A battery control apparatus for a battery system includes: a first operation unit that computes a first state of charge of a battery according to a first technique on the basis of an electric current value, a voltage value, and an internal resistance value of the battery; a second operation unit that computes a second state of charge of the battery according to a second technique different from the first technique; and a correction unit that corrects the internal resistance value of the battery. if a difference equal to or more than a specified value is detected between the first state of charge and the second state of charge, the correction unit corrects the internal resistance value of the battery with a resistance correction amount according to the difference and the electric current value.

Provided is a control device for controlling a storage battery. The control device includes a communication unit and a control unit. The communication unit communicates with the storage battery in a wired or wireless manner. The control unit controls the communication unit to send a control signal, to the storage battery, that causes the storage battery to operate in a first mode or a second mode. The first mode is a mode in which the width of changes over time in power bought or sold by a power control system connected to the storage battery is controlled to stay within a prescribed range. The second mode is mode in which the width of changes over time in power charged to or discharged from the storage battery is controlled to stay within a prescribed range.

Provided is a system including: a management unit configured to manage a plurality of battery packs connected in parallel, in which the management unit is configured to control the plurality of battery packs to cause the plurality of battery packs to be discharged alternately so that a discharge rate of each of the plurality of battery packs becomes higher than the discharge rate in a case of discharging all of the plurality of battery packs. The plurality of battery packs include a plurality of left-hand side battery packs and a plurality of right-hand side battery packs, and the management unit is configured to manage the plurality of battery packs to cause at least one of the plurality of battery packs in each of the plurality of left-hand side battery packs and the plurality of right-hand side battery packs to be discharged at a time in order.

The present invention relates to a battery cell surface temperature estimation system and method capable of minimizing a temperature measurement delay through a software algorithm method that estimates the actual cell surface temperature by reflecting the gradient of the measured temperature change of the battery cell

The present invention relates to a battery cell surface temperature estimation system and method capable of minimizing a temperature measurement delay through a software algorithm method that estimates the actual cell surface temperature by reflecting the gradient of the measured temperature change of the battery cell

Provided is a battery pack including a pair of output terminals, a control unit, and a plurality of battery units, where each of the plurality of battery units includes a plurality of battery blocks connected in series, a positive electrode terminal, and a negative electrode terminal, the battery block includes one battery or a plurality of batteries connected in parallel, a fuse is connected between at least one output terminal of the pair of output terminals and a positive electrode terminal or a negative electrode terminal corresponding to the one output terminal, and the fuse is allowed to be fused by the control unit.

Provided is a battery pack including a pair of output terminals, a control unit, and a plurality of battery units, where each of the plurality of battery units includes a plurality of battery blocks connected in series, a positive electrode terminal, and a negative electrode terminal, the battery block includes one battery or a plurality of batteries connected in parallel, a fuse is connected between at least one output terminal of the pair of output terminals and a positive electrode terminal or a negative electrode terminal corresponding to the one output terminal, and the fuse is allowed to be fused by the control unit.

An example of a battery apparatus (10) is provided including: a housing (12) with a connection arrangement (24); a plurality of interoperable battery cartridges (36) removably fittable to the housing (12) to connect with the connection arrangement (24) to form a stack; at least one battery interface arrangement (17) adapted to be removably fitted to the housing (12) to connect with the connection arrangement (24) so as to be in communication with a selection of the plurality of interoperable battery cartridges (26) via the connection arrangement (24). Examples of battery cartridges (36), a system (5) including one or more battery apparatuses (10), and associated example methods are also disclosed.

An apparatus for measuring a pressure of battery cells includes: a battery cell; a pressure sensor configured to measure the surface pressure of the battery cell; and a first plate arranged between the battery cell and the pressure sensor so as to be in contact with the battery cell and the pressure sensor.

An apparatus for measuring a pressure of battery cells includes: a battery cell; a pressure sensor configured to measure the surface pressure of the battery cell; and a first plate arranged between the battery cell and the pressure sensor so as to be in contact with the battery cell and the pressure sensor.