In situ construction of a favorable cathode electrolyte interphase through a fluorosilane additive for high-performance Li-rich cathode materials

Multifunctional Electrolyte Additive for High-Nickel LiNi0.8Co0.1Mn0.1O2 Cathodes of Lithium-Metal Batteries

“…To further investigate the reasons for the improvement of the electrochemical performance of the Li||NMC811 full cell with the PFPN-containing electrolyte, a transmission electron microscope (TEM) and XPS were used to analyze the structure and chemical components of CEI in NMC811. As shown in Figure e, an uneven CEI can be observed on the cathode from the cell containing the basic electrolyte, and the thickness of CEI is more than 30 nm, which is much more than the PFPN-electrolyte (10 nm). − A thin and uniform CEI can stabilize the structure of the NCM811 cathode and suppress the transition metal dissolution by isolating electrolyte corrosion. As shown in Figure S6, in the basic electrolyte, the secondary particles have been damaged after 200 cycles.…”

Low-temperature tolerant lithium-rich manganese-based cathode enabled by facile SnO2 decoration

“…23,24 Finally, although voltages exceed 4.5 V, adverse side reactions at the interface between the electrolyte and electrode surface become increasingly prevalent. 25,26 Surface modification is one of the common methods for addressing the aforementioned issues. 27,28 Various modified materials have been reported, including PAN, 29 Al 2 O 3 , 30,31 SiO 2 , 32 AlF 3 , 33 and AlPO 4 .…”