JP2011014378A - Fixing frame for unit power accumulator and battery pack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing frame capable of easily assembling an outer film power accumulator cell in a comparatively simple structure.SOLUTION: The fixing frame for a unit power accumulator for fixing an outer film power accumulator cell of which the platy battery element is covered by a film includes: a frame 1 surrounding an outer circumferential side face of an outer film power accumulator cell; a first and second supporting tools 10, 20 which are arranged on an inner frame 6 of the frame 1 and have, on a surface side of the frame 1, a supporting part for supporting the outer film power accumulator cell; and a third and fourth supporting tools 30, 40 which are arranged on the inner frame 6 of the frame 1 and have, on a rear face side of the frame 1, a supporting part for supporting the outer film power accumulator cell.

Description

  The present invention relates to a single power storage unit fixing frame for fixing an outer film power storage unit cell in which one cell constituting a storage battery such as an electric double layer capacitor or a lithium ion secondary battery (capacitor) is covered with a film, and to the outer casing The present invention relates to a battery pack in which a plurality of single electric storage bodies to which film electric storage battery cells are fixed are stacked and electrically connected to each other.

  An electric double layer capacitor (hereinafter referred to as EDLC) is a storage battery that utilizes the principle of storing electricity by physically adsorbing anions and cations in an electrolyte on the positive electrode and negative electrode surfaces of a polarizable electrode. On the other hand, a lithium ion capacitor (hereinafter referred to as LIC) is a storage battery that uses the same principle as the EDLC described above and uses the principle of storing electricity by occluding lithium ions on the negative electrode surface of the polarizable electrode.

  For example, as shown in FIG. 11, these EDLC and LIC sandwich one cell 101 constituting a storage battery between two laminate films 102, weld a portion where these two laminate films 102 overlap, A plurality of outer film power storage cells 100 that are completely covered and sealed are provided. By sealing with the film 102 in this way, moisture can be prevented from entering inside, and deterioration of the characteristics of the storage battery itself and generation of gas can be suppressed.

  A laminate film (hereinafter referred to as an aluminum laminate film) 102 is a film in which a metal film such as aluminum and a resin film such as polypropylene and polyethylene are overlapped. The aluminum laminate film 102 itself is easily deformed, and the sealing portion 102a of the aluminum laminate film 102 produced by welding is also easily deformed.

  The cell 101 has a flat plate shape and is formed in a rectangular shape. A band-like positive electrode terminal 103 is drawn out from one short side portion 101a of the cell 101, and a band-like negative electrode terminal 104 is drawn out from the other short side portion 101b. Note that the aluminum laminate film 102 has a rectangular shape larger than the cell 101 and can cover the entire cell 101.

  The exterior film power storage cell 100 is used in a state of being incorporated in a device. However, since the exterior film power storage cell 100 has a special shape and is easily deformed, it is difficult to handle and it is difficult to fix it directly to the device. Furthermore, if the polarity of the exterior film power storage cell 100 is incorporated into a device in an incorrect state, there is a possibility that a predetermined performance as a storage battery cannot be expressed. In particular, the LIC already has a potential when it is incorporated into a device, and it is necessary to pay sufficient attention to its handling.

  Accordingly, various fixed frames for a single power storage unit have been developed that have improved rigidity and ease of handling by being assembled to an exterior film power storage unit cell. As an example of a fixed frame for a single power storage unit, Patent Document 1 discloses a cell case that includes a case body and a frame, which is a case that houses a film-clad battery. A through hole is formed in the side portion of the cell case, a plurality of cell cases containing film-clad batteries are stacked in the width direction to form a battery cell group, and a rod is passed through the through hole formed in each cell case, A battery pack in which both ends of the rod are fixed with nuts is also disclosed.

  As another example of the single power storage unit fixing frame, Patent Document 2 discloses a cell case that is formed in a frame shape that surrounds the entire periphery of the exterior film and that holds the outer periphery of the exterior film. A fixing member having an insertion portion that can be inserted into the discharge port formed in the cell case and a support portion that supports the insertion portion is also disclosed. The fixing member has a function of fixing a plurality of cell cases in a stacked state.

JP 2006-172882 A (see paragraphs [0015], [0016], [FIG. 2], [FIG. 3], etc.) JP 2006-236605 A (see paragraphs [0017], [0020], [0024], [0025], [FIG. 1], [FIG. 5], etc.)

  However, the cell case disclosed in Patent Document 1 is composed of two members, a case main body and a frame body, which may reduce the yield. In patent document 2, the sealing part of the exterior film was inserted in the groove | channel formed in the inner wall part of a cell case, and the assembly | attachment operation | work was complicated.

  Accordingly, the present invention has been proposed in view of the above-described problems, and provides a single storage battery fixing frame and an assembled battery in which an exterior film power storage cell can be easily assembled with a relatively simple configuration. For the purpose.

The fixed frame for a single electric storage body according to the first invention for solving the above-mentioned problem is as follows.
A fixing frame for a single power storage unit for fixing an exterior film power storage unit cell in which a flat battery element is covered with a film,
A frame surrounding the outer peripheral side surface of the exterior film power storage cell;
A surface-side cell support that is provided on an inner frame of the frame body and has a cell support portion on the surface side of the frame body that supports the exterior film electricity storage cell;
It is provided with the back surface side cell support which is provided in the inner frame of the said frame, and has the cell support part which supports the said exterior film electrical storage body cell in the back surface side of the said frame.

