JP6493463B2 - Power storage device - Google Patents

Description

  The present invention relates to a power storage device including a power storage element and an electric device connected to the power storage element.

  2. Description of the Related Art Conventionally, a power storage device is known in which an electrical device such as a control board for monitoring a charge state or a discharge state of the power storage element is attached to a chargeable / dischargeable power storage element. For example, Patent Document 1 discloses a power storage device that includes a plurality of power storage elements (unit cells) and in which an electrical device (a wiring board in Patent Document 1) is disposed immediately above the plurality of power storage elements.

JP 2012-59663 A

  However, the above-described conventional power storage device has a problem that the electric device may be affected by heat generated from the power storage element.

  The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a power storage device that can reduce the influence of heat generated from a power storage element on electrical equipment.

  In order to achieve the above object, a power storage device according to one embodiment of the present invention is a power storage device including a power storage element and an electric device connected to the power storage element, and the exterior body in which the power storage element is accommodated A main body, and a lid body having an inner lid portion and an outer lid portion for closing the opening of the exterior body main body in a sealed state, and the electric device is disposed between the inner lid portion and the outer lid portion. ing.

  In order to achieve the above object, a power storage device according to one embodiment of the present invention is a power storage device including a power storage element and an electric device connected to the power storage element, and the power storage element includes an electrode body. And the electric device is disposed separately from the container.

  According to this, in the power storage device, since the electrical device is arranged away from the container of the power storage element, heat generated from the power storage element can be prevented from being transmitted to the electrical device. Therefore, according to the power storage device, it is possible to reduce the influence on the electrical equipment due to the heat generated from the power storage element.

  The power storage element may further include an electrode terminal, and the electric device may be disposed at a position farther from the container than the electrode terminal.

  According to this, in the power storage device, since the electrical device is arranged at a position farther from the container than the electrode terminal of the power storage element, the electrical device is affected by the magnetic field generated by the large current flowing around the electrode terminal. It can suppress receiving.

  In addition, the power storage device includes a lid that closes an opening of an exterior body main body in which the power storage element is accommodated, and the lid includes an outer lid that is disposed outside, and the outer lid. It has an inner cover part arrange | positioned between the said electrical storage elements, and you may decide that the said electric equipment is arrange | positioned between the said inner cover part and the said outer cover part.

  According to this, in the power storage device, the inner lid portion of the lid is disposed between the outer lid portion and the power storage element, and the electric device is disposed between the inner lid portion and the outer lid portion. That is, the inner lid portion is disposed between the electric device and the power storage element. For this reason, the heat | fever emitted from an electrical storage element is interrupted | blocked by the inner cover part. Therefore, according to the power storage device, it is possible to reduce the influence on the electrical equipment due to the heat generated from the power storage element.

  Further, the electric device may be disposed on the outer side than the opening of the exterior body main body in which the power storage element is accommodated.

  According to this, in the power storage device, since the electrical device is disposed outside the opening of the exterior body main body that houses the power storage element, the electrical device is disposed away from the power storage element. For this reason, according to the said electrical storage apparatus, the influence on the electric equipment by the heat emitted from an electrical storage element can be reduced.

  The inner lid portion may be disposed between the electrical device and a safety valve of the power storage element so as to cover the safety valve.

  According to this, the inner lid part is arrange | positioned so that the said safety valve may be covered between an electric equipment and the safety valve of an electrical storage element. That is, a safety valve is provided on a surface (for example, an upper surface) of the electricity storage element on the electrical device side, and an inner lid portion is disposed in a direction (for example, upward) of the safety valve on the electrical device side. For this reason, even when a safety valve is provided on the electrical device side surface of the power storage element, the heat generated from the safety valve is blocked by the inner lid, reducing the influence on the electrical device due to the heat from the safety valve of the power storage device can do.

  The inner lid portion may be disposed so as to face the surface on which the safety valve of the power storage element is disposed and to cover the surface.

