Randomized Battery Usage 4: Li-ion Battery Degradation Data at 40C

Four 18650 Li-ion batteries were continuously cycled using a right-skewed random walk discharge profile between 0.5A and 5A at 40C ambient temperature. The dataset, part of a series from the National Aeronautics and Space Administration, includes reference charging and discharging cycles to benchmark state of health. It was last updated on March 13, III.

Use Cases

• Modeling battery state of health degradation based on randomized usage patterns.
• Training machine learning models for prognostics using the reference benchmark cycles.
• Analyzing the impact of a right-skewed, high-current load distribution on battery lifespan.
• Studying the effects of elevated ambient temperature (40C) on Li-ion battery performance under variable loads.

Strengths

• Data is part of a controlled experimental series with four specific battery cells (RW25, RW26, RW27, RW28).
• Includes reference charging and discharging cycles to provide benchmarks for state of health.
• Experimental conditions are precisely specified: 40C ambient temperature and a custom right-skewed probability distribution for load selection.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Experimental data from continuously cycling four 18650 Li-ion batteries with randomized current profiles.

Time Range

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Freshness

Last updated 2026-03-13 20:16:18.394715; freshness should be verified.

Geography

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