| Abstract Title |
Examination of acceptable cell dispersion in passive space battery systems |
| Abstract Author(s) |
Jeremy Neubauer, Robert Wright, Chris Pearson (ABSL) |
| Abstract Presenter |
Jeremy Neubauer |
| Abstract |
Many Lithium Ion battery systems employ some form of an active battery management capability to balance the voltages of different cells in a string. However, ABSL has safely and successfully flown batteries on long life space missions without cell level voltage balancing, and other battery providers have supplied passive batteries to a spectrum of different applications. The validity of such an approach is often contested due to concerns stemming from familiarity with actively controlled systems seen as the “only way”.
ABSL has been a long standing proponent of passively balanced systems when implemented properly, while maintaining the position that not all Lithium-ion cells can be utilized passively. This paper presents cell level voltage dispersion data from varied long term test cases to offer an insight into when passive architectures are viable and when they are not, as well as a discussion of the limitations of such systems. |
|
