All-solid battery module and electronic device

Abstract

A full-solid battery module includes a full-solid battery having a voltage exceeding 0 V, a switching element connected in series with the full-solid battery, a control unit that controls on / off of the switching element, and a trigger input path connected to the control unit, via which a trigger that causes the switching element to transition to an on state is input.

Description

Technical Field

[0001] This invention relates to all-solid-state battery modules and electronic devices. Background Technology

[0002] In recent years, research and development of all-solid-state batteries have been booming. All-solid-state batteries offer several advantages: they can be directly mounted via reflow soldering, facilitating modularization; and they require less space for assembly into the main unit compared to conventional lithium-ion batteries. However, when all-solid-state batteries are mounted with other components via reflow soldering while still energized, it is difficult to control the timing of solder paste melting and the connection sequence between components. Therefore, due to the reflow soldering connection method, the power from the all-solid-state battery is unnecessarily supplied to circuit components such as integrated circuits (ICs), potentially leading to damage, malfunctions, or short circuits. To avoid this problem, the technique described in Patent Document 1, which involves mounting the battery to a 0V discharge state on a substrate, is being considered.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: International Publication No. 2007 / 086289 Summary of the Invention

[0006] The technical problem that the invention aims to solve

[0007] However, when applying the technology described in Patent Document 1, deep discharge of the all-solid-state battery is required, which raises concerns about potential degradation of the battery. Furthermore, the all-solid-state battery needs to be charged after substrate mounting, leading to increased manufacturing steps and limitations on the manufacturing process. Therefore, it is desirable to mount the all-solid-state battery onto the substrate while it is in a voltage-carrying state without causing the aforementioned problems.

[0008] Therefore, one of the objectives of this invention is to provide an all-solid-state battery module and electronic device capable of mounting an all-solid-state battery with voltage onto a substrate.

[0009] Technical solutions for solving technical problems

[0010] The present invention is an all-solid-state battery module comprising: an all-solid-state battery having a voltage exceeding 0V; a switching element connected in series with the all-solid-state battery; a control unit for controlling the switching element to be turned on / off; and a trigger input path connected to the control unit, wherein a trigger for turning the switching element to the on state is input via the trigger input path.

[0011] Furthermore, the present invention is an electronic device, which is an electronic device in which an all-solid-state battery module is mounted on a circuit board. The all-solid-state battery module includes: an all-solid-state battery having a voltage exceeding 0V; a switching element connected in series with the all-solid-state battery; a first control unit for controlling the switching element to be turned on / off; and a trigger input path connected to the first control unit, through which a trigger is input to change the switching element to the on state. The electronic device also includes a second control unit and input / output lines for the all-solid-state battery on the circuit board.

[0012] Invention Effects

[0013] According to at least one embodiment of the present invention, a voltage-equipped all-solid-state battery can be mounted on a substrate without adversely affecting other electronic components mounted together. It should be noted that the content of this invention is not to be construed as limiting the effects illustrated in this specification. Attached Figure Description

[0014] Figure 1 Figure A is used to illustrate the all-solid-state battery module according to the first embodiment. Figure 1 B is a diagram showing the state in which the all-solid-state battery module according to the first embodiment is mounted on the circuit board.

[0015] Figure 2 This is a diagram showing the positive terminal and other features of the all-solid-state battery module according to the first embodiment.

[0016] Figure 3 This is a diagram illustrating a configuration example of the all-solid-state battery module according to the first embodiment.

[0017] Figure 4 This is a diagram illustrating an example of the configuration of an electronic device using the all-solid-state battery module according to the first embodiment.

[0018] Figure 5 This diagram is referenced when explaining other examples of triggered supply sources.

[0019] Figure 6 This diagram is referenced when explaining other examples of triggered supply sources.

[0020] Figure 7 This is a diagram illustrating an example of the configuration of an all-solid-state battery module according to the second embodiment.

[0021] Figure 8 This is a diagram illustrating a modified example of the all-solid-state battery module according to the second embodiment.

[0022] Figure 9 This is a diagram used to illustrate an application example.

[0023] Figure 10This is a diagram used to illustrate an application example. Detailed Implementation

[0024] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that the description is presented in the following order.

[0025] <First Implementation>

[0026] <Second Implementation>

[0027] <Variation Example>

[0028] <Application Examples>

[0029] The embodiments described below are preferred examples of the present invention, and the content of the present invention is not limited to these embodiments.

