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NMC cathode materials: effect of processing parameters on their functional properties

Nahirniak, Svitlana and Guney, Emre and Saini, Neha and Lontio Fomekong, Roussin and Yuca, Neslihan and Saruhan-Brings, Bilge (2023) NMC cathode materials: effect of processing parameters on their functional properties. XVIII ECerS Conference & Exhibition of the European Ceramic Society, 2-6 July 2023, Lyon, France.

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Abstract

Lithium-Nickel-Manganese-Cobalt-Oxide (so-called NMC) based cathode materials have proven to yield enhanced specific capacity and thermal stability thus, can outperform lithium iron phosphate (LFP) cathodes in many areas, particularly in terms of operational voltage in which LFPbased Li-ion batteries (LIBs) can only output voltages below 3.4 V and suffer from high rates of selfdischarge. Within NMC compositions, Nickel provides high energy density and increased storage capacity at lower cost and contributes to the circular economy due to the durability, recyclability and possible second life. However, the majority of degradation mechanisms of Ni-rich NMC-based cathodes are linked to their morphology and crystal structure related mechanisms as well as being dependent on the Ni/Mn/Co ratios. Increased nickel content can result in an increased cation mixing due to the bulk diffusion of Ni2+ causing increased parasitic reactions as the valence of surface Ni increases toward highly reactive Ni4+. Due to the issues with their thermal instability at the fully charged state and insufficient cycle life, researchers are forced to explore approaches to improve these for enhancement of the overall performance of cathodes.

Item URL in elib:https://elib.dlr.de/196238/
Document Type:Conference or Workshop Item (Speech)
Title:NMC cathode materials: effect of processing parameters on their functional properties
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Nahirniak, SvitlanaUNSPECIFIEDhttps://orcid.org/0000-0001-5252-8737UNSPECIFIED
Guney, EmreENWAIR Energy Technologies CorporationUNSPECIFIEDUNSPECIFIED
Saini, NehaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lontio Fomekong, RoussinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yuca, NeslihanENWAIR Energy Technologies CorporationUNSPECIFIEDUNSPECIFIED
Saruhan-Brings, BilgeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:6 July 2023
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:energy storage; Li-ion batteries; NMC cathode; co-precipitation
Event Title:XVIII ECerS Conference & Exhibition of the European Ceramic Society
Event Location:Lyon, France
Event Type:international Conference
Event Dates:2-6 July 2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Clean Propulsion
DLR - Research area:Aeronautics
DLR - Program:L CP - Clean Propulsion
DLR - Research theme (Project):L - Advanced Materials and New Manufacturing Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > High Temperature and Functional Coatings
Deposited By: Nahirniak, Svitlana
Deposited On:21 Aug 2023 09:30
Last Modified:21 Aug 2023 09:30

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