| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials 2020: Translating Innovation into Pioneering Technologies
|
| Presentation Title |
Stress Relaxation and Battery |
| Author(s) |
Hanqing Jiang |
| On-Site Speaker (Planned) |
Hanqing Jiang |
| Abstract Scope |
The successful employment of Li metal anode in Li-ion or Li-S batteries is a critical step towards realizing a cell specific density beyond 500 Wh/kg, doubling the present battery performance. While considerable progress has been made in recent years to suppress Li dendrite growth via various approaches, the long-standing issue of Li dendrite formation upon cycling has fully addressed the problem under real operation conditions. One critical and fundamental aspect has not been explored and appreciated yet, namely, electroplating-induced stress has significant role on the morphology of plated Li, which is in fact ubiquitous in metal plating. It is unclear the role of stress plays in Li dendrite growth and moreover, there is no effective approach to control the stress in plated Li to mitigate Li dendrite growth. Here we present a mechanism to release the electroplating-induced compressive stress in Li during plating through soft electrodes. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |