| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Energy Technologies and CO2 Management
|
| Presentation Title |
Effects on Operational Capabilities and Lifecycle of Commercially Available Li-ion Batteries Due to Partial Nail Penetration from Drop Hammer Impact Test |
| Author(s) |
Casey M. Jones, Bing Li, Vikas Tomar |
| On-Site Speaker (Planned) |
Casey M. Jones |
| Abstract Scope |
The purpose of this work was to simulate the operation of a cell in an abusive environment, such as those found in electric vehicles, aerospace applications, etc. A drop hammer test rig implementing a nail was used to penetrate approximately halfway through each cell during cycling at a rate of 1C, and the cells were allowed to continue cycling afterwards. The penetrations caused a rapid spike in temperature, resulting in decomposition of the electrolyte and solid electrolyte interface. Combined with the physical damage to the electrodes, this generated an accelerated aging of the cells under test. The discharge capacity for the first cycle after penetration was approximately 10% lower for each cell, and each cell’s capacity reached end-of-life criteria in an average of 43 cycles after the penetration. Peak incremental capacity values decreased approximately 15% by end-of-life as well, also showing a decreasing state of health after penetration. |
| Proceedings Inclusion? |
Planned: |