  According to this, since the inner lid portion is disposed so as to face the surface where the safety valve of the power storage element is disposed and covers the surface, the gas discharged from the safety valve is blocked by the inner lid portion. In addition, the influence of the gas from the safety valve of the power storage element on the electrical equipment can be reduced.

  The electrical device may be disposed at a position different from a safety valve of the electrical storage element when the direction of the electrical storage element is viewed from the electrical apparatus.

  According to this, when the direction of the electrical storage element is viewed from the electrical device (for example, when viewed from above), the electrical device and the safety valve of the electrical storage element are arranged at different positions. For this reason, the influence on the electric equipment by the gas from the safety valve can be further reduced.

  Furthermore, a regulating member is provided between the inner lid portion and the electricity storage element, and regulates the position of the electricity storage element in the exterior body main body in which the electricity storage element is accommodated. Also good.

  According to this, since the space between the electric device and the electric storage element can be secured by arranging the regulating member between the inner lid portion and the electric storage element, the electric device due to heat generated from the electric storage element Can be further reduced.

  According to the power storage device of the present invention, it is possible to reduce the influence on the electrical equipment due to the heat generated from the power storage element.

It is a perspective view which shows the external appearance of the electrical storage apparatus which concerns on embodiment of this invention. It is a disassembled perspective view which shows each component at the time of decomposing | disassembling the electrical storage apparatus which concerns on embodiment of this invention. It is a perspective view which shows the external appearance of the electrical storage element which concerns on embodiment of this invention. It is a perspective view which shows the state by which the electrical storage element was arrange | positioned inside the exterior body main body which concerns on embodiment of this invention. It is a perspective view which shows the state by which the electrical storage element and the control member are arrange | positioned inside the exterior body main body which concerns on embodiment of this invention. It is a perspective view which shows the state by which the electrical storage element, the control member, and the bus bar are arrange | positioned inside the exterior body main body which concerns on embodiment of this invention. It is a perspective view which shows the state by which the inner cover part of the cover body is arrange | positioned at the exterior body main body which concerns on embodiment of this invention. It is a perspective view which shows the state by which the electric equipment was arrange | positioned at the inner cover part of the cover which concerns on embodiment of this invention. It is a perspective view which shows the state by which an outer cover part is arrange | positioned at the inner cover part of the cover which concerns on embodiment of this invention. It is a top view which shows the positional relationship of the electric equipment which concerns on the modification of embodiment of this invention, and the safety valve of an electrical storage element.

  Hereinafter, a power storage device according to an embodiment of the present invention will be described with reference to the drawings. Each of the embodiments described below shows a preferred specific example of the present invention. Numerical values, shapes, materials, constituent elements, arrangement positions and connection forms of constituent elements, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements.

(Embodiment)
First, the configuration of the power storage device 10 will be described.

  FIG. 1 is a perspective view showing an external appearance of a power storage device 10 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing each component when the power storage device 10 according to the embodiment of the present invention is disassembled.

  In these figures, the Z-axis direction is shown as the vertical direction, and the Z-axis direction will be described below as the vertical direction. However, depending on the usage, the Z-axis direction may not be the vertical direction. The axial direction is not limited to the vertical direction. The same applies to the following drawings.

  The power storage device 10 is a device that can charge electricity from the outside and discharge electricity to the outside. As shown in these drawings, the power storage device 10 includes an exterior body 100, and a plurality of electrical storage elements 400 accommodated in the exterior body 100, a regulating member 500, a bus bar 600, and an electric device 700.

  The exterior body 100 is a rectangular (box-shaped) member that constitutes the exterior body of the power storage device 10. The exterior body 100 arranges the plurality of power storage elements 400, the electric equipment 700, and the like at predetermined positions, and protects the plurality of power storage elements 400, the electric equipment 700, and the like from an impact and the like. Moreover, the exterior body 100 is made of an insulating material such as a resin, for example, and prevents the power storage element 400, the electric device 700, and the like from coming into contact with an external metal member or the like.

