Faculty Directory

Mo, Yifei

Mo, Yifei

Professor
Materials Science and Engineering
Maryland Energy Innovation Institute
1137 Engineering Laboratory Building

EDUCATION

  • Postdoctoral Research Associate, Massachusetts Institute of Technology, 2010-2013
  • Ph.D., University of Wisconsin-Madison, 2010

HONORS & AWARDS

Editorial Board

 

  • Computational materials science
  • Computational materials design and materials discovery
  • Molecular dynamics simulations
  • Large-scale atomistic modeling
  • Materials for energy storage and conversion

My research advances the understanding, design, and discovery of materials through computation and AI, targeting critical materials problems that limit high-impact technologies such as energy storage, conversion, and computing. Our computational modeling delivers fundamental physical insight and the ability to rationally design new materials. 

Watch videos of our research presentations here

Accelerated materials design and discovery through computation and AI/ML. We combine high-throughput first-principles computation with machine learning to design and discover materials, evaluating the full set of properties — phase stability, electrochemical stability, interface compatibility, synthesizability, thermal and moisture stability — that determine whether a material actually works in application. This approach has led to the discovery of new solid-electrolyte chemistries, including mixed-anion oxyhalide Li-ion conductors and Na-ion-conducting chloride families, several of which have since been confirmed experimentally and, in one case, patented industrially. 

Selected publications: Science, 390, 199-204 (2025); Nature Chemistry, 16, 1584-1591 (2024); Nature Communications, 14, 7615 (2023); Advanced Materials, 36, 2308012 (2024); Journal of the American Chemical Society, 145, 2183-2194 (2023); Advanced Energy Materials, 9, 1902078 (2019); Nature Communications, 10, 5260 (2019); Joule, 2, 2016-2046 (2018)Nature communications, 8, 15893 (2017)Advanced Energy Materials, 1702998 (2018)Advanced Science, 1600517 (2017)Physical Chemistry Chemical Physics, 17, 18035-18044 (2015)Nature Materials, 14,1026–1031(2015)

 

Understanding and designing materials interfaces in energy storage systems. Interfaces are often the limiting factor in battery performance and processing. We use first-principles thermodynamics and large-scale atomistic simulation to reveal how solid-electrolyte/electrode interfaces degrade, how Li stripping and plating proceed and fail at the atomic scale, and how protective coatings can stabilize these interfaces — with several predictions (interfacial amorphous Li layers, amorphous-to-BCC Li deposition pathways) since confirmed by experiment.

Selected publications:  Nature Communications, 14, 2986 (2023); Angewandte Chemie Int. Ed., 60, 21494 (2021); Advanced Materials, 33, 2008081 (2021);  Angewandte Chemie Int. Ed., 59, 8039-8043 (2019), ACS Energy Letters, 4, 2444-2451 (2019), Joule, 2, 2016-2046 (2018)Journal of Materials Chemistry A, 4, 3253-3266 (2016) (Front cover); Advanced Science, 1600517 (2017)ACS Applied Materials & Interfaces, 7, 23685-23693 (2015)

Large-scale atomistic modeling of complex materials phenomena. Large-scale atomistic simulation captures materials behavior governed by long length and time scales that are inaccessible to first-principles methods alone. We apply this to Li/Na/Mg/Zn metal-anode failure and crystallization mechanisms, disorder-to-order transitions in high-entropy nanoparticles, and mechanical deformation and friction at interfaces. 







Selected publications: Nature Communications, 14, 2986 (2023); Angewandte Chemie Int. Ed., 60, 21494 (2021); Advanced Materials, 33, 2008081 (2021);   Nature, 457, 1116-1119 (2009)Nature Materials, 12, 9-11 (2013)Journal of Physics D: Applied Physics, 44, 405401 (2011)Applied Physics Letters, 90, 181926 (2007)

Trustworthy, interpretable AI/ML for materials science. Rather than treating machine learning as a black box, we develop AI/ML methods that are rigorously tested, physically interpretable, and capable of revealing new mechanisms — including application-oriented benchmarks for machine-learning interatomic potentials and our Density of Atomistic States (DOAS) framework for quantifying disorder and frustration in ion transport.

Selected publications: npj Computational Materials, 9, 174 (2023); npj Computational Materials, 10, 159 (2024); Acta Materialia, 268, 119742 (2024); Angewandte Chemie Int. Ed., 62, e202215544 (2023)

 

  • ENMA 461: Thermodynamics of Materials
  • ENMA 400 / ENMA 600: Atomistic Modeling in Materials (Formerly ENMA 489A/ENMA 698A)
  • ENMA 401 / ENMA 601: Continuum Modeling of Materials (Formerly ENMA 489C/ENMA 698C)
  • ENMA 300 / ENME 382: Introduction to Materials Engineering
  • ENMA 688: Seminar in Materials Science and Engineering
  • ENMA 499: Senior Laboratory Project 
  • PHYS 499A: Special Problems in Physics
  • ENMA 698: Special Problems in Engineering Materials
  • ENMA 312: Experimental Methods in Materials Science (Guest lecturer for computational methods) 







     

See full publication record on [Google Scholar][Web of Science][ORCID][ResearchGate]

Selected Publications

*  corresponding author; # group members in multiple-group collaboration papers; 1 co-first authors. 

