Abstract: According to one embodiment, a secondary battery control apparatus includes a charger/discharger and a charge/discharge controller. The charger/discharger connects a plurality of secondary batteries, and charges one secondary battery by electric power discharged by another secondary battery. The charge/discharge controller controls the charger/discharger such that charging and discharging are performed between the plurality of secondary batteries by using the charger/discharger if battery temperature information detected by temperature detector is lower than a preset threshold temperature, wherein the charging is stopped and switched to discharging or pause if voltage information detected by the voltage detector reaches the upper limit voltage of the secondary battery, and the discharging is stopped and switched to charging or pause if the voltage information detected by the voltage detector reaches the lower limit voltage of the secondary battery.

Abstract: An assembled battery system is disclosed that includes a plurality of serially-connected battery cells; voltage detecting lines connectable at one ends to electrodes of the battery cells of the assembled battery; electric resistors serially-connected at one ends to the other ends of the voltage detecting lines; capacitors connected to the other ends of the electric resistors, each of the capacitors being configured to electrically interconnect one of the voltage detecting lines and the other voltage detecting line; voltage measuring circuits connected respectively to each of the voltage detecting lines; electrically openable short-circuiting switches arranged between the capacitors and the voltage measuring circuits and parallel-connected to the capacitors; and a monitoring circuit that detects a difference between a first measurement result and a second measurement result with respect to each of the short-circuiting switches and a failure of the voltage detecting lines, the short-circuiting switches or the v

Abstract: An apparatus is disclosed that includes a resistance measuring unit operable to determine a solution resistance Rsol and a charge transfer resistance Rct of a battery; and at least one computer-readable non-transitory storage medium comprising code, that, when executed by at least one processor, is operable to provide an estimate of the present value of the battery by: comparing Rsol and Rct to historical deterioration transition information; estimating the number of remaining charge cycles before a discharge capacity lower limit is reached by the battery using the comparison; and estimating the number of remaining charge cycles before a discharge time lower limit is reached by the battery using the comparison. The estimate of the present value of the battery includes the smaller of the number of remaining charge cycles before a discharge capacity lower limit is reached or the number of remaining charge cycles before a discharge time lower limit is reached.

Abstract: According to one of the embodiment, an assembled battery has a plurality of cells electrically connected in series. A charge amount difference detection circuit detects charge amount difference of the cells. Wherein, while a charging or discharge current is being applied to the cells, the charge amount difference detection circuit detects charge amount differences greater than a charge amount of a reference cell having a minimum charge amount, the charge amount differences of the cells are determined by addition of the charging or discharge currents during a period corresponding to the time differences between the reference cell and the other cells reaching a predetermined specific voltage, discharge switches are controlled by a switch controller, based on the charging amount differences.

Abstract: A battery system includes a battery unit in which battery arms are connected in parallel, and a charge/discharge control device that controls charge/discharge of the battery unit. Each of the battery arms includes: a battery composed of one or more battery cells connected in series; a switch connected in series to the battery; and a battery monitoring device that, in a case of having detected abnormality of the battery, opens the switch to thereby isolate the battery arm including the abnormal battery, and sends a switch opening signal indicating that the switch has been opened to the charge/discharge control device. The charge/discharge control device performs a control to reduce a charge/discharge current or charge/discharge power of the battery unit when the switch opening signal is sent from the battery monitoring device of the battery unit to the charge/discharge control device.

Abstract: According to one embodiment, the power supply management portion includes a timer configured to output an ON signal every time set by the control circuit, an OR circuit configured to receive supply of an output signal from the timer, an external signal supplied from outside, and a switch control signal output from the control circuit, and a switch circuit configured to switch output of the power source voltage from an external power source according to an output signal from the OR circuit, and the control circuit turns on a switch control signal after confirming which of the output signal from the timer or the external signal has turned on the switch circuit and turns off the switch control signal when both of the output signal from the timer and the signal supplied from outside are turned off.

Abstract: According to one embodiment, an energy storage apparatus includes a DC/DC convertor including a discharge terminal and a charge terminal, the DC/DC convertor which sets up a voltage of a DC power supplied from the discharge terminal and outputs the DC power from the charge terminal, switches which switch connections between a rechargeable batteries and a first connection terminal electrically connected to an external device, a second connection terminal electrically connected to the discharge terminal, and a third connection terminal electrically connected to the charge terminal, and a controller which controls the DC/DC convertor to perform charge and discharge between a rechargeable battery connected to the discharge terminal via the switches and a rechargeable battery connected to the charge terminal via the switches,

Abstract: A gas exhaust structure of a battery includes a rupture valve formed in a battery body, and a pipe unit composed by integrating a coupling pipe and an exhaust pipe with each other. A one-side opening of the coupling pipe is coupled to the rupture valve. The exhaust pipe is coupled to an other-side opening of the coupling pipe, guides gas that spouts out from an inside of the battery body through the rupture valve and the one-side opening of the coupling pipe, and exhausts the gas to an outside. The exhaust pipe is arranged to be offset with respect to the rupture valve without allowing an extended line that passes through a center of the rupture valve and a centerline of the exhaust pipe to be perpendicular to each other.