  Here, the exterior body 100 includes an exterior body main body 200 and a lid body 300. The exterior body main body 200 is a bottomed rectangular cylindrical member constituting the body of the exterior body 100. The lid 300 is a member that constitutes the lid of the exterior body 100 and is a flat rectangular member that closes the opening 210 of the exterior body main body 200.

  The lid 300 has an outer lid part 310 and an inner lid part 320, and the inner lid part 320 is provided with a positive external terminal 321 and a negative external terminal 322. That is, the power storage device 10 charges electricity from the outside via the positive electrode external terminal 321 and the negative electrode external terminal 322, and discharges electricity to the outside.

  Specifically, a plurality of power storage elements 400, a regulating member 500, and a bus bar 600 are arranged in this order on the inside of the exterior body main body 200, and the opening 210 of the exterior body main body 200 is closed by the inner lid portion 320. Thus, the stability of the power storage device 10 is improved by arranging the plurality of power storage elements 400 that are heavy objects at the bottom.

  In addition, electric device 700 is arranged on inner lid portion 320, and outer lid portion 310 is arranged on inner lid portion 320 so as to cover electric device 700. As described above, by assembling the electrical component on the upper portion, the assembling property and the maintenance property of the power storage device 10 are improved. The specific configuration of each component described above will be described in detail below.

  First, the power storage element 400 will be described in detail. FIG. 3 is a perspective view showing an appearance of power storage element 400 according to the embodiment of the present invention.

  The power storage element 400 is a secondary battery that can charge and discharge electricity, and more specifically, is a non-aqueous electrolyte secondary battery such as a lithium ion secondary battery. In addition, the electrical storage element 400 is not limited to a nonaqueous electrolyte secondary battery, A secondary battery other than a nonaqueous electrolyte secondary battery may be sufficient, and a capacitor may be sufficient as it.

  As shown in the figure, the power storage device 400 includes a container 410, a positive electrode terminal 420, and a negative electrode terminal 430. Note that a positive electrode current collector, a negative electrode current collector, an electrode body (power generation element), an electrolytic solution, and the like are accommodated inside the container 410, but these are not illustrated.

  The container 410 includes a container body 411 having a rectangular cylindrical shape and a bottom, and a container lid portion 412 that is a plate-like member that closes the opening of the container body 411. Further, the container 410 can be sealed by welding the container lid portion 412 and the container main body 411 after the electrode body and the like are accommodated therein. In addition, although the material of the container cover part 412 and the container main body 411 is not specifically limited, For example, it is preferable that they are weldable metals, such as stainless steel.

  In addition, a circular safety valve 413 is provided on the container lid portion 412 of the container 410. Here, the safety valve 413 is a safety valve that releases the pressure inside the container 410 by opening the sealed state of the container 410 due to the increase in pressure inside the container 410. The shape of the safety valve 413 is not limited to a circular shape. Further, in the present embodiment, the safety valve 413 is provided in the container lid portion 412, but a configuration in which the safety valve 413 is provided in the container main body 411 may be used.

  In addition, the electrode body accommodated in the container 410 may have a wound shape formed by winding a negative electrode, a positive electrode, and a separator, or may have a shape in which flat plate electrodes are stacked. As the positive electrode active material or the negative electrode active material used for the electrode body, a known material can be appropriately used as long as the performance of the power storage element 400 is not impaired. Further, as the electrolytic solution (nonaqueous electrolytic solution) sealed in the container 410, there is no particular limitation on the type thereof as long as the performance of the power storage element 400 is not impaired, and various types can be selected.

  The positive electrode terminal 420 is an electrode terminal electrically connected to the positive electrode of the electrode body, and the negative electrode terminal 430 is an electrode terminal electrically connected to the negative electrode of the electrode body, both of which are attached to the container lid portion 412. It has been. That is, the positive electrode terminal 420 and the negative electrode terminal 430 lead electricity stored in the electrode body to the external space of the power storage element 400, and introduce electricity into the internal space of the power storage element 400 in order to store electricity in the electrode body. This is a metal electrode terminal.