The fixed frame for a single electric storage body according to the second invention for solving the above-described problem is as follows.
A fixing frame for a single electric storage body according to the first invention,
The inner frame of the frame is rectangular,
The surface-side cell support is respectively disposed at a corner on one side in the longitudinal direction of the inner frame,
The back surface side cell support is respectively disposed at a corner on the other side in the longitudinal direction of the inner frame.

A fixing frame for a single electric storage body according to a third invention for solving the above-described problem is as follows.
A fixing frame for a single electric storage body according to a second invention,
The front surface side cell support has a protruding portion that protrudes toward the back side of the frame,
The back surface side cell support has a projecting portion that projects to the front surface side of the frame.

A fixing frame for a single electric storage body according to a fourth invention for solving the above-described problem is as follows.
A fixing frame for a single electric storage body according to the first invention,
The exterior film power storage cell has two strip-shaped electrode terminal portions connected to the battery element and extending to the outside of the film,
A surface-side electrode support that is provided on the frame and has an electrode support that supports the electrode terminal portion on the surface of the frame;
It is provided with the back surface side electrode support tool which is provided in the said frame and has the electrode support part which supports the said electrode terminal part in the back surface side of the said frame.

A fixing frame for a single electric storage body according to a fifth invention for solving the above-described problem is as follows.
A fixed frame for a single electric storage body according to a fourth invention,
The inner frame of the frame is rectangular,
The surface-side electrode support is disposed on one side in the longitudinal direction of the inner frame,
The back electrode support is disposed on the other side in the longitudinal direction of the inner frame.

A fixing frame for a single electric storage body according to a sixth invention for solving the above-described problem is as follows.
A fixed frame for a single electric storage body according to a fifth invention,
The surface-side electrode support has a protruding portion that protrudes toward the back side of the frame;
The back surface side electrode support has a projecting portion that projects to the front surface side of the frame.

The fixed frame for a single electric storage body according to the seventh invention for solving the above-described problem is
A fixed frame for a single electric storage body according to a sixth invention,
Fixing holes are respectively formed in side end portions of the front surface side electrode support and the back surface side electrode support.

A fixing frame for a single electric storage body according to an eighth invention for solving the above-described problem is
A fixed frame for a single electric storage body according to a seventh invention,
The side end portions of the front surface side electrode support and the back surface side electrode support are arranged inside the side end portions in the longitudinal direction of the frame body.

The fixed frame for a single electric storage body according to the ninth invention for solving the above-described problem is
A fixed frame for a single electric storage body according to an eighth invention,
The inner frame of the frame has a horizontal frame plate part,
The width of the central portion in the longitudinal direction of the horizontal frame plate portion is narrower than the end portion side of the horizontal frame plate portion.

The fixed frame for a single electric storage body according to the tenth invention for solving the above-described problem is
A fixed frame for a single electric storage body according to a ninth invention,
The lower horizontal frame plate portion is provided with an inclined portion at a longitudinal center portion thereof.

A fixing frame for a single electric storage body according to an eleventh invention for solving the above-described problem is
A fixed frame for a single electric storage body according to a tenth invention,
It is provided with the nail | claw part which is provided in the said frame and can be connected with an adjacent frame.

An assembled battery according to a twelfth invention for solving the above-described problem is
The outer film power storage cell is disposed on an inner frame of a single power storage battery fixing frame according to a seventh aspect of the invention, the electrode terminal portion of the outer film power storage cell is bent, and the front surface side electrode support and the rear surface side A convex single power storage unit that is made to stand on an electrode support;
The outer film power storage cell is disposed in an inner frame of a single power storage battery fixing frame according to a seventh aspect of the invention, and the electrode terminal portion of the outer film power storage cell is supported by the front electrode support and the back electrode support. A concave single power storage unit folded along the side end of the tool,
The convex single power storage unit and the concave single power storage unit are alternately arranged, and the front side and the back side of the convex single power storage unit and the concave single power storage unit are arranged adjacent to each other. ,
The electrode terminal portion of the convex single power storage unit and the electrode terminal of the concave single power storage unit are fixed to a side end portion of the electrode support.

  According to the fixed frame for a single electric storage body according to the present invention, the structure is relatively simple, and the manufacturing cost can be reduced. Moreover, the exterior film electrical storage cell can be assembled | attached to the said frame only by performing the operation | work which inserts and rotates an exterior film electrical storage cell in the center part of a frame. That is, the exterior film power storage cell can be easily assembled to the frame.

  According to the assembled battery according to the present invention, an assembled battery in which a plurality of single electric storage bodies are connected in series simply by arranging a convex single electric storage body and a concave single electric storage body with their front and back surfaces adjacent to each other. Easy to produce.

