Battery Degradation Dataset (Fixed Current Profiles＆Arbitrary Uses Profiles)

77 nominally identical high-energy 18650 lithium-ion batteries are cycled with fixed or arbitrary uses current profiles. 22 batteries are cycled with fixed current profiles of charge current (1C, 2C, or 3C) and discharge current (1C, 2C, or 3C). 55 batteries are cycled with arbitrary uses profiles of charge current (obeys a uniform distribution among 1C, 2C, or 3C, and changes randomly every 5 cycles) and a specified discharge current (3C).

77枚标称参数一致的高能量密度18650型锂离子电池（18650 lithium-ion batteries）采用固定或任意设定的电流工况开展循环充放电测试。其中22枚电池采用固定电流工况循环，充电电流（1C、2C或3C）与放电电流（1C、2C或3C）均为定值；剩余55枚电池的充电电流采用任意工况，即充电电流在1C、2C、3C之间服从均匀分布，且每5个循环随机切换一次，放电电流固定为3C。