Battery Consortium in Daegu University (Daegu Battery Lab) (2024-04-09~ 2024-05-07): Click on this: Training Activities (Daegu Battery Lab)
Our vision is to develop an overall reaction of water electrolysis and high performance supercapacitor devices to meet the needs of energy storage systems that store energy in various forms. Over time, we must shift from a fossil-fuel-based activity to one based on non-fossil fuels, and from reliance on non-renewable and depleting energy sources to renewable energy sources. The development of efficient and sustainable methods of energy conversion, distribution, and storage will be a massive challenge in the twenty-first century..
Our experimental strategy is to synthesize new 2D materials in a variety of forms such as transition metal dichalcogenides (MX2) group and characterize them using a variety of experimental techniques. Our research group is comprised of a group of enthusiastic researchers who are interested in low-dimensional materials, energy conversion and storage, nanoparticles, supercapacitor, battery, and catalysts, with the goal of advancing the science of high-performance and cost-effective energy storage devices. We are especially curious about the experimental and theoretical research on rechargeable batteries and supercapacitors under realistic operating conditions..
Our lab studies and develop novel nanomaterials for energystorage applications. Much of our work has collaborated with the fields of chemistry, chemical engineering, material science, and data science. Particularly, we are interested in the following technologies:
2D materials
Recharable battery (Na-ion and Zinc ion battery)
Solid state battery
Silicon carbon based materials for supercapacitor applications
G Lee, K Pandey,M Subedi, HK Jeong, New Physics: Sae Mulli 75 (2025) 323-330.
Ambient plasma treated SiCNT composite for energy storage
M Subedi, HK Jeong, New Physics: Sae Mulli 75 (2025) 297-304.
Hydrothermal Synthesis of Iron Oxide Grown on Nickel Foam for Supercapacitors
K Pandey,Y G Lee, HK Jeong, Current Applied Physics 72 (2025) 56-64.
Plasma treated nickel doped tungsten disulphide for supercapacitors and overall water splitting
K Pandey, HK Jeong, Journal of Industrial and Engineering Chemistry 147 (2025) 471-481.
Time-dependent synthesis of tungsten disulfide for flexible supercapacitors
K Pandey, HK Jeong, Journal of Energy Storage 90 (2024), 111756
Fig. 1. Schematic of the synthesis processes of WS2–24-ACC and its supercapacitor application.
Fig. 2. SEM images of (a,b) WS2–6, (c,d) WS2–12, (e,f) WS2–24, (g,h) WS2–36, (i,j) WS2–48, and (k,l) WS2–72.
Fig. 5. (a) XRD results, (b) Raman spectra, (c) BET results, and (d) pore size distribution results of the samples.
Fig. 4. (a) SEM images, (b) CV results at 100 mV s- 1, and (c) GCPL results of the ACC and WS2–24-ACC devices. (d) GCPL results under different bending conditions of the WS2–24-ACC device, (e) Ragone plot with previous reports related to WS2, and (f) the capacitance retention with coulombic efficiency at 1 A g- 1 with the PVA/ NaOH gel electrolyte in the two-electrode system.