It is the perspective view of the fixed frame for single electrical storage bodies which concerns on one Embodiment of this invention, arrange | positioned the lower horizontal frame board part of a frame body upwards in Fig.1 (a), and looked at the back surface from the one side part side. FIG. 1 (b) shows a perspective view as seen from the other side. FIG. 2A is a perspective view of a fixed frame for a single electric storage body, FIG. 2A is a perspective view in which the upper horizontal frame plate portion of the frame body is arranged upward, and the surface is viewed from one side, FIG. The perspective which looked at it from the other side part side is shown. It is the schematic of the fixed frame for single electrical storage bodies, the rear surface which arrange | positioned the lower horizontal frame board part of the frame to the upper part in Fig.3 (a), the side surface in FIG.3 (b), and the frame in FIG. The front which arrange | positioned the lower horizontal frame board part below is shown. It is a figure which the IV-IV arrow line in FIG.3 (c) shows. It is the schematic of an exterior film electrical storage body cell, FIG. 5 (a) shows the plane, FIG.5 (b) shows the plane when assembling | attaching to the fixed frame for single electrical storage bodies. It is a figure for demonstrating the assembly | attachment of the exterior film electrical storage body cell to the fixed frame for single electrical storage bodies, and the state before attaching an exterior film electrical storage body cell to the fixed frame for single electrical storage bodies in FIG. 6 (b) shows a state in which the outer film power storage cell is inserted into the frame of the single power storage unit fixing frame, and FIG. 6 (c) shows a state in which the outer film power storage cell is assembled to the single power storage unit fixing frame. . It is the figure which expanded one edge part of the fixed frame for single electrical storage bodies, the figure which looked at expansion of the enclosure line VII in FIG.6 (c) from the back surface in FIG.7 (c), FIG.7 (b) is FIG. The enlargement of the surrounding line (b) in (a) is shown. It is a figure for demonstrating the case where three single electrical storage bodies are connected, the state before connecting the 3 single electrical storage bodies in Fig.8 (a), and two single electrical storage bodies in FIG.8 (b). FIG. 8 (c) shows a state where three single power storage units are connected. It is a figure for demonstrating the case where three unit electrical storage bodies are connected, FIG. 9 (a) shows one side surface of the three unit electrical storage units shown in FIG. 8 (a), and FIG. FIG. 9C shows one side of the assembled battery and one unit battery shown in FIG. 9B, and FIG. 9C shows one side of the assembled battery shown in FIG. It is a perspective view of the assembled battery which connected 40 single electrical storage bodies. It is a perspective view of an exterior film electrical storage cell.

  One embodiment of a fixed frame for a single power storage unit and an assembled battery according to the present invention will be specifically described with reference to FIGS.

  First, a single power storage unit is a battery in which an exterior film power storage cell in which one cell constituting a battery pack for storing and outputting electric energy is wrapped with a film is assembled and fixed to a single power storage unit fixing frame. An assembled battery is produced by connecting a plurality of single power storage units. Examples of the assembled battery include an electric double layer capacitor and a lithium ion secondary battery.

  As shown in FIG. 5 (a), the exterior film power storage cell 100 has one cell 101 sandwiched between two laminate films 102 (the front side and the back side of FIG. 5 (a)). A portion where the film 102 overlaps is welded and packaged. The cell 101 is a battery element in which a positive electrode and a negative electrode are disposed on both sides of a separator, and the electrode is impregnated with an electrolytic solution. Examples of the laminate film 102 include a film in which a metal film such as aluminum and a resin film such as polypropylene and polyethylene are stacked. The above-described welding is performed in a state where the inside of the film and the inside of the cell (the inside of the capacitor) are depressurized to be in a vacuum state. Thereby, the inside of the exterior film electrical storage cell 100 is packaged airtightly.

  The cell 101 has a flat plate shape and is formed in a rectangular shape. A strip-like positive electrode terminal (first electrode terminal portion) 103 is drawn from one short side portion 101a of the cell 101, and a strip-like negative electrode terminal (second electrode terminal portion) is drawn from the other short side portion 101b. 104 is pulled out.

  Next, as shown in FIG. 5B, the end of the positive electrode terminal 103 is cut off. As a result, the length and width of the positive electrode terminal 103 are adjusted. On the other hand, the end of the negative electrode terminal 104 is cut off. As a result, only the length of the negative electrode terminal 104 is prepared. Thus, the positive electrode and the negative electrode can be easily identified by making the positive electrode terminal 103 and the negative electrode terminal 104 different in shape. Further, the positive electrode 107 and the negative electrode 108 are marked on the surface of the exterior film power storage cell 100 (laminate film 102) on the base end sides of the positive electrode terminal 103 and the negative electrode terminal 104, respectively. Thereby, the front and back of the exterior film electrical storage cell 100, and the electrode of the terminals 103 and 104 can be identified easily. Two fixing holes 105 are formed in the vicinity of the end portion 103 a of the positive electrode terminal 103. Two fixing holes 106 are formed in the vicinity of the end 104 a of the negative electrode terminal 104.

  As shown in FIGS. 1 to 3, the single power storage unit fixing frame is a frame 1, which is formed by molding plastic. The frame 1 includes an upper horizontal frame plate portion 2, a lower horizontal frame plate portion 3, a left vertical frame plate portion (one side portion vertical plate portion) 4, and a right vertical frame plate portion (other side portion side vertical plate portion) 5. And have. A left vertical frame plate portion 4 and a right vertical frame plate portion 5 are connected to the upper horizontal frame plate portion 2. A left vertical frame plate portion 4 and a right vertical frame plate portion 5 are connected to the lower horizontal frame plate portion 3. The inner frame 6 surrounded by the upper horizontal frame plate portion 2, the lower horizontal frame plate portion 3, the left vertical frame plate portion 4 and the right vertical frame plate portion 5 is an outer peripheral side surface 102b of the laminate film 102 of the exterior film battery cell 100. It is formed to surround. Here, the inner frame 6 of the unit battery fixing frame 1 is formed in a rectangular shape.

