JP2015076179A - All-solid-state lithium ion battery and method for manufacturing all-solid-state lithium ion battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an all-solid-state lithium ion battery, excellent in productivity and having a structure where the quality thereof can be easily stabilized.SOLUTION: An all-solid-state lithium ion battery 100 includes: a battery body 1 including a battery element 10 comprising a positive electrode layer 11, a solid electrolyte layer 12 and a negative electrode layer 13; and a sealing resin part 20 sealing the battery body 1. The sealing resin part 20 includes: a resin-made frame body 30 housing the battery body 1 within a through hole 33 penetrating between the front and rear sides thereof; a first conductive resin layer (for example, a first conductive self-adhesive film 41) joined on one face 1a of the battery body 1 and sealing one end of the through hole 33; and a second conductive resin layer (for example, a second conductive self-adhesive film 42) joined on the other face 1b of the battery body 1 and sealing the other end of the through hole 33. At least the battery element 10 is in an unjoined state to an inner peripheral wall surface 33a of the through hole 33.

Description

  The present invention relates to an all-solid-state lithium ion battery and a method for producing an all-solid-state lithium ion battery.

  Lithium ion batteries are generally used as a power source for small portable devices such as mobile phones and notebook computers. Recently, in addition to small portable devices, lithium ion batteries have begun to be used as power sources for electric vehicles and the like.

  An electrolyte solution containing a flammable organic solvent is used in a lithium ion battery currently on the market. On the other hand, a lithium ion battery that has a solid electrolyte instead of an electrolyte and is made into a solid state (hereinafter referred to as an all solid lithium ion battery) is excellent in productivity because a flammable organic solvent is not used in the battery. It is believed that.

  An all-solid-state lithium ion battery is described in Patent Document 1, for example. In the all solid-state lithium ion battery described in Patent Document 1, a negative electrode layer, a solid electrolyte layer, a positive electrode layer, and a conductive layer are laminated in this order, and a positive electrode terminal is connected to the conductive layer via a conductive adhesive. (Electrode) is joined, and a negative electrode terminal (electrode) is joined to the negative electrode layer via a conductive adhesive. The all solid-state lithium ion battery described in Patent Document 1 further includes an outer periphery of a laminate including a negative electrode terminal, a conductive adhesive, a negative electrode layer, a solid electrolyte layer, a positive electrode layer, a conductive layer, a conductive adhesive, and a positive electrode terminal. It has a sealing resin layer made of epoxy resin or the like for sealing the surface.

JP 2008-257932 A

  As described above, the all solid-state lithium ion battery described in Patent Document 1 is sealed with an epoxy resin or the like formed around it. According to the study of the inventor of the present application, in the all solid-state lithium ion battery described in Patent Document 1, the distance between the electrodes (opposite spacing) is in-plane due to residual stress caused by thermal shrinkage at the time of curing such as epoxy resin It is difficult to stabilize the quality due to non-uniformity.

The present invention has been made in view of the above problems, and provides an all-solid-state lithium ion battery having a structure that is excellent in productivity and can easily stabilize the quality.
The present invention also provides a method for producing an all-solid-state lithium ion battery that is excellent in productivity of an all-solid-state lithium ion battery and that can easily stabilize the quality of the all-solid-state lithium ion battery. .

The present invention
A battery body including a battery element in which a positive electrode layer, a solid electrolyte layer, and a negative electrode layer are laminated in this order;
A sealing resin portion sealing the battery body;
With
The sealing resin portion is
A frame made of resin, having a through hole penetrating the front and back, and housing the battery body in the through hole; and
A first conductive resin layer bonded to one surface of the battery body and sealing one end of the through hole;
A second conductive resin layer bonded to the other surface of the battery body and sealing the other end of the through hole;
Have
The battery main body provides an all solid-state lithium ion battery accommodated in the through hole in a state where at least the battery element is not bonded to the inner peripheral wall surface of the through hole.

Since this all-solid-state lithium ion battery is an all-solid-state lithium ion battery having a solid electrolyte layer, it is more productive than a lithium ion battery having an electrolyte solution.
Moreover, since the battery main body is sealed by the sealing resin portion, the all solid-state lithium ion battery can have a stable structure.
Specifically, the battery main body is accommodated in the through hole formed in the frame body, one end of the through hole is sealed by the first conductive resin layer, and the second conductive resin layer penetrates the battery body. The other end of the hole is sealed. Thereby, the structure where the circumference | surroundings of the battery main body were sealed with the sealing resin part 20 is implement | achieved.
Furthermore, since the first conductive resin layer is bonded to one surface of the battery main body, the battery main body can be electrically connected to the outside via the first conductive resin layer. Similarly, since the second conductive resin layer is bonded to the other surface of the battery body, the battery body can be electrically connected to the outside via the second conductive resin layer.
In addition, the battery body has a battery element in which at least a positive electrode layer, a solid electrolyte layer, and a negative electrode layer are laminated in this order in a state where the battery element is not bonded to the inner peripheral wall surface of the through hole. Contained. Thereby, at least the battery element is not firmly restrained by the inner peripheral wall surface of the through hole, and can move freely to some extent within the through hole. For this reason, since it can suppress that unnecessary stress is added to a battery element, the quality of an all-solid-state type lithium ion battery can be stabilized easily.
That is, the all solid-state lithium ion battery can have a structure that is excellent in productivity and can easily stabilize the quality.

The present invention also provides:
A battery main body including a battery element in which a positive electrode layer, a solid electrolyte layer, and a negative electrode layer are laminated in this order, and at least the battery in the through hole of the resin frame in which a through hole penetrating the front and back is formed. A step of accommodating the element in a non-bonded state with respect to the inner peripheral wall surface of the through hole;
Sealing one end of the through hole with the first conductive resin layer;
Bonding the first conductive resin layer to one surface of the battery body;
Sealing the other end of the through hole with a second conductive resin layer;
Bonding the second conductive resin layer to the other surface of the battery body;
An all-solid-state lithium ion battery manufacturing method is provided.

  ADVANTAGE OF THE INVENTION According to this invention, it is excellent in productivity and can provide the all-solid-state type lithium ion battery of the structure which can stabilize quality easily.

It is sectional drawing of the all-solid-state type lithium ion battery which concerns on 1st Embodiment. It is a top view of the components which comprise the all-solid-state type lithium ion battery which concerns on 1st Embodiment, among these, Fig.2 (a) is a frame, FIG.2 (b) is a battery main body, FIG.2 (c). Indicates current collector layers, respectively. FIGS. 3A to 3D are cross-sectional views showing a series of steps in the method for manufacturing an all solid-state lithium ion battery according to the first embodiment. 4A to 4C are cross-sectional views showing a series of steps in the manufacturing method of the all-solid-state lithium ion battery according to the first embodiment. It is sectional drawing of the all-solid-state type lithium ion battery which concerns on 2nd Embodiment. 6A to 6E are cross-sectional views showing a series of steps in the method for producing an all solid-state lithium ion battery according to the second embodiment. 7A to 7C are cross-sectional views showing a series of steps in the method for manufacturing an all solid-state lithium ion battery according to the second embodiment. FIG. 8A is a cross-sectional view of an all-solid-state lithium ion battery according to the third embodiment, and FIG. 8B is a plan view of a frame of the all-solid-state lithium ion battery according to the third embodiment. It is. It is sectional drawing of the all-solid-state type lithium ion battery which concerns on 4th Embodiment. FIGS. 10A and 10B are cross-sectional views showing a series of steps in the method for producing an all solid-state lithium ion battery according to the fourth embodiment. Each of FIGS. 11A to 11D is a cross-sectional view of an all solid-state lithium ion battery according to the fifth embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

[First Embodiment]
FIG. 1 is a cross-sectional view of an all solid-state lithium ion battery 100 according to the first embodiment. 2 is a plan view of components constituting the all-solid-state lithium ion battery 100 according to the first embodiment, in which FIG. 2A shows the frame 30 and FIG. 2B shows the battery main body 1. FIG. 2C shows the current collector layers 51 and 52, respectively.

The all-solid-state lithium ion battery 100 according to this embodiment includes a battery body 1 including a battery element 10 in which a positive electrode layer 11, a solid electrolyte layer 12, and a negative electrode layer 13 are laminated in this order, and the battery body 1 is sealed. Sealing resin part 20. The sealing resin portion 20 includes a resin frame 30, a first conductive resin layer (for example, the first conductive adhesive film 41), a second conductive resin layer (for example, the second conductive adhesive film 42), and the like. Have. A through-hole 33 is formed in the frame 30 so as to penetrate the front and back. The frame 30 houses the battery body 1 in the through hole 33. The first conductive resin layer is bonded to one surface 1 a of the battery body 1 and seals (closes) one end of the through hole 33. The second conductive resin layer is bonded to the other surface 1 b of the battery body 1 and seals (closes) the other end of the through hole 33. The battery body 1 is accommodated in the through hole 33 in a state where at least the battery element 10 is not joined to the inner peripheral wall surface 33 a of the through hole 33.
Here, sealing (closing) one end of the through hole 33 means sealing (closing) the opening on one end side of the through hole 33. Similarly, sealing (closing) the other end of the through hole 33 means sealing (closing) the opening on the other end side of the through hole 33.
Further, the non-bonded state is neither a state of being bonded nor a state of being adhered.

  More specifically, for example, the first conductive resin layer is bonded to one surface 1 a of the battery body 1 and one surface 31 of the frame body 30 to seal one end of the through hole 33. The second conductive resin layer is bonded to the other surface 32 of the battery body 1 and the other surface 32 of the frame body 30 to seal the other end of the through hole 33.

As described above, the battery element 10 is formed by laminating the positive electrode layer 11, the solid electrolyte layer 12, and the negative electrode layer 13 in this order. In the case of this embodiment, the battery body 1 has only one battery element 10. In the case of this embodiment, the battery main body 1 is comprised only by the battery element 10, for example.
In the case of this embodiment, one surface 1a of the battery body 1 is a surface (outer surface 11a) opposite to the solid electrolyte layer 12 side in the positive electrode layer 11, and the other surface 1b of the battery body 1 is a negative electrode. This is the surface (outer surface 13a) opposite to the solid electrolyte layer 12 side in the layer 13.

  The positive electrode layer 11, the solid electrolyte layer 12, and the negative electrode layer 13 are each formed into a thin plate shape by press molding a powder material. The battery element 10 is formed in a thin plate shape by laminating a positive electrode layer 11, a solid electrolyte layer 12, and a negative electrode layer 13 in this order and integrating them by press molding or the like.

  The planar shape of the battery element 10 can be any shape. For example, it may be circular as shown in FIG. 2B, or may have other shapes (for example, rectangular shape). The planar shapes of the positive electrode layer 11, the solid electrolyte layer 12, and the negative electrode layer 13 can be equivalent to each other (the same shape as each other, or a shape that is similar to each other and slightly different in size).

The frame 30 is made of, for example, a thin plate made of an insulating resin. The planar shape (outer shape) of the frame body 30 can be an arbitrary shape. FIG. 2A shows an example in which the outer shape of the frame 30 is a rounded rectangular shape.
A through-hole 33 is formed in the frame 30 so as to penetrate the front and back. The planar shape of the through hole 33 is equivalent to the planar shape of the battery body 1. The through-hole 33 is preferably set to a size that accommodates the battery body 1 with almost no gap. The thickness of the frame body 30 is equivalent to the thickness of the battery body 1.

  As described above, the battery body 1 is accommodated in the through hole 33 in a state where at least the battery element 10 is not joined to the inner peripheral wall surface 33 a of the through hole 33. However, it is preferable that the side surface (circumferential surface) of the battery main body 1 is in contact with the inner peripheral wall surface 33 a of the through hole 33 in a state where the battery main body 1 is accommodated in the through hole 33.

The first conductive resin layer and the second conductive resin layer are, for example, conductive adhesive films, respectively. That is, the first conductive resin layer is the first conductive adhesive film 41, and the second conductive resin layer is the second conductive adhesive film 42.
The first conductive adhesive film 41 is attached to one surface 1 a of the battery body 1 and one surface 31 of the frame body 30 to seal (close) one end of the through hole 33. Similarly, the second conductive adhesive film 42 is affixed to the other surface 1b of the battery body 1 and the other surface 32 of the frame 30, and seals (closes) the other end of the through hole 33. doing.

The first conductive pressure-sensitive adhesive film 41 preferably has a shape and size that can completely close one end of the through-hole 33, but the planar shape can be any shape.
Similarly, the second conductive pressure-sensitive adhesive film 42 preferably has a shape and dimensions that can completely close the other end of the through-hole 33, but the planar shape can be any shape. .
The planar shape of the first conductive pressure-sensitive adhesive film 41 and the second conductive pressure-sensitive adhesive film 42 can be, for example, the same shape as the outer shape of the frame body 30.

  The all solid-state lithium ion battery 100 further includes a first current collector layer 51 and a second current collector layer 52. The first current collector layer 51 is electrically connected to one surface 1 a of the battery body 1 via the first conductive adhesive film 41. The second current collector layer 52 is electrically connected to the other surface 1 b of the battery body 1 through the second conductive adhesive film 42. The first current collector layer 51 and the second current collector layer 52 are each formed in a thin plate shape.

  Both sides of the first conductive adhesive film 41 and the second conductive adhesive film 42 have adhesiveness. And the 1st electrical power collector layer 51 is affixed on the surface on the opposite side to the battery main body 1 side in the 1st electroconductive adhesive film 41. FIG. Similarly, the 2nd electrical power collector layer 52 is affixed on the surface on the opposite side to the battery main body 1 side in the 2nd electroconductive adhesive film 42. FIG.

  The planar shape of the 1st electrical power collector layer 51 and the 2nd electrical power collector layer 52 can be made into arbitrary shapes. The planar shape of the 1st electrical power collector layer 51 and the 2nd electrical power collector layer 52 can be made into the shape equivalent to the 1st electroconductive adhesive film 41 and the 2nd electroconductive adhesive film 42, for example. Thereby, the 1st electrical power collector layer 51 can block | close one end of the through-hole 33 with the 1st conductive adhesive film 41, and the 2nd electrical power collector layer 52 penetrates with the 2nd conductive adhesive film 42 The other end of the hole 33 can be closed.

  Next, an example of the material of each component of the all solid-state lithium ion battery 100 will be described.

The positive electrode layer 11 includes a positive electrode active material, and includes a conductive additive, a solid electrolyte, and the like as necessary. The positive electrode active material is not particularly limited, and generally known materials can be used. As an example, the positive electrode layer 11 can be composed of a mixture of amorphous Li ₆ MoS ₆ powder, acetylene black (AB) powder, and Li ₁₁ P ₃ S ₁₂ powder.

The negative electrode layer 13 is configured to include a negative electrode active material, and includes a conductive additive, a solid electrolyte, and the like as necessary. The negative electrode active material is not particularly limited, and generally known materials can be used. For example, the negative electrode layer 13 can be made of amorphous Li—Si—P sulfide powder. Examples of the powder include a mixture of a Li ₂₂ Si ₅ powder, a graphite powder, and a Li ₁₁ P ₃ S ₁₂ powder.

The solid electrolyte constituting the solid electrolyte layer 12 is not particularly limited as long as it has lithium ion conductivity, and generally known ones can be used. As an example, the solid electrolyte layer 12 can be composed of powder of Li ₁₁ P ₃ S ₁₂ glass.

  The resin material that constitutes the frame body 30 is not particularly limited as long as it is a material that can secure sufficient strength to accommodate and hold the battery main body 1 inside the through hole 33. As an example, the frame 30 can be formed of a film such as PET or vinyl chloride.

  The first conductive pressure-sensitive adhesive film 41 and the second conductive pressure-sensitive adhesive film 42 are configured, for example, by dispersing conductive fine particles in a pressure-sensitive adhesive resin. Examples of the conductive fine particles include metal particles such as Ni, particles obtained by coating a metal on nonconductive particles, and carbon particles. The adhesive resin is a resin (adhesive) that can disperse conductive fine particles and exhibits adhesiveness. Examples of such adhesive resins include (meth) acrylic thermoplastic resins (acrylic adhesives). In this specification, “(meth) acryl” is a generic term for acrylic and methacrylic.

  The first current collector layer 51 and the second current collector layer 52 are metal foils made of a metal material such as SUS or aluminum, for example. However, the first current collector layer 51 and the second current collector layer 52 may be configured by coating a metal or carbon on a synthetic resin film, nonwoven fabric, woven fabric, or paper.

Next, a manufacturing method of the all solid state lithium ion battery according to the present embodiment will be described.
FIGS. 3A to 3D and FIGS. 4A to 4C are cross-sectional views showing a series of steps in the method for manufacturing an all solid-state lithium ion battery according to the first embodiment.
This manufacturing method includes the following steps (1) to (5).
(1) A resin frame 30 having a through hole 33 penetrating the front and back of the battery body 1 including the battery element 10 in which the positive electrode layer 11, the solid electrolyte layer 12, and the negative electrode layer 13 are laminated in this order. (2) 1st conductive resin layer (for example, 1st conductive adhesive film 41) The process in which at least the battery element 10 is accommodated in the through-hole 33 in the non-bonded state with respect to the inner peripheral wall surface 33a of the through-hole 33 (3) The step of bonding the first conductive resin layer to one surface 1a of the battery body 1 (4) The second conductive resin layer (for example, the second conductive adhesive film) 43) The step of sealing the other end of the through-hole 33 by (5) The step of bonding the second conductive resin layer to the other surface 1b of the battery body 1 Hereinafter, an example of a specific step will be described. Note that the steps described below may be performed in an order other than that illustrated below as long as the all-solid-state lithium ion battery 100 can be finally manufactured.

  First, as shown to Fig.3 (a), the solid electrolyte layer 12 is produced by press-molding the powder material of the solid electrolyte layer 12. FIG.

  Next, as shown in FIG. 3B, the powder material of the negative electrode layer 13 is laminated on the previously produced solid electrolyte layer 12, and the powder material is press-molded. Thereby, the negative electrode layer 13 is integrally formed with the solid electrolyte layer 12.

  Moreover, as shown in FIG.3 (c), the positive electrode layer 11 is produced by press-molding the powder material of the positive electrode layer 11. FIG.

  Next, as shown in FIG. 3D, the positive electrode layer 11 is stacked on the solid electrolyte layer 12 integrated with the negative electrode layer 13, and the negative electrode layer 13, the solid electrolyte layer 12 and the positive electrode layer 11 are pressed. . Thereby, the positive electrode layer 11 is integrated with the solid electrolyte layer 12. In this way, the battery body 1 including the battery element 10 in which the positive electrode layer 11, the solid electrolyte layer 12, and the negative electrode layer 13 are laminated in this order is obtained.

  Next, the frame 30 is prepared. The frame 30 is obtained by forming a through hole 33 in a thin resin plate by punching or the like.

  In addition, a first current collector layer 51 and a second current collector layer 52 are prepared. A first conductive adhesive film 41 having the same shape and dimensions as the first current collector layer 51 is attached to one surface of the first current collector layer 51, and the other surface of the second current collector layer 52 The second conductive adhesive film 42 having the same shape and size as the second current collector layer 52 is attached.

  Next, as shown to Fig.4 (a), the other end of the through-hole 33 is sealed by sticking the 2nd electroconductive adhesive film 42 to the other surface 32 of the frame 30. As shown in FIG.

  Next, as shown in FIG. 4B, the battery body 1 is inserted into the through hole 33 of the frame body 30. At this time, the 2nd electroconductive adhesive film 42 is affixed with respect to the other surface 1b of the battery main body 1. FIG.

  Next, as shown in FIG. 4 (c), the first conductive adhesive film 41 is attached to one surface 1 a of the battery body 1 and one surface 31 of the frame body 30, whereby the through-hole 33. One end of the is sealed. Thus, the all solid-state lithium ion battery 100 is obtained.