[0030] <First Implementation>

[0031] [All-Solid-State Battery Module]

[0032] Figure 1 A shows an example of an all-solid-state battery module (all-solid-state battery module 1) according to this embodiment. Figure 1 Figure B shows the state in which the all-solid-state battery module 1 is mounted on the circuit board (circuit board 2). For example... Figure 1 As shown in Figure A, the all-solid-state battery module 1 has an all-solid-state battery 11 and a circuit board 11A on which the all-solid-state battery 11 is mounted.

[0033] like Figure 2 As shown, the all-solid-state battery module 1 has a positive terminal TA, a negative terminal TB, and an enable pin EP. The positive terminal TA, the negative terminal TB, and the enable pin EP are led out from appropriate locations in the all-solid-state battery module 1.

[0034] Reference Figure 3 A detailed description of the configuration example of the all-solid-state battery module 1 will be provided. The all-solid-state battery module 1 includes an all-solid-state battery 11 and a circuit board 11A on which the all-solid-state battery 11 is mounted. A circuit board 11A is mounted on the circuit board 11A using a predetermined connection pattern. Figure 3 The configuration is shown. A power line PLA is connected to the positive terminal of the all-solid-state battery 11, through which the positive terminal TA is led out. Additionally, a power line PLB is connected to the negative terminal of the all-solid-state battery 11, through which the negative terminal TB is led out.

[0035] Additionally, the all-solid-state battery module 1 includes a control IC 12 (as an example of a control unit or a first control unit), a FET (Field Effect Transistor) 13, a current sensing resistor 14, and a resistor 15. A trigger input path TL is connected to a designated port of the control IC 12, and an enable pin EP is derived via the trigger input path TL.

[0036] Examples of all-solid-state batteries 11 include lithium-ion all-solid-state batteries, sodium-ion all-solid-state batteries, and calcium-ion all-solid-state batteries. In this embodiment, an all-solid-state battery with a known structure and known materials can be used as the all-solid-state battery 11. Figure 1 As shown in Figure A, the all-solid-state battery 11 in this embodiment is a surface-mount type battery mounted on a circuit board 11A. It should be noted that, in this specification, an all-solid-state battery refers to a secondary battery having at least a solid electrolyte layer, without requiring that its entire structure be solid.

[0037] Control IC 12 controls the all-solid-state battery module 1. For example, control IC 12 controls the on / off state of FET 13. Additionally, control IC 12 sends measurement results, such as the current value detected via current sensing resistor 14, to a higher-level protection IC. It should be noted that control IC 12 operates using power from the appropriately converted power of the all-solid-state battery 11.

[0038] FET13 is a switching element that is controlled to be turned on / off by control IC12. It should be noted that, as will be described in detail later, FET13 is set to the off state when the all-solid-state battery module 1 is installed to limit the output of the all-solid-state battery 11.

[0039] The current sensing resistor 14 is used to detect the current value flowing through the current path of the all-solid-state battery module 1. For example, the control IC 12 detects the current value based on the voltage value generated across the current sensing resistor 14. The detected current value is sent to a higher-level IC (e.g., the protection IC described later). It should be noted that in this embodiment, the current sensing resistor 14 is connected to the power line PLB, but it can also be connected to the power line PLA.

[0040] Resistor 15 is connected between the power line PLA and the designated port of control IC 12. Resistor 15 limits the current input to control IC 12.

[0041] [Example of the structure of an electronic device]

[0042] Figure 4 This diagram illustrates an example of the configuration of an electronic device (electronic device 100) having the aforementioned all-solid-state battery module 1 mounted on a circuit board 2. It should be noted that... Figure 4 The diagrams relating to the structure of the all-solid-state battery module 1 have been partially simplified.

[0043] A power line PLA is led out from the positive terminal side of the all-solid-state battery module 1. The power line PLA is connected to the positive terminal TA. Additionally, a power line PLb is led out from the negative terminal side of the all-solid-state battery module 1. The power line PLb is connected to the negative terminal TB. In this embodiment, the power lines PLA and PLb correspond to the input and output lines of the all-solid-state battery 11.

[0044] In addition, the electronic device 100 includes a protection IC 21, a fuse 22, a FET 23, and a charge / discharge control switch 24, which are examples of a second control unit.

