JP5549597B2 - Electrode plate manufacturing method, electrode plate, battery, vehicle and battery-equipped device - Google Patents

Description

  The present invention relates to a method for manufacturing an electrode plate including an electrode substrate and an active material layer formed on the main surface of the substrate, the electrode plate, a battery, a vehicle, and a battery-mounted device.

An electrostatic screen printing method is known as a method for forming a film on a substrate. In the electrostatic screen printing method, a high voltage (for example, 500 V or more) is applied between an electrostatic screen having a plurality of eyes and a coated surface of a substrate to generate an electrostatic field, and charged particles are This is a technique in which an electrostatic screen is charged into an electrostatic field from the eyes of the electrostatic screen, and particles are scattered toward the surface to be coated by Coulomb force and deposited (coated) on the surface to be coated.
In Patent Document 1, after applying a binder (binder resin) in advance to an electrode structure (electrode substrate), an electrode material (active material particles, conductive assistant, etc.) is applied using an electrostatic screen printing method. Thus, a method for producing an electrode (electrode plate) for forming (depositing) an electrode material layer (active material layer) is mentioned.

JP 2004-281221 A

  However, in patent document 1, since electrode material (active material particle etc.) is deposited on binder (binder resin), binder resin cannot intervene between active material particles appropriately, for example. For this reason, there exists a possibility that the binding force of the active material particles in an electrode material layer (active material layer) may become weak.

  The present invention has been made in view of such problems, and provides an electrode plate manufacturing method that improves the binding force between active material particles in an active material layer while using an electrostatic screen printing method. With the goal. Another object of the present invention is to provide an electrode plate having an active material layer in which active material particles are well bound, a battery using the electrode plate, a vehicle equipped with the battery, and a battery-equipped device.

According to an embodiment of the present invention, the solution includes an active electrode substrate, an active material particle formed on the main surface of the electrode substrate, an active material layer binder resin, and a solid electrolyte. An active material layer having a solid electrolyte particle for a material layer, and a method for producing an electrode plate, wherein the active material layer, the active material layer resin particle comprising the active material layer binder resin, and the active material layer the use solid electrolyte particles, the pre-mixed mixture particles, skipping by an electric field is charged by passing through the eyes of the screen, by the electrostatic screen printing Ru is deposited on the substrate main surface of the electrode substrate, predetermined Forming a non-compressed active material layer in a shape, compressing while heating the uncompressed active material layer formed in the layer forming step, and the active material particles and the active material layer by the binder resin for active material layer Life The electrode plate has a solid electrolyte layer comprising solid electrolyte particles for solid electrolyte layer and binder resin for solid electrolyte layer on the active material layer. After the hot-pressing step, a mixed particle group in which the solid electrolyte layer resin particles made of the solid electrolyte layer binder resin and the solid electrolyte particles for the solid electrolyte layer are mixed in advance is added to the screen. An electrode plate comprising an uncompressed solid electrolyte layer forming step of forming an uncompressed solid electrolyte layer in a predetermined shape by an electrostatic screen printing method in which the material is passed, charged, blown by an electric field, and deposited on the active material layer It is a manufacturing method.

In the electrode plate manufacturing method of the present invention, a mixed particle group in which active material particles and resin particles are mixed in advance is deposited on the main surface of the substrate by electrostatic screen printing. For this reason, compared with the case where active material particles are deposited on the resin particles by the electrostatic screen method, the active material particles and the resin particles can be uniformly dispersed in the uncompressed active material layer. Therefore, in the active material layer formed using this uncompressed active material layer, the active material particles can be appropriately bound together by the binder resin. Thus, an electrode plate with improved binding force between the active material particles can be produced.
In addition, the electrode plate manufacturing method of the present invention includes a hot-pressing step of compressing the uncompressed active material layer formed in the layer forming step while heating. For this reason, it is possible to soften and deform the resin particles in the uncompressed active material layer and to form an active material layer in which the ratio of the active material particles to the binder resin is constant at any part as viewed in the thickness direction. Therefore, it is possible to manufacture an electrode plate in which the active material particles are reliably bound to each other by heat-sealing the binder resin.

In addition to the active material particles and the resin particles, the mixed particle group may contain particles such as a conductive additive. Moreover, as an electrode substrate, metal foil, such as aluminum foil, copper foil, nickel foil, stainless steel foil, a metal plate, the resin film which has electroconductivity, etc. can be used, for example.
Further, as the binder resin, it is preferable to use a resin having thermoplasticity. Specifically, a resin having a characteristic capable of binding active material particles to each other by thermal fusion in a hot press process, for example, polyvinylidene fluoride. (Hereinafter also referred to as PVDF), polytetrafluoroethylene (PTFE), tetrafluoroethylene / hexafluoropropylene / vinylidene fluoride copolymer, propylene hexafluoride / vinylidene fluoride copolymer, tetrafluoride Examples thereof include fluorine resins such as ethylene / perfluorovinyl ether copolymers and rubber resins such as styrene butadiene rubber (SBR). Furthermore, examples of the resin particles include those obtained by granulating the above-described binder resin so that they can be used in an electrostatic screen printing method.

Et al is a manufacturing method of the above-described electrode plate, serial solid electrolyte layer for a solid electrolyte particles, the a solid electrolyte particles of the same material for the active material layer, the solid electrolyte layer resin particles and the solid electrolyte The layer binder resin may be a method for producing an electrode plate made of the same material as the active material layer resin particles and the active material layer binder resin.
Furthermore, in the method for manufacturing the electrode plate described above, the uncompressed solid electrolyte layer formed in the uncompressed solid electrolyte layer forming step is compressed while being heated, and the solid electrolyte layer is formed by the binder resin for the solid electrolyte layer. The solid electrolyte layer may be bonded to each other to form the solid electrolyte layer, and a method for producing an electrode plate including a solid electrolyte layer hot-pressing step may be used.
Furthermore, in the method for manufacturing the electrode plate described above, the electrode plate includes a reverse polarity active material particle having a polarity opposite to that of the active material particle, a binder resin for the reverse polarity active material layer, and a solid for the reverse polarity active material layer. It has a reverse polarity active material layer made of electrolyte particles on the solid electrolyte layer, and comprises the reverse polarity active material particles and the binder resin for the reverse polarity active material layer after the solid electrolyte layer hot-pressing step. The mixed particle group in which the resin particles for the reverse polarity active material layer and the solid electrolyte particles for the reverse polarity active material layer are mixed in advance is charged by passing through the eyes of the screen and is blown by an electric field, and then on the solid electrolyte layer. by an electrostatic screen printing Ru is deposited, it may be set to be uncompressed opposite polarity active material layer forming step electrode plate manufacturing method of comprising forming the uncompressed opposite polarity active material layer in a predetermined shape.
Furthermore, in the method for producing an electrode plate described above, the solid electrolyte particles for the reverse polarity active material layer are the same material as the solid electrolyte particles for the active material layer and the solid electrolyte particles for the solid electrolyte layer, and the reverse The resin particles for the polar active material layer and the binder resin for the reverse polarity active material layer are the resin particles for the active material layer and the resin particles for the solid electrolyte layer, and the binder resin for the active material layer and the solid electrolyte layer. A method of manufacturing an electrode plate made of the same material as the binder resin is preferable.
Furthermore, in the above-described electrode plate manufacturing method, the uncompressed reverse polarity active material layer formed in the uncompressed reverse polarity active material layer forming step is compressed while being heated, and the binder for the reverse polarity active material layer is formed. Production of an electrode plate comprising a reverse-polarity active material layer hot-pressing step in which the reverse-polarity active material layer and the solid electrolyte particles for the reverse-polarity active material layer are bound together by a resin to form the reverse-polarity active material layer It would be better to do it.

  Furthermore, in any of the above-described electrode plate manufacturing methods, the electrode substrate may be a metal electrode plate manufacturing method.

By the way, as an electrode plate manufacturing method, active material particles and a binder are dispersed in a dispersion medium to form a paste, which is applied onto a metal foil as an electrode substrate, and then the dispersion medium is evaporated to form an active material layer. A method of forming is known.
However, in the method described above, the metal foil may be corroded by the applied paste. Specifically, for example, when a paste using water as a dispersion medium and a Li compound as active material particles is prepared and applied to an electrode substrate made of aluminum, the water as the dispersion medium is ionized and strong. Aluminum is corroded to show alkalinity. In addition, hydrogen gas is generated and pores remain in the active material layer after drying, resulting in a non-uniform active material layer, and the battery performance of the battery using this electrode plate is reduced. There is a risk of it.

  On the other hand, in the manufacturing method of this invention, since an electrode substrate consists of metals, favorable electroconductivity is obtained. In addition, since the electrostatic screen printing method is used and no dispersion medium is used, it is possible to prevent the occurrence of corrosion on the metal electrode substrate, thereby appropriately forming the active material layer on the electrode substrate.

