A group of scientists from Osaka University, led by Professor Kota Motokhashi, has successfully created a new hard electrolyte with high conductivity, plasticity, and electrochemical stability. These properties are crucial for the development of more efficient and safer batteries in the future.
The researchers achieved this by incorporating tantalum pentoxide (TA2O5) into the solid electrolyte Natacl6, which had been developed previously. The resulting material, with the formula NA2.25TACL4.75O1.25, demonstrates high conductivity at room temperature.
In addition to conducting current effectively, the new electrolyte exhibits greater electrochemical stability compared to traditional chloride electrolytes. This means that batteries based on this electrolyte will be able to endure more charging cycles without significant capacity loss.
Moreover, the mechanical properties of the new material surpass those of existing analogues, making it ideal for creating reliable and durable batteries that are capable of withstanding mechanical stresses. Professor Motokhashi highlights the significance of these findings for the advancement of composite solid materials, suggesting that the new development will complement existing glass and crystalline models.
Going forward, the Japanese scientists intend to delve into the intricacies of ion conductivity in composite solid electrolytes and further enhance their performance. The potential applications of this technology span across various industries, signaling promising prospects for its utilization.