  The corners C1, C2, C3, and C4 of the inner frame 6 are respectively provided with supports 10, 20, 30, and 40 that support the exterior film power storage cell 100, and are laminated by the supports 10, 20, 30, and 40. The sealing part 102a of the film 102 is supported. Specifically, the corner C1 formed by the upper horizontal frame plate portion 2 and the left vertical frame plate portion 4 has the first support 10, the left vertical frame plate portion 4 and the lower horizontal frame plate portion 3. The formed corner C2 has the second support 20, and the corner C3 formed by the lower horizontal frame plate 3 and the right vertical frame plate 5 has the third support 30, the right vertical frame plate. Fourth support portions 40 are respectively provided at corner portions C4 formed by the upper horizontal frame plate portion 2 and the upper horizontal frame plate portion 2.

  The first support (surface-side cell support) 10 includes a first horizontal frame portion side support base 11 and a first vertical frame portion side support base 12.

  The first horizontal frame portion side support base 11 is provided to be connected to the upper horizontal frame plate portion 2. The first horizontal frame portion side support base 11 extends along the upper horizontal frame plate portion 2 and has a shape extending in the width direction of the frame body 1. The 1st horizontal frame part side support stand 11 has the cell support part 11a and the protrusion part 11b. The cell support portion 11 a is provided at the center in the width direction of the frame 1 on the front side of the frame 1 (the back side of the drawing in FIG. 1 and the front side of the drawing in FIG. 2). The protruding portion 11b is formed to protrude outward from the width of the frame 1 on the back side of the frame 1 (the front side in FIG. 1 and the back side in FIG. 2).

  On the other hand, the first vertical frame portion side support base 12 is connected to the left vertical frame plate portion 4 and the first horizontal frame portion side support base 11. The first vertical frame portion side support base 12 extends along the left vertical frame plate portion 4 and has a shape extending in the width direction of the frame body 1. The 1st vertical frame part side support stand 12 has the cell support part 12a and the protrusion part 12b. The cell support portion 12a is provided at the center in the width direction of the frame 1 on the front side of the frame 1 (the back side of the drawing in FIG. 1 and the front side of the drawing in FIG. 2). The protruding portion 12b is formed to protrude outward from the width of the frame 1 on the back side of the frame 1 (the front side in FIG. 1 and the back side in FIG. 2).

  The second support (surface-side cell support) 20 includes a second horizontal frame portion side support base 21 and a second vertical frame portion side support base 22.

  The second horizontal frame portion side support base 21 is provided to be connected to the lower horizontal frame plate portion 3. The second horizontal frame portion side support base 21 has a shape extending along the lower horizontal frame plate portion 3 and extending in the width direction of the frame body 1. The 2nd horizontal frame part side support stand 21 has the cell support part 21a and the protrusion part 21b. The cell support portion 21 a is provided at the center in the width direction of the frame body 1 on the front surface side of the frame body 1 (the back side of the paper surface of FIG. 1 and the front surface side of the paper surface of FIG. 2). The protruding portion 21b is formed to protrude outward from the width of the frame 1 on the back side of the frame 1 (the front side in FIG. 1 and the back side in FIG. 2).

  On the other hand, the second vertical frame portion side support base 22 is provided in connection with the left vertical frame plate portion 4 and the second horizontal frame portion side support base 21. The second vertical frame portion side support base 22 extends along the left vertical frame plate portion 4 and has a shape extending in the width direction of the frame body 1. The second vertical frame portion side support base 22 has a cell support portion 22a and a protruding portion 22b. The cell support portion 22a is provided at the center in the width direction of the frame 1 on the front side of the frame 1 (the back side of the drawing in FIG. 1 and the front side of the drawing in FIG. 2). The protruding portion 22 b is formed to protrude outward from the width of the frame 1 on the back side of the frame 1 (the front side in FIG. 1 and the back side in FIG. 2).

  The third support (back surface side cell support) 30 includes a third horizontal frame portion side support base 31 and a third vertical frame portion side support base 32.

  The third horizontal frame portion side support base 31 is provided so as to be connected to the lower horizontal frame plate portion 3. The third horizontal frame portion side support base 31 extends along the lower horizontal frame plate portion 3 and has a shape extending in the width direction of the frame body 1. The third horizontal frame portion side support base 31 includes a cell support portion 31a and a protruding portion 31b. The cell support portion 31a is provided at the center in the width direction of the frame body 1 on the back surface side (the front surface side of FIG. 1 and the back surface side of FIG. 2) of the frame body 1. The protruding portion 31b is formed to protrude outward from the width of the frame 1 on the front side of the frame 1 (the back side of the drawing in FIG. 1 and the front side of the drawing in FIG. 2).

  On the other hand, the third vertical frame side support base 32 is connected to the right vertical frame plate part 5 and the third horizontal frame side support base 31. The third vertical frame portion side support base 32 extends along the right vertical frame plate portion 5 and has a shape extending in the width direction of the frame body 1. The third vertical frame portion side support base 32 has a cell support portion 32a and a protruding portion 32b. The cell support portion 32a is provided at the center in the width direction of the frame 1 on the back side (the front side of FIG. 1 and the back side of FIG. 2) of the frame 1. The protrusion 32b is formed to protrude outward from the width of the frame 1 on the front side of the frame 1 (the back side of the drawing in FIG. 1 and the front side of the drawing in FIG. 2).

  The fourth support (back surface side cell support) 40 includes a fourth horizontal frame portion side support base 41 and a fourth vertical frame portion side support base 42.

  The fourth horizontal frame portion side support base 41 is provided so as to be connected to the upper horizontal frame plate portion 2. The fourth horizontal frame portion side support base 41 extends along the upper horizontal frame plate portion 2 and has a shape extending in the width direction of the frame body 1. The fourth horizontal frame portion side support base 41 includes a cell support portion 41a and a protruding portion 41b. The cell support portion 41 a is provided at the center in the width direction of the frame 1 on the back side of the frame 1 (the front side in FIG. 1 and the back side in FIG. 2). The protruding portion 41b is formed to protrude outward from the width of the frame body 1 on the front surface side of the frame body 1 (the back surface side of FIG. 1 and the front surface side of FIG. 2).

  On the other hand, the fourth vertical frame side support base 42 is connected to the right vertical frame plate part 5 and the fourth horizontal frame side support base 41. The fourth vertical frame portion side support base 42 has a shape extending along the right vertical frame plate portion 5 and extending in the width direction of the frame body 1. The fourth vertical frame portion side support base 42 includes a cell support portion 42a and a protruding portion 42b. The cell support portion 42 a is provided at the center in the width direction of the frame 1 on the back side of the frame 1 (the front side in FIG. 1 and the back side in FIG. 2). The protruding portion 42b is formed to protrude outward from the width of the frame body 1 on the front surface side of the frame body 1 (the back surface side of FIG. 1 and the front surface side of FIG. 2).

  Therefore, the exterior film electrical storage cell 100 can be supported at the center in the width direction of the frame 1 by the first, second, third, and fourth supports 10, 20, 30, and 40 described above.

  A first claw portion 14 is provided on the protruding portion 12 b of the first vertical frame side support base 12. The first claw portion 14 has a shape that protrudes toward the left vertical frame plate portion 4 and can be hooked (engageable) with the fourth claw portion 44.

  The left vertical frame plate part 4 is provided with a protrusion 23 (see FIG. 2B), and the protrusion 23 is provided with a second claw part 24. The 2nd nail | claw part 24 is a shape which protrudes to the right vertical frame board part 5 side, and is a shape which can be hooked on the 3rd nail | claw part 34 (it can engage).

  A third claw portion 34 is provided on the protruding portion 32 b of the third vertical frame portion side support base 32. The 3rd nail | claw part 34 is a shape which protrudes to the right vertical frame board part 5 side, and is a shape which can be hooked on the 2nd nail | claw part 24 (it can engage).

  The right vertical frame plate 5 is provided with a protrusion 43 (see FIG. 1A), and the protrusion 43 is provided with a fourth claw 44. The 4th nail | claw part 44 is a shape which protrudes to the left vertical frame board part 4 side, and is a shape which can be hooked on the 1st nail | claw part 14 (it can engage).

  Therefore, by engaging the claws of the adjacent frame bodies 1, the plurality of frame bodies 1 can be easily connected.

  Further, the first horizontal frame part side support base 11 and the fourth horizontal frame part side support base 41 are formed with the same length, and the second horizontal frame part side support base 21 and the third horizontal frame part side support side. The support base 31 is formed with the same length. The first and fourth horizontal frame side support bases 11 and 41 are longer than the second and third horizontal frame side support bases 21 and 31. Thereby, the some frame 1 can be connected, without making the direction of the up-down direction of the frame 1 wrong.

  The left vertical frame plate portion 4 is provided with a first side support base (surface side electrode support) 50 capable of supporting the negative electrode terminal 104. The first side support base 50 includes an electrode support portion 50a and a protruding portion 50b. Specifically, the electrode support portion 50a is provided at the center in the width direction of the frame body 1 on the front surface side of the frame body 1 (the back surface side of FIG. 1 and the front surface side of FIG. 2). The protrusion 50b is formed to protrude outward from the width of the frame 1 on the back side of the frame 1 (the front side in FIG. 1 and the back side in FIG. 2).

  The right vertical frame plate portion 5 is provided with a second side support base (back side electrode support) 60 capable of supporting the positive electrode terminal 103. The second side support base 60 includes an electrode support portion 60a, a protruding portion 60b, and a protruding portion 62. The electrode support 60a is provided at the center in the width direction of the frame 1 on the back side (the front side of FIG. 1 and the back side of FIG. 2) of the frame 1. The protruding portion 60b is formed to protrude outward from the width of the frame body 1 on the front surface side of the frame body 1 (the back surface side of FIG. 1 and the front surface side of FIG. 2). The protrusion 62 is provided adjacent to the electrode support 60a and has a shape that protrudes in the width direction of the frame 1 from the electrode support 60a. With the protrusion 62 having such a shape, only the electrode having a specific shape, here, the positive electrode terminal 103 can be installed on the second side support base 60.

  A fixing hole 51 is provided in the outer side end portion 50 c of the first side support base 50. A fixing hole 61 is provided in the outer side surface portion 60 c of the second side support base 60. Thereby, the bent negative electrode terminal 104 and positive electrode terminal 103 can be fixed with a fixing tool such as a screw. The positive electrode terminal 103 and the negative electrode terminal 104 can be easily connected to each other at the end face in the longitudinal direction of the frame body 1. Therefore, workability is improved. Further, the connection between the positive electrode terminal 103 and the negative electrode terminal 104 can be released simply by removing a fixing tool such as a screw, and the single power storage unit can be easily replaced. Thereby, maintainability improves. Furthermore, by directly connecting the positive electrode terminal 103 and the negative electrode terminal 104 with screws, the assembly work efficiency is improved and the number of parts is reduced and the manufacturing cost is suppressed as compared with the case of connecting by welding or wiring. Can be planned.

