Narsarsukite Na2TiOSi4O10 as a low voltage silicate anode for rechargeable Li-ion and Na-ion batteries

• Main Authors: Chaupatnaik, Anshuman, Srinivasan, Madhavi, Barpanda, Prabeer
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Materials; Batteries; Energy Storage
• Online Access: https://hdl.handle.net/10356/143388
• Institution: Nanyang Technological University

Phase-pure Narsarsukite Na2TiOSi4O10, prepared by solid-state reaction, was found to reversibly (de)intercalate one lithium by utilizing the Ti(IV)/Ti(III) redox couple. Registering a low operational voltage at 0.58 V, it delivered near theoretical capacity of 70 mAh·g-1 at a rate of C/10. Excellent...