Method of estimating state of charge of secondary cell, state-of-charge estimation device, cell pack, electronic apparatus, and electric vehicle

A method of estimating a state of charge of a secondary cell includes: calculating a value of (∂Eemf/∂T) in advance on the assumption that Eemf is an electromotive force of the secondary cell and T is a temperature of the secondary cell; and calculating the state of charge based on at least a value...

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Bibliographische Detailangaben
1. Verfasser:	Hotta Shin
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PERFORMING OPERATIONS PHYSICS TESTING TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A method of estimating a state of charge of a secondary cell includes: calculating a value of (∂Eemf/∂T) in advance on the assumption that Eemf is an electromotive force of the secondary cell and T is a temperature of the secondary cell; and calculating the state of charge based on at least a value of (∂Eemf/∂T) for which a value of the state of charge is set as a variable, a temperature measurement value of the secondary cell, and a current measurement value of the secondary cell.