Management System for Large Li-Ion Battery Packs with a New Adaptive Multistage Charging Method

Among the wide diversity of existing technologically mature batteries, lithium-ion (Li-ion) batteries have become popular because of their longevity, high energy density, high efficiency and lack of memory effect. Differential charging of cells with age has turned balancing management systems into a...

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Bibliographic Details
Published in:Energies (Basel) 2017-05, Vol.10 (5), p.605
Main Authors: Velho, Ricardo, Beirão, Miguel, Calado, Maria, Pombo, José, Fermeiro, João, Mariano, Sílvio
Format: Article
Language:English
Subjects:
Adaptive systems
Batteries
battery charge equalization
battery management system
cell balancing
Charging
Energy management
Evolution
Flux density
large Li-ion battery pack
Life span
Lithium
Lithium-ion batteries
Longevity
Methods
Multistage
Power efficiency
Power management
Versatility
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Summary:Among the wide diversity of existing technologically mature batteries, lithium-ion (Li-ion) batteries have become popular because of their longevity, high energy density, high efficiency and lack of memory effect. Differential charging of cells with age has turned balancing management systems into an important research subject. This paper proposes a new battery management system (BMS) to improve the capacity usage and lifespan of large Li-ion battery packs and a new charging algorithm based on the traditional multistage method. The main advantages of the proposed system are its versatility and ability to implement different charging and balancing methods in a very accessible way. The combination of charging methods with balancing methods represents an evolution when compared with other works in the literature.
ISSN:1996-1073
1996-1073
DOI:10.3390/en10050605