2013
DOI: 10.1016/j.jpowsour.2013.03.031
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Diphenyloctyl phosphate as a solid electrolyte interphase forming additive for Li-ion batteries

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Cited by 17 publications
(19 citation statements)
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“…Focusing first on the P2ps pectra (Figure 10 a), the comparison of the three electrodes clearly reveals once more the presence of a metal phosphate surfacel ayer on the PA-CMCc athodes, whereas for the CMC and CA-CMC electrodes, only the peaks corresponding to Li x FP y (136.0 eV) and Li x PO y F z (134.7 eV), arising from the decomposition of the electrolyte salt, are observed. [51,60,61] Remarkably,f or the PA-CMC electrode, the relative intensity of the peak associated with MPO x is of the same order as those corresponding to the electrolyte decomposition products,i ndicating that the latter process results in the formationo farather thin layer of decomposition products. This interpretationi sa dditionally supportedb yt he analysiso ft he F1ss pectra, presented in Figure10b.T he surfacel ayer on the PA-CMCe lectrode is dominated by LiF (684.6 eV), whichi s knownt of orm as table, but rather resistive layer on the electrode.…”
Section: Resultsmentioning
confidence: 88%
“…Focusing first on the P2ps pectra (Figure 10 a), the comparison of the three electrodes clearly reveals once more the presence of a metal phosphate surfacel ayer on the PA-CMCc athodes, whereas for the CMC and CA-CMC electrodes, only the peaks corresponding to Li x FP y (136.0 eV) and Li x PO y F z (134.7 eV), arising from the decomposition of the electrolyte salt, are observed. [51,60,61] Remarkably,f or the PA-CMC electrode, the relative intensity of the peak associated with MPO x is of the same order as those corresponding to the electrolyte decomposition products,i ndicating that the latter process results in the formationo farather thin layer of decomposition products. This interpretationi sa dditionally supportedb yt he analysiso ft he F1ss pectra, presented in Figure10b.T he surfacel ayer on the PA-CMCe lectrode is dominated by LiF (684.6 eV), whichi s knownt of orm as table, but rather resistive layer on the electrode.…”
Section: Resultsmentioning
confidence: 88%
“…Earlier studies report that O‐containing phosphates can be present in different forms such as P=O, PO 4 3− ions or OP(OR) 3 . In general, the characterization of phosphates by XPS is rather difficult, and the peak at 134.2 eV can also suggest a formation of Li 3 PO 4 , known as inorganic substance, which improves lithium ion conductivity ,…”
Section: Resultsmentioning
confidence: 99%
“…The electrolyte compositions used in this study comprise 1 M LiPF 6 , ethylene carbonate:dimethyl carbonate:diethyl carbonate (EC : DMC : DEC) basic solution with two practically important additives with different chemical nature and functions: vinylene carbonate (VC) and diphenyl octyl‐phosphate (DPOP). VC is a widely implemented polymerizable additive, having a strong industrial impact and DPOP is a bi‐functional fire‐retarding agent with the potential to simultaneously improve SEI formation and to reduce electrolyte flammability . The obtained EQCM results allow us to interpret for the first time the in‐situ growth, stability and mechanical properties of SEI formed in the presence of DPOP and to offer a direct comparison with the additive‐free reference and the VC‐containing electrolytes.…”
Section: Introductionmentioning
confidence: 95%
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“…Examples of this group include substituted cyclic carbonates [52,178], sulfates [41,146], sulfites [123], sultones [59,76], phosphates [98,132], and possibly other compounds that have heteroatoms with high oxidation states (Fig. 2).…”
Section: Sei Additives For Carbonaceous Anodesmentioning
confidence: 99%