Naslov
Determining Lithium-ion Battery One-way Energy Efficiencies: Influence of C-rate and Coulombic Losses

Autori
Bobanac, Vedran ; Bašić, Hrvoje ; Pandžić, Hrvoje

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
IEEE EUROCON 2021 - 19th International Conference on Smart Technologies / - , 2021, 385-389

Skup
IEEE EUROCON 2021 - 19th International Conference on Smart Technologies

Mjesto i datum
Lavov, Ukrajina, 06.07.2021. - 08.07.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Li-ion batteries, efficiency, experimental research

Sažetak
This paper addresses the lithium-ion battery efficiencies, a fundamental characteristic normally not given in battery specification sheets and often overlooked in research papers that consider battery application and modelling. In-house experiments were performed to obtain: (i) charging/discharging curves with different C-rates and (ii) open-circuit voltage characteristic. The results were used to analyze battery coulombic and energy efficiencies, which lead to methodology for accurately assessing one-way energy efficiencies. Utilization of accurate one-way efficiencies potentially improves a variety of battery models and algorithms for state-of-charge estimation. In addition, residual capacities (after discharging with higher C-rates) are measured and their influence on roundtrip efficiencies is assessed.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA