Laminate structure

Abstract

To accurately detect partial peeling of a conductive adhesive material.SOLUTION: A laminate structure 100 includes a battery module 110, a conductive member 120, a first conductive adhesive 130A, and a first temperature sensor 140A. The conductive member 120 is laminated on the battery module 110. The first conductive adhesive 130A is disposed between the battery module 110 and the conductive member 120. The first conductive adhesive 130A bonds the battery module 110 and the conductive member 120 to each other. The first conductive adhesive 130A electrically connects the battery module 110 and the conductive member 120 to each other. The first temperature sensor 140A is disposed between the battery module 110 and the conductive member 120 so as to be in contact with the first conductive adhesive 130A.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to laminate structures. [Background technology]

[0002] Patent Document 1 (JP 2022-175828 A) discloses a conventional laminated structure, and specifically, a module laminate.

[0003] The module stack includes a plurality of energy storage modules stacked in a first direction and a plurality of current collector plates. The plurality of energy storage modules are stacked in the first direction with the current collector plates interposed therebetween. The module stack has a plurality of detection elements arranged on both sides of the current collector plates interposed between the energy storage modules in a second direction. The second direction is perpendicular to the first direction. The detection elements are sensors that monitor the state of the energy storage modules, and include, for example, temperature detection elements that detect the temperature of the energy storage modules and voltage detection elements that detect the voltage output from the energy storage modules. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-175828 Summary of the Invention [Problem to be solved by the invention]

[0005] A conductive adhesive may be provided between a battery module (power storage module) and a conductive member such as a current collector plate stacked thereon. In such a laminated structure, the conductive adhesive may partially peel off from the battery module or the conductive member. This partial peeling is particularly likely to occur when the laminated structure is enlarged in a direction intersecting the stacking direction.

[0006] Furthermore, in the module stack disclosed in Patent Document 1, if a conductive adhesive is provided between the storage module and the current collector plate, the above-mentioned detection element may not be able to detect partial peeling of the conductive adhesive.

[0007] The present disclosure has been made in consideration of the above-mentioned problems, and aims to provide a laminated structure that can accurately detect partial peeling of a conductive adhesive material. [Means for solving the problem]

[0008] A laminated structure according to one aspect of the present disclosure includes a battery module, a conductive member, a first conductive adhesive, and a first temperature sensor. The conductive member is laminated on the battery module. The first conductive adhesive is disposed between the battery module and the conductive member. The first conductive adhesive bonds the battery module and the conductive member together. The first conductive adhesive electrically connects the battery module and the conductive member together. The first temperature sensor is disposed between the battery module and the conductive member so as to be in contact with the first conductive adhesive.

[0009] In the above configuration, when electricity flows in the stacking direction of the laminated structure, the first conductive adhesive generates heat. If the first conductive adhesive partially peels off from the battery module or the conductive member at this time, the interfacial resistance between the first conductive adhesive and the battery module or the conductive member increases. This causes the first conductive adhesive to generate more heat, increasing its temperature. By detecting this temperature increase with a first temperature sensor in contact with the first conductive adhesive, the occurrence of the partial peeling can be accurately detected.

[0010] The laminated structure according to one aspect of the present disclosure preferably further includes one or more second conductive adhesives. Each of the one or more second conductive adhesives is disposed between the battery module and the conductive member. Each of the one or more second conductive adhesives bonds the battery module and the conductive member to each other. Each of the one or more second conductive adhesives electrically connects the battery module and the conductive member to each other. The first conductive adhesive and the one or more second conductive adhesives are arranged at intervals in a second direction intersecting the first direction. The first direction is the direction in which the battery module and the conductive member are stacked. Of the first conductive adhesive and the one or more second conductive adhesives, the first conductive adhesive is the furthest from the center of the conductive member in the second direction.

[0011] In the above configuration, because the first conductive adhesive is positioned in this manner, it is relatively more likely to partially peel off from the first conductive adhesive and the one or more second conductive adhesives when the laminated structure is bent, etc. By detecting a temperature rise with the first temperature sensor in contact with such first conductive adhesive, it is possible to accurately detect that an abnormality has occurred in the adhesive between the battery module and the conductive member.

[0012] The laminated structure according to one aspect of the present disclosure preferably further includes one or more second temperature sensors. Each of the one or more second temperature sensors is disposed between the battery module and the conductive member so as to contact the first conductive adhesive. The first temperature sensor and the one or more second temperature sensors are arranged at intervals in a third direction intersecting the first direction. The first direction is the direction in which the battery module and the conductive member are stacked. Of the first temperature sensor and the one or more second temperature sensors, the first temperature sensor is the farthest from the center of the conductive member in the third direction.

[0013] In the above configuration, the first temperature sensor is disposed in a portion of the first temperature sensor and the one or more second temperature sensors that is relatively more likely to cause partial peeling of the first conductive adhesive when the laminated structure is bent, etc. By detecting a temperature rise with such a first temperature sensor, partial peeling of the first conductive adhesive can be detected with even greater accuracy.

[0014] The laminated structure according to one aspect of the present disclosure preferably further includes one or more second temperature sensors. Each of the one or more second temperature sensors is disposed between the battery module and the conductive member so as to be in contact with the first conductive adhesive. The first temperature sensor and the one or more second temperature sensors are spaced apart in a third direction intersecting both the first direction and the second direction. The first temperature sensor is the farthest from the center of the conductive member in the third direction among the first temperature sensor and the one or more second temperature sensors.

[0015] The first conductive adhesive is preferably located farthest from the center of the conductive member in the second direction among the first conductive adhesive and the one or more second conductive adhesives. In addition, according to the above configuration, the first temperature sensor is disposed in a portion of the first conductive adhesive that is most susceptible to partial peeling in a third direction intersecting the second direction. Therefore, by detecting a temperature rise with such a first temperature sensor, it is possible to more accurately detect an abnormality in the adhesive between the battery module and the conductive member.

[0016] In the laminated structure according to one aspect of the present disclosure, the first direction, the second direction, and the third direction are preferably perpendicular to one another, and the first conductive adhesive and the one or more second conductive adhesives each extend parallel to the third direction.

[0017] With the above configuration, the first conductive adhesive and one or more second conductive adhesives are arranged in a balanced manner between the battery module and the conductive member, thereby reducing the amount of conductive adhesive used and providing a stronger connection between the battery module and the conductive member. [Effects of the Invention]

[0018] According to the present disclosure, partial peeling of a conductive adhesive can be detected with high accuracy. [Brief explanation of the drawings]

[0019] [Figure 1]1 is a diagram schematically illustrating a vehicle described in one embodiment of the present disclosure. [Figure 2] 1 is a cross-sectional view schematically illustrating a shared panel of a vehicle and an electric storage device including a laminated structure according to an embodiment of the present disclosure. [Figure 3] 1 is a cross-sectional view partially illustrating a power storage device including a stacked structure according to an embodiment of the present disclosure. [Figure 4] 3 is a schematic plan view of a conductive plate as a conductive member, seen from a first direction together with other partial configurations. FIG. [Figure 5] 3 is a schematic plan view of a cooler as a conductive member, seen from a first direction together with other partial configurations. FIG. [Figure 6] 10 is a partial cross-sectional view schematically illustrating a state in which the electricity storage device is deformed when the electricity storage device is pushed up from below. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, a laminated structure according to an embodiment of the present disclosure will be described with reference to the drawings. In the following description of the embodiment, the same or corresponding parts in the drawings will be denoted by the same reference numerals, and the description thereof will not be repeated.

[0021] Fig. 1 is a diagram schematically illustrating a vehicle described in an embodiment of the present disclosure, and Fig. 2 is a cross-sectional view schematically illustrating a share panel of a vehicle and an electricity storage device including a laminated structure according to an embodiment of the present disclosure.

[0022] As shown in Figures 1 and 2, a laminated structure 100 according to the present disclosure can be included in a power storage device 10 that can be mounted on a vehicle 1. In this embodiment, a first direction D1 may be the up-down direction. Figure 2 shows a cross section viewed from a second direction D2 that is perpendicular to the first direction D1. The second direction D2 is a direction that intersects with the first direction D1, and more specifically, is a direction that is perpendicular to the first direction D1.

[0023] The vehicle 1 includes a shared panel 5 and an electricity storage device 10. The shared panel 5 is provided on the bottom of the vehicle 1. The shared panel 5 covers the electricity storage device 10 mounted on the vehicle 1 from below. The shared panel 5 is made of a metal material.

[0024] The power storage device 10 includes a case 50 and a laminated structure 100. The case 50 houses the laminated structure 100. The case 50 includes a bottom surface portion 51, a peripheral wall portion 52, and a top surface portion 53.

[0025] The bottom surface portion 51 is placed on the shear panel 5. The laminated structure 100 is placed on the bottom surface portion 51. The peripheral wall portion 52 stands upward from the bottom surface portion 51. The peripheral wall portion 52 surrounds the entire periphery of the laminated structure 100. The top surface portion 53 covers the peripheral wall portion 52 and the laminated structure 100 from above. The top surface portion 53 is in contact with the laminated structure 100.

[0026] 3 is a cross-sectional view partially illustrating an energy storage device including a stacked structure according to an embodiment of the present disclosure. In FIG. 3, a cross section viewed from a third direction D3 intersecting both the first direction D1 and the second direction D2 is illustrated. Specifically, the third direction D3 is a direction perpendicular to both the first direction D1 and the second direction D2.

[0027] As shown in Figures 2 and 3, the laminated structure 100 includes a battery module 110, a conductive member 120, a first conductive adhesive 130A, a second conductive adhesive 130B, a first temperature sensor 140A, a second temperature sensor 140B, and a third temperature sensor 140C.

[0028] The laminated structure 100 includes a plurality of battery modules 110. The plurality of battery modules 110 are arranged in a first direction D1. Each of the plurality of battery modules 110 is a secondary battery such as a lithium ion battery.

[0029] Each of the plurality of battery modules 110 includes a plurality of electrode plates 111, a plurality of separators 112, a positive terminal electrode 113, and a negative terminal electrode 114. The plurality of electrode plates 111, the positive terminal electrode 113, and the negative terminal electrode 114 are stacked in a first direction D1 with the separators 112 interposed therebetween.

[0030] The electrode plates 111 are disposed between a positive terminal electrode 113 and a negative terminal electrode 114. The electrode plates 111 are, for example, bipolar electrodes. The electrode plates 111 include a current collector 115, a positive electrode layer 116p, and a negative electrode layer 116n.

[0031] The positive terminal electrode 113 is located on one side of the multiple electrode plates 111 in the stacking direction. The positive terminal electrode 113 includes a current collector 115 and a positive electrode layer 116p. The negative terminal electrode 114 is located on the other side of the multiple electrode plates 111 in the stacking direction. The negative terminal electrode 114 includes a current collector 115 and a negative electrode layer 116n.

[0032] Each of the plurality of battery modules further includes a resin sealing body 117 and an exterior body 118. The resin sealing body 117 is provided so as to seal the entire periphery of the plurality of electrode plates 111, the plurality of separators 112, the positive terminal electrode 113, and the negative terminal electrode 114.

[0033] Exterior body 118 seals the plurality of electrode plates 111, the plurality of separators 112, the positive terminal electrode 113, the negative terminal electrode 114, and the resin sealant 117 inside.

[0034] The exterior body 118 includes a first conductive plate 119A and a second conductive plate 119B. The first conductive plate 119A abuts against the current collector 115 of the negative terminal electrode 114. The second conductive plate 119B abuts against the current collector 115 of the negative terminal electrode 114.

[0035] Therefore, in each of the plurality of battery modules 110, the first conductive plate 119A functions as a positive terminal, and the second conductive plate 119B functions as a negative terminal. The outer surface of the first conductive plate 119A faces one side of the battery module 110 in the first direction D1, and the outer surface of the second conductive plate 119B faces the other side of the plurality of battery modules 110 in the first direction D1.

[0036] The conductive member 120 is stacked on the battery module 110. The direction in which the battery module 110 and the conductive member 120 are stacked is a first direction D1.

[0037] Specifically, the laminated structure 100 includes a plurality of conductive members 120. The plurality of conductive members 120 includes a current-carrying plate 121, a plurality of cooling plates 122, a first current collector plate 123, and a second current collector plate .

[0038] The current-carrying plate 121 and the cooling plates 122 are arranged one by one between adjacent battery modules 110 arranged in the first direction D1. The current-carrying plate 121 is made of, for example, a conductive metal material. At least the surfaces of the cooling plates 122 are made of a conductive metal material.

[0039] The first current collecting plate 123 is arranged on one side of the plurality of battery modules 110 in the first direction D1. The second current collecting plate 124 is arranged on the other side of the plurality of battery modules 110 in the first direction D1. The first current collecting plate 123 and the second current collecting plate 124 are made of a conductive metal material. In this embodiment, the first current collecting plate 123 is arranged above the plurality of battery modules 110. The second current collecting plate 124 is arranged below the plurality of battery modules 110.

[0040] Fig. 4 is a schematic plan view of a conductive plate as a conductive member, viewed from a first direction together with some other components. Fig. 5 is a schematic plan view of a cooler as a conductive member, viewed from a first direction together with some other components.

[0041] As shown in Figures 2 to 5, the first conductive adhesive 130A, one or more second conductive adhesives 130B, the first conductive adhesive 130A, the first temperature sensor 140A, the one or more second temperature sensors 140B, and the one or more third temperature sensors 140C are each arranged between the battery module 110 and the conductive member 120.

[0042] In this embodiment, the configurations of the adhesives and temperature sensors between the battery module 110 and the current-carrying plate 121 adjacent to each other in the first direction D1, the configurations of the adhesives and temperature sensors between the battery module 110 and the cooling plate 122, the configurations of the adhesives and temperature sensors between the battery module 110 and the first current collector plate 123, and the configurations of the adhesives and temperature sensors between the battery module 110 and the second current collector plate 124 may be the same as or different from each other. Furthermore, the configurations of the adhesives and temperature sensors provided between one current-carrying plate 121 or one cooling plate 122 and the adjacent battery module 110 on one side may be the same as or different from the configurations of the adhesives and temperature sensors provided between one current-carrying plate 121 or one cooling plate 122 and the adjacent battery module 110 on the other side.

[0043] In the following description, the configuration of each adhesive and each sensor will be described, focusing on the space between one of the battery modules 110 and the conductive member 120 stacked on one side or the other side of the battery module 110 in the first direction D1. That is, unless otherwise specified, the conductive member 120 described below may be any of the current-carrying plate 121, the cooling plate 122, the first current collector plate 123, and the second current collector plate 124.

[0044] As shown in FIG. 3 and other figures, the first conductive adhesive 130A and each of the one or more second conductive adhesives 130B adhere the battery module 110 and the conductive member 120 to each other, specifically, adhere the first conductive plate 119A or the second conductive plate 119B to the conductive member 120 to each other.

[0045] The first conductive adhesive 130A and each of the one or more second conductive adhesives 130B electrically connect the battery module 110 and the conductive member 120 to each other, specifically, electrically connect the first conductive plate 119A or the second conductive plate 119B to the conductive member 120 to each other.

[0046] The first conductive adhesive 130A and the one or more second conductive adhesives 130B are arranged at intervals in the second direction D2. Of the first conductive adhesive 130A and the one or more second conductive adhesives 130B, the first conductive adhesive 130A is the farthest from the center C2 of the conductive member 120 in the second direction D2.

[0047] The first conductive adhesive 130A and each of the one or more second conductive adhesives 130B extend parallel to the third direction D3.

[0048] In this embodiment, between the battery module 110 and the conductive member 120, a plurality of second conductive adhesive materials 130B are disposed.

[0049] A flow path 122F is formed inside the cooling plate 122 (see FIG. 4). The flow path 122F is configured to allow a cooling fluid to flow through. The cooling fluid is, for example, air or water. The flow path 122F extends in a substantially rectangular ring shape when viewed from the first direction D1. Between the battery module 110 and the cooling plate 122, the first conductive adhesive 130A and one or more second conductive adhesives 130B are located on the inner periphery of the flow path 122F, which is formed in a substantially rectangular ring shape when viewed from the first direction D1.

[0050] The first conductive adhesive 130A and the second conductive adhesive 130B are a mixture of resin and metal filler, and therefore have higher electrical resistivity than metal, for example, the conductive portion of the conductive member 120.

[0051] 2 to 5, the first temperature sensor 140A and the one or more second temperature sensors 140B are each disposed so as to be in contact with the first conductive adhesive 130A between the battery module 110 and the conductive member 120. Specifically, the first temperature sensor 140A and the one or more second temperature sensors 140B are each disposed between the first conductive adhesive 130A and the conductive member 120.

[0052] Furthermore, each of the one or more third temperature sensors 140C is arranged so as to be in contact with one of the one or more second conductive adhesives 130B. Specifically, each of the one or more third temperature sensors 140C is arranged between one of the one or more second conductive adhesives 130B and the conductive member 120.

[0053] In this embodiment, a plurality of first temperature sensors 140A and a plurality of second temperature sensors 140B are disposed between the battery module 110 and the conductive member 120. All of the plurality of second temperature sensors 140B are in contact with the first conductive adhesive 130A. However, not all of the second temperature sensors 140B may be in contact with the first conductive adhesive 130A. Only some of the plurality of second temperature sensors 140B may be in contact with the first conductive adhesive 130A. Furthermore, all of the plurality of third temperature sensors 140C are in contact with one of the plurality of second conductive adhesives 130B. However, not all of the third temperature sensors 140C may be in contact with any of the plurality of second conductive adhesives 130B. Only some of the plurality of third temperature sensors 140C may be in contact with the second conductive adhesive 130B.

[0054] The first temperature sensor 140A and the one or more second temperature sensors 140B are arranged at intervals in the third direction D3. Among the first temperature sensor 140A and the one or more second temperature sensors 140B, the first temperature sensor 140A is the farthest from the center C3 of the conductive member 120 in the third direction D3.

[0055] Between the battery module 110 and the cooling plate 122 (see FIG. 5), the first temperature sensor 140A and one or more second temperature sensors 140B are located on the inner periphery of the flow path 122F, which is formed in an approximately rectangular ring shape when viewed from the first direction D1.

[0056] The types of the first temperature sensor 140A, the second temperature sensor 140B, and the third temperature sensor 140C are not particularly limited, and may be any temperature detection element capable of detecting temperature, such as a thermistor. One or more circuit units 150 are provided between the battery module 110 and the conductive member 120. The circuit unit 150 may be, for example, an FPC (flexible printed circuit board). The one or more circuit units 150 are drawn out from between the battery module 110 and the conductive member 120 and connected to a single connector 160. Another control unit (not shown) and each temperature sensor are electrically connected to each other via the connector 160, allowing the control unit to receive signals from each temperature sensor.

[0057] The laminated structure 100 further includes a first insulating plate 170 and a second insulating plate 180. The first insulating plate 170 is disposed between the first current collector plate 123 and the top surface portion 53. The first insulating plate 170 and the first current collector plate 123 are bonded to each other with a structural adhesive (not shown). The second insulating plate 180 is disposed between the second current collector plate 124 and the bottom surface portion 51. The second insulating plate 180 and the bottom surface portion 51 are bonded to each other with a structural adhesive (not shown). The second insulating plate 180 and the second current collector plate 124 are bonded to each other with a structural adhesive.

[0058] Here, a description will be given of the deformation state of the energy storage device 10 when the energy storage device 10 including the stacked structure 100 according to this embodiment is pushed up from one side (lower side) in the first direction D1.

[0059] FIG. 6 is a partial cross-sectional view schematically illustrating a state in which the power storage device is deformed when it is pushed up from below. As shown in FIG. 6, when the power storage device 10 is mounted on a vehicle 1 (see FIG. 1), for example, if vibration is input to the power storage device 10 in a first direction D1 via a shared panel 5, the power storage device 10 is pushed up from below. When the power storage device 10 is pushed up from below, the bottom surface portion 51 of the case 50 is curved upward in a convex shape. As the bottom surface portion 51 curves, the laminated structure 100 also curves upward in a convex shape. As a result, a force acts on the laminated structure 100 in the first direction D1 such that the ends of the battery module 110 and the conductive member 120 separate from each other. Then, as the ends of the battery module 110 and the conductive member 120 separate from each other, the first conductive adhesive 130A may be partially peeled off from the battery module 110 or the conductive member 120.

[0060] Here, when electricity flows in the stacking direction of the laminated structure 100, the first conductive adhesive 130A generates heat. Then, when the first conductive adhesive 130A is partially peeled off from the battery module 110 or the conductive member 120 as described above, the interface resistance between the first conductive adhesive 130A and the battery module 110 or the conductive member 120 increases. This causes the first conductive adhesive 130A to generate more heat, and the temperature of the first conductive adhesive 130A increases.

[0061] As described above, in the laminated structure 100 according to an embodiment of the present disclosure, the first temperature sensor 140A is disposed between the battery module 110 and the conductive member 120 so as to be in contact with the first conductive adhesive 130A. This allows the first temperature sensor 140A, which is in contact with the first conductive adhesive 130A, to detect the temperature increase, thereby enabling accurate detection of the occurrence of the partial peeling.

[0062] Furthermore, in the laminated structure 100 according to one embodiment of the present disclosure, the first conductive adhesive 130A is the farthest from the center C2 of the conductive member 120 in the second direction D2 among the first conductive adhesive 130A and one or more second conductive adhesives 130B.

