Batteries, Год журнала: 2024, Номер 10(12), С. 438 - 438

Опубликована: Дек. 10, 2024

Supercapacitors are a kind of energy storage device that lie between traditional capacitors and batteries, characterized by high power density, long cycle life, rapid charging discharging capabilities. The mechanism supercapacitors mainly includes electrical double-layer capacitance pseudocapacitance. In addition to constructing multi-level pore structures increase the specific surface area electrode materials, defect engineering is essential for enhancing electrochemical active sites achieving additional extrinsic Therefore, developing simple efficient method essential. Atomic layer deposition (ALD) technology enables precise control over thin film thickness at atomic level through layer-by-layer deposition. This capability allows intentional introduction defects, such as vacancies, heteroatom doping, or misalignment, within material. ALD process can regulate defects in materials without altering overall structure, thereby optimizing both physical properties materials. Its self-limiting reaction also ensures doping introduced uniformly across material surface. uniform distribution particularly profitable electrodes supercapacitor applications, it promotes consistent performance entire electrode. review systematically summarizes latest advancements via supercapacitors, including enhancement conductivity ALD, improving density device. Furthermore, we discuss underlying mechanisms, advantages, future directions this field.

Язык: Английский