From their first commercial applications at the end of the 20th century lithium-ion batteries have become common in many electronic devices such as laptops and smartphones. Different battery cell types were developed such as LCO, LMO, NMC, NCA and Li-Po cells, that are suitable for specific applications, because of their different physical properties. In parallel to the development of lithium-ion batteries a need for better charging algorithms emerged, that among other things enable faster charging and reduce battery degradation over the operation period of the battery. Amongst alternative charging algorithms for lithium-ion batteries the family of pulse charging algorithms received some attention in the literature and could save some of the needs of battery charging. The branch of industry, that especially invests in new techniques of charging and the development of lithium-ion batteries, is electric vehicle industry. The main concerns of consumers are vehicle range, that is linked to the battery type and software, and charging speed, that is linked to the charging algorithm and battery management system. This Bachelors Thesis discusses pulse charging as an alternative to the standard CC-CV charging algorithm of lithium-ion batteries for a LFP cell. This cell type is becoming more common in electric vehicle battery systems, so in this work an example of a commercially accessible higher capacity battery cell was chosen. The main part of the Thesis discusses the problematics of determining the optimal parameters for pulse charging based on an experiment and a simulation. The techniques, most mentioned in the literature, are presented, as well as pros and cons of both ways of determining the optimal parameters. Afterwards, the best algorithms for pulse charging and their parameters are determined based on previous research. The occasional use of APC, CC-CVNP or ASRC algorithm with frequency below 1 Hz is best for lessening battery degradation.
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