliographicCitation.doi10.1002/aenm.202400190
dcterms.bibliographicCitation.journaltitleAdvanced energy materialsnone
dcterms.bibliographicCitation.volume14none
dcterms.bibliographicCitation.issue22none
dcterms.bibliographicCitation.articlenumber2400190none
dcterms.bibliographicCitation.originalpublishernameWiley-VCHnone
dcterms.bibliographicCitation.originalpublisherplaceWeinheimnone
bua.departmentMathematisch-Naturwissenschaftliche Fakultätnone

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