[0045] Protection IC 21 performs protection actions in electronic device 100. Specific examples of protection actions will be described later. Furthermore, protection IC 21 is connected to control IC 12 of the all-solid-state battery module 1 via a defined communication line (not shown), through which data (e.g., current value) and various commands measured by the all-solid-state battery module 1 can be exchanged. Additionally, protection IC 21 is connected to trigger input path TL via enable pin EP. According to this configuration, protection IC 21 can supply a logically high-level (Hi) or low-level (Lo) signal to control IC 12 via trigger input path TL.

[0046] Fuse 22 is connected, for example, to the power line PLA. As fuse 22, for example, an SCP (Self-Control Protector) can be applied. An SCP is a fuse with a heater, a device that cuts off the fuse by using power from a battery (in this case, an all-solid-state battery 11) to heat the heater. By changing the timing of power supply to the heater, the fuse can be cut off at any time.

[0047] FET23 is a switching element connected between fuse 22 and protection IC 21. FET23 is controlled to be turned on / off by protection IC 21. When FET23 is turned on, the heater of fuse 22 overheats, causing fuse 22 to blow.

[0048] The charge / discharge control switch 24 is a switch controlled by the protection IC 21 to be turned on / off. The charge / discharge control switch 24 includes a charging control switch and a discharging control switch (not shown). By appropriately turning the charging control switch and the discharging control switch on / off, charging and discharging are respectively enabled or disabled. For example, a FET can be used as the charge / discharge control switch 24. It should be noted that in this embodiment, the charge / discharge control switch 24 is connected to the power line PLA, but it can also be connected to the power line PLB.

[0049] [The operation of electronic devices]

[0050] (An example of a protective action)

[0051] Next, an example of the main operation of the electronic device 100 will be explained. First, the protection operation performed by the electronic device 100 will be explained. The protection IC 21 functions as a charge / discharge control unit that controls charge and discharge by appropriately switching the charge / discharge control switch 24 on and off. For example, when the protection IC 21 determines that charge and discharge can be performed without problems in the all-solid-state battery 11 without any abnormalities, it turns on the charge control switch and the discharge switch. In addition, when it is necessary to prohibit charging, such as when the voltage of the all-solid-state battery 11 reaches the overcharge prohibition voltage, the protection IC 21 at least turns off the charge control switch. In addition, when it is necessary to prohibit discharging, such as when the voltage of the all-solid-state battery 11 reaches the over-discharge prohibition voltage, the protection IC 21 at least turns off the discharge control switch. In addition, when the all-solid-state battery 11 is deeply discharged and reaches the recharge prohibition region, the protection IC 21 turns off the charge control switch and the discharge control switch to stop charging and discharging.

[0052] It should be noted that the protection IC21 can also perform other known protection actions such as overcurrent detection.

[0053] (Actions involved in output control)

[0054] Next, the operation related to the output control in this embodiment will be explained. In this embodiment, before the all-solid-state battery module 1 is mounted on the circuit board 2 by reflow soldering or the like, a process is performed to charge the all-solid-state battery 11, which currently has no voltage (hereinafter, appropriately referred to as initial charging), as a process to make the all-solid-state battery 11 usable as a battery, or even to activate the all-solid-state battery 11. Initial charging is performed, for example, by connecting a charging device to the positive terminal TA and the negative terminal TB after turning on the FET 13 using a manufacturing apparatus or the like. Since charging has been performed, the control IC 12 is in an operational state (activated state).

[0055] However, if the solid-state battery module 1 is mounted on the circuit board 2 while the solid-state battery 11 is charged to a voltage exceeding 0V, it is unknown which part is connected by solder first. Therefore, during reflow soldering, this could lead to short circuits or malfunctions of electronic components such as ICs. Therefore, during reflow soldering, the FET 13 is kept in the off state to prevent power output from the solid-state battery 11. This prevents short circuits and other malfunctions.

[0056] On the other hand, at an appropriate time after reflow soldering (e.g., during substrate inspection), the process of changing FET13 from the off state to the on state is performed to enable the use of the all-solid-state battery module 1. The control IC12 responds to a trigger that causes FET13 to change to the on state by being input to itself, causing FET13 to change from the off state to the on state.

[0057] The trigger, for example, is a high-level or low-level signal, provided to the all-solid-state battery module 1 from outside. The trigger may be output from the protection IC 21 and input to the control IC 12 via the trigger input path TL.

