Patent · US Active

Method for parameter estimation in an impedance model of a lithium ion cell

US12055593B2 · kind B2 · utility

0Cited by

0References

9Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Stefan ROEMERSPERGER · Munich, DE
Jan Philipp SCHMIDT · Munich, DE
Tobias Thiem · Munich, DE
Christopher Wagner · Munich, DE

Key dates

Filing date	Sep 24, 2020
Grant date	Aug 6, 2024
Priority date	—
Expiry date	Sep 24, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for determining the parameters of an equivalent circuit for representation of the impedance of a lithium ion cell is provided. The equivalent circuit includes at least one RC element having an ohmic resistor R1, a capacitor C1, and a series resistor Rs. The series resistor Rs is determined by an impedance measurement.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.