| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Porous Materials for Energy and Environment Applications
|
| Presentation Title |
C-Rate Dependent Degradation Regimes in LiFePO4-based Lithium-Ion Batteries |
| Author(s) |
Cole Hobby, Alfredo Sanjuan, Edwin García |
| On-Site Speaker (Planned) |
Cole Hobby |
| Abstract Scope |
The degradation of Lithium-Ion Batteries is a consequence of the accumulated electrochemical history of the porous electrochemical devices, which depends not only on the charge rate(s), but the charging sequence, during cycling. This capacity loss consists of multiple non-linear contributions, such as homogeneous and heterogeneous solid electrolyte interphase and fracture induced fatigue.In this talk, the useful life of LiFEPO4 and graphite 18650 A123Systems cell is simulated by applying a physics-based degradation model to different fast charging combinations to identify the conditions for optimal recharging performance, while minimizing the charge capacity degradation. The analysis encompasses a range of C-rates, from C/2 to 10C, at room temperature and analyzes the impact of cycling on the delivered Ragone plot and Charge vs C-Rate behavior. |