Nowadays, lithium ion batteries are increasingly spreading in different areas and therefore, it is very important to understand their aging behavior. According to the technical literature, battery aging can be dissociated in calendar aging and cycle aging. Calendar aging, in particular, depends on the temperature and state of charge (SoC). In addition to the previous factors, cycle aging also depends on the current rate, and charge/discharge cut-off voltages. In the literature, only a few papers have considered battery aging as a function of the charge/discharge current rate, but they agree that a higher current rate leads to faster battery aging. In any case, all of the tests have been conducted in a climactic chamber with a constant room temperature. However, even if the room temperature is controlled, for high current rates, the temperature of the battery cell increases, which makes it impossible to distinguish the aging due to the current from that due to the temperature. For this reason, in the present work, the authors focused on the lithium ion battery aging due to the current rate while maintaining a constant battery temperature using opportunely controlled Peltier cells. In this way, an interesting results was obtained, i.e. the cycle aging is not dependent on the current rate.

如今，锂离子电池越来越多地分布在不同的领域，因此，了解其老化行为非常重要。根据技术文献，电池老化可以在日历老化和循环老化中分离。日历老化尤其取决于温度和充电状态（SoC）。除上述因素外，循环老化还取决于电流速率和充电/放电截止电压。在文献中，只有少数几篇论文认为电池老化是充电/放电电流速率的函数，但是他们同意较高的电流速率会导致更快的电池老化。无论如何，所有测试都是在室温恒定的高潮室内进行的。但是，即使控制了室温，对于高电流率，电池单元的温度升高，这使得无法区分由于电流引起的老化与由于温度引起的老化。因此，在目前的工作中，作者研究了由于电流速率导致的锂离子电池老化，同时使用适当控制的Peltier电池保持恒定的电池温度。以这种方式，获得了有趣的结果，即循环老化不取决于当前速率。e。周期老化与当前速率无关。e。周期老化与当前速率无关。