NUMERICAL ANALYSIS OF LITHIUM-ION BASED BATTERY SYSTEM WITH 21700 CONFIGURATION SUBJECTED TO QUASI- STATIC AND DYNAMIC LOADING CONDITIONS
The use of battery cells continues to grow over time. Currently, batteries are widely used on various platforms, such as electronic devices, and electric vehicles, which are currently developed widely in the United States and Europe. Batteries need to be well understood as to how the conditions for...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/62668 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The use of battery cells continues to grow over time. Currently, batteries are widely used on various platforms, such as electronic devices, and electric vehicles, which are currently developed widely in the United States and Europe. Batteries need to be well understood as to how the conditions for the safety of battery cells are and how failure can occur. In this research, a study was conducted on the cylindrical battery Lithium-Ion (li-ion) 21700 variant with bending and lateral loading. The test will be carried out under quasi-static and dynamic conditions.
The research was carried out by making a model similar to the li-ion battery cell model of 18650 variant by Sahraei et al. as a modeling reference for 21700 variant. The model was simulated with 3 lateral quasi-static loading cases, namely rigid rod indentation, hemispherical punch, and 3-point bending. The model is tested under the same conditions as the 18650 battery model to see the difference in force and displacement response in the 21700 battery model. The test is also carried out with dynamic loading to see the effect of the impactor velocity (5 m/s,
10 m/s, 15 m/s, and 20 m/s) on the force and displacement response received by the battery 21700 model. The results for the lateral quasi-static loading simulations show that the force and displacement response of the 21700 model are greater than the 18650 model by 34% and 15% for rigid rod indentation case, 16% and 13% for hemispherical punch case, and 19% and 10% for 3-point bending case, respectively. The results for dynamic loading shows that with increasing impact velocity, the peak force and displacement experienced by the battery cell are higher than the quasi-static loading. The displacement that occurs will also be greater with the increasing velocity of the impactor by 14–30% for the peak force and 5–16% for the displacement.
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