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求大牛开导,为什么NASA的电池循环容量数据有跃升现象 已有3人参与
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ywuweizi
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2楼2017-01-18 10:08:51
3楼2017-01-18 10:10:49
ywuweizi
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4楼2017-01-18 10:24:41
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随手搜了几个用这个数据集的几个论文: Li F, Xu J. A new prognostics method for state of health estimation of lithium-ion batteries based on a mixture of Gaussian process models and particle filter[J]. Microelectronics Reliability, 2015, 55(7):1035-1045. Mo B, Yu J, Tang D, et al. A remaining useful life prediction approach for lithium-ion batteries using Kalman filter and an improved particle filter[C]// IEEE International Conference on Prognostics and Health Management. 2016:1-5. 好像大家都是直接把数据拿来用的,而我比较疑惑的是这样的现象出现的原因,不知道谁能解释一下。。。 |
5楼2017-01-18 10:36:23
cxhou
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6楼2017-01-18 15:27:55
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Data Description: A set of four Li-ion batteries (# 25, 26, 27 and 28) were run through 3 different operational profiles (charge, discharge and impedance) at room temperature (24 deg C). Charging was carried out in a constant current (CC) mode at 1.5A until the battery voltage reached 4.2V and then continued in a constant voltage (CV) mode until the charge current dropped to 20mA. Discharge was carried out using a 0.05Hz square wave loading profile of 4A amplitude and 50% duty cycle until the battery voltage fell to 2.0V, 2.2V, 2.5V and 2.7V for batteries 25, 26, 27 and 28 respectively. Impedance measurement was carried out through an electrochemical impedance spectroscopy (EIS) frequency sweep from 0.1Hz to 5kHz. 这是数据的描述 |
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