Projekter pr. år
Lithium-ion batteries are used in a wide range of applications such as electric vehicles and energy storage systems. However, the aging of the battery cell is inevitable. Especially for battery packs with hundreds of battery cells connected in series/parallel, the aging process will be aggravated due to the difference between battery cells, leading to a limited lifetime and reliability issues. This paper introduces the concept of Smart Battery that combines advanced power electronics and artificial intelligence (AI) intending to develop a new generation of battery solutions for transportation and grid storage. The key feature for controlling the lifetime is the bypass device, a half-bridge that can control individual cell-level load management without affecting the load. An advanced AI-based lifetime controller is trained to recognize the signs of stressed battery cells and decide to insert rest time, resulting in a pulsed current operation. Finally, the following features are expected to be achieved: increased safety and reliability by fault-tolerant operation, user-controlled lifetime, and software reconfiguration for 2nd life applications. The early experimental results are promising, showing cycle lifetime extension over 50%.
|Titel||5th E-Mobility Power System Integration Symposium|
|Status||Udgivet - 2021|
|Begivenhed||5th E-Mobility Power System Integration Symposium - Berlin, Tyskland|
Varighed: 27 sep. 2021 → 27 sep. 2021
|Konference||5th E-Mobility Power System Integration Symposium|
|Periode||27/09/2021 → 27/09/2021|
FingeraftrykDyk ned i forskningsemnerne om 'Smart Battery Concept: A Battery that Can Breathe'. Sammen danner de et unikt fingeraftryk.
- 1 Afsluttet
Integrated Modular Power Conversion for Renewable Energy Systems with Storage (IMPRESS)
Kerekes, T., Teodorescu, R. & Acharya, A. B.
01/10/2019 → 30/09/2021
Projekter: Projekt › Forskning
- 1 Ph.d.-afhandling
The Effects of Pulsed Charging Current on the Performance and Lifetime of Lithium-Ion BatteriesHuang, X., 2021, Aalborg Universitetsforlag. 77 s. (Ph.d.-serien for Det Ingeniør- og Naturvidenskabelige Fakultet, Aalborg Universitet).
Publikation: Bog/antologi/afhandling/rapport › Ph.d.-afhandlingÅben adgangFil240 Downloads (Pure)