Naslov
One-way voltaic and energy efficiency analysis for lithium-ion batteries

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

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

Izvornik
13th Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion (MEDPOWER 2022) / - , 2022, 261-266

Skup
13th Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion (MEDPOWER 2022)

Mjesto i datum
Floriana, Malta, 07.11.2022. - 09.11.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
lithium-ion battery, voltaic efficiency, energy efficiency, open-circuit voltage characteristic

Sažetak
This paper focuses on experimental research of the efficiency of lithium-ion batteries, an important but often overlooked metric that can be used to assess charging and discharging energy losses. Two widespread lithium-ion technologies are compared: Lithium-Nickel-Manganese-Cobalt-Oxide and Lithium-Iron-Phosphate. The batteries are cycled using different charging/discharging rates using the constant-current-constant-voltage method, as well as the constant-power-constant-voltage method. The two methods are compared and the influence of a particular mode (constant current, constant power and constant voltage) on battery efficiency is analyzed. Determination of one-way voltaic and energy efficiencies is based on the batteries’ open-circuit voltage characteristics which are determined experimentally. An in-depth analysis of the voltaic efficiency and its dependence on the charging/discharging rate and the battery’s state-of-charge is given. An accurate information about the battery’s one-way efficiencies potentially increases accuracy of various battery models.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA