18650 Cell Characterization Dataset: Electrical Parameters and Visual Inspection from CERBEA Project

This dataset contains basic electrical parameters and visual documentation of 360 recycled 18650 lithium-ion cells, collected as part of the CERBEA project (TED2021-131981A-I00). The database includes measurements from various manufacturers and models of 18650 format cells, comprising:

• Unique identification numbers for each cell
• Manufacturer and model information
• Electrical parameters:
  • Original rated capacity (mAh)
  • Measured actual capacity (mAh)
  • Voltage (V)
  • Internal resistance (mΩ)
  • Remaining capacity percentage (%)

All measurements were performed using standardized testing procedures with calibrated equipment. Each cell record includes a visual documentation entry to support the assessment of physical condition.

This dataset is particularly relevant for:

• Battery state of health analysis
• Second-life applications research
• Machine learning model development for battery classification
• Circular economy studies in energy storage

The data was collected between 2023-2024 as part of CERBEA's research on battery recycling and reuse. Data format: CSV file with 8 columns and 360 rows, complemented with standardized cell photographs.

Funding: This work is part of the CERBEA project "Intelligent recycling of lithium batteries for the manufacture of domestic energy accumulators based on circular economy". Grant TED2021-131981A-I00 funded by MCIN/AEI/10.13039/501100011033 and by the "European Union NextGenerationEU/PRTR"."