Non-destructive visualization of short circuits in lithium-ion batteries by magnetic field imaging system
| Autor: | Kai Yabumoto, Seiju Matsuda, Noriaki Kimura, Kenjiro Kimura, Shogo Suzuki, Yuki Mima, Hideaki Okada |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Magnetic measurement
Materials science Physics and Astronomy (miscellaneous) Inverse analysis General Physics and Astronomy chemistry.chemical_element FOS: Physical sciences Applied Physics (physics.app-ph) Lithium-ion battery Ion Magnetic field imaging Non destructive Physics - Chemical Physics Chemical Physics (physics.chem-ph) business.industry Current density distribution General Engineering Physics - Applied Physics Visualization chemistry Optoelectronics Lithium Reconstruction business Short circuit |
| Popis: | To develop a high-density and long-life lithium-ion battery, a technology is needed that allows non-destructive visualization of the spatial distribution of deteriorated parts after cycle test. In the present study, we measured the distribution of the magnetic field leaking from the lithium-ion battery during its operation. Based on the measurement results, we evaluated the current density distribution inside a battery using the electric current reconstruction process. With respect to the changes in an internal state of the lithium-ion battery associated with cycle deterioration, we successfully visualized the spatial changes in the conductivity distribution inside the lithium-ion battery. 11 pages, 5 figures, letter |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|