Publications Repository - Gdańsk University of Technology

Tin oxide is one of the most promising electrode materials as a negative electrode for lithium-ion batteries due to its higher theoretical specific capacity than graphite. However, it suffers lack of stability due to volume changes and low electrical conductivity while cycling. To overcome these issues, a new composite consisting of SnO2 and carbonaceous matrix was fabricated. Naturally abundant and renewable chitosan was chosen as a carbon source. The electrode material exhibiting 467 mAh g−1 at the current density of 18 mA g−1 and a capacity fade of only 2% after 70 cycles is a potential candidate for graphite replacement. Such good electrochemical performance is due to strong interaction between amine groups from chitosan and surface hydroxyl groups of SnO2 at the preparation stage. However, the charge storage is mainly contributed by a diffusion-controlled process showing that the best results might be obtained for low current rates

Authors

• dr hab. inż. Andrzej Nowak link open in new tab ,
• prof. dr hab. inż. Maria Gazda link open in new tab ,
• dr inż. Marcin Łapiński link open in new tab ,
• mgr inż. Zuzanna Zarach link open in new tab ,
• dr inż. Konrad Trzciński link open in new tab ,
• dr inż. Mariusz Szkoda link open in new tab ,
• dr inż. Szymon Mania link open in new tab ,
• Jinjin Li,
• dr hab. inż. Robert Tylingo link open in new tab