Increasing the environmental benignity of lithium-ion batteries is one of the greatest challenges for their large-scale deployment. Toward this end, we present herein a strategy to enable the aqueous processing of high-voltage LiNi0.5Mn1.5O4 (LNMO) cathodes, which are considered highly, if not the most, promising for the realization of cobalt-free next-generation lithium-ion cathodes. Combining the addition of phosphoric acid with the cross-linking of sodium carboxymethyl cellulose by means of citric acid, aqueously processed electrodes with excellent performance are produced. The combined approach offers synergistic benefits, resulting in stable cycling performance and excellent coulombic efficiency (98.96 %) in lithium-metal cells. Remarkably, this approach can be easily incorporated into standard electrode preparation processes with no additional processing step. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Complementary strategies toward the aqueous processing of high-voltage LiNi0.5Mn1.5O4 lithium-ion cathodes / Kuenzel, M.; Bresser, D.; Diemant, T.; Carvalho, D. V.; Kim, G. -T.; Behm, R. J.; Passerini, S.. - In: CHEMSUSCHEM. - ISSN 1864-5631. - 11:3(2018), pp. 562-573. [10.1002/cssc.201702021]

Complementary strategies toward the aqueous processing of high-voltage LiNi0.5Mn1.5O4 lithium-ion cathodes

Passerini, S.
2018

Abstract

Increasing the environmental benignity of lithium-ion batteries is one of the greatest challenges for their large-scale deployment. Toward this end, we present herein a strategy to enable the aqueous processing of high-voltage LiNi0.5Mn1.5O4 (LNMO) cathodes, which are considered highly, if not the most, promising for the realization of cobalt-free next-generation lithium-ion cathodes. Combining the addition of phosphoric acid with the cross-linking of sodium carboxymethyl cellulose by means of citric acid, aqueously processed electrodes with excellent performance are produced. The combined approach offers synergistic benefits, resulting in stable cycling performance and excellent coulombic efficiency (98.96 %) in lithium-metal cells. Remarkably, this approach can be easily incorporated into standard electrode preparation processes with no additional processing step. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
2018
aqueous electrode processing; cross-linked binder; high-voltage cathode; li-ion batteries; phosphoric acid
01 Pubblicazione su rivista::01a Articolo in rivista
Complementary strategies toward the aqueous processing of high-voltage LiNi0.5Mn1.5O4 lithium-ion cathodes / Kuenzel, M.; Bresser, D.; Diemant, T.; Carvalho, D. V.; Kim, G. -T.; Behm, R. J.; Passerini, S.. - In: CHEMSUSCHEM. - ISSN 1864-5631. - 11:3(2018), pp. 562-573. [10.1002/cssc.201702021]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1588438
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