Journal Article

FZJ-2017-02789

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Magnesium-based additives for the cathode slurry to enable high voltage application of lithium-ion batteries

Wagner, R. (Corresponding author) ; Kraft, V. ; Streipert, B. ; Kasnatscheew, J.FZJ* ; Gallus, D. R. ; Amereller, M. ; Korth, M. ; Cekic-Laskovic, I.FZJ* ; Winter, M. (Corresponding author)FZJ*

2017
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.electacta.2017.01.029

Abstract: The kinetic stabilization of the cathode/electrolyte interface is essential to enhance cycle life and safety of lithium-ion batteries at high voltage application. The addition of only 2 wt.% Mg powder to the cathode slurry were found to significantly increase the cycle life of LiNi1/3Co1/3Mn1/3O2/Li half cells upon cycling to 4.6 V vs. Li/Li+, in terms of higher capacity retention, less parasitic reactions and less self-discharge. The presence of dissolved Mg2+ cations in the electrolyte during formation of the cell lead to an increased hydrolysis of the conducting salt LiPF6 and the formation of stable and effective LiPFxOy/Mg(PFxOy)2 species on the charged cathode surface.

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Contributing Institute(s):

1. Helmholtz-Institut Münster Ionenleiter für Energiespeicher (IEK-12)

Research Program(s):

1. 131 - Electrochemical Storage (POF3-131) (POF3-131)

Appears in the scientific report 2017

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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