  Specifically, the positive electrode terminal 420 of the power storage element 400 arranged on the positive electrode external terminal 321 side among the plurality of power storage elements 400 provided in the power storage device 10 is connected to the positive electrode external terminal 321, and the negative electrode of the power storage element 400 Terminal 430 is connected to positive electrode terminal 420 of adjacent power storage element 400. Similarly, among the plurality of power storage elements 400, the negative electrode terminal 430 of the power storage element 400 arranged on the negative electrode external terminal 322 side is connected to the negative electrode external terminal 322, and the positive electrode terminal 420 of the power storage element 400 is connected to the adjacent power storage element 400. The negative electrode terminal 430 of the element 400 is connected. Further, the positive electrode terminal 420 or the negative electrode terminal 430 of the other power storage element 400 is connected to the negative electrode terminal 430 or the positive electrode terminal 420 of the adjacent power storage element 400.

  Next, the exterior body main body 200, the regulating member 500, and the bus bar 600 of the exterior body 100 will be described in detail.

  FIG. 4 is a perspective view showing a state in which power storage element 400 is arranged inside exterior body main body 200 according to the embodiment of the present invention. FIG. 5 is a perspective view showing a state in which the power storage element 400 and the regulating member 500 are arranged inside the exterior body main body 200 according to the embodiment of the present invention. FIG. 6 is a perspective view showing a state in which power storage element 400, regulating member 500, and bus bar 600 are arranged inside exterior body main body 200 according to the embodiment of the present invention.

  As shown in these drawings, the exterior body main body 200 is a body portion of the exterior body 100, and a plurality of power storage elements 400, a regulating member 500, and a bus bar 600 are accommodated inward. Specifically, the exterior body main body 200 is a bottomed rectangular tube-shaped member that includes a rectangular bottom surface and four side surfaces that cover the four sides of the bottom surface and has an opening 210 formed in the upper portion. Thus, the plurality of power storage elements 400, the regulating member 500, and the bus bar 600 are inserted and accommodated.

  In the present embodiment, power storage element 400 is housed in exterior body main body 200 such that container lid portion 412 faces upward. That is, the electricity storage element 400 is accommodated in the exterior body 200 so that the safety valve 413 faces upward. In the present embodiment, the four power storage elements 400 are accommodated in the exterior body 200, but the number of electrical storage elements 400 accommodated in the exterior body 200 is not limited.

  In addition, as shown in FIG. 5, the regulating member 500 is disposed above the plurality of power storage elements 400. That is, the regulating member 500 is a flat rectangular member that is disposed between the inner lid portion 320 and the plurality of power storage elements 400. The regulating member 500 is made of an insulating material such as resin.

  Here, the regulating member 500 is a member that regulates the position of the plurality of power storage elements 400 in the exterior body main body 200. Specifically, the regulating member 500 is fitted inside the exterior body main body 200 and presses the plurality of power storage elements 400 from above, thereby fixing the plurality of power storage elements 400 to the exterior body main body 200.

  In addition, as shown in FIG. 6, the bus bar 600 is disposed above the regulating member 500. That is, the bus bar 600 is a member disposed between the inner lid portion 320 and the plurality of power storage elements 400. The bus bar 600 is a conductive member such as a metal, and electrically connects the power storage elements 400 included in the plurality of power storage elements 400. Specifically, the bus bar 600 connects the positive terminal 420 or the negative terminal 430 of one power storage element 400 and the negative terminal 430 or the positive terminal 420 of another power storage element 400 in the adjacent power storage element 400.

  Next, the outer lid portion 310 and the inner lid portion 320 of the lid body 300 of the exterior body 100 and the electric device 700 will be described in detail.

