Projects per year
Abstract
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%.
Original language | English |
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Title of host publication | 5th E-Mobility Power System Integration Symposium |
Publication date | 2021 |
Publication status | Published - 2021 |
Event | 5th E-Mobility Power System Integration Symposium - Berlin, Germany Duration: 27 Sept 2021 → 27 Sept 2021 |
Conference
Conference | 5th E-Mobility Power System Integration Symposium |
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Country/Territory | Germany |
City | Berlin |
Period | 27/09/2021 → 27/09/2021 |
Keywords
- Smart Battery
- Artificial Intelligence
- Pulse Current
- Lifetime Extension
- Second-life Applications
Fingerprint
Dive into the research topics of 'Smart Battery Concept: A Battery that Can Breathe'. Together they form a unique fingerprint.Projects
- 1 Finished
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Integrated Modular Power Conversion for Renewable Energy Systems with Storage (IMPRESS)
Kerekes, T., Teodorescu, R. & Acharya, A. B.
01/10/2019 → 30/09/2021
Project: Research
Research output
- 1 PhD thesis
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The Effects of Pulsed Charging Current on the Performance and Lifetime of Lithium-Ion Batteries
Huang, X., 2021, Aalborg Universitetsforlag. 77 p.Research output: PhD thesis
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