Microstructure-Dependent K Storage in Porous Hard Carbon.

Hard carbons (HCs) are emerging as promising anodes for potassium-ion batteries (PIBs) due to overwhelming advantages including cost effectiveness and outstanding physicochemical properties. However, the fundamental K storage mechanism in HCs and the key structural parameters that determining K storage behaviors remain unclear and require further exploration. Herein, HC materials with controllable micro/mesopore structures are first synthesized by template-assisted spray pyrolysis technology.

Investigation of the Impacts of Thermal Shock on Carbon Composite Materials.

Carbon composite is widely used in various fields, including the aerospace industry, electrical engineering, transportation engineering, etc. For electrified railways, the pantograph strip utilizes carbon composite as the current collector, which might bear multiple impacts from electrical, mechanical, or thermal aspects, from unwanted arcing, rain, and other diverse operation conditions. In this paper, a thermal shock damage experiment on the carbon composite of a pantograph strip was carried out.