Vorrichtung und Verfahren zur Batteriediagnose
Anmelder: LG Energy Solution, Ltd. 🇰🇷
Details
- Veröffentlichungs-Nr.
- EP4745597
- Anmeldetag
- 13. August 2024
- Veröffentlichung
- 6. März 2025
- Rechtsraum
- EP
Abstract
An apparatus for diagnosing a battery according to the present disclosure includes a profile obtaining unit configured to obtain a battery profile representing a correspondence relationship between voltage and capacity of a battery that is charged or discharged at a predetermined target C-rate; a profile correcting unit configured to generate a corrected profile by correcting the battery profile based on an overpotential profile representing overpotential of a criterion battery for each capacity that occurs when the criterion battery is charged or discharged at the target C-rate, and generate an adjusted positive electrode profile adjusted to represent a correspondence relationship between a positive electrode capacity and a positive electrode potential of the battery to be diagnosed and an adjusted negative electrode profile adjusted to represent a correspondence relationship between a negative electrode capacity and a negative electrode potential of the battery using the corrected profile; and a control unit configured to diagnose a state of the battery to be diagnosed based on an NP ratio extracted based on the adjusted positive electrode profile and the adjusted negative electrode profile.
Anmelder
- Firma
- LG Energy Solution, Ltd.
- Land
- 🇰🇷 Südkorea
Südkoreanisches Unternehmen der LG-Gruppe, das Lithium-Ionen-Batterien und Batteriesysteme entwickelt und herstellt, insbesondere für Elektrofahrzeuge, Energiespeicher sowie mobile und portable Elektronikgeräte.
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