Investigation of Individual Cells Replacement Concept in Lithium-Ion Battery Packs with Analysis on Economic Feasibility and Pack Design Requirements
| Autor: | Manh-Kien Tran, Carlo Cunanan, Satyam Panchal, Roydon Fraser, Michael Fowler |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
battery cost analysis
020209 energy Process Chemistry and Technology Chemical technology Bioengineering 02 engineering and technology lithium-ion battery TP1-1185 021001 nanoscience & nanotechnology 7. Clean energy battery modeling battery life optimization Chemistry 0202 electrical engineering electronic engineering information engineering Chemical Engineering (miscellaneous) battery cell replacement battery degradation 0210 nano-technology QD1-999 |
| Zdroj: | Processes, Vol 9, Iss 2263, p 2263 (2021) Processes; Volume 9; Issue 12; Pages: 2263 |
| ISSN: | 2227-9717 |
| Popis: | The optimization of lithium-ion (Li-ion) battery pack usage has become essential due to the increasing demand for Li-ion batteries. Since degradation in Li-ion batteries is inevitable, there has been some effort recently on research to maximize the utilization of Li-ion battery cells in the pack. Some promising concepts include reconfigurable battery packs and cell replacement to limit the negative impact of early-degraded cells on the entire pack. This paper used a simulation framework, based on a cell voltage model and a degradation model, to study the feasibility and benefits of the cell replacement concept. The simulation conducted in MATLAB involves generating and varying Li-ion cells in the packs stochastically and simulating the life of the cells as well as the packs until they reach their end-of-life stage. It was found that the cell replacement method can increase the total number of cycles of the battery packs, effectively prolonging the lifespan of the packs. It is also determined that this approach can be more economically beneficial than the current approach of simple pack replacement. For the cell replacement concept to be practical, two main design criteria should be satisfied including individual cell monitoring and easy accessibility to cells at failure stage. |
| Databáze: | OpenAIRE |
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