Randomized Battery Usage 7: Low-Temperature Left-Skewed Random Walk
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 RW13, RW14, RW15 and RW16) 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 lower currents.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"026:00"
]
|
| contactPoint |
{
"fn": "Christopher Teubert",
"@type": "vcard:Contact",
"hasEmail": "mailto:Christopher.A.Teubert@nasa.gov"
}
|
| 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 RW13, RW14, RW15 and RW16) 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 lower currents. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "RW_Skewed_Low_Room_Temp_DataSet_2Post.zip",
"format": "ZIP",
"mediaType": "application/zip",
"downloadURL": "https://data.nasa.gov/docs/legacy/ames/7.RW_Skewed_Low_Room_Temp_DataSet_2Post.zip"
}
]
|
| identifier | https://data.nasa.gov/api/views/sb48-rsbc |
| issued | 2022-10-20 |
| keyword |
[
"batteries",
"degradation",
"phm",
"prognostics"
]
|
| landingPage | https://data.nasa.gov/dataset/randomized-battery-usage-7-low-temperature-left-skewed-random-walk |
| license | https://www.usa.gov/government-works |
| modified | 2025-12-09 |
| programCode |
[
"026:021"
]
|
| publisher |
{
"name": "PCoE",
"@type": "org:Organization"
}
|
| theme |
[
"Raw Data"
]
|
| title | Randomized Battery Usage 7: Low-Temperature Left-Skewed Random Walk |