According to the first embodiment as described above, the all-solid-state lithium ion battery 100 includes the battery body 1 including the battery element 10 in which the positive electrode layer 11, the solid electrolyte layer 12, and the negative electrode layer 13 are laminated in this order. And a sealing resin portion 20 that seals the battery body 1.
The all-solid-state lithium ion battery 100 is an all-solid-state lithium ion battery having the solid electrolyte layer 12, and thus has higher productivity than a lithium ion battery having an electrolytic solution.
Moreover, since the battery main body 1 is sealed by the sealing resin portion 20, the all solid-state lithium ion battery 100 can have a stable structure.
Specifically, the battery body 1 is accommodated in the through-hole 33 formed in the frame body 30, one end of the through-hole 33 is sealed by the first conductive resin layer, and the second conductive The other end of the through hole 33 is sealed by the resin layer. Thereby, the structure where the circumference | surroundings of the battery main body 1 were sealed with the sealing resin part 20 is implement | achieved.
Furthermore, since the 1st conductive resin layer (for example, 1st conductive adhesive film 41) is joined to one surface 1a of the battery main body 1, the battery main body 1 is made outside via the first conductive resin layer. Can be electrically connected. Similarly, since the second conductive resin layer (for example, the second conductive adhesive film 42) is bonded to the other surface 1b of the battery main body 1, the battery main body 1 is externally connected via the second conductive resin layer. Can be electrically connected.
In addition, the battery body 1 includes a battery element 10 in which at least the positive electrode layer 11, the solid electrolyte layer 12, and the negative electrode layer 13 are stacked in this order, and is not bonded to the inner peripheral wall surface 33 a of the through hole 33. In the state, it is accommodated in the through hole 33. Thereby, at least the battery element 10 is not firmly restrained by the inner peripheral wall surface 33 a of the through hole 33, and can move freely within the through hole 33 to some extent. For this reason, since it can suppress that unnecessary stress is added to the battery main body 1, the quality of the all-solid-state lithium ion battery 100 can be stabilized easily.
That is, the all-solid-state lithium ion battery 100 can have a structure that is excellent in productivity and can easily stabilize the quality.
Since all solid-state lithium ion battery 100 does not have an organic electrolyte, there is no risk of leakage of the organic electrolyte, and the first conductive resin layer and the second conductive resin layer are formed by the organic electrolyte. There is no worry of dissolving. Therefore, sealing using the first conductive resin layer and the second conductive resin layer is possible.

  The first conductive resin layer is bonded to one surface 1 a of the battery body 1 and one surface 31 of the frame body 30 to seal one end of the through hole 33. Similarly, the second conductive resin layer is bonded to the other surface 1 b of the battery body 1 and the other surface 32 of the frame body 30 to seal the other end of the through hole 33. Therefore, it is possible to realize a structure in which both ends of the through hole 33 are easily and reliably sealed by the first conductive resin layer and the second conductive resin layer.

  The first conductive resin layer is a first conductive adhesive film 41 attached to one surface 1 a of the battery body 1 and one surface 31 of the frame 30. Similarly, the second conductive resin layer is a second conductive adhesive film 42 attached to the other surface 1 b of the battery body 1 and the other surface 32 of the frame 30. Therefore, the first conductive pressure-sensitive adhesive film 41 and the second conductive pressure-sensitive adhesive film 42 are produced by cutting the conductive pressure-sensitive adhesive film into a desired shape, and the first conductive pressure-sensitive adhesive film 41 is attached to one surface 1a of the battery body 1. In addition, the second conductive adhesive film 42 is attached to the other surface 1b of the battery body 1 and the other surface 32 of the frame 30 so as to be easily sealed. The resin part 20 can be comprised.

  The first conductive pressure-sensitive adhesive film 41 and the second conductive pressure-sensitive adhesive film 42 have adhesiveness on both sides, and the all-solid-state lithium ion battery 100 has the battery body 1 in the first conductive pressure-sensitive adhesive film 41. The first current collector layer 51 affixed to the surface opposite to the side, and the second current collector layer affixed to the surface opposite to the battery body 1 side in the second conductive adhesive film 42 52. That is, the first current collector layer 51 and the battery body 1 are easily electrically connected by the first conductive adhesive film 41, and the second current collector layer 52 is easily connected by the second conductive adhesive film 42. And the battery body 1 are electrically connected. Therefore, the all-solid-state lithium ion battery 100 can have a structure that is easier to manufacture.

[Second Embodiment]
FIG. 5 is a cross-sectional view of an all solid-state lithium ion battery 100 according to the second embodiment. The all-solid-state lithium ion battery 100 according to this embodiment is different from the all-solid-state lithium ion battery 100 according to the first embodiment in the points described below. It is comprised similarly to the all-solid-state type lithium ion battery 100 which concerns on this embodiment.

In the case of this embodiment, the battery body 1 includes a third conductive adhesive film 61 and a fourth conductive adhesive film 62 in addition to the battery element 10.
The third conductive adhesive film 61 is attached to the outer surface 11 a of the positive electrode layer 11. The fourth conductive adhesive film 62 is affixed to the outer surface 13 a of the negative electrode layer 13. The battery body 1 including the third conductive adhesive film 61 and the fourth conductive adhesive film 62 is accommodated in the through hole 33.

  Since the third conductive adhesive film 61 is attached to the outer surface 11 a of the positive electrode layer 11, the third conductive adhesive film 61 functions as a support that suppresses the collapse of the positive electrode layer 11. Similarly, the fourth conductive pressure-sensitive adhesive film 62 functions as a support that suppresses the collapse of the negative electrode layer 13 by sticking the fourth conductive pressure-sensitive adhesive film 62 to the outer surface 13 a of the negative electrode layer 13. Therefore, the collapse of the positive electrode layer 11 and the negative electrode layer 13 is suppressed.

  In the case of the present embodiment, the outer peripheral surfaces of the third conductive adhesive film 61 and the fourth conductive adhesive film 62 may adhere to the inner peripheral wall surface 33a of the frame 30, but at least the battery element 10. (Positive electrode layer 11, solid electrolyte layer 12 and negative electrode layer 13) are in a non-bonded state with respect to the inner peripheral wall surface 33 a of frame 30. For this reason, also in this embodiment, it is suppressed that an unnecessary stress acts on the battery element 10 at least.

  In the case of this embodiment, one surface (the lower surface in FIG. 5) of the first conductive adhesive film 41 is the surface opposite to the battery element 10 side in the third conductive adhesive film 61, that is, one surface of the battery body 1. It is affixed on the surface 1 a and one surface 31 of the frame 30. Further, one surface (the upper surface in FIG. 5) of the second conductive adhesive film 42 is a surface opposite to the battery element 10 side in the fourth conductive adhesive film 62, that is, the other surface 1b of the battery body 1. It is affixed to the other surface 32 of the frame 30.

  The third conductive pressure-sensitive adhesive film 61 and the fourth conductive pressure-sensitive adhesive film 62 are formed by, for example, laminating a pressure-sensitive resin layer formed by dispersing conductive fine particles in a pressure-sensitive resin and a metal foil. It is configured. Examples of the conductive fine particles of the adhesive resin layer include metal particles such as Ni, particles obtained by coating a metal on nonconductive particles, and carbon particles. The adhesive resin is a resin (adhesive) that can disperse conductive fine particles and exhibits adhesiveness. Examples of such adhesive resins include (meth) acrylic thermoplastic resins (acrylic adhesives). The metal foil is an aluminum foil or the like. As for the 3rd conductive adhesive film 61 and the 4th conductive adhesive film 62, only one side (surface on the opposite side to the metal foil side) has adhesiveness. The adhesive surfaces (that is, adhesive resin layers) of the third conductive adhesive film 61 and the fourth conductive adhesive film 62 are attached to the positive electrode layer 11 and the negative electrode layer 13, respectively.

