Electrochemical Energy Storage and Conversion

Electrochemical Energy Storage and Conversion (ST2E)

The ST2E (Stockage et Transformation Electrochimiques de l’Energie – Electrochemical Energy Storage and Conversion) research team focuses on the synthesis, multi-scale characterization and analysis of the physico-chemical mechanisms at the heart of electrochemical energy storage and conversion devices. Structured around three main areas – batteries, supercapacitors & power batteries andhydrogen-fuel cells-electrolysers – the team brings together some fifty researchers, lecturers, engineers, post-docs and PhD students. It draws on a wide range of skills in inorganic and organic chemistry, oxide physical chemistry, electrochemistry, modeling and materials science.

With its recognized expertise, ST2E designs functional materials (electrodes with ionic and/or electronic conduction, solid electrolytes) and integrates them into operational devices, in conjunction with academic and industrial partners. Research aims to improve the performance, lifespan, safety andscope of use of systems, in particular by optimizing materials, controlling interfaces and designing new architectures. Eco-design and materials recycling are also integrated into the team’s overall approach.

Team news

Discover all ST2E publications on the HAL national archive.

I consult

Main themes

1. Batteries

2. Supercapacitors and power batteries

3. Hydrogen, Fuel Cells and High-Temperature Electrolysers

Cross-team themes

– Modelling

– Hybrid materials

Areas of expertise and tools

Electrochemistry
NMR, EELS, RAMAN, XAS spectroscopies
Electron microscopy
Synthesis of inorganic, organic and hybrid materials
Electronic structure calculations for solids
Operando characterization (by XRD, Raman, etc.)
Material shaping

Ongoing research projects (ANR, PEPR, Europe…)

36 contracts in progress: 1 Nantes University, 1 PDL region, 14 ANR, 7 PEPR, 5 European and 8 industrial; participation or coordination in PEPR Batteries, Decarbonated Hydrogen and DIADEM.

Projects

Teaching

Alongside their research activities, the ST2E team’s teacher-researchers are heavily involved in training, teaching courses in various bachelor’s, master’s and doctoral programs. They are also responsible for teaching in several Nantes University courses.

Training

Academic and industrial collaborations

Li-ion battery manufacturers and assemblers (French, Japanese…)
Manufacturer of current collectors (regional ETI) with the DEFIER laboratory
Li-polymer battery manufacturer (French) with joint laboratory IMN Blue Lab
Responsible for PLASSMAT’s pocket cell prototyping platform
Manufacturer of solid oxide fuel cell/electrolyser cells
Manufacturer of solid oxide fuel cell/electrolyser test benches
Integrator of solid oxide fuel cell/electrolyser systems
Manufacturers of lithium and sodium ion supercapacitors

Involvement in learned societies and scientific communities

Vice-presidency of the French Microscopy Society (Sfµ)
Direction IRN FACES Franco-Australian
Management of the CNRS Hydrogen Research Federation, FRH2
Chair of the “Organic Battery Days” conference bureau
Head of Division 3 of the International Society of Electrochemistry (energy storage and conversion)
“Fellow of the International Society of Electrochemistry
“Fellow of the Electrochemical Society