Electrolyte-Driven Behavior of Symmetric Supercabatteries Based on CuS/CoS/Bi2S3Metal–Sulfur Biomolecule Hybrids
ACS Applied Energy Materials, cilt.8, sa.16, ss.11896-11909, 2025 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 8 Sayı: 16
- Basım Tarihi: 2025
- Doi Numarası: 10.1021/acsaem.5c01020
- Dergi Adı: ACS Applied Energy Materials
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex
- Sayfa Sayıları: ss.11896-11909
- Anahtar Kelimeler: CoS, CuS, Bi2S3, supercabattery, redox electrolyte, K-4[Fe(CN)(6)]
- Erciyes Üniversitesi Adresli: Evet
Özet
Supercabatteries (SCB) are emerging as the ideal energy storage solution for applications requiring high power and energy output. This study offers an efficient approach for synthesizing a ternary multifunctional SCB electrode material composed of CuS, CoS, and Bi2S3. Biomolecular l-cysteine (L) and thiourea (T) were utilized as sulfide sources to improve the electrochemical efficiency of the electrodes. The l-cysteine increased the specific surface area (SSA) of CuS by ∼1.5-fold, that of CoS by ∼9-fold, and that of Bi2S3by ∼1.2-fold. The best-performing CuS@CoS@Bi2S3hybrid electrode was utilized in the construction of symmetric SCB devices operating at a voltage of up to 1.65 V. The use of an electrolyte doped with a redox additive potassium ferrocyanide [K4[Fe(CN)6]] was key in obtaining superior electrochemical performance leading to an energy density of 128 Wh kg–1and a power density of 50.000 W kg–1with considerable enhancements in the cycle durability.