SE546571C2 - Method and arrangement for measuring components in electrolyte in secondary cells during production - Google Patents

Method and arrangement for measuring components in electrolyte in secondary cells during production

Info

Publication number
SE546571C2
SE546571C2 SE2330577A SE2330577A SE546571C2 SE 546571 C2 SE546571 C2 SE 546571C2 SE 2330577 A SE2330577 A SE 2330577A SE 2330577 A SE2330577 A SE 2330577A SE 546571 C2 SE546571 C2 SE 546571C2
Authority
SE
Sweden
Prior art keywords
electrolyte
pipe
optical cavity
secondary cells
measuring
Prior art date
Application number
SE2330577A
Other versions
SE2330577A1 (en
Inventor
Andrew Pohlman
Original Assignee
Northvolt Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northvolt Ab filed Critical Northvolt Ab
Priority to SE2330577A priority Critical patent/SE2330577A1/en
Publication of SE546571C2 publication Critical patent/SE546571C2/en
Publication of SE2330577A1 publication Critical patent/SE2330577A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3554—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G01J2003/423—Spectral arrangements using lasers, e.g. tunable

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Inorganic Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The present disclosure generally pertains to production of rechargeable battery cells, commonly called secondary cells (1). More specifically, the disclosure relates to measuring of components, such as impurities, in electrolyte in secondary cells (1) during production. According to a first aspect the disclosure relates to a method for measuring concentration of a component in electrolyte of a secondary cell (1). The method comprises filling (S1) electrolyte in a secondary cell via a pipe (3) and emitting (S2), while filling the secondary cell with the electrolyte, a light beam including a selected wavelength corresponding to an absorption frequency of the component, into a ring down optical cavity (41) formed to enclose a part of the pipe (3). At least parts of a wall of the pipe (3) are transmissive to the at least one selected wavelength inside the optical cavity (41), whereby the light beam, and reflections thereof caused by the ring down optical cavity (41), are absorbed by electrolyte flowing in the pipe (3). The method further comprises measuring (S3) light in the ring down optical cavity (41) having the at least one selected wavelength, whereby a concentration of the component in the electrolyte can be determined.
SE2330577A 2023-12-19 2023-12-19 Method and arrangement for measuring components in electrolyte in secondary cells during production SE2330577A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE2330577A SE2330577A1 (en) 2023-12-19 2023-12-19 Method and arrangement for measuring components in electrolyte in secondary cells during production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2330577A SE2330577A1 (en) 2023-12-19 2023-12-19 Method and arrangement for measuring components in electrolyte in secondary cells during production

Publications (2)

Publication Number Publication Date
SE546571C2 true SE546571C2 (en) 2024-12-03
SE2330577A1 SE2330577A1 (en) 2024-12-03

Family

ID=93651582

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2330577A SE2330577A1 (en) 2023-12-19 2023-12-19 Method and arrangement for measuring components in electrolyte in secondary cells during production

Country Status (1)

Country Link
SE (1) SE2330577A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61240581A (en) * 1985-04-17 1986-10-25 Sumitomo Electric Ind Ltd Electrode active material concentration measuring device for secondary batteries
US20050040337A1 (en) * 2001-09-12 2005-02-24 Cox James A. Tunable laser fluid sensor
US20070216903A1 (en) * 2006-03-17 2007-09-20 Cole Barrett E Cavity ring-down spectrometer for semiconductor processing
EP2365305A1 (en) * 2010-02-16 2011-09-14 Honeywell International Inc. Cavity ring-down spectroscopy device with internal cavity intensity detector
KR20130076699A (en) * 2011-12-28 2013-07-08 솔브레인 주식회사 Method of measuring moisture content in lithium secondary battery electrolyte and analytical reagent composition used in the same
JP2015197961A (en) * 2014-03-31 2015-11-09 株式会社日産アーク Manufacturing system and manufacturing method of lithium ion secondary battery, and quality management system and quality management method of electrolyte of lithium ion secondary battery in manufacturing method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61240581A (en) * 1985-04-17 1986-10-25 Sumitomo Electric Ind Ltd Electrode active material concentration measuring device for secondary batteries
US20050040337A1 (en) * 2001-09-12 2005-02-24 Cox James A. Tunable laser fluid sensor
US20070216903A1 (en) * 2006-03-17 2007-09-20 Cole Barrett E Cavity ring-down spectrometer for semiconductor processing
EP2365305A1 (en) * 2010-02-16 2011-09-14 Honeywell International Inc. Cavity ring-down spectroscopy device with internal cavity intensity detector
KR20130076699A (en) * 2011-12-28 2013-07-08 솔브레인 주식회사 Method of measuring moisture content in lithium secondary battery electrolyte and analytical reagent composition used in the same
JP2015197961A (en) * 2014-03-31 2015-11-09 株式会社日産アーク Manufacturing system and manufacturing method of lithium ion secondary battery, and quality management system and quality management method of electrolyte of lithium ion secondary battery in manufacturing method

Also Published As

Publication number Publication date
SE2330577A1 (en) 2024-12-03

Similar Documents

Publication Publication Date Title
Lu et al. Advanced strategies for solid electrolyte interface design with MOF materials
KR101367618B1 (en) Method for preparing electrolyte for vanadium redox flow battery using vanadium oxide
CN102426082B (en) Leak hunting method before a kind of lithium-ions battery fluid injection sealing
KR101495760B1 (en) Method for detecting degree of impregnation of electrolyte in electrochemical device
EP1509796A4 (en) Laser production and product qualification via accelerated life testing based on statistical modeling
SE546571C2 (en) Method and arrangement for measuring components in electrolyte in secondary cells during production
CN116516415A (en) Wide-range stable dynamic performance test system and operation method of alkaline electrolyzer
CN112635929A (en) Method for optimizing standing process after liquid injection of lithium ion battery
CN118032221A (en) Helium detector calibration standard part and calibration method thereof
US12249740B2 (en) Secondary battery manufacturing method comprising divisional injection of electrolyte
CN106018340B (en) In-situ laser gas analyzer with on-line deviation correcting device
CN104847673B (en) The state maintenance method of setting-out holding capacity under unit working conditions of phrase modulation
US7635543B2 (en) Lead-acid battery and manufacturing method thereof
CN112864483A (en) Secondary low-voltage matching mode of polymer lithium ion battery
ES8303825A1 (en) A STABILIZATION METHOD OF AN ELECTROCHEMICAL CELL
KR101609467B1 (en) Composition Analysis Method for Cathode Material of Li Ion Rechargeable Battery
Jeco et al. Spatial evaluation of luminescent coupling effect in a current-limiting subcell of in GaP/GaAs/Ge triplejunction solar cells
CN101885107A (en) A pole welding method for a nickel-hydrogen storage battery
CN224096807U (en) A connection structure between an aluminum casing and a top cover for a lithium battery
CN109411556B (en) Method for reducing packaging power loss of black silicon battery pack
CN111180816B (en) Method for determining electrolytic water weight loss and volatilization weight loss in lead-acid storage battery formation process
CN208366894U (en) A kind of oxygen bomb for sample calorimetry, calorimeter
CN114927763A (en) Ether ester mixed electrolyte, lithium battery and preparation method thereof
CN204922535U (en) Tent light
CN202799356U (en) Full-automatic light intensity stepless regulation system for high-power high pressure gas discharge lamp