FEI STU · Batterylab

Our Research

We transform deep understanding of energy materials, aging, sensing, and modeling into advanced energy storage solutions for batteries, supercapacitors, and hydrogen systems. Six research areas — one interdisciplinary team — deep scientific expertise

6

Research Areas

12+

Active projects

10

Research partners

Battery Technologies

Battery Technologies & Energy Storage Systems

We cover the full innovation chain from advanced materials through to diagnostics, modelling, and degradation-informed control. Our work combines comprehensive electrochemical characterisation with cycle-life studies, structural analysis, and equivalent-circuit modelling to understand, predict, and extend battery lifetime across a wide range of operating conditions.

Research Topics

  • Electrochemical characterisation & aging analysis
  • Li-ion, solid-state & zinc-ion battery research
  • Degradation mechanisms & reliability analysis
  • Fast-charging strategies & lifetime optimisation
  • Thermal management design & simulation
  • Second-life applications & regeneration strategies
  • AI & machine learning for battery technologies
  • Prototype development & validation

Projects

ENSAMAT

Advanced Safety-Enhanced Materials for Li-ion Batteries

Slovak RRP

ZERO (APVV-22-0132)

Anode-Free Solid-State Lithium Batteries

National APVV / VEGA

APVV-24-0321

Advanced Real-Time Monitoring of Solid-State Batteries for Performance Enhancement

National APVV / VEGA

APVV-20-0111

Advanced Long-Life Lithium Batteries

National APVV / VEGA

MoS₂-ZIBNext

MoS₂-based Zinc-Ion Battery Technologies

EU (MSCA Postdoctoral Fellowship)

BATSYS

Intelligent battery systems

Internal STU

Supercapacitors

Supercapacitors & Hybrid Energy Storage

We develop hybrid energy storage based on advanced 2D materials, covering electrode preparation through prototype assembly to full electrochemical performance evaluation. Our focus spans material synthesis, structural characterisation, and loss mechanism analysis, with an emphasis on structure–property–performance correlation for optimising energy density and cycle stability.

Research Topics

  • 2D TMD materials, oxides, sulfides & carbon hybrids
  • Electrode fabrication on solid & flexible substrates
  • Electrochemical diagnostics: CV, GCD, EIS, SECM, LSV
  • Stability, cycle life & loss mechanism analysis
  • Supercapacitor prototype development
  • Mathematical modelling & power management
  • Battery–supercapacitor hybrid system integration

Projects

2DSuperCap

Advanced Hybrid Supercapacitor Elements Based on 2D Materials

Slovak RRP

VEGA 1/0707/24

Research and Development of Materials and Structures Based on Nanostructured Transition Metal Chalcogenides

National APVV / VEGA

Space & Harsh Environments

Battery Systems for Harsh Environments

We develop and validate battery and hybrid energy storage systems for extreme and mission-critical environments. Our work combines stress testing — sub-zero cycling, pulsed loads, and accelerated aging protocols — with advanced diagnostics to detect early degradation signatures. Projects include collaborations with ESA for space and aviation applications.

Research Topics

  • Low-temperature operation & sub-zero cycling
  • Hybrid energy storage systems (HESS)
  • Pulsed load & dynamic stress testing
  • Accelerated aging protocols & lifetime prediction
  • Satellite & CubeSat energy power systems (EPS)
  • Thermo-vacuum testing and analysis
  • Space and aviation-grade reliability constraints

Projects

STEPHANIK

Slovak Technical Ecosphere Platform

Slovak RRP

HESS

Design and Development of a Hybrid Energy Storage System for Space Application

ESA

Digital Twins & AI

Simulations, modeling & AI

We integrate experimental data, physics-based models, and AI into predictive frameworks for battery systems. Our work spans multiphysics simulation, intelligent monitoring, digital twin development, and virtual testing — bridging cell-level characterisation with full system-level deployment and reliability engineering.

Research Topics

  • Physics-informed AI (PINN) for state estimation
  • Digital twin development & virtual testing
  • Multiphysics simulation (COMSOL, MATLAB)
  • SOC / SOH / SOS / T estimation algorithms
  • Thermal runaway modelling & safety-by-design
  • Intelligent reliability & electronic packaging
  • Battery Passport & EU Battery Regulation
  • Life-cycle assessment (LCA) & sustainability analysis

Projects

FreeTwinEV

Fostering Research Excellence of STU in Digital Twinning for Sustainable and Safe EVs

Horizon Europe

iRel40

Intelligent Reliability 4.0

Horizon Europe

E2PACKMAN

European Consortium for Accelerating Innovations in Electronic Packaging Manufacturing

Horizon Europe

Hydrogen Technolologies

Hydrogen & Photoelectrochemical Solar Energy Systems

We research catalyst preparation, stable interface engineering, and electrolyzer configuration for green hydrogen production. Activities include photoelectrochemical water splitting, solar simulator testing, long-term stability analysis, and the development of hydrogen sensors — working toward integrated solar-to-fuel systems.

Research Topics

  • Catalyst preparation: TMD, oxides, sulfides & carbon-based
  • Electrolyzer testing & operating-point mapping
  • Photoelectrochemical structures & MIS photoelectrodes
  • Solar simulator testing & conversion efficiency
  • Long-term stability & corrosion analysis
  • Hydrogen sensor development & characterisation
  • Hydrogen storage system research

Projects

APVV-17-0169

Nanotechnology of MIS Photoelectrodes with Metal Oxides for Solar Fuel Production

National APVV / VEGA

VEGA 1/0529/20

Research of Progressive Heterostructures for Photoelectrochemical and Optoelectronic Applications

National APVV / VEGA

ERG

Energy for a Green Society

EU (ENIAC JU)

Education & Ecosystem

Education, Talent Development & Innovation Ecosystem

We actively integrate research excellence into education, building a skilled pipeline of engineers and researchers in battery technologies, energy systems, and digital twin methodologies. Our activities connect advanced laboratory infrastructure with MSc and PhD training, industry collaboration, and international mobility schemes through EU and ESA programmes.

Research Topics

  • MSc & PhD research training in energy storage
  • EBA Academy curriculum (supported by InnoEnergy)
  • SKEBA — University & Industry Education Platform
  • Slovak Battery Alliance (SBaA) membership
  • EU & ESA international mobility schemes
  • Industry-linked research and student projects
  • Techno-economic education in sustainable energy

Projects

TEVIN

Techno-economic education and innovation in sustainable energy

Internal STU