When precision chemistry powers the batteries of tomorrow
A battery is not just a technology. It is battery chemistry.
Every battery powering an electric vehicle, a smartphone or an energy-storage system relies on a simple principle: transforming molecular reactions into usable energy.
What truly distinguishes a high-performance battery from an ordinary one is not the electrons—but the molecules that make them possible.
Carbonates, esters, solvents, SEI additives, electrolyte components, active materials: even a slight modification of their organic structure can improve stability, accelerate ion conduction or extend cycle life.
Studies by Tsuneda et al. [1], Li et al. [2], Zhang et al. [3], Wang et al. [4] and Wolke et al. [5] converge toward the same conclusion: battery performance is largely determined by organic chemistry, electrolyte behavior and the properties of lithium-ion materials, whether cathode, anode, NMC or nickel- and cobalt-based systems.
Turning Innovation into Production: The Industrial Challenge
To meet growing expectations in performance, durability and safety, Europe must combine chemical innovation with industrial scale-up. Research no longer stops discovering new molecules: it now encompasses electrolyte formulation, process development, optimized materials engineering and securing global supply chains.
From laboratory to pilot, then to multi-site production, every step becomes strategic to turn an idea into a reliable industrial solution. Industrialization requires robust processes ensuring consistent quality at scale, while R&D explores cleaner and safer chemistries compatible with demanding regulatory environments.
This synergy is essential to deliver high-performance, competitive and local batteries, strengthening Europe’s position in a rapidly expanding global battery industry.
The Strategic Role of Custom manufacturing partner in the Battery Value Chain
In a field where organic synthesis, electrochemical performance and process mastery determine final results, custom manufacturing partner plays a decisive role. They bring the expertise needed to transform a molecule into an industrializable product: securing raw materials, optimizing formulations, and transferring laboratory innovations to large-scale production.
Through their capabilities in complex synthesis, they ensure reproducibility and quality of critical components—electrolytes, solvents, additives, active materials—while reducing risks associated with ramping up production capacity. Backed by strong R&D infrastructure and multi-site manufacturing, they accelerate innovation, reinforce supply-chain robustness and help meet the performance and safety standards of next-generation batteries.
A Contribution Across Entire Battery Value Chain
Specialized players intervene where market needs are the most critical—from lithium extraction to the processing of cathode/anode slurries and the recycling of active materials. They support the development of molecules, membranes or extraction agents for strategic-metal recovery. They also manufacture high-purity precursors and solvents essential to electrolyte production, ensuring a controlled transition from laboratory to industrial scale.
They collaborate with recyclers—whether using hydrometallurgy or electrochemical routes—by producing molecules tailored to selectivity, metal recovery and purification.
From initial formulation to industrial production, from precursor to recycling, each expertise adapts to every link of the value chain: material producers, cell manufacturers, extractors and recyclers. Every need becomes a dedicated molecular solution. Every step becomes an opportunity for chemical excellence supporting battery performance, energy density and long-term stability.
Seqens: Mastering the Molecule That Changes Everything
With more than 60 years of expertise in complex organic chemistry, Seqens acts as a trusted industrial partner across the entire value chain—from design to development and full industrialization—creating tailored molecular solutions that accelerate innovation and secure battery supply chains.
Our mission: support companies in manufacturing their products through a complete offer in custom organic synthesis. Whether stabilizing an existing molecule, optimizing its performance or scaling it up, we mobilize our expertise to turn each project into a proven industrial success.
Williamson reactions, Grignard reactions, esterification, sulfurization, chlorination, halogenation, cyclization, controlled polymerization, multi-step synthesis—each reaction becomes a lever to enhance performance, meet specifications and strengthen industrial robustness.
With a state-of-the-art R&D center and four industrial sites in Europe, Seqens transforms customer needs into reliable, reproducible and fully industrializable molecular solutions.
Your molecule becomes a controlled process.
Your need becomes a robust solution.
Organic chemistry becomes a strategic tool—and you become co-author of the molecule that makes the difference.
The Energy Transition Demands More Than Better Materials
It requires clean, safe, high-performance chemistry, designed to last.
This is precisely what Seqens delivers:
- Tailor-made chemistry
- European industrial expertise
- Proven capacity to turn formulas into value
- A clear ambition: giving tomorrow’s batteries the power they deserve
Seqens. Precision chemistry that moves the world forward.

References
- [1] Tsuneda, T.; Tateyama, Y. On principal features of organic electrolyte molecules in lithium ion battery performance. Phys. Chem. Chem. Phys. 2019, 21, 22990–22998.
- [2] Li, M.; Hicks, R. P.; Chen, Z.; Luo, C.; Guo, J.; Wang, C.; Xu, Y. Electrolytes in Organic Batteries. Chem. Rev. 2023, 123 (4), 1712–1773.
- [3] Zhang, J.; Li, J.; Wang, H.; Wang, M. Research progress of organic liquid electrolyte for sodium ion battery. Front. Chem. 2023, 11, 1253959.
- [4] Ye, C.; Wang, A.; Breakwell, C.; Tan, R.; Bezzu, C. G.; Hunter-Sellars, E.; Williams, D. R.; Brandon, N. P.; Klusener, P. A. A.; Kucernak, A. R.; Jelfs, K. E.; McKeown, N. B.; Song, Q. Development of efficient aqueous organic redox flow batteries using ion-sieving sulfonated polymer membranes. Nat. Commun. 2022, 13, 3184.
- [5] Wolke, M.; Schröder, K.; Arnold, K.; Mozumder, P.; Beuerle, T.; Jasch, K.; Scholl, S. Analyzing Organic Electrolyte Solvents from Spent Lithium-Ion Batteries as a Basis for Distillative Value Component Recovery. Recycling 2025, 10 (1), 19.