Next, a manufacturing method of the all solid state lithium ion battery according to the present embodiment will be described.
6 (a) to 6 (e) and FIGS. 7 (a) to 7 (c) are cross-sectional views showing a series of steps in the method for manufacturing an all solid-state lithium ion battery according to this embodiment.

  First, as shown to Fig.6 (a), the solid electrolyte layer 12 is produced by press-molding the powder material of the solid electrolyte layer 12. FIG.

  Next, as shown in FIG. 6B, the powder material of the negative electrode layer 13 is laminated on the previously produced solid electrolyte layer 12, and the powder material is press-molded. Thereby, the negative electrode layer 13 is integrally formed with the solid electrolyte layer 12.

  Next, as shown in FIG. 6C, the positive electrode layer 11 is integrated with the third conductive adhesive film 61 by pressing the powder material of the positive electrode layer 11 against the third conductive adhesive film 61. Mold. At this time, the third conductive adhesive film 61 functions as a support body that suppresses the collapse of the positive electrode layer 11.

  Next, as shown in FIG. 6D, the positive electrode layer 11 and the third conductive adhesive film 61 are stacked on the solid electrolyte layer 12 integrated with the negative electrode layer 13, and the outside of the negative electrode layer 13. A fourth conductive adhesive film 62 is disposed on the surface 13a side, and the third conductive adhesive film 61, the positive electrode layer 11, the solid electrolyte layer 12, the negative electrode layer 13, and the fourth conductive adhesive film 62 are pressed. Thus, the negative electrode layer 13 is integrated with the fourth conductive adhesive film 62 and the positive electrode layer 11 is integrated with the solid electrolyte layer 12. Thus, the battery body 1 is obtained in which the third conductive adhesive film 61, the positive electrode layer 11, the solid electrolyte layer 12, the negative electrode layer 13, and the fourth conductive adhesive film 62 are laminated in this order.

Next, the frame 30 is prepared.
In addition, a first current collector layer 51 and a second current collector layer 52 are prepared, and on one surface of the first current collector layer 51, a first current collector layer 51 having the same shape and size as the first current collector layer 51 is prepared. A first conductive adhesive film 41 is attached, and a second conductive adhesive film 42 having the same shape and size as the second current collector layer 52 is attached to the other surface of the second current collector layer 52.

  Next, as shown in FIG. 7A, the other end of the through hole 33 is sealed by attaching a second conductive adhesive film 42 to the other surface 32 of the frame 30.

  Next, as shown in FIG. 7B, the battery body 1 is inserted into the through hole 33 of the frame body 30. At this time, the 2nd electroconductive adhesive film 42 is affixed on the surface on the opposite side to the battery element 10 side in the 4th electroconductive adhesive film 62, ie, the other surface 1b of the battery main body 1. FIG.

  Next, as shown in FIG. 7C, the surface of the third conductive adhesive film 61 opposite to the battery element 10 side, that is, one surface 1 a of the battery body 1 and one surface 31 of the frame 30. Then, one end of the through hole 33 is sealed by attaching the first conductive pressure-sensitive adhesive film 41. Thus, the all solid-state lithium ion battery 100 is obtained.

  According to the second embodiment as described above, the following effects can be obtained in addition to the same effects as those of the first embodiment.

  In the present embodiment, the all-solid-state lithium ion battery 100 includes a third conductive adhesive film 61 attached to the positive electrode layer 11 and a fourth conductive adhesive film 62 attached to the negative electrode layer 13. Have. Therefore, the third conductive pressure-sensitive adhesive film 61 functions as a support that suppresses the collapse of the positive electrode layer 11, and the fourth conductive pressure-sensitive adhesive film 62 functions as a support that suppresses the collapse of the negative electrode layer 13. 11 and the collapse of the negative electrode layer 13 are suppressed. For this reason, even if the battery body 1 has a large size (large area), the battery body 1 can have a stable structure.

In particular, after the positive electrode layer 11 is formed by pressing against the third conductive adhesive film 61, the positive electrode layer 11, the solid electrolyte layer 12 and the negative electrode layer 13 are pressed and integrated. It can suppress that the positive electrode layer 11 collapses.
Further, when the positive electrode layer 11, the solid electrolyte layer 12 and the negative electrode layer 13 are integrated by pressing, the fourth conductive adhesive film 62 is disposed on the opposite side of the negative electrode layer 13 from the solid electrolyte layer 12 side. Thus, the negative electrode layer 13 can be prevented from collapsing during the pressing.

[Third Embodiment]
FIG. 8A is a cross-sectional view of the all-solid-state lithium ion battery 100 according to the third embodiment, and FIG. 8B is a frame of the all-solid-state lithium ion battery 100 according to the third embodiment. It is a top view. FIG. 8A shows a cross section at a position corresponding to the line AA shown in FIG. The all-solid-state lithium ion battery 100 according to this embodiment is different from the all-solid-state lithium ion battery 100 according to the above-described second embodiment in the points described below. It is comprised similarly to the all-solid-state type lithium ion battery 100 which concerns on this embodiment.

In the case of the present embodiment, as shown in FIGS. 8A and 8B, a plurality of through holes 33 are formed in the frame 30. And as shown to Fig.8 (a), the battery main body 1 is accommodated in each of the some through-hole 33, respectively. The first conductive resin layer (for example, the first conductive adhesive film 41) is bonded to one surface 1a of each battery body 1 to electrically connect the positive electrode layers 11 of each battery body 1 to each other. At the same time, one end of each of the plurality of through holes 33 is collectively sealed. The second conductive resin layer (for example, the second conductive adhesive film 42) is bonded to the other surface 1b of each battery body 1 to electrically connect the negative electrode layers 13 of each battery body 1 to each other. In addition, the other ends of the plurality of through holes 33 are collectively sealed.
That is, in the case of the present embodiment, the plurality of battery main bodies 1 are connected in parallel to each other by the first conductive resin layer and the second conductive resin layer.

  More specifically, for example, the first conductive resin layer is the first conductive adhesive film 41, and the first conductive adhesive film 41 is attached to one surface 1 a of each battery body 1, The positive electrode layers 11 of the battery body 1 are electrically connected to each other. The second conductive resin layer is a second conductive pressure-sensitive adhesive film 42, and the second conductive pressure-sensitive adhesive film 42 is attached to the other surface 1 b of each battery main body 1, and the negative electrode layer of each battery main body 1. 13 are electrically connected to each other.

