| 查看: 2153 | 回复: 2 | ||
datou_nono银虫 (小有名气)
|
[求助]
NASA battery capacity data set 分析
|
|
有没有使用过NASA battery capacity data set的啊，如下给出Li-ion batteries (# 5, 6, 7 and 18)的数据及测试条件。对于这样的mat文件，怎么得到横轴为充放电次数，纵轴为电池容量的数据呢？ 谢谢大家的帮助啊！ Data Description: A set of four Li-ion batteries (# 5, 6, 7 and 18) were run through 3 different operational profiles (charge, discharge and impedance) at room temperature. 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 at a constant current (CC) level of 2A until the battery voltage fell to 2.7V, 2.5V, 2.2V and 2.5V for batteries 5 6 7 and 18 respectively. Impedance measurement was carried out through an electrochemical impedance spectroscopy (EIS) frequency sweep from 0.1Hz to 5kHz. Repeated charge and discharge cycles result in accelerated aging of the batteries while impedance measurements provide insight into the internal battery parameters that change as aging progresses. The experiments were stopped when the batteries reached end-of-life (EOL) criteria, which was a 30% fade in rated capacity (from 2Ahr to 1.4Ahr). This dataset can be used for the prediction of both remaining charge (for a given discharge cycle) and remaining useful life (RUL). Files: B0005.mat Data for Battery #5 B0006.mat Data for Battery #6 B0007.mat Data for Battery #7 B0018.mat Data for Battery #18 Data Structure: cycle: top level structure array containing the charge, discharge and impedance operations type: operation type, can be charge, discharge or impedance ambient_temperature: ambient temperature (degree C) time: the date and time of the start of the cycle, in MATLAB date vector format data: data structure containing the measurements for charge the fields are: Voltage_measured: Battery terminal voltage (Volts) Current_measured: Battery output current (Amps) Temperature_measured: Battery temperature (degree C) Current_charge: Current measured at charger (Amps) Voltage_charge: Voltage measured at charger (Volts) Time: Time vector for the cycle (secs) for discharge the fields are: Voltage_measured: Battery terminal voltage (Volts) Current_measured: Battery output current (Amps) Temperature_measured: Battery temperature (degree C) Current_charge: Current measured at load (Amps) Voltage_charge: Voltage measured at load (Volts) Time: Time vector for the cycle (secs) Capacity: Battery capacity (Ahr) for discharge till 2.7V for impedance the fields are: Sense_current: Current in sense branch (Amps) Battery_current: Current in battery branch (Amps) Current_ratio: Ratio of the above currents Battery_impedance: Battery impedance (Ohms) computed from raw data Rectified_impedance: Calibrated and smoothed battery impedance (Ohms) Re: Estimated electrolyte resistance (Ohms) Rct: Estimated charge transfer resistance (Ohms) |
回复此楼» 猜你喜欢
核磁分析软件MestReNova打开文件时报错
已经有0人回复
-
在职博后不能申请博后基金了，那么在职博后意义何在？
已经有2人回复
-
分析化学论文润色/翻译怎么收费?
已经有214人回复
-
青岛大学化学化工学院分子测量学研究院2026年招收博士研究生
已经有0人回复
-
香港科技大学（广州）诚招电催化方向博士生（2026秋入学）
已经有0人回复
-
求助Cu2+1O的CIF文件(PDF: 05-0667)
已经有1人回复
-
KAUST（阿卜杜拉国王科技大学）MXene 器件方向博士后招聘
已经有0人回复
-
沙特阿拉伯阿卜杜拉国王科技大学（KAUST）电池方向博士后招聘
已经有0人回复
-
福州大学新能源材料与工程研究院招收2026年入学博士
已经有0人回复
» 本主题相关价值贴推荐，对您同样有帮助:
2楼2019-02-27 16:19:04
皮肤嘿嘿
金虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 1187.6
- 散金: 276
- 帖子: 206
- 在线: 87.5小时
- 虫号: 2414304
- 注册: 2013-04-12
- 性别: GG
- 专业: 机械测试理论与技术
|
%使用MATLAB导入电池数据，在cycle中筛选要计算的目标，容量在discharge中提取，那么放电一次就充放电一次，提取多少Capacit%y就循环多少次，也可以对应时间轴，不过时间轴作用不大，因为长时间的涓流充电意义不大。给你部分MATLAB代码吧： clear clc load B0005 load B0006 load B0007 load B0018 j=1; type_name='discharge'; for i=1:length(B0005.cycle) % 5、6、7号电池数据长度相同 cycle_05=B0005.cycle(i); cycle_06=B0006.cycle(i); cycle_07=B0007.cycle(i); if strcmp(cycle_05.type,type_name)==0 continue else cap_05(j,  =cycle_05.data.Capacity;end |
3楼2021-02-19 22:46:40