[0058] The control IC12 identifies the triggered input, for example, by detecting changes in the logic level of the input to its own port connected to the trigger input path TL. More specifically, for example, by reflow soldering, etc. Figure 4 After the all-solid-state battery module 1, as shown, is mounted on the circuit board 2, a predetermined voltage (monostable) is input to the protection IC 21 during board inspection or other procedures, thereby activating the protection IC 21. The activated protection IC 21, based on a pre-stored program, provides a high-level or low-level signal to the control IC 12 as a trigger. Upon detecting this signal input, the control IC 12 causes the FET 13, which is set to the off state, to switch to the on state. Afterward, the output of the all-solid-state battery module 1 is unrestricted and can supply an appropriate load.

[0059] It should be noted that, depending on the configuration of the electronic device 100, the protection IC 21 is sometimes connected to a higher-level host device (hereinafter appropriately referred to as the host-side system) on the main body side. In this case, for example, as... Figure 5 As shown, a control signal for triggering the output is sent from the main body system 31 (an example of the electronic device side control unit) to the protection IC 21. Upon receiving the control signal, the protection IC 21 sends a high-level or low-level signal to the control IC 12 via the trigger input path TL. Then, the control IC 12 turns on the FET 13.

[0060] In addition, such as Figure 6 As shown, the enable pin EP of control IC12 can also be connected to the main system 31 without going through protection IC21. Then, a high-level or low-level signal can be sent directly from the main system 31 to control IC12 via the trigger input path TL. According to this example, if protection IC21 is unable to output a trigger to control IC12 for some reason, FET13 can be reliably turned on because a trigger can be output from the main system 31 to control IC12.

[0061] [Effect]

[0062] Based on the above-described embodiment, for example, the following effects can be obtained.

[0063] Because the all-solid-state battery module can be installed with a voltage exceeding 0V, deep discharge of the all-solid-state battery is not required before reflow soldering, thus preventing battery degradation. Furthermore, no initial charging of the all-solid-state battery is required after reflow soldering.

[0064] When installed via reflow soldering or similar methods, the output of the all-solid-state battery is limited, thus preventing the power from the all-solid-state battery from adversely affecting other electronic components.

[0065] Furthermore, conventional methods have resulted in limitations in the final mounting of solid-state battery modules, including solid-state batteries with voltages exceeding 0V, onto circuit boards. However, these limitations are not present in this invention.

[0066] After the all-solid-state battery module is installed, it can reliably supply power from the all-solid-state battery to the outside.

[0067] [Modifications of the First Embodiment]

[0068] It should be noted that the above description illustrates an example of an electronic device 100 having only one all-solid-state battery module 1, but the electronic device 100 may also have multiple all-solid-state battery modules 1. Multiple all-solid-state battery modules 1 may be connected in series, for example. Each control IC 12 of the multiple all-solid-state battery modules 1 is connected to a protection IC 21, and similarly to the embodiment described above, the protection IC 21 triggers each control IC 12. Each control IC 12 turns on its corresponding FET 13. It should also be noted that each control IC 12 may be triggered from the main body system 31.

[0069] <Second Implementation>

[0070] Next, the second embodiment will be described. It should be noted that in the description of the second embodiment, the same or identical components described above are labeled with the same reference numerals in the accompanying drawings, and repeated descriptions are omitted where appropriate. Furthermore, unless otherwise specified, the matters described in the first embodiment can be applied to the second embodiment.

[0071] In general, the second embodiment differs from the first embodiment in that the triggering source is not an IC or the like. More specifically, the second embodiment is an embodiment that triggers the control IC12 by physically connecting a predetermined cut-off portion using solder or the like.

[0072] Figure 7This is a diagram illustrating a configuration example of the electronic device (electronic device 100A) according to the second embodiment. Electronic device 100A and... Figure 4 The difference in the illustrated electronic device 100 is that the trigger input path TL is not connected to the protection IC 21, the trigger input path TL is connected to the input / output line (in this example, the power line PLb) via the enable pin EP and the line LA, and a cut-off portion 41A that can be electrically cut off by a predetermined space is formed on the line LA. The cut-off portion 41A is formed on the outside of the all-solid-state battery module 1, and as a specific example, it consists of two pads (also called split pads, etc.) that can be physically connected by soldering.

[0073] Similar to the first embodiment, FET 13 is in the off state, and the all-solid-state battery module 1, including the all-solid-state battery 11 with a voltage exceeding 0V, is mounted on the circuit board 2 via reflow soldering or the like. In this state, the cut-off section 41A is not electrically connected, and the state of the port of the control IC 12 connected to the trigger input path TL is "undefined" as a logic level. Then, after reflow soldering, the trigger input path TL is short-circuited by configuring a conductive part made of metal such as solder on the cut-off section 41A, thereby electrically connecting the trigger input path TL to the power line PLb. As a result, the logic level (voltage) of the port of the control IC 12 connected to the trigger input path TL changes from "undefined" to "low level (or high level)". The control IC 12 detects this change in logic level and recognizes that it has been triggered from the outside. Then, since a trigger has been given, the control IC 12 turns on FET 13. As described above, triggers other than high-level or low-level signals can be used.

[0074] In this embodiment, multiple all-solid-state battery modules 1 can also be used. Figure 8 This is a diagram illustrating a configuration example of an electronic device (electronic device 100B) according to a variation of this embodiment. Figure 8 As shown, the electronic device 100B, for example, has three all-solid-state battery modules 1 connected in series. The trigger input path TL and enable pin EP of each all-solid-state battery module 1 are connected to the input / output lines (in this example, power lines PLb) of the three all-solid-state battery modules 1 via a line LB, which serves as a connection. In this modified example, a cut-off portion 41B is formed on the line LB. The line LB is a shared line for the trigger input path TL and enable pin EP of each all-solid-state battery module 1.

[0075] After reflow soldering, a short circuit is created by shorting the trigger input path TL to the power line PLb by configuring a conductive element containing metal such as solder in the cut-off section 41B. This causes the logic level (voltage) of the ports of each control IC 12 connected to the trigger input path TL to change from "undefined" to "low level (or high level)". Each control IC 12 detects this change in logic level and identifies that it has been triggered externally. Then, because a trigger has been applied, each control IC 12 turns on the FET 13 within the same all-solid-state battery module 1. This allows power to be supplied to the three all-solid-state battery modules 1 from the electronic device 100B.

[0076] In order to remove the output limitation of the solid-state battery 11 of each solid-state battery module 1 after reflow soldering, conventionally, it is necessary to provide a cut-off section in the output path of each solid-state battery module 1 and electrically connect the cut-off sections. That is, it is necessary to provide cut-off sections corresponding to the number of each solid-state battery module 1. However, according to this modified example, since only one cut-off section is required, the process of electrically connecting the cut-off sections can be simplified, and the area on the circuit board used to provide the cut-off section can be reduced.

[0077] <Variation Example>

[0078] The above describes the specific implementation of the present invention, but the content of the present invention is not limited to the above implementation, and various modifications can be made based on the technical concept of the present invention.

[0079] In the above embodiment, once FET13 is turned on, even if it is subsequently triggered via the trigger input path TL, the control IC12 can ignore the trigger and not accept it. This prevents FET13 from being turned off again due to input to the enable pin EP caused by noise or other reasons.

[0080] As a switching element, a transistor or IGBT (Insulated Gate Bipolar Transistor) can be used instead of a FET. Furthermore, the cut-off portion can be electrically connected via jumpers instead of soldering. Lines LA and LB can also be connected to the power line PLA. Additionally, without departing from the spirit of the invention, other configurations can be added to the all-solid-state battery module or electronic device, or specified configurations can be deleted. Furthermore, all-solid-state battery modules and electronic devices are sometimes referred to as all-solid-state battery packs or similar names depending on their application, but this should not be construed as limiting the scope of the invention by such name differences.

[0081] The items described in the above-described embodiments and variations can be appropriately combined. Furthermore, the materials and processes described in the embodiments are merely examples, and the scope of this invention is not limited to the illustrated materials.

[0082] <Application Examples>

[0083] The all-solid-state battery module involved in this invention can be installed in various electronic devices, power tools, electric vehicles, etc., or used to supply power.

[0084] Specific application examples will be explained. For instance, the aforementioned all-solid-state battery module can be used as a power source for wearable devices with portable information terminal functions, also known as wearable terminals. Examples of wearable terminals include watch-type terminals and glasses-type terminals, but are not limited to these.

[0085] Figure 9 An example of a wearable device with a built-in all-solid-state battery module is shown. For example... Figure 9 As shown, the wearable terminal 630 involved in the application example is a watch-type terminal, which has a battery pack 632 inside. The all-solid-state battery module involved in this invention can be used as the battery pack 632. The wearable terminal 630 can be worn and used by a user. The wearable terminal 630 can be a deformable flexible terminal.