According to the third embodiment as described above, the same effects as those of the second embodiment can be obtained.
In addition, since the plurality of battery main bodies 1 are connected to each other in parallel by the first conductive resin layer and the second conductive resin layer, the capacity of the entire all-solid-state lithium ion battery 100 is the above-described second capacity. More than the embodiment.

  In the third embodiment, the example in which the battery body 1 includes the third conductive pressure-sensitive adhesive film 61 and the fourth conductive pressure-sensitive adhesive film 62 has been described as in the second embodiment. Similarly to the first embodiment, the battery body 1 may not have the third conductive adhesive film 61 and the fourth conductive adhesive film 62.

[Fourth Embodiment]
FIG. 9 is a cross-sectional view of an all solid-state lithium ion battery 100 according to the fourth embodiment. The all-solid-state lithium ion battery 100 according to this embodiment is different from the all-solid-state lithium ion battery 100 according to the above-described third embodiment in the points described below. It is comprised similarly to the all-solid-state type lithium ion battery 100 which concerns on this embodiment.

In each of the above embodiments, the example in which the battery main body 1 has a single (one) battery element 10 has been described. However, in the case of the present embodiment, the battery main body 1 includes a plurality of (for example, 2) Battery element 10.
The plurality of battery elements 10 constituting the battery body 1 are electrically connected to each other via the series connection conductive resin layer 80. That is, among the plurality of battery elements 10 constituting the battery body 1, the positive electrode layer 11 and the negative electrode layer 13 of the battery elements 10 adjacent to each other are electrically connected to each other via the conductive resin layer 80 for series connection. Has been.

In the case of this embodiment, the third conductive adhesive film 61 and the fourth conductive adhesive film 62 are respectively formed on the front and back surfaces of each battery element 10 as in the second and third embodiments. It is pasted.
The series-connected conductive resin layer 80 includes, for example, the third conductive adhesive film 61 attached to one of the two battery elements 10 constituting one battery body 1 and the other. The third conductive adhesive film 61 and the fourth conductive adhesive film 62 are electrically connected to each other by being interposed between the fourth conductive adhesive film 62 attached to the battery element 10. doing.

  The conductive resin layer 80 for series connection is, for example, a conductive adhesive film having adhesiveness on both sides. The series-connected conductive resin layer 80 has the same structure as the first conductive adhesive film 41 and the second conductive adhesive film 42. That is, the conductive resin layer 80 for series connection is configured, for example, by dispersing conductive fine particles in an adhesive resin, and both surfaces thereof are adhesive. The conductive resin layer 80 for series connection includes a third conductive adhesive film 61 attached to one battery element 10 of the two battery elements 10 constituting one battery body 1, and the other battery element 10. The third conductive pressure-sensitive adhesive film 61 and the fourth conductive pressure-sensitive adhesive film 62 are electrically connected to each other.

  FIGS. 10A and 10B are cross-sectional views showing a process of manufacturing the battery body 1 in a series of processes in the method for manufacturing an all solid-state lithium ion battery according to the fourth embodiment.

  As shown to Fig.10 (a), the two battery elements 10 by which the 3rd electroconductive adhesive film 61 and the 4th electroconductive adhesive film 62 were affixed on the surface of the front and back, respectively are prepared. And among these battery elements 10, one third conductive pressure-sensitive adhesive film 61 and the other fourth conductive pressure-sensitive adhesive film 62 are mutually connected via a series-connected conductive resin layer 80 made of a conductive pressure-sensitive adhesive film. Connecting. Thereby, as shown in FIG.10 (b), the battery main body 1 is obtained.

According to the fourth embodiment as described above, the same effects as those of the third embodiment can be obtained.
Moreover, since each battery main body 1 has the some battery element 10 mutually connected in series, the voltage which the all-solid-state type lithium ion battery 100 outputs increases more than said 3rd Embodiment.

In the fourth embodiment, the example in which the plurality of battery main bodies 1 are connected in parallel to each other is described as in the third embodiment. However, the first and second embodiments described above are described. Similar to the embodiment, the all-solid-state lithium ion battery 100 may have only one battery body 1.
Moreover, in said 4th Embodiment, although the battery main body 1 demonstrated the example which has the 3rd electroconductive adhesive film 61 and the 4th electroconductive adhesive film 62, a battery similarly to said 1st Embodiment. The main body 1 may not have the third conductive adhesive film 61 and the fourth conductive adhesive film 62.

[Fifth Embodiment]
Each of FIGS. 11A to 11D is a cross-sectional view of an all-solid-state lithium ion battery 100 according to the fifth embodiment.

  In the case of this embodiment, the sealing resin part 20 of the all-solid-state lithium ion battery 100 further includes a resin peripheral sealing part 70. The peripheral sealing portion 70 collectively seals the outer peripheral end surface 41 a of the first conductive adhesive film 41, the outer peripheral surface 34 of the frame 30, and the outer peripheral end surface 42 a of the second conductive adhesive film 42. Yes.

FIG. 11A shows an example in which a peripheral sealing portion 70 is added to the all solid-state lithium ion battery 100 according to the first embodiment. FIG. 11B shows an example in which a peripheral sealing portion 70 is added to the all solid-state lithium ion battery 100 according to the second embodiment. FIG. 11C shows an example in which a peripheral sealing portion 70 is added to the all solid-state lithium ion battery 100 according to the third embodiment. FIG. 11D shows an example in which a peripheral sealing portion 70 is added to the all solid-state lithium ion battery 100 according to the fourth embodiment.
More specifically, the peripheral sealing portion 70 includes the outer peripheral end surface 51a of the first current collector layer 51, the outer peripheral end surface 41a of the first conductive adhesive film 41, the outer peripheral surface 34 of the frame 30, and the second The outer peripheral end surface 42a of the conductive adhesive film 42 and the outer peripheral end surface 52a of the second current collector layer 52 are collectively sealed.

  The peripheral sealing portion 70 is configured, for example, by applying and curing an epoxy resin. However, the peripheral sealing portion 70 may be a photocurable acrylic resin or an adhesive film.

According to this embodiment, in addition to the same effects as the above-described embodiments, the following effects can be obtained.
In the case of the present embodiment, the all solid-state lithium ion battery 100 has the peripheral sealing portion 70, so that moisture in the atmosphere is in contact with the first conductive resin layer (first conductive adhesive film 41) and the second. It is possible to suppress intrusion into the through hole 33 through the conductive resin layer (second conductive adhesive film 42). Therefore, the all solid-state lithium ion battery 100 can have a more stable structure.

  In each of the above embodiments, the example in which the first conductive resin layer and the second conductive resin layer are each a conductive adhesive film has been described. However, the first conductive resin layer and the second conductive resin layer are respectively The conductive resin may be applied to the battery body 1 (or to the battery body 1 and the frame 30) and cured. Alternatively, the first conductive resin layer and the second conductive resin layer may be formed by attaching a preliminarily molded conductive resin to the battery body 1 (or to the battery body 1 and the frame body 30) with a conductive adhesive. It may be attached.

