| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
14th Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing
|
| Presentation Title |
Mesoporous TiO2 as an Alternative Anode for Fast Chargeable Lithium-ion Battery |
| Author(s) |
Palani Balaya |
| On-Site Speaker (Planned) |
Palani Balaya |
| Abstract Scope |
State-of-the-art battery systems are not able to meet requirements for transportation and grid technologies. Battery technology seeks new concepts in materials design to overcome current limitations of performance and lifetime. Commercial lithium-ion battery uses graphite anode which is unsafe during fast-charging. Currently, industries provide fast chargeable battery technology using Li4Ti5O12 assuring safety. However, Li4Ti5O12 anode has limited storage capacity (170 mAh/g). Inexpensive TiO2 has relatively higher storage capacity (335 mAh/g). In this talk, we present our work on soft-template synthesized mesoporous TiO2 (meso-TiO2). Meso-TiO2 mixed with 15% carbon shows enhanced storage capacity of 265 and 107 mAh/g at C/5 and 30C respectively and appreciable storage performance without additive carbon. We discuss the cause for the observed enhanced storage behavior in meso-TiO2 in terms of (a) formation of conducting surface layers due to LixTiO2 upon Li insertion and (b) accumulation of electrons at the interfaces in dense packed pristine meso-TiO2. |