The invention relates to a method for determining a remaining useful lifetime of a propulsion battery (2) of a vehicle (1), the method comprising: constructing (S102) a voltage feature vector (204) from voltage data of a charging event for the battery (2),...

According to an embodiment, a battery life estimation method includes: calculating, for a secondary battery, battery characteristic data at a present time including at least an internal resistance value; storing use condition data including a temperature t...

A battery pack including a battery coupled to a load and a charging device, and comprising at least one battery cell, and a battery management unit for controlling charging of the battery from the charging device and discharging of the battery to the load,...

Disclosed is an isolation resistance measuring apparatus having a fault self-diagnosing function and a fault self-diagnosing method using the same. The isolation resistance measuring apparatus having a fault self-diagnosing function detects whether a fault...

A low voltage warning method for a vehicle secondary battery and a device for same are provided. The method includes a voltage detecting step of starting detecting the voltage of a secondary battery after a specific period of time, required for the voltage...

A diagnostic device diagnoses a rechargeable lithium ion battery that is configured of a plurality of battery blocks connected in series for a degraded state attributed to metallic lithium deposited therein. If a condition is established for starting a dia...

A vehicle power source device which can improve the accuracy of battery deterioration detection. The vehicle power source device (100) is provided with: generator (110) which is in-built in a vehicle; high-voltage first battery (120) which stores the elect...

A power supply unit comprises a solid electrolyte battery SB constituted by using a solid electrolyte alone and a liquid electrolyte battery LB constituted by using an electrolytic solution connected in parallel to each other. Since the solid electrolyte b...