Comparative study of Ta and Ga doping effects on LiLaZrO garnet electrolytes for advanced thermal battery applications.

The paradigm shift from conventional molten-salt electrolytes to solid-state garnet-type LiLaZrO (LLZO) electrolytes in thermal batteries represents a critical advancement in high-temperature energy-storage systems. This study evaluated Ta- and Ga-doped LLZO electrolytes for FeS/Li-Si thermal batteries, focusing on their structural stability and electrochemical performance at 500 °C. While Ga-doped LLZO exhibited superior ionic conductivity at 25 °C, Ta-doped LLZO demonstrated exceptional high-temperature stability.

Lithium metal batteries using a lithiophilic oxidative interfacial layer on the 3D porous metal alloy media.

Various lithium-infused metal anodes based on pure nickel foam, recognised for their superior properties, have been developed for application in lithium batteries. However, pure nickel foam exhibits significant reactivity with molten lithium during the infusion processes, such as coating and impregnation. In this study, a high-performance and ultra-stable lithium-infused metal anode (LI-NAFA) is synthesised through a simple oxidation treatment of nickel-chromium-aluminium (Ni-Cr-Al) alloy foam (NAF) at 900 °C in an air atmosphere.

Enhanced Thermal Stability and Conductivity of FeF Using Ni-Coated Carbon Composites: Application as High-Temperature Cathodes in Thermal Batteries.

Cathode active materials and conductive additives for thermal batteries operating at high temperatures have attracted research interest, with a particular focus on compounds offering high thermal stability. Recently, FeF has been proposed as a candidate for high-voltage cathode materials; however, its commercialization is hindered by its low conductivity. In this study, conductive additives, such as Ni-coated carbon composites (multi-walled carbon nanotubes (MWCNTs) and carbon black (CB)), were utilized to enhance the thermal stability and conductivity of FeF.

Correction: Massively synthesizable nickel-doped 1T-MoS nanosheet catalyst as an efficient tri-functional catalyst.

[This corrects the article DOI: 10.1039/D3RA03016D.].

Massively synthesizable nickel-doped 1T-MoS nanosheet catalyst as an efficient tri-functional catalyst.

In this study, a nickel (Ni)-doped 1T-MoS catalyst, an efficient tri-functional hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR) catalyst, was massively synthesized at high pressure (over 15 bar). The morphology, crystal structure, and chemical and optical properties of the Ni-doped 1T-MoS nanosheet catalyst were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and ring rotating disk electrodes (RRDE), and the OER/ORR properties were characterized using lithium-air cells. Our results confirmed that highly pure, uniform, monolayer Ni-doped 1T-MoS can be successfully prepared.