Soo Min Hwang
성균관대학교 공과대학 기계공학부 · 공학
황수민 교수의 연구실은 리튬이온 및 나트륨이온 전지의 고성능 소재 개발에 초점을 맞추고 있으며, 특히 나노구조 전극 재료, 다공성 탄소 소재, 고용량 양극재 및 저비용 전지 시스템의 설계와 응용을 핵심 연구 방향으로 삼고 있습니다. 전기화학적 성능을 극대화하기 위한 나노구조 제어, 표면 코팅 기술, 그리고 건식 공정 기반 전극 제조 기술의 개발도 활발히 진행되고 있습니다. 특히 대량 저장용 전지의 실용화를 위해 안전하고 저비용인 전해질 및 전극 소재의 개발에도 기여하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Mesoporous hollow fibres of MnCo2O4 and CoMn2O4 were synthesized by electrospinning and highly exothermic oxygen-mediated combustion reactions during calcination, in which the heating rate affected the final fibre morphology (e.g., single- or double-shell). The anodes consisting of hollow fibres showed excellent electrochemical properties for lithium-ion batteries.
High-permittivity (k) ZrO2/Si(100) films were fabricated by a sol-gel technique and the microstructural evolution with the annealing temperature (Ta) was correlated with the variation of their electrical performance. With increasing Ta, the ZrO2 films crystallized into a tetragonal (t) phase which was maintained until 700 °C at nanoscale thicknesses. Although the formation of the t-ZrO2 phase obviously enhanced the k value of the ZrO2 dielectric layer, the maximum capacitance in accumulation was
Cheap, familiar saltwater (NaCl solution) was utilized to build low-cost, safe rechargeable batteries for large-scale electrical energy storage applications.
Lithium-ion batteries (LIBs) are the main driving force behind the proliferation of mobile devices and electric vehicles. The production technologies of LIBs have been developed with the aim of lowering the energy cost (US$ kWh−1) and environmental impact while increasing the production efficiency. Here, we report dry-processed Ni-rich oxide cathodes coated with carbon nanotubes (CNTs) for LIBs. Specifically, LiNi0.8Co0.15Al0.05O2 (NCA) particles coated with multi-walled CNTs (MWCNTs) were used
We report the preparation of porosity-tuned N-doped carbons <italic>via</italic> thermolysis of nonporous Zn-based coordination polymers constructed with nitrogen-containing ligands, in which especially mesoporosity is developed.
Hybrid-type Na–air batteries using a flow-through configuration and an acidic catholyte are investigated to enhance the battery performance.
The phase evolution of CuS during the lithiation and delithiation processes is explored by a combination of <italic>operando</italic> and <italic>ex situ</italic> analyses.