  FIG. 7 is a perspective view showing a state where the inner lid portion 320 of the lid body 300 is arranged on the exterior body main body 200 according to the embodiment of the present invention. FIG. 8 is a perspective view showing a state where electric device 700 is arranged in inner lid portion 320 of lid body 300 according to the embodiment of the present invention. FIG. 9 is a perspective view showing a state in which the outer lid portion 310 is disposed on the inner lid portion 320 of the lid body 300 according to the embodiment of the present invention.

  As shown in these drawings, the inner lid portion 320 is a member disposed between the outer lid portion 310 and the plurality of power storage elements 400, and the electric device 700 is placed thereon. That is, the inner lid portion 320 is disposed between the electric device 700 and the plurality of power storage elements 400. Specifically, the inner lid portion 320 closes the opening 210 of the outer body main body 200 in a state where the plurality of power storage elements 400, the regulating member 500, and the bus bar 600 are accommodated inside the outer body main body 200. Be placed. Then, the electric device 700 is placed on the inner lid portion 320. As described above, the inner lid portion 320 functions as a lid of the exterior body main body 200 and also functions as a mounting table for the electric device 700.

  In addition, the inner lid portion 320 is disposed between the electric device 700 and at least one safety valve 413 among the safety valves 413 included in the plurality of power storage elements 400 so as to cover the safety valve 413. In the present embodiment, inner lid portion 320 is arranged between electric device 700 and all safety valves 413 included in the plurality of power storage elements 400 so as to cover all safety valves 413 included in the plurality of power storage elements 400. ing.

  Specifically, the inner lid portion 320 is disposed so as to face the upper surface of the container lid portion 412 that is the surface on which the safety valves 413 of the plurality of power storage elements 400 are disposed, and to cover the surface. That is, the inner lid portion 320 is disposed so as to cover the upper surfaces of the container lid portions 412 of all the power storage elements 400. The inner lid portion 320 is not limited to be disposed so as to cover the upper surfaces of the container lid portions 412 of all the power storage elements 400, and covers the upper surfaces of the container lid portions 412 of some of the power storage elements 400. It does not matter even if it is arranged in. That is, the inner lid part 320 may be arranged so as to cover a part of the safety valves 413.

  The electrical device 700 is an electronic and electrical device that can acquire, monitor, and control the states of the plurality of power storage elements 400, and is connected to the plurality of power storage elements 400. Specifically, the electric device 700 is a control board for monitoring the charging state and discharging state (battery state such as voltage and temperature) of the plurality of power storage elements 400. The control board is provided with a control circuit (not shown) for performing the monitoring, controlling the ON / OFF of the relay, and communicating with other devices, for example.

  In addition, the electric device 700 is disposed outside the opening 210 of the exterior body main body 200. That is, the electric device 700 is disposed above the opening surface of the exterior body main body 200. Specifically, the electric device 700 is disposed between the inner lid portion 320 and the outer lid portion 310. That is, the electric device 700 is sandwiched between the inner lid part 320 and the outer lid part 310 by being sandwiched between the inner lid part 320 and the outer lid part 310, and Arranged to be protected.

  Further, the inner lid part 320 is disposed above the container lid part 412, and the electric device 700 is disposed above the inner lid part 320. That is, the electric device 700 is arranged separately from the container 410 of the power storage element 400 so as to provide a gap between the electrical device 700 and the container 410 of the power storage element 400. In addition, the electric device 700 is disposed at a position farther from the container 410 than the positive electrode terminal 420 and the negative electrode terminal 430 that are electrode terminals of the power storage element 400. That is, the electric device 700 is disposed above the upper ends of the positive terminal 420 and the negative terminal 430.

  In addition, the outer lid portion 310 is a member disposed outside the lid body 300. That is, the outer lid portion 310 is a plate-like member that forms the upper portion of the lid body 300, and the inner lid portion 320 covers the electric device 700 in a state where the electric device 700 is disposed on the inner lid portion 320. The electrical device 700 is protected by being connected to.

  As described above, according to power storage device 10 according to the embodiment of the present invention, electric device 700 is arranged separately from container 410 of power storage element 400, so that heat generated from power storage element 400 is electrically generated. Propagation to the device 700 can be suppressed. Therefore, according to the power storage device 10, it is possible to reduce the influence on the electric device 700 due to the heat generated from the power storage element 400.

