Multiscale · Multiphysics · Machine Learning / AI · Validation

From atoms to devices,
we understand and design energy & functional materials through multiscale analysis

From secondary batteries to thermal transport, electrocatalysis, and piezoelectric / electro-optic materials — we connect physics across length and time scales, pairing multiscale analysis with machine learning / AI technique to predict and design how materials and system behave.

Research Overview · 연구 개요
Research overview: integrating machine learning, multi-physics, and multi-scale approaches

Why multiphysics · multiscale + AI

  • The performance of energy and functional materials is set by coupled electrochemical, mechanical, thermal, chemical, and interfacial phenomena — no single method captures it all.
  • DFT (~nm), MD (~100 nm), FEM / phase-field (device scale), and experiment each cover only a limited range of length scales and physics.
  • A multiphysics, multiscale approach is therefore essential, and we couple it with machine learning / AI to accelerate prediction and design. (e.g., diffusion-induced stress, crack propagation, dendrite growth, interfacial electro-chemo-mechanical properties)
Length scale ▸  ·  click to switch ↗ 10⁻¹⁰ m — Å  →  10⁻³ m — mm
Å · electrons·atoms
Atomic & Electronic structures, reaction energetics, fundamental properties, first-principles
nm · molecules·interfaces
Ion transport, interfacial reactions, thermal properties, SEI formation
μm · microstructure
Phase change, microstructure evolution, crack & mechanical deformation, dendrites
mm · device·cell
Thermal–electrochemical–mechanical coupling at device scale
Machine learning / AI threads across every scale — screening materials and bridging them with surrogate models
Electrochemical experiment — Synthesis, cell assembly and validation in battery systems across scales
methodology detail
01

About the Lab

소개

No single scale — and no single method — fully explains a material's performance or lifetime. Our lab combines multiscale, multiphysics simulation with electrochemical experiment to connect atomic-scale reactions to device-scale behavior in one continuous picture.

Centered on secondary batteries (Li-, Na-, aqueous Zn-, and all-solid-state), we design electrode and electrolyte materials with first-principles calculations, molecular dynamics, phase-field modeling, and finite element analysis — then validate reaction and interface behavior through our own electrochemical experiments.

The work extends well beyond batteries to thermal transport in energy materials, electrocatalysis for energy conversion, and piezoelectric / electro-optic functional materials. Recently we have brought in machine learning / AI to predict properties of interfaces, grain boundaries, and surfaces, and to automate the links between scales. Across these areas, we actively pursue interdisciplinary, cross-department, and inter-lab collaborative research. (If you are interested in collaborating, please reach out — taesoon.hwang@gnu.ac.kr)

02

Research

Research Topics
/ 01
Research topic illustration 1

Battery Materials

Designing electrodes, electrolytes and full cell system for Li-, Na-, aqueous Zn-, and all-solid-state batteries with multiscale simulation, validation by electrochemical experiments.

/ 02
Research topic illustration 2

Multiphysics · Multiscale Computation with ML/AI

Materials, Mechanism and System analysis — Combining DFT, molecular dynamics, phase-field, and finite element methods across scales — with machine learning / AI coupling the electronic, chemical, thermal, and mechanical properties of interfaces, grain boundaries, and surfaces.

/ 03
Research topic illustration 3

Thermal Transport in Energy Materials

Phonon mechanics, interfacial thermal resistance, and thermally induced stress in crystalline and amorphous phases, predicted through multiscale simulation.

/ 04
Research topic illustration 4

Electrocatalysis & Functional Materials
(HER, piezo, electro-optic, optical, etc.)

Reaction pathways and stability of catalysts for hydrogen evolution (HER) and CO₂ reduction (CO₂RR), and the properties of functional materials (piezoelectric, electro-optic, optical, etc.) such as AlScN.

