We selected the pulse mode resulting in the smallest internal resistance (2C -1C at 0.05Hz) and the 1C CC-CV charging mode for cycle life comparison. To ensure fairness, the average input current of both charging methods is 1C, and both include a CV stage.
The rest of the paper discusses the experiment design and experimental results, models and model results, and finally reveals the mechanism of the pulse charging mode in shortening charging time and extending the cycle life of batteries compared to the traditional CC-CV charging mode.
Specifically, the average internal resistance in the C-D mode is nearly 17.5 % lower than that of the CC-CV mode, demonstrating that the pulse charging has superior performance in enhancing battery cycle life and efficiency. 4.5. Battery cycle life testing results
The C-D pulse charging mode extends battery cycle life. Pulse charging helps reducing concentration polarization in batteries. This study aims to experimentally investigate the impact of different pulse charging patterns on the charging time and performance of lithium-ion batteries at room temperature.
From the model result, it shows the 2C -1C at 0.05Hz pulse charging pattern of C-D mode has the most uniform electrolyte salt concentration distribution, which is consistent with the experimental results that it has the smallest internal battery resistance.
The 10-megawatt battery storage system, combined with the gas turbine, allows the peaker plant to more quickly respond to changing energy needs, thus increasing the reliability of the electrical grid. Power-to-gas is the conversion of electricity to a gaseous fuel such as hydrogen or methane.