  In addition, since the electric device 700 is disposed at a position farther from the container 410 than the positive electrode terminal 420 and the negative electrode terminal 430 that are electrode terminals of the power storage element 400, the electric device 700 generates a magnetic field generated by a large current flowing around the electrode terminal. It is possible to suppress the electric device 700 from being affected.

  In addition, the inner lid portion 320 of the lid body 300 is disposed between the outer lid portion 310 and the plurality of power storage elements 400, and the electric device 700 is disposed between the inner lid portion 320 and the outer lid portion 310. That is, the inner lid portion 320 is disposed between the electric device 700 and the plurality of power storage elements 400. For this reason, the heat generated from the power storage element 400 is blocked by the inner lid portion 320. Therefore, according to the power storage device 10, it is possible to reduce the influence on the electric device 700 due to the heat generated from the power storage element 400.

  In addition, the electric device 700 is disposed away from the power storage element 400 because it is disposed outside the opening 210 of the exterior body main body 200 that houses the power storage element 400. For this reason, according to the electrical storage apparatus 10, the influence on the electric equipment 700 by the heat emitted from the electrical storage element 400 can be reduced.

  Further, the inner lid portion 320 is disposed between the electric device 700 and the safety valve 413 of the power storage element 400 so as to cover the safety valve 413. That is, the safety valve 413 is provided on the surface (upper surface) of the electric storage element 400 on the electric device 700 side, and the inner lid portion 320 is disposed in the direction (upward) of the safety valve 413 on the electric device 700 side. For this reason, even when the safety valve 413 is provided on the surface of the electric storage element 400 on the electric device 700 side, the heat generated from the safety valve 413 is blocked by the inner lid portion 320, and the electricity generated by the heat from the safety valve 413 of the electric storage element 400 The influence on the device 700 can be reduced.

  Further, since the inner lid portion 320 is disposed so as to cover the surface of the container lid portion 412 so as to face the surface of the container lid portion 412 on which the safety valve 413 of the power storage element 400 is disposed, The heat is blocked by the inner lid portion 320, and the influence of the heat from the safety valve 413 of the power storage element 400 on the electric device 700 can be reduced.

  In addition, by arranging the regulating member 500 and the bus bar 600 between the inner lid portion 320 and the plurality of power storage elements 400, a space between the electric device 700 and the power storage element 400 (between the electric device 700 and the safety valve 413). Therefore, it is possible to further reduce the influence on the electric device 700 due to heat generated from the power storage element 400 (heat generated from the safety valve 413).

  In addition, the influence of the heat generated from the power storage element 400 (heat generated from the safety valve 413) on the control board for monitoring the charging state or the discharging state of the plurality of power storage elements 400, which is the electrical device 700, is reduced. be able to.

(Modification)
Next, a modification of the above embodiment will be described. FIG. 10 is a plan view showing a positional relationship between electric device 700 and safety valve 413 of power storage element 400 according to a modification of the embodiment of the present invention. Specifically, this figure is a view of the electric device 700 and the safety valve 413 of the power storage element 400 when the electric device 700 is disposed in the inner lid part 320 as viewed from above.

  In the above embodiment, among the safety valves 413 included in the plurality of power storage elements 400, there is the safety valve 413 arranged immediately below the electric device 700. However, in this modification, as shown in FIG. The safety valve 413 included in the power storage element 400 is disposed at a position away from the electrical device 700 so as to avoid a position directly below the electrical device 700. That is, the electric device 700 is arranged at a position different from the safety valve 413 included in the plurality of power storage elements 400 when the direction of the plurality of power storage elements 400 is viewed from the electric device 700 (when viewed from above).

