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Assistant Professor

Hayoung Park (박하영)

배터리 시스템 구조 및 전기화학 고도분석

Laboratory for Energy & Nanoscale Science (LENS)

Focusing on the Insights, Visualizing the Future

Hayoung ParkProfessor

Education

2013.3-2018.2 서울대학교 자유전공학부 화학생물공학 공학사 (Cum Laude)
2018.3-2024.2 서울대학교 화학생물공학부 공학박사

Career

2024.6-2026.1 University of California, Los Angeles 포스닥
2026.3-Present 이화여자대학교 화공신소재공학과 조교수

Research Interests

– 배터리 시스템 투과전자현미경 고도 분석
– 차세대 배터리 시스템 (리튬 금속 배터리, 소듐 배터리, 전고체 배터리) 의 거동 원리 및 열화 원인 규명
– 음극·양극 물질 계면 구조 및 형성 원리 고도 분석
– 첨단 투과전자현미경 분석법 개발 (in situ, cryo, 4D-STEM 기반)
– 전기화학 분석
– 리튬 금속 배터리용 전해질 개발

Selected Publication

[1]  H. Park†, H. Park†, K. Song, S. H. Song, S. Kang, K.-H.Ko, D. Eum, Y. Jeon, J. Kim, W. M. Seong, H. Kim, J. Park*, and K. Kang*, “In situ multiscale probing of the synthesis of a Ni-rich layered oxide cathode reveals reaction heterogeneity driven by competing kinetic pathways”, Nat. Chem. 2022, 14, 614-622
[Highlights on Journal Cover Article]
[2] H. Park†, Y. Jeon†, W. J. Chung, Y. Bae, J. Kim, H. Baek, and J. Park*, “Early Stage Li Plating by Liquid Phase and Cryogenic Transmission Electron Microscopy”, ACS Energy Lett. 2023, 8, 715-721
[3] H. Park†, Y. Jeon†, M. Park, I. Jung, J. Shin, Y. Kim, W. Kim, K. Ryu, W. B. Lee* and J. Park*, “Additive-Driven Nanoscale Architecture of Solid Electrolyte Interphase Revealed by Cryogenic Transmission Electron Microscopy”, ACS Nano 2024, 18, 20, 12885-12896
[4] S. Lee†, H. Park†, J. Y. Kim, M.-J. Choi, S. Han, S. Kim, W. Kim, H. W. Jang, J. Park*, and K. Kang*, “Unveiling crystal orientation-dependent interface property in composite cathodes for solid-state batteries by in situ microscopic probe”, Nat. Commun. 2025, 15, 7947
[5] D. Lee†, H. Park†, Y. Ko, H. Park, T. Hyeon, K. Kang*, and J. Park*, “Direct Observation of Redox Mediator-Assisted Solution-Phase Discharging of Li-O2 Battery by Liquid-Phase Transmission Electron Microscopy”, J. Am. Chem. Soc. 2019, 141, 8047-8052

Lab Overview

My research group aims to uncover hidden nanoscale mechanisms governing energy materials and electrochemical systems. Our research combines advanced transmission electron microscopy, multimodal characterization, and electrochemistry to visualize dynamic processes in batteries and other energy systems. By revealing how structure, chemistry, and electrochemical behavior evolve at the nanoscale, we seek to establish fundamental principles that guide the design of next-generation energy technologies.