This page presents a specific documentation for Batteries data for the sites of Aubervilliers and NOH. 

Summary

Data Sources

ELN

Link to the data source details:

Instruments

The instrument files are, most of them, manually added to a Google Driver's folder or a folder in lab servers. 

The spreadsheet Where to find instrument files? has the full list of instrument folders and location:

Data Mapping

Data mapping is divided in three steps:

Data Preparation or Parsing

The spreadsheet below presents all data transformation between the raw files (extracted files) and a BigQuery delta table. Some files are unstructured and semi-structured. This steps aims to structure the files in the target table format and checking if the column's type (schema) are conformed expected.

Data Integration or Computing

The spreadsheet below presents all data transformations between the tables on Staging and ODS. This steps aims to add some calculations and intelligence to the data. Not all tables will need passing through this step.

Data Presentation or DW/DM


Data Model

The data model presents the tables/views presented on DW/DM dataset and the relation between them.  


Specific Naming Conventions

Folders and Table Names

Most files are organized based on its "Workflow name", "Method name". For exemple:

Workflow nameMethod nameInstrument name
ConductivityConductivityBiologic SP-150
Electrochemical testsConductivityBiologic VMP 300
Raw materialsLithium Metal CompatibilityBiologic VMP 300
Raw materialsTortuosity factorBiologic VMP 300
MechanosynthesisCalcination / DryingRotative Oven
Dry ProcessCoatingCoating line
Wet processMechanical testMark-10 90° Peel Test Fixture Model G1109

All instruments folders structure and tables name use the same logic depending on the file or table format. For exemple:

Folders

  

Tables (Staging)

Abbreviations

Abbreviations specifically for Battery, they are used in the Talend jobs or tables names:

NameAbbreviationNote

Instrument

Instr

Raw Materials

RawMat

Conductivity

Conduct

Mechanosynthesis

Mechano

Critical Current Density

Crit_Curr_Density

Lithium Metal Compatibility

Lith_Met_Comp

Tortuosity factor

Tortuosity

Dry Process

Dry

Wet process

Wet