  As described above, according to the power storage device according to the modification of the embodiment of the present invention, when viewing the direction of power storage element 400 from electrical device 700 (when viewed from above), electrical device 700 and power storage element 400 safety valves 413 are arranged at different positions. For this reason, the influence on the electric equipment 700 by the heat from the safety valve 413 can be further reduced.

  The power storage device according to the embodiment of the present invention and the modification thereof has been described above, but the present invention is not limited to the above-described embodiment and the modification. In other words, it should be considered that the embodiment and its modification disclosed this time are illustrative and not restrictive in all respects. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  For example, although the power storage device 10 includes the plurality of power storage elements 400 in the above embodiment and the modifications thereof, the power storage device 10 may include only one power storage element 400. .

  Further, in the above embodiment and its modification, the electric device 700 is a control board. However, the electric device 700 may be a relay that interrupts charging of the storage element 400 or discharging from the storage element 400, charging Or a shunt resistor for monitoring the discharge state with current (voltage).

  Moreover, in the said embodiment and its modification, although all the electrical storage elements 400 arrange | positioned inside the exterior body 100 decided to have the safety valve 413, the electrical storage element 400 which does not have the safety valve 413 is used. It may be included.

  Moreover, in the said embodiment and its modification, although the regulating member 500 and the bus bar 600 decided to be arrange | positioned between the inner cover part 320 and the electrical storage element 400, the arrangement position of the regulating member 500 or the bus bar 600 is The position is not limited to the above. Further, the power storage device 10 may directly fix the power storage element 400 to the exterior body 100 without having the regulating member 500.

  The present invention can be applied to an electricity storage device such as a lithium ion secondary battery, an electricity storage device including an electrical device, and the like.

DESCRIPTION OF SYMBOLS 10 Power storage device 100 Exterior body 200 Exterior body main body 210 Opening part 300 Cover body 310 Outer cover part 320 Inner cover part 321 Positive electrode external terminal 322 Negative electrode external terminal 400 Power storage element 410 Container 411 Container body 412 Container cover part 413 Safety valve 420 Positive electrode terminal 430 Negative electrode terminal 500 Regulating member 600 Bus bar 700 Electric equipment

Claims (7)

A power storage device comprising a power storage element and an electrical device connected to the power storage element,
An exterior body main body in which the electricity storage element is accommodated, a lid body having an inner lid portion and an outer lid portion for closing the opening of the exterior body body in a sealed state, and a bus bar connected to the electricity storage element,
The electrical device is disposed between the inner lid portion and the outer lid portion,
The bus bar is disposed between the power storage element and the inner lid part. A power storage device comprising a power storage element and an electrical device connected to the power storage element,
An exterior body main body in which the electricity storage element is accommodated, and a lid body having an inner lid portion and an outer lid portion for closing the opening of the exterior body body in a sealed state,
The electrical device has a side where electrode terminals provided on each of the plurality of power storage elements are arranged with respect to the plurality of power storage elements included in the power storage device, and the inner lid portion and the outer lid portion. Is placed between and
An electrical storage device, wherein an external terminal is attached to the inner lid portion. A regulation member that is accommodated in the exterior body body and regulates the position of the electricity storage element in the exterior body body;
The electrical device is arranged so as to cover the periphery with the inner lid portion and the outer lid portion,
The inner lid portion and the regulating member are disposed between the electric device and the power storage element,
A bus bar connected to the power storage element is disposed on the regulating member,
The power storage device according to claim 1, wherein an external terminal is attached to the inner lid portion. The power storage device according to any one of claims 1 to 3, wherein the electrical device is disposed outside an opening of the exterior body. The power storage device according to any one of claims 1 to 4, wherein the inner lid portion is disposed so as to cover the safety valve between the electric device and a safety valve included in the power storage element. The power storage device according to claim 1, wherein the inner lid portion is disposed so as to face a surface on which the safety valve of the power storage element is disposed and cover the surface. The electrical device is disposed at a position different from safety valves included in all of the electrical storage elements included in the electrical storage device when the direction of the electrical storage element is viewed from the electrical device. The power storage device according to item.

Images