Abstract
The following quote was obtained by the news editors from the background informa tion supplied by the inventors: “A method of fully charging or fully discharging a secondary battery to estimate an internal state of the secondary battery has been known conventionally. However, this method takes a long time because the se condary battery needs to be fully charged or discharged. Thus, there is a need t o estimate the internal state of the secondary battery in a shorter time.
NETL
NSTL