 

New Oxyhalide Electrolyte Breaks Barriers for Solid-State Battery Performance

New ‘Mixed-Anion’ Materials Deliver Record Ion Conductivity with Unprecedented Stability

Students’ Research on Lithium Garnet Electrolytes Reveals Transformative Solid-State Energy Solutions

Student team led by Yifei Mo publishes solid-state battery innovation in ACS Energy Letters.

Advanced Solid Electrolytes Break World Record for Ionic Conductivity

UMD and collaborators develop method to optimize halide solid electrolytes that achieves unprecedented levels of ionic conductivity.

$2M NSF Grant to Advance Future of Semiconductors Technology and Workforce

UMD Researchers Will Work to Discover New Materials to Safeguard Nation’s Supply of Crucial Tech Hardware

Ten Maryland MSE Faculty Members Ranked in Top 2% of World Scientists

Elsevier releases updated science-wide database

Engineering a Multi-Element Atomic Arrangement

A novel disorder-to-order transition strategy for ordered nanoparticles published in Science Advances.

Nine Maryland Engineers Recognized as Being "One in 1,000"

Clark School researchers among the "who's who" of influential researchers, according to Clarivate.

UMD-Led Team Wins NSF Award for Rapid Materials Design

The collaborative team receives $1.8 million in funding to develop an integrated framework to drive the rapid design of novel materials for batteries and fuel cells.

Seven Students Win 2021 Dean's Research Awards

From fabricated human tissue to Wifi beamed from space, awards recognize cutting-edge research

CREB Kicks Off 2021 with Meeting to Discuss Future of Battery Research

The virtual meeting aimed to bolster battery technology under extreme conditions.

MSE Graduate Student Adelaide Nolan Receives MRS Award

Nolan took the "Best Student Presenter Award" at the 2020 fall meeting.

MSE Alum Awarded NSF Graduate Research Fellowship

Alexander Epstein is on track to complete his Ph.D. at UC Berkeley in 2023. 

New, superfast method for ceramic manufacturing could open door to AI-driven materials discovery

UMD engineers have reinvented a 26,000-year-old manufacturing process into an innovative approach to fabricating ceramic materials.

MSE Ranked #23 by U.S. News and World Report

UMD’s Materials Science and Engineering Department hits #23 in U.S. graduate school rankings – its highest ranking yet.

2020 Hulka/Wells Energy Fellowships Awarded

Biofuel Production and Advanced Energy Storage Projects Selected

MSE Graduate Student Racks Up Multiple Honors

Adelaide Nolan recognized by UMD, NSF and Clearwater for her contributions to energy research.

The Battery Revolution

Fires in cell phones, laptops, and even a jumbo jet might have one thing in common: a liquid-electrolyte lithium-ion battery.

Hu, Leite and Mo Promoted

MSE professors honored at the 2019 Engineering Assembly.

Yifei Mo receives 3M Non-Tenured Faculty Award

Mo will receive $45K to help fund his research in engineered materials design.

Powerful X-ray Beams Unlock Secrets of Nanoscale Crystal Formation

Study published in the Journal of the American Chemical Society.

Mo Research Group's Solid-State Battery Review Published in Joule

Review discusses the advantages of all-solid-state battery chemistry.

MSE Undergrad wins ARL Student Competition

Sarah Adams recognized for her nanotechnology research.

MSE Research Reveals Unique Ionic Diffusion Mechanism in Super-Ionic Conductors  

Mo, He and Zhu devise an ‘ion transport highway’ for solid-state batteries.

MSE Researchers Discover New Materials, New Research Direction for High-energy Li-metal Batteries

Yifei Mo and team push development of high-energy rechargeable lithium batteries.

MSE Researchers Publish Series Study on All-Solid-State Batteries

Yifei Mo and team seek to improve all-solid-state Li-ion batteries.

New Software Will Enhance Materials Science and Engineering’s Undergraduate Program

UMD wins one of six computational design toolkits from ASM International.

Students Use UMD Supercomputer to Design, Test Materials

New course in computational materials design bridges theory and practice.

Discover, Create, Deploy: Professors Contribute to Materials Genome Initiative

Maryland MSE professor, alumnus co-author white paper on enhancing “materials innovation infrastructure.”

Leite, Mo Join MSE Faculty

Professors specialize in physical and computational materials science for sustainable energy applications.