Enabling Aqueous Processing for LiNi0.5Mn1.5O4‐Based Positive Electrodes in Lithium‐Ion Batteries by Applying Lithium‐Based Processing Additives

Aqueous processing of positive electrode active materials (AMs) could enable a more economical and environmentally friendly production of lithium‐ion batteries. Intrinsically, aqueous processing of positive AMs is hampered by lithium‐proton exchange in the AM surface, leading to a poor electrochemic...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Iris Dienwiebel, Marcel Diehl, Bastian Heidrich, Xiaofei Yang, Martin Winter, Markus Börner
Formato:	article
Lenguaje:	EN
Publicado:	Wiley-VCH 2021
Materias:	aqueous processing Li-ion batteries LiN(SO2CF3)2 LiNi0.5Mn1.5O4 processing additives Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/d702f98c5994486d8fed98b880feaeaf
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d702f98c5994486d8fed98b880feaeaf
record_format	dspace
spelling	oai:doaj.org-article:d702f98c5994486d8fed98b880feaeaf2021-11-04T09:03:08ZEnabling Aqueous Processing for LiNi0.5Mn1.5O4‐Based Positive Electrodes in Lithium‐Ion Batteries by Applying Lithium‐Based Processing Additives2699-941210.1002/aesr.202100075https://doaj.org/article/d702f98c5994486d8fed98b880feaeaf2021-11-01T00:00:00Zhttps://doi.org/10.1002/aesr.202100075https://doaj.org/toc/2699-9412Aqueous processing of positive electrode active materials (AMs) could enable a more economical and environmentally friendly production of lithium‐ion batteries. Intrinsically, aqueous processing of positive AMs is hampered by lithium‐proton exchange in the AM surface, leading to a poor electrochemical performance and a resulting strong increase in the pH value in the electrode paste, thereby corroding the aluminum current collector. Herein, the influence of different lithium salts as processing additive to tailor the pH value of the electrode paste, the manganese dissolution during processing, and the electrochemical performance is described for aqueous processing of LiNi0.5Mn1.5O4‐based positive electrodes. Positive electrodes, based on an aqueous LiNi0.5Mn1.5O4‐based electrode paste which is mixed with LiN(SO2CF3)2 (LiTFSI), achieve a comparable electrochemical performance to state‐of‐the‐art nonaqueous‐processed electrodes. Manganese dissolution into the electrode paste is examined by inductively coupled plasma‐mass spectrometry (ICP‐MS), showing that the addition of lithium salts to the electrode paste substantially decreases manganese leaching during processing. Furthermore, postmortem analysis shows that the addition of LiTFSI to the electrode paste has a positive effect not only during processing but also on charge/discharge cycling performance.Iris DienwiebelMarcel DiehlBastian HeidrichXiaofei YangMartin WinterMarkus BörnerWiley-VCHarticleaqueous processingLi-ion batteriesLiN(SO2CF3)2LiNi0.5Mn1.5O4processing additivesEnvironmental technology. Sanitary engineeringTD1-1066Renewable energy sourcesTJ807-830ENAdvanced Energy & Sustainability Research, Vol 2, Iss 11, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	aqueous processing Li-ion batteries LiN(SO2CF3)2 LiNi0.5Mn1.5O4 processing additives Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830
spellingShingle	aqueous processing Li-ion batteries LiN(SO2CF3)2 LiNi0.5Mn1.5O4 processing additives Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830 Iris Dienwiebel Marcel Diehl Bastian Heidrich Xiaofei Yang Martin Winter Markus Börner Enabling Aqueous Processing for LiNi0.5Mn1.5O4‐Based Positive Electrodes in Lithium‐Ion Batteries by Applying Lithium‐Based Processing Additives