  In the example, the all-solid-state lithium ion battery 100 according to the fourth embodiment was manufactured under the following conditions.

<Third conductive adhesive film and fourth conductive adhesive film>
The 3rd conductive adhesive film 61 and the 4th conductive adhesive film 62 consist of a conductive adhesive film in which one side has adhesiveness. This conductive adhesive film is obtained by forming an adhesive resin layer having a thickness of 0.035 mm on one surface of an Al foil having a thickness of 0.05 mm, and has a total thickness of 0.085 mm. The adhesive resin layer is constituted by dispersing Ni particles as conductive fine particles in the adhesive resin, and has conductivity. The third conductive pressure-sensitive adhesive film 61 and the fourth conductive pressure-sensitive adhesive film 62 are obtained by cutting a conductive pressure-sensitive adhesive film having such a structure into a circle having a diameter of 13 mm.

<Positive electrode layer>
The material of the positive electrode layer 11 is 34 mg of a powder material obtained by mixing amorphous Li ₆ MoS ₆ powder, acetylene black powder, and Li ₁₁ P ₃ S ₁₂ powder in a weight ratio of 1: 1: 1. Using.
The positive electrode layer 11 was formed integrally with the third conductive adhesive film 61 by pressing the powder material of the positive electrode layer 11 against the surface on the adhesive layer side of the conductive adhesive film 61. This press molding was performed at room temperature, and the press pressure was 250 MPa. The positive electrode layer 11 was a disk shape having the same diameter (13 mm) as the third conductive adhesive film 61.
The total thickness of the positive electrode layer 11 and the third conductive adhesive film 61 was 150 μm.

<Solid electrolyte layer>
The solid electrolyte layer 12 was produced by press-molding 400 mg of Li ₁₁ P ₃ S ₁₂ glass powder. The solid electrolyte layer 12 was a disk having a diameter of 14 mm. This press molding was performed at room temperature, and the press pressure was 377 MPa. The thickness of the solid electrolyte layer 12 was 200 μm.

<Negative electrode layer>
As a material for the negative electrode layer 13, 14 mg of a powder material obtained by mixing Li ₂₂ Si ₅ powder, graphite powder, and Li ₁₁ P ₃ S ₁₂ powder at a weight ratio of 27:53:20 was used. . The negative electrode layer 13 was press-molded integrally with the solid electrolyte layer 12 by laminating and pressing the powder material of the negative electrode layer 13 on the solid electrolyte layer 12 after molding.
This press molding was performed at room temperature, and the press pressure was 377 MPa. The negative electrode layer 13 was a disk shape having the same diameter (14 mm) as the solid electrolyte layer 12. The total thickness of the negative electrode layer 13 and the conductive adhesive film 62 was 150 μm.

<Battery element>
The 3rd conductive adhesive film 61, the positive electrode layer 11, the solid electrolyte layer 12, the negative electrode layer 13, and the 4th conductive adhesive film 62 are laminated | stacked in this order. In addition, the 4th electroconductive adhesive film 62 arrange | positions the surface at the side of an adhesive layer to the negative electrode layer 13 side. And the battery element 10 is integrally formed by pressing the laminated body of the 3rd electroconductive adhesive film 61, the positive electrode layer 11, the solid electrolyte layer 12, the negative electrode layer 13, and the 4th electroconductive adhesive film 62. FIG. A total of eight battery elements 10 were produced. The thickness of the battery element 10 was 500 μm.

<Conductive resin layer for series connection>
The conductive resin layer for series connection 80 is made of a conductive adhesive film having adhesiveness on both sides. This conductive adhesive film is made of an adhesive resin layer having a thickness of 0.035 mm. This adhesive resin layer is constituted by dispersing Ni particles as conductive fine particles in an adhesive resin, and has conductivity. The conductive resin layer 80 for series connection is obtained by cutting a conductive adhesive film having such a structure into a circle having a diameter of 13 mm.

<Battery body>
By stacking the two battery elements 10 with the series-connected conductive resin layer 80 in between, the two battery elements 10 were connected in series by the series-connected conductive resin layer 80 to produce the battery body 1. . That is, the conductive resin layer 80 for series connection is formed on the third conductive adhesive film 61 of one of the two battery elements 10 and the fourth conductive adhesive film 62 of the other battery element 10. The battery body 1 was produced by pasting. A total of four battery bodies 1 were produced. The thickness of the battery body 1 was 1 mm.

<Frame body>
As the frame 30, a PET film having a side of 40 mm square (rounded corners) and a thickness of 1 mm and four through-holes 33 having a diameter of 15 mm formed symmetrically in the front-rear and left-right directions was used.

<Current collector layer>
As the first current collector layer 51 and the second current collector layer 52, SUS304 foil having a thickness of 8 μm was used. The planar shapes of the first current collector layer 51 and the second current collector layer 52 were the same as the outer shape of the frame 30 in plan view.

<First conductive adhesive film and second conductive adhesive film>
The first conductive pressure-sensitive adhesive film 41 and the second conductive pressure-sensitive adhesive film 42 are made of a conductive pressure-sensitive adhesive film having the same structure as the conductive resin layer 80 for series connection, and the first current collector layer 51 and the second current collector layer 52. The same plane shape is cut out. The first conductive adhesive film 41 was attached to one surface of the first current collector layer 51, and the second conductive adhesive film 42 was attached to one surface of the second current collector layer 52.

<All-solid-state lithium-ion battery>
A second current collector layer 52 was attached to the other surface 32 of the frame 30 via a second conductive adhesive film 42.
Then, the battery body 1 was inserted into each of the four through holes 33 of the frame body 30. Here, the 2nd electrical power collector layer 52 was affixed on the other surface 1b of each battery main body 1 through the 2nd electroconductive adhesive film 42. As shown in FIG.
And the 1st electrical power collector layer 51 was affixed on the one surface 31 of the frame 30 via the 1st electroconductive adhesive film 41. As shown in FIG. Here, the 1st electrical power collector layer 51 was affixed on the one surface 1a of each battery main body 1 via the 1st electroconductive adhesive film 41, too.

  Thus, an all solid-state lithium ion battery 100 having a schematic structure shown in FIG. 9 was obtained. The all-solid-state lithium ion battery 100 has a square shape with rounded corners having a thickness of 1 mm, a side of 40 mm, and a weight of 2.7 g.

