Device and setup for quick diagnostic of automotive batteries

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00387066" target="_blank" >RIV/68407700:21230/25:00387066 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21260/25:00387066

Výsledek na webu

<a href="https://technology.fel.cvut.cz/vyzkum/tn02000054_3-v11/" target="_blank" >https://technology.fel.cvut.cz/vyzkum/tn02000054_3-v11/</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Device and setup for quick diagnostic of automotive batteries

Popis výsledku v původním jazyce

The result is a functional measurement setup for quick diagnostic of automotive battery cells based on electrochemical impedance spectroscopy (EIS). The setup consists of a novel impedance measurement device, auxiliary hardware, and control and evaluation software. The core of the solution is a patented measuring block using passive matching transformers and dual measurement branches, which enables accurate sensing of very small impedances in the milliohm range with a high signal-to-noise ratio and short measurement times. The device is controlled via a PC application developed in MATLAB, which manages measurement configuration, automated acquisition of EIS spectra, and subsequent processing, including fitting the measured data to an equivalent electrical circuit model of the lithium-ion cell. The setup has been experimentally verified on precision reference components and LiFeYPO₄ cells, demonstrating measurement repeatability comparable with commercial EIS instruments. The result is intended for rapid battery evaluation, production quality control, and sorting of cells for second-life applications in the automotive and energy sectors.

Název v anglickém jazyce

Device and setup for quick diagnostic of automotive batteries

Popis výsledku anglicky

The result is a functional measurement setup for quick diagnostic of automotive battery cells based on electrochemical impedance spectroscopy (EIS). The setup consists of a novel impedance measurement device, auxiliary hardware, and control and evaluation software. The core of the solution is a patented measuring block using passive matching transformers and dual measurement branches, which enables accurate sensing of very small impedances in the milliohm range with a high signal-to-noise ratio and short measurement times. The device is controlled via a PC application developed in MATLAB, which manages measurement configuration, automated acquisition of EIS spectra, and subsequent processing, including fitting the measured data to an equivalent electrical circuit model of the lithium-ion cell. The setup has been experimentally verified on precision reference components and LiFeYPO₄ cells, demonstrating measurement repeatability comparable with commercial EIS instruments. The result is intended for rapid battery evaluation, production quality control, and sorting of cells for second-life applications in the automotive and energy sectors.

Druh

G_funk - Funkční vzorek

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/TN02000054" target="_blank" >TN02000054: Národní centrum kompetence inženýrství pozemních vozidel Josefa Božka</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Interní identifikační kód produktu

TN02000054/3-V11

Číselná identifikace

TN02000054/3-V11

Technické parametry

- Main components: Generator of the signal, D/A converter, A/D converter (NI USB-6211), analogue power supply for low noise, power amplifier (TDA7294), passive transformers - Measured quantities: Voltage, Impedance - Data processing: Routines in MATLAB/LabVIEW - Operation parameter limits: frequency range 10-2-104 Hz - Accuracy: signal-to-noise-ratio 80-100 dB - Voltage range: 0.1-6 V - Current range: 0.02-1.2 A

Ekonomické parametry

- Development cost (i.e., components and parts used during the development): 150 000 CZK - Estimated related research personnel hours: 2 300 h - Estimated cost benefit for battery manufacturers and battery second-life repurposers: on the order of tens of thousands of CZK up to tens of millions of CZK.

Kategorie aplik. výsledku dle nákladů

—

IČO vlastníka výsledku

68407700

Název vlastníka

České vysoké učení technické v Praze

Stát vlastníka

CZ - Česká republika

Druh možnosti využití

V - Výsledek je využíván vlastníkem

Požadavek na licenční poplatek

Z - Poskytovatel licence na výsledek nepožaduje v některých případech licenční poplatek

Adresa www stránky s výsledkem

https://technology.fel.cvut.cz/vyzkum/tn02000054_3-v11/