Further, the solution in another aspect is for an active material layer comprising a conductive electrode substrate and active material particles, a binder resin for the active material layer, and a solid electrolyte formed on the substrate main surface of the electrode substrate. An active material layer having solid electrolyte particles, wherein the active material layer is formed into a predetermined shape using an electrostatic screen printing method, and the active material particles and the active material layer The ratio of the binder resin for the active material layer to the solid electrolyte particles for the active material layer is made constant in the thickness direction, and the active material particles and the solid electrolyte particles for the active material layer are thermally fused to each other. a layer for the binder resin, Ri Na and bound to each other, on the active material layer, and a solid electrolyte layer made of a binder resin and solid electrolyte particles for a solid electrolyte layer for a solid electrolyte layer, the solid electrolyte layer The electrostatic screen The solid electrolyte layer is formed in a predetermined shape, and the ratio of the solid electrolyte layer binder resin and the solid electrolyte layer solid electrolyte particles is made constant in the thickness direction, and the solid electrolyte layer This is an electrode plate in which the solid electrolyte particles are bound to each other by the heat-fused binder resin for a solid electrolyte layer .

In the electrode plate of the present invention, in the active material layer, the ratio of the active material particles to the binder resin is made constant in the thickness direction, and the active material particles are bonded to each other by the binder resin thermally fused. . For this reason, it can be set as the electrode plate which improved the binding force of active material particles.
Et al is directed to a above electrode plates, the solid electrolyte layer for a solid electrolyte particles, the a solid electrolyte particles of the same material for the active material layer, the binder resin for the solid electrolyte layer, for the active material layer An electrode plate made of the same material as the binder resin is preferable.
Furthermore, in the electrode plate described above, on the solid electrolyte layer, a reverse polarity active material particle having a reverse polarity to the active material particles, a binder resin for the reverse polarity active material layer, and a solid electrolyte particle for the reverse polarity active material layer The reverse polarity active material layer is formed in a predetermined shape using an electrostatic screen printing method, and the reverse polarity active material particles and the reverse polarity active material The ratio of the binder resin for the layer and the solid electrolyte particle for the reverse polarity active material layer is made constant in the thickness direction, and the reverse polarity active material particle and the solid electrolyte particle for the reverse polarity active material layer are The electrode plates are preferably bonded to each other by the heat-fused binder resin for the reverse polarity active material layer.
Furthermore, in the above electrode plate, the solid electrolyte particles for the reverse polarity active material layer are the same material as the solid electrolyte particles for the active material layer and the solid electrolyte particles for the solid electrolyte layer, and the reverse polarity active material The layer binder resin is preferably an electrode plate made of the same material as the active material layer binder resin and the solid electrolyte layer binder resin.

  Furthermore, the solution in another aspect is a battery using any of the electrode plates described above.

  In the battery of the present invention, since the electrode plate described above is used, the binding force between the active material particles is high in the positive electrode active material layer or the negative electrode active material layer. For example, due to expansion / compression due to charge / discharge or vibration during use. Thus, it is possible to provide a battery that suppresses problems such as dropping and peeling of the active material particles.

  As the battery, for example, a positive electrode plate in which a positive electrode active material layer is formed on a positive electrode substrate and a negative electrode plate in which a negative electrode active material layer is formed on a negative electrode substrate are used. Examples thereof include a battery used, and a bipolar battery using an electrode plate in which a positive electrode active material layer is formed on one substrate main surface of an electrode substrate and a negative electrode active material layer is formed on the other substrate main surface. It is done.

  Furthermore, the solution in another aspect is a vehicle equipped with the battery described above.

  In the vehicle of the present invention, since the above-described battery is mounted, it is possible to provide a vehicle that can be used stably while suppressing problems caused by the binding force in the active material layer.

  The vehicle may be a vehicle that uses electric energy from a battery for all or part of its power source. For example, an electric vehicle, a hybrid vehicle, a plug-in hybrid vehicle, a hybrid railway vehicle, a forklift, an electric Wheelchairs, electric assist bicycles, and electric scooters.

  Furthermore, the solution in another aspect is a battery-mounted device on which the above-described battery is mounted.

  In the battery-mounted device of the present invention, since the above-described battery is mounted, it is possible to provide a battery-mounted device that can be used stably while suppressing problems caused by the binding force in the active material layer.