  The support part 50a of the first side support base 50 and the protrusion 60b of the second side support base 60 are formed in a shape that can be engaged with each other. The protruding part 50b of the first side support base 50 and the support part 60a of the second side support base 60 are formed in a meshable shape. Thereby, when arrange | positioning the several frame 1 adjacently, while being able to connect only the surface of the frame 1 with respect to the back surface of the frame 1, only the back surface of the frame 1 with respect to the surface of the frame 1 Can be connected. As a result, a plurality of frames 1 can be connected without mistake in polarity.

  Further, an insulating frame portion (small frame portion) 71 is provided on one end side of the upper horizontal frame plate portion 2. An insulating frame portion (small frame portion) 74 is provided on the other end side of the upper horizontal frame plate portion 2. An insulating frame portion (small frame portion) 72 is provided on one end side of the lower horizontal frame plate portion 3. An insulating frame portion (small frame portion) 73 is provided on the other end side of the lower horizontal frame plate portion 3. By providing these insulating frame portions 71, 72, 73, 74, the outer side end portions 50 c, 60 c of the first and second side support bases 50, 60 are the lengths of the horizontal frame plate portions 2, 3. It arrange | positions inside the edge part in a direction. As a result, there is no need to separately provide an insulation distance between the case and the frame body 1 when storing the assembled battery in which a plurality of single power storage units are connected in a case or the like. By directly connecting the positive electrode terminal 103 and the negative electrode terminal 104 with screws, the outer dimensions can be suppressed, and as a result, the case dimensions can be reduced. Furthermore, the strength of the frame body 1 is increased and the rigidity thereof is improved. Thereby, the handleability of the frame 1 is improved.

  A plurality of hollow portions 81, 82, 83, 84 are formed in the insulating frame portions 71, 72, 73, 74, respectively. The cavities 81, 82, 83, and 84 are the front side of the frame 1 (the back side of the paper in FIG. 3A, the front side of the paper in FIG. 3C) and the back side of the frame 1 (the paper side of FIG. 3A). It is a hole which penetrates the front side, the paper surface back side of FIG.3 (c). Thereby, the material of the frame 1 can be reduced and manufacturing cost can be reduced. Further, sink marks and the like when the frame body 1 is molded can be reduced.

  A central portion 3b in the longitudinal direction of the lower horizontal frame plate portion 3 is formed with a width W1, as shown in FIGS. The longitudinal direction end part side of the lower horizontal frame board part 3 is formed by the width W2 wider than the width W1. That is, the width of the central portion 3 b in the longitudinal direction of the lower horizontal frame plate portion 3 is formed to be narrower than the end portion in the longitudinal direction of the lower horizontal frame plate portion 3. Further, an inclined surface 3 c is formed on the upper surface of the longitudinal central portion 3 b of the lower horizontal frame plate portion 3. The inclined surface 3c is inclined downward from the substantially central portion in the width direction of the frame 1 toward the side surfaces (the front surface side and the back surface side in FIG. 3C). Thereby, even if the laminate film 102 of the exterior film power storage cell 100 fixed to the frame body 1 is damaged and the internal electrolyte solution flows out, the electrolyte solution is removed from the frame body 1 without remaining inside the frame body 1. It can be discharged smoothly to the outside. The upper horizontal frame plate portion 2, the left vertical frame plate portion 4 and the right vertical frame plate portion 5 are formed to have the same width as the width W1 on the end portion in the longitudinal direction of the lower horizontal frame plate portion 3. .

  Semicircular fixing holes 2 a and 3 a are formed in the vicinity of both ends in the longitudinal direction of the upper horizontal frame plate portion 2 and the lower horizontal frame plate portion 3. Thereby, when the frame body 1 is arrange | positioned adjacently, these frame bodies 1 can be fixed by inserting fastening members, such as a volt | bolt, in the fixing holes 2a and 3a.

  Holes 71a and 72a that are open toward one side (the back side of the paper surface of FIG. 1 and the front side of the paper surface of FIG. 2) are formed in the side portions of the insulating frame portions 71 and 72, respectively. Holes 73a and 74a that are open toward one side (the front side of the paper surface in FIG. 1 and the back side of the paper surface in FIG. 2) are formed in the side portions of the insulating frame portions 73 and 74, respectively.

  Then, the assembly | attachment operation | work of the exterior film electrical storage body cell 100 to the frame 1 is demonstrated with reference to FIG.

  First, the frame body 1 is arranged so that the width direction is the vertical direction. For example, as shown in FIG. 6A, the upper horizontal frame plate portion 2 is the upper side, the lower horizontal frame plate portion 3 is the lower side, the first side support base 50 is the left side, and the second side. The side support 60 is arranged on the right side. Subsequently, as shown in FIG. 6 (b), the upper horizontal frame plate portion 2 and the lower horizontal frame plate portion 3 are inserted into the center in the longitudinal direction from the positive electrode terminal 103 side of the exterior film battery cell 100, and the upper horizontal frame The longitudinal direction center part of the board part 2 and the lower horizontal frame board part 3 and the longitudinal direction center part of the exterior film electrical storage cell 100 are made to correspond substantially.

  Next, as shown in FIG. 6 (c), the negative electrode terminal is formed on the electrode support portion 50 a of the first side support 50 by rotating around the central portion in the longitudinal direction of the exterior film battery cell 100. 104 is disposed, and the positive electrode terminal 103 is disposed on the electrode support portion 60 a of the second side support base 60. Here, the second side support base 60 is provided with a protrusion 62, and as shown in FIGS. 7A and 7B, the second side support base 60 includes Only the positive terminal 103 can be arranged. As described above, since only predetermined terminals can be arranged on the side support bases 50 and 60 of the frame body 1, the exterior film power storage cell 100 is not erroneously assembled to the frame body 1. Thereby, the assembly workability is improved.