03

People

구성원
Principal Investigator
Taesoon Hwang · 황태순
Taesoon Hwang 황태순
Assistant Professor, School of Mechanical Engineering, Gyeongsang National University
Education
  • B.S., Mechanical Engineering, Sungkyunkwan University (2013.02)
  • Ph.D., Mechanical and Aerospace Engineering, Seoul National University (2021.02)
    Thesis Title: Multiscale Full-Cell Analysis of All-Solid-State Battery Considering Interface Effects.
    (계면 효과를 고려한 전고체 전지의 완전지 멀티스케일 해석)
    Advisor: Prof. Maenghyo Cho (조맹효)
Experience
  • Postdoctoral Research Associate, Materials Science and Engineering, The University of Texas at Dallas (2024.08)
  • Research Scientist, Materials Science and Engineering, The University of Texas at Dallas (2026.04)
  • Master Senior, Graphene Research Institute & Quantum Information Science and Technology Center, Sejong University (2026.08)
  • Assistant Professor, School of Mechanical Engineering, Gyeongsang National University (2026.09 ~ )

We're recruiting graduate students

We welcome M.S./Ph.D. students and undergraduate interns interested in computational materials, batteries, computational mechanics, and electrochemical experiment. Whether your strength is simulation or experiment, curiosity matters most.

Get in touch
04

Publications

논문 · 실적

‡ equal contribution · * corresponding author · newest first · full record on ORCID · Google Scholar

2026(28)
A. Mashhadian‡, T. Hwang‡, S. Wu, C. Toher, K. Cho, W. Li, G. Xiong
Advanced Materials
2025(27)
S. Wu‡, T. Hwang‡, A. Mashhadian‡, et al., K. Cho, G. Xiong
Nature Communications
2025(26)
Z. Yang, T. Hwang, Y. Mu, J. Luo, et al., K. Cho, Y. Zhou
Chem. Eng. J.
2025(25)
R. Jian, A. Mashhadian, C. Wang, T. Hwang, Y. Hao, K. Cho, G. Xiong
ACS Appl. Energy Mater.
2025(23)
A. Mashhadian, S. Wu, T. Hwang, et al., K. Cho, G. Xiong
Int. J. Hydrogen Energy
2025(21)
T. Hwang, M. Bergschneider, F. Kong, K. Cho
Chem. Mater.
2025(20)
M. Malakoutian, K. Woo, et al., T. Hwang, et al., K. Cho, S. Chowdhury
Adv. Electron. Mater.
2024(19)
M. Bergschneider, F. Kong, P. Conlin, T. Hwang, S.-G. Doo, K. Cho
Adv. Energy Mater.
2024(18)
M. Bergschneider, F. Kong, T. Hwang, Y. Jo, D. Alvarez, K. Cho
Phys. Chem. Chem. Phys.
2024(17)
T. Hwang, P.-C. Lee, A. C. Kummel, K. Cho
ACS Appl. Mater. Interfaces
2024(15)
J. Hwang, D. Kim, Y. Lee, T. Hwang, J. Ahn, K. Cho
NANO
2024(14)
T. Hwang, W. Aigner, T. Metzger, A. C. Kummel, K. Cho
ACS Appl. Electron. Mater.
2022(8)
G.-H. Lee‡, T. Hwang‡, et al., M. Cho, Y.-M. Kang
J. Mater. Chem. A
2019(5)
T. Hwang‡, J.-H. Lee‡, et al., W. Cho, M.-S. Park
ACS Appl. Mater. Interfaces
2017(4)
D. Kim, T. Hwang, J.-M. Lim, M.-S. Park, M. Cho, K. Cho
Phys. Chem. Chem. Phys.
2016(2)
J.-M. Lim, T. Hwang, M.-S. Park, K. Cho, M. Cho
Chem. Mater.
2015(1)
Y. Lee, H. Lee, T. Hwang, J.-G. Lee, M. Cho
Sci. Rep.
In preparation / under review
2026
A Self-Pumping Ion Reservoir with Dual-Functional Ion Sieving for Dendrite-Free Aqueous Zinc Batteries
T. Hwang‡, H. Tao‡, Y. Yang, Q. Jin
Under revision
2026
Systematic analysis for the enhanced electro-optic response in scandium-doped aluminum nitride AlScN
T. Hwang‡, X. Lang‡, K. Cho
Under revision
05

News

뉴스 · 공지
2026.09
LAB
Multiscale AI Energy Lab has opened.
Prof. Taesoon Hwang joined School of Mechanical Engineering, Gyeongsang National University
2026.09
RECRUIT
Recruiting M.S./Ph.D. students and undergraduate interns for 2027.
Both simulation and experiment backgrounds welcome — please reach out below.