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Years Active: 2004-2012
Title: The Innovative Contributions of Calin Wurm
Introduction
Calin Wurm is a notable inventor based in Amiens, France. He has made significant contributions to the field of materials science, particularly in the development of advanced materials for rechargeable lithium batteries. With a total of 6 patents to his name, Wurm's work has the potential to impact energy storage technologies significantly.
Latest Patents
One of Wurm's latest patents is titled "Carbon-coated Li-containing powders and process for production thereof." This invention provides a new route for synthesizing carbon-coated powders with olivine or NASICON structures, which are promising for manufacturing rechargeable lithium batteries. The carbon-coating of powder particles is essential to achieve good performance due to the poor electronic conductivity of these structures. The preparation involves dissolving sources of lithium, iron, and phosphate in an aqueous solution with a polycarboxylic acid and a polyhydric alcohol. Upon water evaporation, polyesterification occurs, forming a mixed precipitate containing lithium, iron, and phosphate. The resin-encapsulated mixture is then heat-treated at 700°C in a reducing atmosphere, resulting in a fine powder of olivine LiFePO4, coated with conductive carbon. This powder, when used as active material in a lithium insertion-type electrode, demonstrates fast charge and discharge rates at room temperature and excellent capacity retention.
Career Highlights
Throughout his career, Calin Wurm has worked with prominent organizations such as Umicore and the Centre National de La Recherche Scientifique. His experience in these institutions has allowed him to collaborate on various innovative projects and contribute to advancements in battery technology.
Collaborations
Wurm has collaborated with notable colleagues, including Christian Masquelier and Mathieu Morcrette. Their combined expertise has furthered research in the field of energy storage materials.
Conclusion
Calin Wurm's innovative work in developing carbon-coated lithium-containing powders showcases his significant contributions to energy storage technology. His patents and collaborations reflect a commitment to advancing materials science, which may lead to more efficient rechargeable batteries in the future.