  Thus, the exterior film electrical storage cell 100 can be assembled to the frame 1 simply by inserting the exterior film electrical storage cell 100 into the longitudinal center of the frame 1 and performing a half rotation. That is, the exterior film power storage unit cell 100 can be easily assembled to the frame 1. Moreover, since the frame body 1 is of one type, an increase in manufacturing cost can be suppressed, and the handleability is improved, unlike the case where there are a plurality of types of the frame body 1.

  Furthermore, according to the fixed frame for a single electric storage body described above, the first, second, third, and fourth support bases 10, 20, 30, and 40 are provided, and the structure is relatively simple. Thereby, manufacturing cost can be reduced.

  The support bases 11, 12, 21, and 22 have protrusions 11b, 12b, 21b, and 22b, respectively, and the support bases 31, 32, 41, and 42 have protrusions 31b, 32b, 41b, and 42b, respectively. The direction of the frame 1 is limited when connecting a plurality of single power storage units each having the outer film power storage cell 100 assembled to the body 1. Thereby, the operation | work at the time of connecting a some single electrical storage body in series can be performed without error, and the safety | security of an operation | work improves.

  The exterior film power storage cell 100 is assembled to the frame 1 also when the first side support base 50 has the protrusions 50b and the second side support base 60 has the protrusions 60b. The direction of the frame 1 is limited when connecting a plurality of single power storage units. Thereby, the safety of work is further improved.

Next, a case where an assembled battery in which a plurality of the single power storage units described above are connected will be described with reference to FIGS. 8, 9, and 10.
First, two types of single power storage units are prepared so that a plurality of single power storage units can be connected in series on the same side of adjacent single power storage units. Specifically, as shown on the left and right sides in FIG. 8A, the end side of the positive electrode terminal 103 extends along the outer side end 60c of the second side support base 60, Bend in the direction to stand. The negative electrode terminal 104 extends along the outer side end portion 50c of the first side support base 50 and is bent in a standing direction. Thereby, the convex single power storage unit 201 protruding in the width direction of the frame body 1 from the electrode support portions 50a and 60a is manufactured.

  As shown in the center of FIG. 8A, the end portion side of the positive electrode terminal 103 is bent along the outer end portion 60 c of the second side support base 60. The negative electrode terminal 104 is bent along the outer side end portion 50 c of the first side support base 50. Accordingly, the concave type single unit extending along the outer side end portions 50c and 60c of the first and second side support bases 50 and 60 without protruding from the electrode support portions 50a and 60a in the width direction of the frame body 1 is obtained. A power storage unit 202 is manufactured.

  Subsequently, as shown in FIGS. 8B and 9B, the back surface side of the convex single power storage unit 201 and the front surface side of the concave single power storage unit 202 are adjacent to each other. At this time, the first claw portion of the convex single power storage unit 201 and the fourth claw unit of the concave single power storage unit 202 are engaged. Further, the fourth claw portion of the convex single power storage unit 201 and the first claw unit 14 of the concave single power storage unit 202 are engaged. In the outer side end portion 50 c of the first side support base 50 of the concave unit battery 202, the positive terminal 103 of the convex unit battery 201 and the negative electrode of the concave unit battery 202 are provided. The terminal 104 is overlapped. As a result, the assembled battery 300 in which the convex single power storage unit 201 and the concave single power storage unit 202 are connected is manufactured.

  Subsequently, as shown in FIG. 8C and FIG. 9C, the back surface side of the concave single power storage unit 202 of the assembled battery 300 and the front surface side of the convex single power storage unit 201 are adjacent to each other. At this time, the third claw portion of the concave single power storage unit 202 is engaged with the second claw portion of the convex single power storage unit 201. Further, the second claw portion of the concave single power storage unit 202 is engaged with the third claw portion 34 of the convex single power storage unit 201. At the outer side end 60a of the second side support base 60 of the concave single battery 202, the positive terminal 103 of the concave single battery 202 and the convex shape arranged on the right side in the figure. The negative electrode terminal 104 of the single battery unit 201 is overlapped. Thereby, the assembled battery 300 in which the three units of the convex single power storage unit 201, the concave single power storage unit 202, and the convex single power storage unit 201 are connected is manufactured.

  The assembled battery 300 in which 40 units including the convex type single power storage unit 201 and the concave type single power storage unit 202 are connected also includes the convex type single power storage unit 201, the concave type single power storage unit 202, and the convex type single power storage unit 201. Can be produced in the same manner as the assembled battery 300 in which the three batteries are connected. That is, as shown in FIG. 10, the convex single power storage unit 201 and the concave single power storage unit 202 are alternately arranged, and the front and back surfaces of the convex single power storage unit 201 and the concave single power storage unit 202 are arranged. The battery pack 300 is manufactured by arranging the adjacent battery cells 201 and 202 adjacent to each other.

  Therefore, according to the assembled battery 300, the assembled battery in which a plurality of single storage batteries are connected in series by simply arranging the convex single storage battery 201 and the concave single storage battery 202 with their front and back surfaces adjacent to each other. 300 can be easily manufactured.

  Furthermore, when connecting a plurality of single power storage units, the outer film power storage unit cell 100 assembled to the frame 1 is supported also by the frame 1 of the adjacent single power storage units. Thereby, the assembly | attachment property to the frame 1 of the exterior film electrical storage cell 100 improves.

