Hexavalent Ions Insertion in Garnet Li La Zr O Toward a Low Temperature Densification Reaction.

Nowadays, solid electrolytes are considered the main alternative to conventional liquid electrolytes in lithium batteries. The fabrication of these materials is however limited by the strict synthesis conditions, requiring high temperatures which can negatively impact the final performances. Here, it is shown that a modification of garnet-based Li La Zr O (LLZO) and the incorporation of tellurium can accelerate the synthesis process by lowering the formation temperature of cubic LLZO at temperatures below 700 °C.

Predicting and influencing PrEP use: the role of motivational and attitudinal factors.

This study examined PrEP attitude and HIV risk factors associated with PrEP motivation and evaluated the efficacy of a mock public health video that addresses both motivational and stigma issues for improving PrEP uptake over a standard educational video. Gay, bisexual, and other men who have sex with men (GBMSM;  = 604) were enrolled. One-way between subject analysis of variance (ANOVA) and post-hoc comparisons revealed that GBMSM in later stages of change had significantly higher endorsement of positive PrEP attitudes, PrEP stigma, objective and perceived HIV risk, HIV worry, and valued health benefits of PrEP more.

Influence of Ti substitution on the properties of a LiAlGe(PO) nanofiber-based solid electrolyte.

We report the influence of the partial substitution of Ge with Ti on the properties of NASICON LiAlGe(PO) (LAGP) nanofibers prepared by electrospinning. Replacing a small amount of Ge (up to 20%) with Ti is advantageous for enhancing both the purity and morphology of LAGP fibers, as observed by X-ray diffraction, electron microscopy and nuclear magnetic resonance spectroscopy. When Ti-substituted LAGP (LAGTP) fibers are used as filler to develop composite polymer electrolytes, the ionic conductivity at 20 °C improves by a factor of 1.

Direct observation of lithium metal dendrites with ceramic solid electrolyte.

Dendrite formation, which could cause a battery short circuit, occurs in batteries that contain lithium metal anodes. In order to suppress dendrite growth, the use of electrolytes with a high shear modulus is suggested as an ionic conductive separator in batteries. One promising candidate for this application is LiLaZrO (LLZO) because it has excellent mechanical properties and chemical stability.

Corrosion of One-Step Superhydrophobic Stainless-Steel Thermal Spray Coatings.

As most superhydrophobic coatings are made of soft materials, the need for harder, more robust films is evident in applications where erosional degradation is of concern. The work herein describes a methodology to produce superhydrophobic stainless-steel thermal spray coatings using the high-velocity oxygen fuel technique. Due to the use of a kerosene fuel source, a carbon-rich film is formed on the surface of the thermal spray coatings, lowering the surface energy of the high-energy metallic substrates.