The all-solid-state lithium ion battery 100 produced in this way exhibited the following characteristics.
Voltage: 4V
Capacity: 2.6 mAh
Energy density: 3.3 Wh / kg
5.6Wh / L

DESCRIPTION OF SYMBOLS 1 Battery main body 1a One surface 1b One surface 10 Battery element 11 Positive electrode layer 11a Outer surface 12 Solid electrolyte layer 13 Negative electrode layer 13a Outer surface 20 Sealing resin part 30 Frame body 31 One surface 32 Other surface 33 Through-hole 33a Inner peripheral wall 34 Outer peripheral surface 41 First conductive adhesive film (first conductive resin layer)
41a Outer peripheral end face 42 Second conductive adhesive film (second conductive resin layer)
42a Outer peripheral surface 51 First current collector layer 51a Outer peripheral surface 52 Second current collector layer 52a Outer peripheral surface 61 Third conductive adhesive film 62 Fourth conductive adhesive film 70 Peripheral sealing part 80 Conductive resin layer for series connection 100 All solid-state lithium-ion battery

Claims (14)

A battery body including a battery element in which a positive electrode layer, a solid electrolyte layer, and a negative electrode layer are laminated in this order;
A sealing resin portion sealing the battery body;
With
The sealing resin portion is
A frame made of resin, having a through hole penetrating the front and back, and housing the battery body in the through hole; and
A first conductive resin layer bonded to one surface of the battery body and sealing one end of the through hole;
A second conductive resin layer bonded to the other surface of the battery body and sealing the other end of the through hole;
Have
The battery body is an all-solid-state lithium ion battery accommodated in the through hole in a state where at least the battery element is not bonded to the inner peripheral wall surface of the through hole. The first conductive resin layer is bonded to one surface of the battery body and one surface of the frame, and seals one end of the through hole.
The said 2nd conductive resin layer is joined to the other surface of the said battery main body, and the other surface of the said frame, and has sealed the other end of the said through-hole. All solid-state lithium-ion battery. A plurality of the through holes are formed in the frame body,
The battery body is accommodated in each of the plurality of through holes,
The first conductive resin layer is bonded to one surface of each battery body to electrically connect the positive electrode layers of each battery body to each other, and one end of each of the plurality of through holes is connected to the first conductive resin layer. Sealed together,
The second conductive resin layer is bonded to the other surface of each battery body to electrically connect the negative electrode layers of the battery bodies to each other, and the other end of each of the plurality of through holes. The all-solid-state lithium ion battery according to claim 2, which is sealed together. The first conductive resin layer is a first conductive adhesive film attached to one surface of the battery body and one surface of the frame,
4. The entire conductive resin layer according to claim 2, wherein the second conductive resin layer is a second conductive pressure-sensitive adhesive film attached to the other surface of the battery body and the other surface of the frame body. Solid lithium ion battery. Each of the first conductive adhesive film and the second conductive adhesive film has adhesiveness on both sides,
The all solid-state lithium ion battery includes a first current collector layer attached to a surface of the first conductive adhesive film opposite to the battery body side, and the battery in the second conductive adhesive film. The all-solid-state lithium ion battery according to claim 4, further comprising: a second current collector layer attached to a surface opposite to the main body side.   The sealing resin portion is made of a resin that collectively seals the outer peripheral end surface of the first conductive resin layer, the outer peripheral surface of the frame, and the outer peripheral end surface of the second conductive resin layer. The all-solid-state lithium ion battery according to claim 1, further comprising a peripheral sealing portion.   The sealing resin portion includes an outer peripheral end surface of the first current collector layer, an outer peripheral end surface of the first conductive adhesive film, an outer peripheral surface of the frame body, and an outer peripheral end surface of the second conductive adhesive film. The all-solid-state lithium ion battery according to claim 5, further comprising a resin-made peripheral sealing portion that collectively seals the outer peripheral end surface of the second current collector layer. A battery main body including a battery element in which a positive electrode layer, a solid electrolyte layer, and a negative electrode layer are laminated in this order, and at least the battery in the through hole of the resin frame in which a through hole penetrating the front and back is formed. A step of accommodating the element in a non-bonded state with respect to the inner peripheral wall surface of the through hole;
Sealing one end of the through hole with the first conductive resin layer;
Bonding the first conductive resin layer to one surface of the battery body;
Sealing the other end of the through hole with a second conductive resin layer;
Bonding the second conductive resin layer to the other surface of the battery body;
A method for producing an all-solid-state lithium ion battery. In the step of sealing one end of the through hole, the first conductive resin layer is bonded to one surface of the frame body,
The method for producing an all solid-state lithium ion battery according to claim 8, wherein in the step of sealing the other end of the through hole, the second conductive resin layer is joined to the other surface of the frame. A plurality of the through holes are formed in the frame body,
In the step of housing the battery body, the battery body is housed in each of the plurality of through holes,
In the step of sealing one end of the through hole, one end of each of the plurality of through holes is collectively sealed by the first conductive resin layer,
In the step of bonding the first conductive resin layer to one surface of the battery body, the first conductive resin layer is bonded to one surface of each battery body, and the positive electrode layer of each battery body is bonded. Electrically connected to each other,
In the step of sealing the other end of the through hole, the other end of each of the plurality of through holes is collectively sealed by the second conductive resin layer,
In the step of bonding the second conductive resin layer to the other surface of the battery body, the second conductive resin layer is bonded to the other surface of each battery body, and the negative electrode layer of each battery body is bonded. The manufacturing method of the all-solid-state type lithium ion battery of Claim 9 electrically connected mutually. The first conductive resin layer is a first conductive adhesive film,
The second conductive resin layer is a second conductive adhesive film,
In the step of sealing one end of the through hole, the first conductive adhesive film is attached to one surface of the frame,
In the step of bonding the first conductive resin layer to one surface of the battery body, the first conductive adhesive film is attached to one surface of the battery body,
In the step of sealing the other end of the through hole, the second conductive adhesive film is attached to the other surface of the frame,
The all-solid-state type according to claim 9 or 10, wherein in the step of bonding the second conductive resin layer to the other surface of the battery body, the second conductive adhesive film is attached to the other surface of the battery body. A method for producing a lithium ion battery. Each of the first conductive adhesive film and the second conductive adhesive film has adhesiveness on both sides,
The manufacturing method further includes:
A step of attaching a first current collector layer to a surface of the first conductive adhesive film opposite to the battery body side;
A step of attaching a second current collector layer to a surface of the second conductive adhesive film opposite to the battery body side;
The manufacturing method of the all-solid-state lithium ion battery of Claim 11 provided with.   In the manufacturing method, the outer peripheral end surface of the first conductive resin layer, the outer peripheral surface of the frame body, and the outer peripheral end surface of the second conductive resin layer are further integrated by a peripheral sealing portion made of resin. The manufacturing method of the all-solid-state type lithium ion battery as described in any one of Claims 8 thru | or 12 provided with the process sealed.   The manufacturing method further includes an outer peripheral end face of the first current collector layer, an outer peripheral end face of the first conductive adhesive film, an outer peripheral face of the frame, and an outer peripheral end face of the second conductive adhesive film. The manufacturing method of the all-solid-state lithium ion battery of Claim 11 provided with the process of sealing collectively the outer peripheral end surface of a said 2nd collector layer with the peripheral sealing part which consists of resin.

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