  In the above description, the assembled battery 300 in which three or forty single electric storage units are connected has been described. However, the number of the single electric storage units is not limited to three or forty units, but may be applied to an assembled battery in which a plurality of units are connected. Is possible.

  The single battery assembly fixing frame and the assembled battery according to the present invention can be used in the electrical equipment industry, the automobile industry, and the like because the exterior film power storage cell can be easily assembled with a relatively simple configuration. can do.

DESCRIPTION OF SYMBOLS 1 Frame 6 Inner frame 10 1st support tool 11 1st horizontal frame part side support stand 12 1st vertical frame part side support stand 14 1st nail | claw part 20 2nd support tool 21 2nd horizontal frame Part side support base 22 Second vertical frame part side support base 24 Second claw part 30 Third support 31 Third horizontal frame part side support base 32 Third vertical frame part side support base 34 Third Claw part 40 Fourth support tool 41 Fourth horizontal frame part side support base 42 Fourth vertical frame part side support base 44 Fourth claw part 50 First side side support base 60 Second side side Support base 100 Outer film power storage cell 101 Cell 102 Laminate film 103 Positive electrode terminal 104 Negative electrode terminal 201 Convex type single power storage unit 202 Concave type single power storage unit 300 Assembly battery

Claims (12)

A fixing frame for a single power storage unit for fixing an exterior film power storage unit cell in which a flat battery element is covered with a film,
A frame surrounding the outer peripheral side surface of the exterior film power storage cell;
A surface-side cell support that is provided on an inner frame of the frame body and has a support portion on the surface side of the frame body that supports the exterior film battery cell;
A fixed frame for a single power storage unit, comprising: a back surface side cell support provided on an inner frame of the frame body and having a support portion for supporting the exterior film power storage cell on the back surface side of the frame body. . The fixed frame for a single electric storage body according to claim 1,
The inner frame of the frame is rectangular,
The surface-side cell support is respectively disposed at a corner on one side in the longitudinal direction of the inner frame,
The back-side cell support is disposed at a corner on the other side in the longitudinal direction of the inner frame, respectively. The fixed frame for a single electric storage body according to claim 2,
The front surface side cell support has a protruding portion that protrudes toward the back side of the frame,
The said back surface side cell support has a protrusion part which protrudes to the surface side of the said frame, The fixed frame for single electrical storage bodies characterized by the above-mentioned. The fixed frame for a single electric storage body according to claim 1,
The exterior film power storage cell has two strip-like electrode terminal portions connected to the battery element and extending to the outside of the film,
A surface-side electrode support that is provided on the frame and has an electrode support that supports the electrode terminal portion on the surface of the frame;
A fixing frame for a single electric storage body, comprising: a back surface side electrode support that is provided on the frame body and has an electrode support portion that supports the electrode terminal portion on the back surface side of the frame body. It is a fixed frame for single electric storage bodies according to claim 4,
The inner frame of the frame is rectangular,
The surface-side electrode support is disposed on one side in the longitudinal direction of the inner frame,
The back surface side electrode support is disposed on the other side portion in the longitudinal direction of the inner frame, and the fixed frame for a single power storage unit. It is a fixed frame for single electric storage bodies according to claim 5,
The surface-side electrode support has a protruding portion that protrudes toward the back side of the frame,
The said back surface side electrode support has a protrusion part which protrudes to the surface side of the said frame, The fixed frame for single electrical storage bodies characterized by the above-mentioned. It is a fixed frame for single electric storage bodies according to claim 6,
A fixing frame for a single power storage unit, wherein fixing holes are respectively formed in side end portions of the front surface side electrode support and the back surface side electrode support. It is a fixed frame for single electric storage bodies according to claim 7,
A fixed frame for a single electric power storage unit, wherein the side end portions of the front surface side electrode support and the back surface side electrode support are arranged on the inner side of the side end portions in the longitudinal direction of the frame body. It is a fixed frame for single electric storage bodies according to claim 8,
The inner frame of the frame has a horizontal frame plate part,
A fixed frame for a single power storage unit, wherein a width of a central portion in a longitudinal direction of the horizontal frame plate portion is formed narrower than an end portion side of the horizontal frame plate portion. It is a fixed frame for single electric storage bodies according to claim 9,
A fixed frame for a single electric power storage unit, wherein an inclined portion is provided at a longitudinal center of the lower horizontal frame plate. It is a fixed frame for single electric storage bodies according to claim 10,
A fixing frame for a single electric storage body, comprising a claw portion provided on the frame body and connectable to an adjacent frame body. The said exterior film electrical storage body cell is arrange | positioned in the inner frame of the fixed frame for single electrical storage bodies of Claim 7, and the said electrode terminal part of the said exterior film electrical storage body cell is bent, and the said surface side electrode support tool and the said back surface side A convex single power storage unit that is made to stand on an electrode support;
The said exterior film electrical storage cell is arrange | positioned in the inner frame of the fixed frame for single electrical storage bodies of Claim 7, and the said electrode terminal part of the said exterior film electrical storage body cell is the said surface side electrode support tool and the said back surface side electrode support A concave single power storage unit bent along the side of the tool,
The convex single power storage unit and the concave single power storage unit are alternately arranged, and the front side and the back side of the convex single power storage unit and the concave single power storage unit are arranged adjacent to each other. ,
The assembled battery, wherein the electrode terminal portion of the convex single power storage unit and the electrode terminal of the concave single power storage unit are fixed to a side end of the electrode support.

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