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Can I read Feasibility of Chemically Modified Cellulose Nanofiber Membranes as Lithium-Ion Battery Separators on EtoBox?
Feasibility of Chemically Modified Cellulose Nanofiber Membranes as Lithium-Ion Battery Separators by Hyeyun Kim; Ulriika Mattinen; Valentina Guccini; Haidong Liu; Germán Salazar-Alvarez; Rakel Wreland Lindström; Göran Lindbergh; Ann Cornell is a Engineering article available to read on EtoBox.
What is Feasibility of Chemically Modified Cellulose Nanofiber Membranes as Lithium-Ion Battery Separators about?
Chemical modification of cellulose is beneficial to produce highly porous lithium-ion battery (LIB) separators, but introduction of high charge density adversely affects its electrochemical stability in a LiNiMnCoO (NMC)/graphite full cell. In this study, the influence of carboxylate functional groups in 2,2,6,6-tetramethylpiperidine-1-oxyl-mediated oxidized cellulose nanofibers (TOCNs) on the electrochemical performances of the LIB separator was investigated. X-ray photoelectron spectroscopy and in operando mass spectrometry measurements were used to elucidate the cause of failure of the batteries containing TOCN separators in the presence and absence of sodium counterions in the carboxylate groups and additives. For the TOCN separator with sodium carboxylate functional groups, it seems that Na deposition is the dominant reason for poor electrochemical stability of the cell thereof. The poor performance of the protonated TOCN separator, attributed to a high amount of gas evolution, is dramatically improved by adding 2 wt % of vinylene carbonate (VC) because of suppressed gas evolution. Unveiling the failure mechanism of the TOCN separators and successively implementing the strateg
Who reads Feasibility of Chemically Modified Cellulose Nanofiber Membranes as Lithium-Ion Battery Separators?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Hyeyun Kim; Ulriika Mattinen; Valentina Guccini; Haidong Liu; Germán Salazar-Alvarez; Rakel Wreland Lindström; Göran Lindbergh; Ann Cornell
- Publisher
- American Chemical Society (ACS)
- Published
- 2020
- Language
- EN
- Field
- Engineering (Physical Sciences)