  The battery-equipped device may be any device equipped with a battery and using it as at least one of the energy sources. For example, a battery such as a personal computer, a mobile phone, a battery-driven electric tool, an uninterruptible power supply, etc. Various household appliances, office equipment, and industrial equipment driven by

1 is a perspective view of a battery according to Reference Embodiment 1, Reference Embodiment 2, and Embodiment 1. FIG. 2 is a partial cross-sectional view of a battery according to Reference Embodiment 1 and Embodiment 1. FIG. It is a perspective view of the electric power generation element of the reference form 1 and Embodiment 1. FIG. It is a partial expanded sectional view (AA sectional drawing of FIG. 3) of the electric power generation element of the reference form 1. FIG. It is explanatory drawing of the layer formation process concerning the reference form 1 and the reference form 2, and a hot press process. It is explanatory drawing of the layer formation process concerning the reference form. It is a partial expanded sectional view (AA sectional drawing of FIG. 3) of the electric power generation element of Embodiment 1. FIG. It is a fragmentary sectional view of the battery concerning the reference form 2. It is a perspective view of the electric power generation element of the reference form 2. It is the elements on larger scale of the electric power generation element of the reference form 2 (BB sectional drawing of FIG. 9). It is explanatory drawing of the vehicle concerning Embodiment 2. FIG. It is explanatory drawing of the hammer drill concerning Embodiment 3. FIG.

(Reference form 1)
Next, Reference Embodiment 1 of the present invention will be described with reference to the drawings.
A perspective view of a battery 1 according to the first embodiment is shown in FIG. 1, and a partial cross-sectional view of the battery 1 is shown in FIG.
The battery 1 is a lithium ion secondary battery having a battery case 80 and a power generation element 10 accommodated in the battery case 80 (see FIGS. 1 and 2).

Among them, the battery case 80 includes a bottomed rectangular box-shaped battery case body 81 made of metal and having an open top, and a sealing lid 82 that is made of metal and closes the opening of the battery case body 81. (See FIG. 1).
Among these, from the sealing lid 82, the front end portion 71 </ b> A of the positive electrode current collecting member 71 made of aluminum and electrically connected to the positive electrode plate 20 of the power generation element 10 is also connected to the negative electrode plate 30 of the power generation element 10. 72A of the negative electrode current collection member 72 which consists of copper and which connected in general protrudes (refer FIG. 1, 2). An insulating member 75 made of an insulating resin is interposed between the sealing lid 82 and the positive electrode current collecting member 71 or the negative electrode current collecting member 72, respectively. Alternatively, the negative electrode current collecting member 72 is insulated.

  The power generation element 10 includes a positive electrode substrate 26 made of aluminum foil, a positive electrode plate 20 having a positive electrode active material layer 21 formed on the positive electrode substrate 26, a negative electrode substrate 36 made of copper foil, and the negative electrode It has the negative electrode plate 30 which has the negative electrode active material layer 31 formed on the board | substrate 36, and the separator 40 (refer FIG. 3). This power generation element 10 is formed by laminating a plurality of positive electrode plates 20 and negative electrode plates 30 in the laminating direction DL via a separator 40 therebetween (see FIGS. 3 and 4). Moreover, this electric power generation element 10 contains the electrolyte solution which is not shown in figure.

Among these, the positive electrode plate 20 is specifically a positive electrode active material made of lithium cobalt oxide (LiCoO ₂ ) on the first positive electrode substrate main surface 27 and the second positive electrode substrate main surface 28 forming both surfaces of the positive electrode substrate 26. A positive electrode active material layer 21 including particles 22 and a binder 23 made of PVDF is provided (see FIG. 4). Further, the positive electrode active material layer 21 includes conductive auxiliary agent particles 25 made of acetylene black in addition to the positive electrode active material particles 22 and the binder 23.
In the first embodiment, the weight ratio of the positive electrode active material layer 21 was set to positive electrode active material particles 22: binder 23: conductive aid particles 25 = 85: 5: 10.

Moreover, in the positive electrode active material layer 21, the ratio of the positive electrode active material particles 22 to the binder 23 is constant (same) in the thickness direction DT (the same direction as the above-described lamination direction DL, see FIGS. 3 and 4). Thus, the positive electrode active material particles 22 are bonded to each other by the heat-bonded binding material 23.
Thus, the positive electrode plate 20 with improved binding force between the positive electrode active material particles 22 can be obtained.