description	Aqueous processing of positive electrode active materials (AMs) could enable a more economical and environmentally friendly production of lithium‐ion batteries. Intrinsically, aqueous processing of positive AMs is hampered by lithium‐proton exchange in the AM surface, leading to a poor electrochemical performance and a resulting strong increase in the pH value in the electrode paste, thereby corroding the aluminum current collector. Herein, the influence of different lithium salts as processing additive to tailor the pH value of the electrode paste, the manganese dissolution during processing, and the electrochemical performance is described for aqueous processing of LiNi0.5Mn1.5O4‐based positive electrodes. Positive electrodes, based on an aqueous LiNi0.5Mn1.5O4‐based electrode paste which is mixed with LiN(SO2CF3)2 (LiTFSI), achieve a comparable electrochemical performance to state‐of‐the‐art nonaqueous‐processed electrodes. Manganese dissolution into the electrode paste is examined by inductively coupled plasma‐mass spectrometry (ICP‐MS), showing that the addition of lithium salts to the electrode paste substantially decreases manganese leaching during processing. Furthermore, postmortem analysis shows that the addition of LiTFSI to the electrode paste has a positive effect not only during processing but also on charge/discharge cycling performance.
format	article
author	Iris Dienwiebel Marcel Diehl Bastian Heidrich Xiaofei Yang Martin Winter Markus Börner
author_facet	Iris Dienwiebel Marcel Diehl Bastian Heidrich Xiaofei Yang Martin Winter Markus Börner
author_sort	Iris Dienwiebel
title	Enabling Aqueous Processing for LiNi0.5Mn1.5O4‐Based Positive Electrodes in Lithium‐Ion Batteries by Applying Lithium‐Based Processing Additives
title_short	Enabling Aqueous Processing for LiNi0.5Mn1.5O4‐Based Positive Electrodes in Lithium‐Ion Batteries by Applying Lithium‐Based Processing Additives
title_full	Enabling Aqueous Processing for LiNi0.5Mn1.5O4‐Based Positive Electrodes in Lithium‐Ion Batteries by Applying Lithium‐Based Processing Additives
title_fullStr	Enabling Aqueous Processing for LiNi0.5Mn1.5O4‐Based Positive Electrodes in Lithium‐Ion Batteries by Applying Lithium‐Based Processing Additives
title_full_unstemmed	Enabling Aqueous Processing for LiNi0.5Mn1.5O4‐Based Positive Electrodes in Lithium‐Ion Batteries by Applying Lithium‐Based Processing Additives
title_sort	enabling aqueous processing for lini0.5mn1.5o4‐based positive electrodes in lithium‐ion batteries by applying lithium‐based processing additives
publisher	Wiley-VCH
publishDate	2021
url	https://doaj.org/article/d702f98c5994486d8fed98b880feaeaf
work_keys_str_mv	AT irisdienwiebel enablingaqueousprocessingforlini05mn15o4basedpositiveelectrodesinlithiumionbatteriesbyapplyinglithiumbasedprocessingadditives AT marceldiehl enablingaqueousprocessingforlini05mn15o4basedpositiveelectrodesinlithiumionbatteriesbyapplyinglithiumbasedprocessingadditives AT bastianheidrich enablingaqueousprocessingforlini05mn15o4basedpositiveelectrodesinlithiumionbatteriesbyapplyinglithiumbasedprocessingadditives AT xiaofeiyang enablingaqueousprocessingforlini05mn15o4basedpositiveelectrodesinlithiumionbatteriesbyapplyinglithiumbasedprocessingadditives AT martinwinter enablingaqueousprocessingforlini05mn15o4basedpositiveelectrodesinlithiumionbatteriesbyapplyinglithiumbasedprocessingadditives AT markusborner enablingaqueousprocessingforlini05mn15o4basedpositiveelectrodesinlithiumionbatteriesbyapplyinglithiumbasedprocessingadditives
_version_	1718444993794801664

Enabling Aqueous Processing for LiNi0.5Mn1.5O4‐Based Positive Electrodes in Lithium‐Ion Batteries by Applying Lithium‐Based Processing Additives

Ejemplares similares