The invention relates to battery modules, battery devices and to methods for producing a battery module.

The invention relates to battery modules, battery devices and to methods for producing a battery module.

The invention relates to battery modules, battery devices and to methods for producing a battery module.

A dual real-time clock battery power unit may comprise a top battery housing for retaining a first battery, having an exterior fastener arm for partially inserting beneath an exterior fastener lip of a bottom battery housing for retaining a second battery when the top and bottom battery housings are in a closed clamshell configuration. A positive terminal for contacting a second battery positive surface, and a bottom negative terminal for contacting a second battery negative surface may be mounted within the bottom battery housing. A top negative terminal may be mounted within the top battery housing to contact a first battery negative surface. The top and bottom battery housings may be operably connected to form the closed clamshell configuration disposing the bottom battery housing between the top battery housing and a printed circuit board (PCB), and electrically coupling the PCB to the top and bottom batteries, forming a parallel circuit.

A dual real-time clock battery power unit may comprise a top battery housing for retaining a first battery, having an exterior fastener arm for partially inserting beneath an exterior fastener lip of a bottom battery housing for retaining a second battery when the top and bottom battery housings are in a closed clamshell configuration. A positive terminal for contacting a second battery positive surface, and a bottom negative terminal for contacting a second battery negative surface may be mounted within the bottom battery housing. A top negative terminal may be mounted within the top battery housing to contact a first battery negative surface. The top and bottom battery housings may be operably connected to form the closed clamshell configuration disposing the bottom battery housing between the top battery housing and a printed circuit board (PCB), and electrically coupling the PCB to the top and bottom batteries, forming a parallel circuit.

Management device manages a plurality of power storage modules connected in parallel to load via switches. With some of switches connected to some of the plurality of power storage modules being in an on state and other switches connected to other power storage modules being in an off state, determination unit of management device does not permit at least one of other switches in the off state to be turned on in a case where at least one switch is turned on and an upper limit value of a current or power allowed to be supplied to load entirely from the plurality of power storage modules with at least one switch being turned on becomes less than or equal to a value before the turning-on of at least one switch.

Management device manages a plurality of power storage modules connected in parallel to load via switches. With some of switches connected to some of the plurality of power storage modules being in an on state and other switches connected to other power storage modules being in an off state, determination unit of management device does not permit at least one of other switches in the off state to be turned on in a case where at least one switch is turned on and an upper limit value of a current or power allowed to be supplied to load entirely from the plurality of power storage modules with at least one switch being turned on becomes less than or equal to a value before the turning-on of at least one switch.

An electric storage system is provided including a switching unit which is arranged between an electric storage unit of an electric storage device which is configured to be connectable in parallel with another power supply device and wire which is configured to electrically connect the electric storage device and the another power supply device, wherein the switching unit is configured to switch the electrical connection relationship between the wire and the electric storage unit; and a restriction unit which is connected in parallel with the switching unit between the wire and the electric storage unit, has a higher resistance than the switching unit, and is configured to cause current to flow in a direction from the electric storage unit to the wire and suppress current flowing in a direction from the wire to the electric storage unit.

An electric storage system is provided including a switching unit which is arranged between an electric storage unit of an electric storage device which is configured to be connectable in parallel with another power supply device and wire which is configured to electrically connect the electric storage device and the another power supply device, wherein the switching unit is configured to switch the electrical connection relationship between the wire and the electric storage unit; and a restriction unit which is connected in parallel with the switching unit between the wire and the electric storage unit, has a higher resistance than the switching unit, and is configured to cause current to flow in a direction from the electric storage unit to the wire and suppress current flowing in a direction from the wire to the electric storage unit.

A battery pack includes at least one battery cell; a protection circuit module electrically connected to the at least one battery cell; and a thermocompression bonding layer, the thermocompression bonding layer providing a disconnectable electrical connection between an electrode tab of the at least one battery cell and a connection tab of the protection circuit module, wherein the thermocompression bonding layer includes conductive particles and an insulating composite resin layer, the insulating composite resin layer surrounds the conductive particles, and the insulating composite resin layer includes at least one first resin layer and at least one second resin layer, the at least one first resin layer being different from the at least one second resin layer.