5. Conclusion

The global thermal energy storage market is projected to grow by ∼ 12.5% annually by 2030, reaching an estimated value of over 65 billion €, driven by decarbonisation targets set for 2050. Solutions based on LiOH, owing to its high energy density and excellent cycling stability, offer a promising pathway to enhance renewable energy integration and reduce dependence on fossil fuels, significantly lowering CO ₂ emissions.

In this context, strengthening a circular economy approach is essential : recovering Lithium-based compounds after use, particularly from spent electrochemical batteries, helps ease pressure on natural resources while enabling the development of more robust and durable thermal batteries and accumulators.

Finally, the pronounced anisotropy of LiOH opens new and unexplored avenues,...