Li4Ti5O12alapú

Li4Ti5O12alapú refers to materials based on lithium titanium oxide, specifically the compound Li4Ti5O12. This compound is a prominent example of a spinel-structured material and has garnered significant attention in the field of energy storage, particularly as an anode material for lithium-ion batteries. Its unique properties stem from its crystal structure, which allows for the reversible insertion and extraction of lithium ions without undergoing significant structural changes. This characteristic contributes to its excellent cycling stability and long lifespan.

The primary advantage of Li4Ti5O12 as an anode material is its zero-strain behavior during lithium intercalation and deintercalation. Unlike many other anode materials that experience volume expansion and contraction, Li4Ti5O12 exhibits minimal volume change, which drastically reduces mechanical stress on the electrode and prevents pulverization, leading to improved durability. Furthermore, Li4Ti5O12 has a high theoretical specific capacity and a flat voltage plateau, which are desirable for battery performance. It also offers enhanced safety due to its high electrochemical potential, which is higher than that of graphite, making it less prone to dendrite formation and thermal runaway.

Research and development efforts are ongoing to further optimize Li4Ti5O12-based materials. These efforts include nanoparticle synthesis, surface modification, and the creation of composite materials to enhance conductivity and address its relatively lower operating voltage compared to graphite. Applications for Li4Ti5O12 anodes are found in various lithium-ion battery systems, especially where safety, long cycle life, and fast charging capabilities are paramount, such as in electric vehicles, grid storage, and portable electronic devices.