Effects of Extreme Low Temperatures on Carbon-Based Supercapacitors

This comprehensive study delves into the effects of severe cold exposure, specifically liquid nitrogen temperatures, on the functionality of carbon-based supercapacitors. It identifies a slight reduction in capacitance, a direct consequence of the degradation of electrode materials. This degradation is linked to the glass transition in the styrene butadiene rubber binder, leading to decreased adhesion of the active materials in the electrodes. The study highlights the escalated charge transfer resistance post-exposure, pointing to a decrease in efficiency. Significantly, this research emphasizes the crucial role of binder materials in supercapacitor design for low-temperature environments, suggesting that both electrolytes and binders should be equally considered in the development of supercapacitors for harsh climates. The findings contribute valuable insights into enhancing supercapacitor resilience and performance in extreme conditions, paving the way for more robust energy storage solutions.