French battery company developing sodium-ion chemistries and modular, recyclable EV battery packs for the post-lithium energy transition.
TES Sustainable Battery Solution France is a private battery technology company specializing in the development, manufacturing, and integration of next-generation battery systems for energy storage and electric vehicles. Their work spans both advanced battery chemistry — contributing to sodium-ion and solid-state battery research — and the physical design of modular, reusable battery packs built for disassembly and recyclability. They bring an industrial implementation lens to R&D consortia: translating laboratory-level battery innovations into manufacturable, safe, and economically viable products. Their involvement in both stationary storage and EV battery applications positions them at the intersection of the clean energy transition and sustainable manufacturing.
Participated in SIMBA (2021–2024), a project developing sodium-ion and sodium metal batteries with solid-state electrolytes for stationary storage, focused on lower cost, longer lifetime, and improved safety.
Participated in MARBEL (2021–2025), targeting lightweight, modular EV battery packs using recycled aluminium and clip-based disassembly designed for ecodesign compliance and end-of-life reuse.
MARBEL includes contributions related to smart cell managers, BMS (battery management systems), balancing circuits, and predictive maintenance — indicating electronics and software integration capability.
Both SIMBA and MARBEL explicitly target efficient recycling, ecodesign, and reuse, suggesting this is a cross-cutting organizational priority rather than a single-project concern.
TES SBS France entered H2020 participation in 2021 through SIMBA, where the focus was squarely on battery chemistry: sodium batteries, solid-state electrolytes, and the material-level performance properties of cost, lifetime, and safety. In their second concurrent project, MARBEL, the emphasis shifted decisively toward mechanical design, assembly, and lifecycle thinking — recycled aluminium structures, clip-based disassembly, ecodesign, and intelligent battery management. This is less a chronological shift and more a two-track positioning: they are simultaneously engaged in upstream chemistry R&D and downstream pack engineering, suggesting an organization that bridges research and product development.
TES SBS France appears to be moving toward full-stack battery integration — combining advanced chemistries with smart management electronics and circular-by-design hardware — which makes them an increasingly relevant partner for EV platform developers and energy storage system integrators seeking sustainable, end-of-life-ready solutions.
TES SBS France has participated exclusively as a consortium partner across both H2020 projects, never taking a coordination role, which is typical of industrial companies that contribute applied expertise rather than lead research programs. Their consortium footprint is notably wide for an organization with only two projects — 29 unique partners across 12 countries — indicating they are embedded in large, multi-stakeholder European research consortia. This suggests they are valued as a specialist industrial contributor rather than a project manager, and are comfortable operating within complex multi-partner environments.
Despite only two H2020 projects, TES SBS France has built connections with 29 distinct consortium partners spanning 12 countries — an unusually broad network relative to their project volume. This reflects participation in large pan-European battery research consortia rather than narrow bilateral collaborations.
TES SBS France occupies a relatively rare position as an industrial private company (non-SME) engaged in both frontier battery chemistry research and practical battery pack engineering for EVs — most companies specialize in one or the other. Their dual focus on sodium-based chemistries (an emerging alternative to lithium) and ecodesign-first mechanical architecture gives them a differentiated profile in a field still dominated by lithium-ion incumbents. For a consortium builder, they offer the credibility of an industry actor that can take research outputs toward manufacturable, regulation-compliant products while keeping circular economy requirements central.
