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journal article·2024-09

Flexible Aqueous Supercapacitors for Long Cycle‐Life Using Electrode with Multiple Active C═S Sites

Xinxin Xing, Bita Farhadi, Le Wang, Kai Wang, Yan Zhu, Hui Wang, Lanbo Di, Haoxiang Zhang, Shengzhong (Frank) Liu

Small· Volume 20· Issue 37
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Source abstract

Abstract

Abstract Even though a few organic materials have attracted considerable attention for energy storage applications, their dissolution in the electrolyte during the charging‐discharging processes presents a formidable challenge to their long‐term performance. In this work, according to the principle of like dissolves like, non‐polar trithiocyanuric acid (TCA) can effectively inhibit dissolution in an aqueous electrolyte, hence prolonging the cycle life. Moreover, theoretical calculations suggest that TCA lowers lowest unoccupied molecular orbital (LUMO) energy level, thereby promoting reaction kinetics. The CV curves of TCA maintain a rectangular structure even at a high scan rate of 1000 mV s‒1 and exhibit a remarkable capacitance retention rate of 93.1% after 50,000 cycles. Asymmetric flexible supercapacitors utilizing the TCA exhibit an impressive energy density. Moreover, they maintain 94.2% of their capacitance after undergoing 80,000 cycles. Their integration with perovskite solar cells to facilitate the rapid storage of photogenerated charges enables efficient solar energy utilization, providing a practical solution for capturing and storing renewable energy.
Source: crossref · Quality: baseline

Research context

Energy storageElectronic materials

OpenAlex topics: Supercapacitor Materials and Fabrication · Advanced battery technologies research · Advanced Battery Materials and Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Physical Science and Technology Dalian University Dalian Liaoning 116622 P. R. China

Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 P. R. China

Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 P. R. China

Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced energy Technology Institute for Advanced Energy Materials School of Materials Science and Engineering Shaanxi Normal University Xi'an 710119 P. R. China

Funding

National Basic Research Program of China · National Natural Science Foundation of China · Natural Science Foundation of Liaoning Province · Higher Education Discipline Innovation Project · Fundamental Research Funds for the Central Universities · Shanxi Provincial Science and Technology Department

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