Abstract: According to one embodiment, a device includes a power management module to which a power is supplied from an external power source, a power source supply circuit to which a power is supplied from the power management module via a first input terminal, a latch circuit configured to be operated by a power supplied from the power supply circuit or a power supplied via a second input terminal, a circuit configured to output a logic signal that sets a shutdown signal output from the latch circuit to a third input terminal, and a logic communication circuit to which a logic signal is supplied via the third input terminal and which supplies the logic signal to a forth terminal of the larch circuit. The shutdown signal output from the latch circuit is set to an predetermined level when the logic signal is set to a second level from a first level.

Abstract: According to one embodiment, a communication circuit includes a direct-current converter circuit configured to generate a second power supply potential different from a second reference potential by a predetermined potential, from a first power supply potential, a first receiving circuit configured to receive a binary communication signal, whose one level is at a first reference potential, through a first signal input terminal, by a differential transmission method, a first level shift circuit configured to convert the communication signal received by the first receiving circuit into a binary communication signal, whose one level is at the second reference potential, and the other level is at the second power supply potential, and a first transmission circuit configured to output the binary communication signal converted by the first level shift circuit, through a first signal output terminal, by a differential transmission method.

Abstract: A battery pack of a battery includes a plurality of laminated cells that are hermetically sealed by a laminated film, a case for storing the plurality of the laminated cells, a positive electrode terminal and a negative electrode terminal of a battery for connecting the cells in parallel or series for connection to the outside of the case, a lid member for pressing the cells from the uppermost surface of the laminate of the cells stored in the case toward the inner side of the case in the direction opposite to the laminating direction of the cells, and a fixing member for fixing the lid member to the case at a position where a predetermined pressing force is applied.

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 includes: a plurality of unit batteries each having a rectangular-solid sealed metal unit battery case and two voltage terminals protruding from a terminal surface of the unit battery case; a spacer arranged between two main surfaces of adjacent unit batteries opposing to each other so as to maintain a gap between the main surfaces; and a connection portion which electrically connects the voltage terminals of different unit batteries. The spacer has a plurality of protrusions for supporting the corner portions of the unit battery cases and through holes formed at positions opposing to the main surfaces which can receive expanded portions when the main surfaces of the unit battery cases are expanded by inner pressure of the unit battery cases.

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: An assembled battery voltage detecting apparatus includes a sampling switch section which samples a voltage of each of single batteries, capacitors charged with voltages of single batteries, a transfer switch section to transfer a charge voltage charged in each of the capacitors, a ground potential setting switch section which, in the case of reading the voltage charged in the capacitor, connects a reference electric potential of the capacitor to a grounding terminal of a voltage detecting apparatus, and a voltage detecting circuit which controls a switching timing of each of the above switches, and then reads a voltage of each capacitor.

Abstract: A battery module comprising: a plurality of battery cells of substantially rectangular parallelepiped shape; a first casing having a first holding section 42 that holds one end of the plurality of battery cells; a second casing having a second holding section 52 that holds the other end of the plurality of battery cells; and a plurality of insulating members arranged between the battery cells; wherein the battery cells are arranged lined up so that adjacent main walls thereof extending between the one ends and the other ends face each other and the plurality of insulating members are arranged in mutually separated fashion between the main walls.

Abstract: Negative (?) terminals and positive (+) terminals of a plurality of cells in a connected state are housed in a metal case. The metal case is attached with positive-side and negative-side external terminals, and the external terminals and cell terminals are connected with each other through lead wires. The metal case is attached with a voltage monitoring connector, and the voltage monitoring connector and a voltage taking electric wires extending from the positive and negative sides of the respective cells are connected with each other. Through the voltage monitoring connector, the charging degrees of the individual cells can be obtained, thereby preventing the cells from being overcharged.

Abstract: There is provided a bus bar which electrically connects two terminals respectively provided to two batteries with each other and is formed of at least one tabular conductor, the bus bar including two connecting portions which are connected with the two terminals, and a convex portion formed into a convex shape between the two connecting portions by curving the tabular conductor.

Abstract: A rolled electrode battery includes a rolled electrode body including band-shaped positive and negative electrode plates formed individually with electrode active material layers, which are rolled with a band-shaped separator interposed between them and formed into a flat shape. Each of the electrode plates includes a band-shaped electrode portion formed with the electrode active material layer and contacting the separator and a side edge portion projecting from the separator and not formed with an electrode active material layer. The side edge portion forms lugs arranged at intervals along the lengths of the electrode plates. The positive and negative electrode plates are rolled in layers so that the lugs of the positive electrode plate are laminated to one another to form a positive electrode tab and that the lugs of the negative electrode plate are laminated to one another to form a negative electrode tab.

Abstract: In a battery system, battery modules (3a, 3b) connected to each other in series respectively include: one or more single cells (3a1 to 3an, 3b1 to 3b-n) connected to one another in any one of series, parallel, and series-parallel; cell voltage switches (7a, 7b) for detecting voltages respectively of the one or more single cells; module monitoring control units (9a, 9b) each for monitoring the detected voltages respectively of the one or more signal cells; and communications level converter circuits (14a, 14b). The battery system includes a master unit (8a) for receiving information on the voltages respectively of the one or more single cells from the module monitoring control units via the communications level converter circuits. One of the communications level converter circuits includes a switch element (Q32) for transmitting a signal of a low-potential battery module to a high-potential battery module.

Abstract: A plurality of cells are housed in a metal case with positive (+) terminals and negative (?) terminals thereof connected through a connection member. The metal case includes positive-side and negative-side external terminals, and the external terminals and terminals of respective cells are connected to each other by a lead wire. In the metal case, there are provided a protective circuit for preventing the respective cells from being overcharged or overdischarged and a battery output control switch interlocking with a power switch of the protective circuit. The power switch of the protective circuit is provided outside the metal case to permit turning-on/off operations from the outside of the metal case.

Abstract: A battery pack includes: a plurality of flat-shaped cells each including a generator element sealed by a laminate film; a case for accommodating the cells so as to be laminated in a thickness direction thereof, the case having an opening formed at least at one end thereof; a lid member fixed to the opening of the case and pressing the laminated cells in a laminating direction thereof; a bottom member provided between the case and the cell located at an end of the laminated cells on a side opposite to the opening of the case; a first tray provided between the cells and brought into contact with the case; a second tray provided between the lid member and the cells and brought into contact with the case; and a third tray provided between the bottom member and the cells and brought into contact with the case. The lid member and the bottom member are formed of a material having a thermal conductivity lower than a thermal conductivity of any one of the first tray, the second tray and the third tray.

Abstract: A battery pack of a battery includes a plurality of laminated cells that are hermetically sealed by a laminated film, a case for storing the plurality of the laminated cells, a positive electrode terminal and a negative electrode terminal of a battery for connecting the cells in parallel or series for connection to the outside of the case, a lid member for pressing the cells from the uppermost surface of the laminate of the cells stored in the case toward the inner side of the case in the direction opposite to the laminating direction of the cells, and a fixing member for fixing the lid member to the case at a position where a predetermined pressing force is applied.

Abstract: An assembled battery voltage detecting apparatus includes a sampling switch section which samples a voltage of each of single batteries, capacitors charged with voltages of single batteries, a transfer switch section to transfer a charge voltage charged in each of the capacitors, a ground potential setting switch section which, in the case of reading the voltage charged in the capacitor, connects a reference electric potential of the capacitor to a grounding terminal of a voltage detecting apparatus, and a voltage detecting circuit which controls a switching timing of each of the above switches, and then reads a voltage of each capacitor.