[0063] Because the first conductive adhesive 130A is positioned as described above, it is relatively more likely to partially peel off when the laminated structure 100 is bent than the first conductive adhesive 130A and the one or more second conductive adhesives 130B (see FIG. 6). By detecting a temperature rise with the first temperature sensor 140A in contact with the first conductive adhesive 130A, it is possible to accurately detect that an abnormality has occurred in the adhesive between the battery module 110 and the conductive member 120.

[0064] Furthermore, in the laminated structure 100 according to one embodiment of the present disclosure, the first temperature sensor 140A is the farthest from the center C3 of the conductive member 120 in the third direction D3 among the first temperature sensor 140A and one or more second temperature sensors 140B.

[0065] In this way, the first temperature sensor 140A is disposed in a portion of the first temperature sensor 140A and the one or more second temperature sensors 140B that is relatively more likely to cause partial peeling of the first conductive adhesive 130A when the laminated structure 100 is bent, etc. By detecting a temperature rise with such a first temperature sensor 140A, partial peeling of the first conductive adhesive 130A can be detected with even greater accuracy.

[0066] Furthermore, in the laminated structure 100 according to one embodiment of the present disclosure, the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other, and the first conductive adhesive 130A and each of the one or more second conductive adhesives 130B extend parallel to the third direction D3.

[0067] With the above configuration, the first conductive adhesive 130A and one or more second conductive adhesives 130B are arranged in a balanced manner between the battery module 110 and the conductive member 120. Therefore, the battery module 110 and the conductive member 120 are more firmly connected to each other while reducing the amount of conductive adhesive used.

[0068] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present disclosure is defined by the claims, not by the description of the above embodiments, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0069] 1 vehicle, 5 share panel, 10 power storage device, 50 case, 51 bottom surface portion, 52 peripheral wall portion, 53 top surface portion, 100 laminated structure, 110 battery module, 111 electrode plate, 112 separator, 113 positive electrode terminal electrode, 114 negative electrode terminal electrode, 115 current collector, 116n negative electrode layer, 116p positive electrode layer, 117 resin sealing body, 118 outer casing, 119A first conductive plate, 119B second conductive plate, 120 conductive member, 121 current-carrying plate, 122 cooling plate, 122F flow path, 123 first current collector plate, 124 second current collector plate, 130A first conductive adhesive, 130B second conductive adhesive, 140A first temperature sensor, 140B second temperature sensor, 140C third temperature sensor, 150 Circuit section, 160 connector, 170 first insulating plate, 180 second insulating plate.

Claims

1. A battery module; a conductive member laminated on the battery module; a first conductive adhesive disposed between the battery module and the conductive member, bonding the battery module and the conductive member to each other and electrically connecting the battery module and the conductive member to each other; a first temperature sensor disposed between the battery module and the conductive member so as to be in contact with the first conductive adhesive.

2. further comprising one or more second conductive adhesives; each of the one or more second conductive adhesives is disposed between the battery module and the conductive member, bonds the battery module and the conductive member to each other, and electrically connects the battery module and the conductive member to each other; the first conductive adhesive and the one or more second conductive adhesives are arranged at intervals in a second direction intersecting a first direction in which the battery module and the conductive member are stacked, The laminated structure according to claim 1 , wherein the first conductive adhesive is the furthest from the center of the conductive member in the second direction among the first conductive adhesive and the one or more second conductive adhesives.

3. further comprising one or more second temperature sensors; each of the one or more second temperature sensors is disposed between the battery module and the conductive member so as to be in contact with the first conductive adhesive; the first temperature sensor and the one or more second temperature sensors are arranged at intervals in a third direction intersecting a first direction in which the battery modules and the conductive members are stacked, The laminated structure according to claim 1 , wherein the first temperature sensor is the farthest from the center of the conductive member in the third direction among the first temperature sensor and the one or more second temperature sensors.

4. further comprising one or more second temperature sensors; each of the one or more second temperature sensors is disposed between the battery module and the conductive member so as to be in contact with the first conductive adhesive; the first temperature sensor and the one or more second temperature sensors are arranged at intervals in a third direction intersecting both the first direction and the second direction; The laminated structure according to claim 2 , wherein the first temperature sensor is the farthest from the center of the conductive member in the third direction among the first temperature sensor and the one or more second temperature sensors.

5. the first direction, the second direction, and the third direction are perpendicular to each other, The laminated structure according to claim 4 , wherein the first conductive adhesive and each of the one or more second conductive adhesives extend parallel to the third direction.

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