Zobrazeno 1 - 10
of 364
pro vyhledávání: '"P Stefanopoulou"'
Autor:
Movahedi, Hamidreza, Pannala, Sravan, Siegel, Jason, Harris, Stephen J., Howey, David, Stefanopoulou, Anna
Electric vehicle (EV) batteries are often underutilized. Vehicle-to-grid (V2G) services can tap into this unused potential, but increased battery usage may lead to more degradation and shorter battery life. This paper substantiates the advantages of
Externí odkaz:
http://arxiv.org/abs/2408.02139
Autor:
Wong, Clement, Weng, Andrew, Pannala, Sravan, Choi, Jeesoon, Siegel, Jason B., Stefanopoulou, Anna
Diagnosing imbalances in capacity and resistance within parallel-connected cells in battery packs is critical for battery management and fault detection, but it is challenging given that individual currents flowing into each cell are often unmeasured
Externí odkaz:
http://arxiv.org/abs/2405.17754
The battery state of health (SOH) based on capacity fade and resistance increase is not sufficient for predicting Remaining Useful life (RUL). The electrochemical community blames the path-dependency of the battery degradation mechanisms for our inab
Externí odkaz:
http://arxiv.org/abs/2405.12028
Current imbalance in dissimilar parallel-connected batteries and the fate of degradation convergence
This paper proposes an analytical framework describing how initial capacity and resistance variability in parallel-connected battery cells may inflict additional variability or reduce variability while the cells age. We derive closed-form equations f
Externí odkaz:
http://arxiv.org/abs/2310.10396
This work proposes a semi-empirical model for the SEI growth process during the early stages of lithium-ion battery formation cycling and aging. By combining a full-cell model which tracks half-cell equilibrium potentials, a zero-dimensional model of
Externí odkaz:
http://arxiv.org/abs/2305.18722
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract It has been widely suggested that the transition to battery electric vehicles will require 30% fewer assembly workers than those needed for internal combustion engine vehicles. Here, we use publicly available datasets on vehicle production a
Externí odkaz:
https://doaj.org/article/493073a38ffa4182b15a5463327b02b2
Voltage-based battery metrics are ubiquitous and essential in battery manufacturing diagnostics. They enable electrochemical "fingerprinting" of batteries at the end of the manufacturing line and are naturally scalable, since voltage data is already
Externí odkaz:
http://arxiv.org/abs/2303.07088
In this work, we derive analytical expressions governing state-of-charge and current imbalance dynamics for two parallel-connected batteries. The model, based on equivalent circuits and an affine open circuit voltage relation, describes the evolution
Externí odkaz:
http://arxiv.org/abs/2211.04961
Autor:
Weng, Andrew, Mohtat, Peyman, Attia, Peter M., Sulzer, Valentin, Lee, Suhak, Less, Greg, Stefanopoulou, Anna
Publikováno v:
Joule, Volume 5, Issue 11, 17 November 2021, Pages 2971-2992
Increasing the speed of battery formation can significantly lower lithium-ion battery manufacturing costs. However, adopting faster formation protocols in practical manufacturing settings is challenging due to a lack of inexpensive, rapid diagnostic
Externí odkaz:
http://arxiv.org/abs/2203.14158
Autor:
Drallmeier, Joseph A., Wong, Clement, Solbrig, Charles E., Siegel, Jason B., Stefanopoulou, Anna G.
With the increased pervasiveness of Lithium-ion batteries, there is growing concern for the amount of retired batteries that will be entering the waste stream. Although these batteries no longer meet the demands of their first application, many still
Externí odkaz:
http://arxiv.org/abs/2203.12376