Abstract: An assembled battery system is disclosed that includes a plurality of serially-connected battery cells; voltage detecting lines connectable at one ends to electrodes of the battery cells of the assembled battery; electric resistors serially-connected at one ends to the other ends of the voltage detecting lines; capacitors connected to the other ends of the electric resistors, each of the capacitors being configured to electrically interconnect one of the voltage detecting lines and the other voltage detecting line; voltage measuring circuits connected respectively to each of the voltage detecting lines; electrically openable short-circuiting switches arranged between the capacitors and the voltage measuring circuits and parallel-connected to the capacitors; and a monitoring circuit that detects a difference between a first measurement result and a second measurement result with respect to each of the short-circuiting switches and a failure of the voltage detecting lines, the short-circuiting switches or the v

Abstract: An apparatus is disclosed that includes a resistance measuring unit operable to determine a solution resistance Rsol and a charge transfer resistance Rct of a battery; and at least one computer-readable non-transitory storage medium comprising code, that, when executed by at least one processor, is operable to provide an estimate of the present value of the battery by: comparing Rsol and Rct to historical deterioration transition information; estimating the number of remaining charge cycles before a discharge capacity lower limit is reached by the battery using the comparison; and estimating the number of remaining charge cycles before a discharge time lower limit is reached by the battery using the comparison. The estimate of the present value of the battery includes the smaller of the number of remaining charge cycles before a discharge capacity lower limit is reached or the number of remaining charge cycles before a discharge time lower limit is reached.

Abstract: According to one embodiment, the power supply management portion includes a timer configured to output an ON signal every time set by the control circuit, an OR circuit configured to receive supply of an output signal from the timer, an external signal supplied from outside, and a switch control signal output from the control circuit, and a switch circuit configured to switch output of the power source voltage from an external power source according to an output signal from the OR circuit, and the control circuit turns on a switch control signal after confirming which of the output signal from the timer or the external signal has turned on the switch circuit and turns off the switch control signal when both of the output signal from the timer and the signal supplied from outside are turned off.

Abstract: According to one of the embodiment, an assembled battery has a plurality of cells electrically connected in series. A charge amount difference detection circuit detects charge amount difference of the cells. Wherein, while a charging or discharge current is being applied to the cells, the charge amount difference detection circuit detects charge amount differences greater than a charge amount of a reference cell having a minimum charge amount, the charge amount differences of the cells are determined by addition of the charging or discharge currents during a period corresponding to the time differences between the reference cell and the other cells reaching a predetermined specific voltage, discharge switches are controlled by a switch controller, based on the charging amount differences.

Abstract: A battery pack is a battery pack chargeable a normal charge and a quick charge, and includes: a normal charging terminal 10 (11, 12) configured to apply a current of a first predetermined value to a battery cell; and a quick charging terminal 30 (31, 32) configured to apply to the battery cell a current of a second predetermined value exceeding the first predetermined value, the quick charging terminal having a different shape from a shape of the normal charging terminal.

Abstract: A current integrating circuit device, including a current sensor to detect a current flowing through a current path, a first-order lag filter to filter an output of the current sensor, an A/D converter to convert an analog signal filtered by the first-order lag filter into a digital signal, and a proportional integrator to proportionally integrate the digital signal outputted from the A/D converter.

Abstract: A secondary battery pack includes a plurality of cells each comprising a positive electrode terminal and a negative electrode terminal and arranged side by side, a battery management circuit board configured to monitor a voltage of the cells, and a plurality of bus-bars electrically connecting the electrode terminals of the adjacent cells. Each of the bus-bars includes first connecting portions connected to the electrode terminals and a second connecting portion connected directly to the battery management circuit board.

Abstract: A battery device includes electric cells connected in series, resistors connected to respective electrodes of the electric cells, discharge switches for discharging voltages between the respective electrodes of each of the battery cells via the resistors, and a voltage detection and control circuit. When a detection voltage when the discharge switch is closed and not disconnected is defined as V, a detection voltage when a discharge switch is closed and disconnected is defined as VS, and a detection voltage when a discharge switch is not closed and not disconnected is defined as VE, the voltage detection and control circuit arranges a relationship between a disconnect determination voltage VSL and a discharge malfunction determination voltage VSH so as to be VE>VSH>V>VSL>V.

Abstract: A battery system includes a battery unit in which battery arms are connected in parallel, and a charge/discharge control device that controls charge/discharge of the battery unit. Each of the battery arms includes: a battery composed of one or more battery cells connected in series; a switch connected in series to the battery; and a battery monitoring device that, in a case of having detected abnormality of the battery, opens the switch to thereby isolate the battery arm including the abnormal battery, and sends a switch opening signal indicating that the switch has been opened to the charge/discharge control device. The charge/discharge control device performs a control to reduce a charge/discharge current or charge/discharge power of the battery unit when the switch opening signal is sent from the battery monitoring device of the battery unit to the charge/discharge control device.

Abstract: A gas exhaust structure of a battery includes a rupture valve formed in a battery body, and a pipe unit composed by integrating a coupling pipe and an exhaust pipe with each other. A one-side opening of the coupling pipe is coupled to the rupture valve. The exhaust pipe is coupled to an other-side opening of the coupling pipe, guides gas that spouts out from an inside of the battery body through the rupture valve and the one-side opening of the coupling pipe, and exhausts the gas to an outside. The exhaust pipe is arranged to be offset with respect to the rupture valve without allowing an extended line that passes through a center of the rupture valve and a centerline of the exhaust pipe to be perpendicular to each other.

Abstract: A battery system in which module batteries, each of which includes cell batteries connected in series, are connected to one another. Each of the module batteries includes: a cell voltage detection/inter-cell balancing circuit that detects a cell voltage of each of the cell batteries to then create a cell voltage signal, and balances energies among the cell batteries based on the created cell voltage signal; and an inter-module balancing circuit that balances energies among the module batteries based on a module voltage obtained by summing up the cell voltages of the cell batteries.

Abstract: There is provided a battery apparatus mounted in a vehicle that is not subjected to forced draft, the battery apparatus including a plurality of rectangular parallelepiped batteries stacked in a direction vertical to a traveling direction of the vehicle, a rectangular parallelepiped battery box that accommodates the plurality of rectangular parallelepiped batteries therein, and a heat equalizing plate that is brought into contact with the plurality of rectangular parallelepiped batteries.