24-10-2012, 02:46 PM
AC Impedance Testing on 40-Ah Li-Ion Cells
ABSTRACT
The objective of this report is to summarize the initial data from AC impedance testing on 40-Ah Li-Ion cells. This report
examines cells with the same manufacturer and differing locations. Cells from one location have measurements taken before
any testing or cycling of the cells was performed. Cells from the second location have measurements taken only after cycling.
The measurements were taken at SOC between 3.18 V and 3.59 V. All measurements were taken at room temperature. This
data will be useful as a baseline against which future measurements can be compared.
ABSTRACT
The objective of this report is to summarize the initial data from AC impedance testing on 40-Ah Li-Ion cells. This report
examines cells with the same manufacturer and differing locations. Cells from one location have measurements taken before
any testing or cycling of the cells was performed. Cells from the second location have measurements taken only after cycling.
The measurements were taken at SOC between 3.18 V and 3.59 V. All measurements were taken at room temperature. This
data will be useful as a baseline against which future measurements can be compared.