[0086] like Figure 10 As shown, the wearable terminal 630 involved in the application example includes an electronic circuit 631 and a battery pack 632 as the main body of the electronic device. The battery pack 632 is electrically connected to the electronic circuit 631. The wearable terminal 630, for example, has a configuration in which the user can freely attach and detach the battery pack 632. It should be noted that the configuration of the wearable terminal 630 is not limited to this; it may also have a configuration in which the battery pack 632 is built into the wearable terminal 630, so that the user cannot remove the battery pack 632 from the wearable terminal 630.

[0087] When the battery pack 632 is charging, the positive terminal 634A and the negative terminal 634B of the battery pack 632 are connected to the positive terminal and the negative terminal of the charger (not shown), respectively. On the other hand, when the battery pack 632 is discharging (when the wearable terminal 630 is in use), the positive terminal 634A and the negative terminal 634B of the battery pack 632 are connected to the positive terminal and the negative terminal of the electronic circuit 631, respectively.

[0088] (Electronic Circuits)

[0089] The electronic circuit 631 includes, for example, a CPU, a peripheral logic unit, an interface unit, and a storage unit, which control the entire wearable terminal 630.

[0090] (Battery pack)

[0091] The battery pack 632 includes an all-solid-state battery cell 610 (all-solid-state battery 11 in the embodiment) and a charging and discharging circuit 633.

[0092] In this application example, an example of using the all-solid-state battery module involved in the present invention as a battery pack 632 is shown, but the all-solid-state battery module involved in this case can also be mounted in the electronic circuit 631 of the main body of the electronic device.

[0093] Explanation of reference numerals in the attached figures

[0094] 1: All-solid-state battery module;

[0095] 11: All-solid-state battery;

[0096] 12: Control IC;

[0097] 13: FET;

[0098] 21: Protect IC;

[0099] 31: Main body side system;

[0100] 41A, 41B: Cut-off section;

[0101] 100, 100A, 100B: Electronic devices;

[0102] PLA, PLA, PLB, PLb: power lines;

[0103] EP: Enable pin;

[0104] TL: Trigger input path;

[0105] LA, LB: lines.

Claims

1. An all-solid-state battery module, comprising: All-solid-state battery with a voltage exceeding 0V; A switching element is connected in series with the all-solid-state battery; The control unit controls the on / off state of the switching element; and The input path is triggered and connected to the control unit. The all-solid-state battery is mounted on the surface of the circuit board. During reflow mounting onto the substrate, the switching element is disconnected, and the output of the all-solid-state battery is cut off. After installation, the switching element switches to the ON state upon triggering via the trigger input path. After the switching element transitions to the ON state, the control unit does not accept a re-disconnection based on subsequent triggers of the trigger input path.

2. The all-solid-state battery module according to claim 1, wherein, The all-solid-state battery is a surface-mount type battery.

3. The all-solid-state battery module according to claim 1 or 2, wherein, The trigger is a high-level signal or a low-level signal.

4. An electronic device comprising an all-solid-state battery module mounted on a circuit board. The all-solid-state battery module has the following features: All-solid-state battery with a voltage exceeding 0V; A switching element is connected in series with the all-solid-state battery; The first control unit controls the on / off state of the switching element; and The input path is triggered and connected to the first control unit. The all-solid-state battery is mounted on the surface of the circuit board. During reflow mounting onto the substrate, the switching element is disconnected, and the output of the all-solid-state battery is cut off. After installation, the switching element switches to the ON state upon triggering via the trigger input path. After the switching element transitions to the ON state, the control unit does not accept a re-disconnection based on subsequent triggers of the trigger input path. The electronic device also includes a second control unit and the input / output lines of the all-solid-state battery on the circuit board.

5. The electronic device according to claim 4, wherein, The trigger is provided from outside the all-solid-state battery module.

6. The electronic device according to claim 4 or 5, wherein, The trigger input path is electrically connected to the second control unit, and the trigger is output from the second control unit.

7. The electronic device according to claim 4, wherein, The trigger output from the control unit on the electronic device side is input to the first control unit via the trigger input path.

8. The electronic device according to claim 4 or 5, wherein, A cutting section capable of electrically cutting off is provided between the trigger input path and the input / output line, separated by a predetermined space.

9. The electronic device according to claim 4 or 5, wherein, have: Multiple all-solid-state battery modules; and The connection section connects the trigger input path and the input / output line of each of the plurality of solid-state battery modules. A cutting section capable of electrical cutting is provided at a predetermined space separated from the connecting part.

10. The electronic device according to claim 8, wherein, By arranging a conductive component in the cut-off section, the trigger input path is electrically connected to the input / output line.

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