Interface reactions between LiPON and lithium studied by in-situ X-ray photoemission

Li+ Ion Conductors with Adamantane‐Type Nitridophosphate Anions β‐Li10P4N10 and Li13P4N10X3 with X=Cl, Br

“…Formation of Li 3 N, as in Li 6 P 3 O 9 N (2 Li 6 P 3 O 9 N + 12 Li!Li 3 PO 4 + Li 4 P 2 O 7 + Li 3 N + 7Li 2 O), during the process cannot be unambiguously verified, as the expected Li 3 Ns ignal (in the range 395-396eV) would be located directly under the signal of b-Li 10 P 4 N 10 or Li 13 P 4 N 10 Cl 3 . [53] However,i n view of the relative decrease in the Ns ignal at higher binding energy,t he formation of Li 3 Ns eems likely. The P2 ps ignal (Supporting Information, Figure S45) remains almostu nchanged, as does the Cl 2p signal in Li 13 P 4 N 10 Cl 3 .F ormationo f Li 3 Pw ould lead to as ignal in the range 126-127eV, at which no signali so bserved.…”

Electrochemical Stability of Li6.5La3Zr1.5M0.5O12 (M = Nb or Ta) against Metallic Lithium

“…However, LLTO and LATP contain Ti 4+ , which spontaneously reduces to Ti 3+ upon contact with metallic Li. In addition, despite its known stable cycling behavior, Schwöbel et al (2015) found LIPON decomposed into Li3PO4, Li3P, Li3N, and Li2O when paired with a metallic Li anode. Thus, cells using LIPON to enable Li anodes likely form a kinetically limited passivation layer.…”

Interphase formation on lithium solid electrolytes—An in situ approach to study interfacial reactions by photoelectron spectroscopy

“…A detailed description of the experiment, its perspectives and wide range of applicability was yet not given and will be presented here. Schwöbel et al recently studied the reaction of lithium phosphorous oxide nitride ("LiPON") thin films in contact with lithium [13]. Using an advanced UHV cluster tool, they repeatedly deposited thin layers of lithium metal on "LiPON" in a lithium dispenser, transferred the sample under UHV conditions to the XPS chamber and analyzed the reaction products that had formed on the surface.…”