Supercapacitors

as a highly efficient energy storage devices

play a crucial role in the energy revolution and the transformation as well as upgrading of industries due to their such advantages as outstanding power density

fast charge - discharge capability

extreme long cycle life and perfect environmental friendliness. Its application requirements are highly consistent with the strategy in China. Especially in the context of achieving the

dual carbon

goals

promot

ing the developemnt of new energy and realizing the self-reliance in the high - end manufacturing sector

the supercapacitors have become an important technical support in many key fields. However

the traditional wet coating process for the main electrode for mainstream supercapacitors at present are still adopted

which has such problems as weak adhesion

low coating quantity

insufficient flexibility of the electrode sheet and easy crack

resulting in such problems as low capacitance

high internal resistance

excessive gas production and a rapid decrease in both capacitance and internal resistance. In response to the aforementioned issues

we have developed a dry electrode for supercapacitors using three - dimensional stereoscopic film - forming technology. This dry electrode uses fibrous binders with characteristics of strong adhesion

high coating quantity

excellent flexibility

and resistance to high temperatures

pressures and humidity

which significantly improves the comprehensive perofrmance of electrode. The supercapacitors made by this method

compared with the existing commercial wetting process

has achieved high capacitance

low internal resistance

minimal gas production

stable capacitance and internal resistance variationas well as performance of the product. The breakthrough of this technology holds significant strategic importance for promoting the upgrading of energy storage technologies and achieving independent control in the field of high-end manufacturing.