Company Filing History:
5 out of 187 
4 out of 5,089 
1 out of 1 Years Active: 2008-2012
Title: Sylvain Gwizdala: Innovator in Lithium Battery Technology
Introduction
Sylvain Gwizdala is a prominent inventor based in Brienon sur Armancon, France. He has made significant contributions to the field of lithium battery technology, holding a total of 5 patents. His work focuses on enhancing the performance of rechargeable lithium batteries through innovative materials and processes.
Latest Patents
One of his 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 for achieving 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 evaporation of water, polyesterification occurs, forming a mixed precipitate. 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, Sylvain Gwizdala has worked with notable organizations such as Umicore and the Centre National de La Recherche Scientifique. His experience in these companies has allowed him to develop and refine his innovative approaches to battery technology.
Collaborations
Sylvain has collaborated with esteemed colleagues, including Calin Wurm and Mathieu Morcrette. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Sylvain Gwizdala's contributions to lithium battery technology through his innovative patents and collaborations highlight his role as a key inventor in the field. His work continues to influence the development of more efficient and effective rechargeable batteries.