Compatible battery cycler files

DATTES is able to analyse result files from the following battery cyclers :

  • Arbin (.csv, .res, .xls)
  • Biologic (.mpt)
  • Bitrode (.csv)
  • Digatron (.csv)
  • Landt (.xls)
  • Neware (.csv)

If your cycler is not in this list, we would be pleased to add it.

Please send a request to dattes@univ-eiffel.fr or create an issue here

Introduction

The first step of DATTES consist in calling the function dattes_import to convert the raw data from the cycler into a standard file format. The chosen file format is XML following the VEHLIB XML structure.

Note : Why a .xml format ? DATTES processes data analysis over .xml files for two reasons.
First, Extend Markup Language (xml) is a standard file format that is both human-readable and machine-readable.
Second, DATTES have been designed to provide experimental results inputs to the electric vehicle simulation tool VEHLIB. This software uses .xml files.

Syntax

The general syntax of dattes_import is:

  • dattes_import(srcdir,cycler,options,dstdir, file_ext)

with:

  • srcdir [char]: source folder to search cycler files [cell]: file list of cycler files
  • cycler [char]: cycler name
    • ‘arbin_csv’: search for arbin csv files
    • ‘arbin_res’: search for arbin res files
    • ‘arbin_xls’: search for arbin xls files
    • ‘biologic’: search for biologic mpt files
    • ‘bitrode’: search for bitrode csv files
    • ‘digatron’: search for digatron csv files
    • ‘landt’: search for neware xls files
    • ‘neware’: search for neware csv files
  • options [char]:
    • ‘v’: verbose, tell what you do
    • ‘f’: force, export files even if xml files already exist
    • ‘m’: merge, merge files in each folder into one single xml (only arbin_csv and biologic) (defaults: no verbose, no force)
  • dstdir [char]: destination folder for xml files, if not given xml are written in srcdir
  • file_ext [char]: search for alternative extension

Examples:

Simplest example

Import files in srcdir and put XML files in the same folder:

  • Arbin csv: dattes_import(srcdir,'arbin_csv')
  • Arbin res: dattes_import(srcdir,'arbin_res')
  • Arbin xls: dattes_import(srcdir,'arbin_xls')
  • Biologic: dattes_import(srcdir,'biologic')
  • Bitrode: dattes_import(srcdir,'bitrode')
  • Digatron: dattes_import(srcdir,'digatron')
  • Landt xls: dattes_import(srcdir,'landt_xls')
  • Neware: dattes_import(srcdir,'neware')

Note (1): for Arbin res files, mdbtools must be installed in your computer.

See https://github.com/mdbtools/mdbtools .

Note (2): for Arbin or Landt xls files, you need python and pet4dattes.

See Managing Excel files

Execution options: verbose, merge, force

  1. Verbose option, some information is returned to the standard output:
    • Arbin csv: dattes_import(srcdir,'arbin_csv','v')
    • Arbin res: dattes_import(srcdir,'arbin_res','v')
    • Arbin xls: dattes_import(srcdir,'arbin_xls','v')
    • Biologic: dattes_import(srcdir,'biologic','v')
    • Bitrode: dattes_import(srcdir,'bitrode','v')
    • Digatron: dattes_import(srcdir,'digatron','v')
    • Neware: dattes_import(srcdir,'neware','v')
  2. Merge option, merge several files into one single XML (available only for ‘arbin_csv’ and ‘biologic’):
    • Arbin csv: dattes_import(srcdir,'arbin_csv','m')
    • Biologic: dattes_import(srcdir,'biologic','m')
  3. Force option, if XML file already exists dattes_import ignores it except force option is turned on:
    • Arbin csv: dattes_import(srcdir,'arbin_csv','f')
    • Arbin res: dattes_import(srcdir,'arbin_res','f')
    • Arbin xls: dattes_import(srcdir,'arbin_xls','f')
    • Biologic: dattes_import(srcdir,'biologic','f')
    • Bitrode: dattes_import(srcdir,'bitrode','f')
    • Digatron: dattes_import(srcdir,'digatron','f')
    • Neware: dattes_import(srcdir,'neware','f')

Note: options ‘v’, ‘m’ and ‘f’ may be combined, e.g.: dattes_import(srcdir,'biologic','vmf')

Write XML files in alternate folder

Import files in srcdir and put XML files in the other folder different than srcdir (dstdir):

  • Arbin csv: dattes_import(srcdir,'arbin_csv',options,dstdir)
  • Arbin res: dattes_import(srcdir,'arbin_res',options,dstdir)
  • Arbin xls: dattes_import(srcdir,'arbin_xls',options,dstdir)
  • Biologic: dattes_import(srcdir,'biologic',options,dstdir)
  • Bitrode: dattes_import(srcdir,'bitrode',options,dstdir)
  • Digatron: dattes_import(srcdir,'digatron',options,dstdir)
  • Neware: dattes_import(srcdir,'neware',options,dstdir)

Import a list of files:

If you have a list of files (cell of pathnames), you can use it instead searching for file in srcdir, e.g.:

  • csv_list = {'folder1/test_capacity.csv','folder2/test_impedance.csv'};
  • dattes_import(csv_list,cycler,options,dstdir);

Note: options and dstdir are optional

Working with alternate file extensions:

Sometimes, input files have differetn extensions. For example biologic files sometimes are .txt instead .mpt:

  • dattes_import(srcdir,'biologic',options,dstdir,'.txt')

Note: options and dstdir are optional, if you want the defults, simply set them to empty chars: dattes_import(srcdir,'biologic','','','.txt')

Getting the list of XML files:

dattes_import returns three file lists (cells of pathnames):

  • [xml_files, failed_filelist,ignored_list] = dattes_import(...);
    • xml_files: succesfuly imported XML files
    • failed_filelist: input files that did not work
    • ignored_list: ignored input files (corresponding XML files already exist)