Rapid online solid-state battery diagnostics with optically pumped magnetometers

Solid state battery technology is motivated by the desire to deliver flexible power storage in a safe and efficient manner. The increasingly widespread use of batteries from mass-production facilities highlights the need for a rapid and sensitive diagnostic for identifying battery defects. We demons...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Hu, Yinan, Iwata, Geoffrey Z, Bougas, Lykourgos, Blanchard, John W, Wickenbrock, Arne, Jakob, Gerhard, Schwarz, Stephan, Schwarzinger, Clemens, Jerschow, Alexej, Budker, Dmitry
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 05.10.2020
Subjects
Diagnostic systems
Magnetic measurement
Magnetometers
Manufacturing defects
Solid state
Superconducting quantum interference devices
Online AccessGet full text

Cover

More Information
Summary:Solid state battery technology is motivated by the desire to deliver flexible power storage in a safe and efficient manner. The increasingly widespread use of batteries from mass-production facilities highlights the need for a rapid and sensitive diagnostic for identifying battery defects. We demonstrate the use of atomic magnetometry to measure the magnetic fields around miniature solid-state battery cells. These fields encode information about battery manufacturing defects, state of charge, impurities, or can provide important insights into ageing processes. Compared with SQUID-based magnetometry, the availability of atomic magnetometers, however, highlights the possibility for a low-cost, portable, and flexible implementation of battery quality-control and characterization technology.
ISSN:2331-8422