Randomized Battery Usage 5: High Temperature Right-Skewed Random Walk
Description
This dataset is part of a series of datasets, where batteries are continuously cycled with randomly generated current profiles. Reference charging and discharging cycles are also performed after a fixed interval of randomized usage to provide reference benchmarks for battery state of health.
In this dataset, four 18650 Li-ion batteries (Identified as RW17, RW18, RW19 and RW20) were continuously operated by repeatedly charging them to 4.2V and then discharging them to 3.2V using a randomized sequence of discharging currents between 0.5A and 5A. This type of discharging profile is referred to here as random walk (RW) discharging. A customized probability distribution is used in this experiment to select a new load setpoint every 1 minute during RW discharging operation. The custom probability distribution was designed to be skewed towards selecting higher currents.
Resources
| Name |
Format |
Description |
Link |
|
57 |
|
https://data.nasa.gov/download/tcjd-g74p/application/zip |
|
57 |
5.RW_Skewed_High_Room_Temp_DataSet_2Post.zip |
https://data.nasa.gov/docs/legacy/ames/5.RW_Skewed_High_Room_Temp_DataSet_2Post.zip |
Tags
- prognostics
- degradation
- batteries
- phm