This comparative work studies the self-enforcing heterogeneity of lithium deposition and dissolution as the cause for dendrite formation on the lithium metal anode in various liquid organic solvent based electrolytes. In addition, the ongoing lithium corrosion, its rate and thus the passivating quality of the SEI are investigated in self-discharge measurements. The behavior of the lithium anode...

Electrochemical impedance spectroscopy (EIS) and in-situ intrinsic resistance measurements were applied to sandwiched disk graphite electrodes to investigate the mechanism of formation of irreversible capacity during initial galvanostatic or potentiostatic lithium intercalation into graphite in four different electrolyte formulations. The stability of the solid electrolyte interphase (SEI) film...

New generation lithium batteries require better performances, improved safety, and sustainability. Better performances can be obtained with anodes high-voltage cathodes, which in turn pose more pressure on the electrolyte stability, is mandatory for safety. Deep Eutectic Solvents (DESs) are promising components safer environmentally sustainable electrolytes. We investigate physico-chemical prop...

To improve the safety of lithium ion batteries, a multi-component (MC) additive (consisting of vinylene carbonate (VC), 1,3-propylene sulfite (PS) and dimethylacetamide (DMAC)) is used in the baseline electrolyte (1.0 M LiPF6/ethylene carbonate (EC) + diethyl carbonate (DEC)). The electrolyte with the MC additive is named safety electrolyte. The thermal stabilities of fully charged Li(Ni1/3Co1/...

N-methyl pyrrolidone (NMP) is a polar aprotic solvent that critical for the production of polyaramids. However, due to its reprotoxicity and pending REACH restrictions, benign alternative needed. A mixture N-butyl (NBP) ionic liquid [C8MIm][Cl] proposed as promising candidate replace NMP. This organic electrolyte solution provides green approach polyaramid synthesis.

Ni-rich NMC cathode materials with a Ni content of over 80% are currently regarded as promising pathway to further boost the energy density rechargeable lithium-ion batteries. Meanwhile, cell safety is an important aspect when commercializing high-capacity Here, compatibility flame retardant pentafluoro(phenoxy)cyclotriphosphazene (FPPN) added ethylene carbonate/ethyl methyl carbonate/lithium h...

Lithium ethylene dicarbonate (CH2OCO2Li)2 was chemically synthesized and its Fourier Transform Infrared (FTIR) spectrum was obtained and compared with that of surface films formed on Ni after cyclic voltammetry (CV) in 1.2M lithium hexafluorophosphate (LiPF6)/ ethylene carbonate (EC): ethyl methyl carbonate (EMC) (3:7, w/w) electrolyte and on metallic lithium cleaved in-situ in the same electro...

Development of an eco-friendly, low cost and high energy density LiMnPO4 cathode material has attracted much attention due to its high operating voltage vs. Li falling within the electrochemical stability window of conventional electrolyte solutions and offers more safety features due to the presence of a strong P-O covalent bond.Synthesis of battery materials integrates the...