Further, the negative electrode plate 30 specifically includes negative electrode active material particles 32 made of graphite, and PVDF on the first negative electrode substrate main surface 37 and the second negative electrode substrate main surface 38 forming both surfaces of the negative electrode substrate 36. The negative electrode active material layer 31 including the binder 33 made of is formed (see FIG. 4).
The weight ratio of the negative electrode active material layer 31 was set to negative electrode active material particles 32: binder 33 = 95: 5.

Moreover, in the negative electrode active material layer 31, the ratio of the negative electrode active material particles 32 and the binder 33 is made constant (same) in the thickness direction DT (stacking direction DL), and the negative electrode active material particles 32 are made of each other. They are bonded to each other by the heat-bonded binding material 33.
Thus, the negative electrode plate 30 with improved binding force between the negative electrode active material particles 32 can be obtained.

  Further, in the battery 1 according to the first embodiment, since the positive electrode plate 20 and the negative electrode plate 30 described above are used, the positive electrode active material layer 21 has a high binding force between the positive electrode active material particles 22. Similarly, the negative electrode active material layer 31 has a high binding force between the negative electrode active material particles 32. For this reason, it can be set as the battery 1 which suppressed the malfunctions, such as dropping and peeling of the active material particle 22 and 32 by the expansion / compression of the active material layer 21 and 31 by charging / discharging, the vibration in use, etc., for example.

Next, a method for manufacturing the battery 1 according to the first embodiment will be described with reference to the drawings.
First, a layer forming process for forming the uncompressed positive electrode active material layer 21B before pressing on the positive electrode substrate 26 will be described with reference to FIGS.

  As shown in FIG. 5, the layer forming apparatus 100X used in the layer forming process has a rectangular flat plate shape, a 500 mesh stainless steel screen 110, a rectangular flat plate stainless steel pedestal 120, a brush 130, and a power source. The apparatus 140 includes a mask 150 having through holes (not shown) having a predetermined shape, and a supply unit 160X that supplies the mixed particle group MX1 onto the screen 110 (upward in FIG. 5). Among these, the supply unit 160 </ b> X accommodates the mixed particle group MX <b> 1 inside itself and supplies the mixed particle group MX <b> 1 on the screen 110.

Further, the power supply device 140 applies a voltage between the screen 110 and the cradle 120 at a position facing the screen 110. Specifically, the negative electrode of the power supply device 140 is connected to the screen 110 and the positive electrode to the cradle 120, respectively, and a voltage of 3 kV is applied. Thereby, an electrostatic field can be generated between the screen 110 and the cradle 120.
Further, the brush 130 is disposed on the screen 110 (upward in FIG. 5), and moves on the screen 110 (specifically, reciprocating in the left-right direction in FIG. 5) to charge the screen 110. The mixed particle group MX1 is passed through the eye of the screen 110, and the mixed particle group MX1 is blown toward the cradle 120 (downward in FIG. 5).
The acrylic mask 150 is positioned between the screen 110 and the positive electrode substrate 26 and passes through a through hole (not shown) having a predetermined shape formed in the mask 150 among the mixed particle group MX1 protruding from the screen 110. The deposited product is deposited on the positive electrode substrate 26. As a result, the mixed particle group MX1 can be deposited at a desired position on the main surface of the positive electrode substrate 26.

In this layer forming step, first, the belt-like positive electrode substrate 26 set in the unwinding part MD is pulled out and moved in the longitudinal direction DA, and the mixed particle group MX1 is deposited on the first positive electrode substrate main surface 27 of the positive electrode substrate 26. (See FIG. 6A).
The mixed particle group MX1 includes conductive auxiliary agent particles 25 in addition to the positive electrode active material particles 22 and the binder particles 23G, and is sufficiently mixed.
The mixed particle group MX1 supplied from the supply unit 160X onto the screen 110 (upward in FIG. 6A) is frictionally charged negatively between the brush 130 and the screen 110 moving in the left-right direction on the screen 110 in FIG. 6A. Let Then, the negatively charged mixed particle group MX1 is pushed out from the eyes of the screen 110 by the brush 130.

By the way, since the electrostatic field is generated by the application of voltage between the screen 110 and the cradle 120 arranged below the screen 110 in FIG. The mixed particle group MX1 that has passed and moved is accelerated toward the cradle 120 by the electrostatic field. Among the accelerated mixed particle group MX1, the particles that have passed through the through hole (not shown) of the mask 150 collide with the positive electrode substrate 26 located above the cradle 120 in FIG. 6B.
Thus, the mixed particle group MX1 is deposited on the first positive electrode main surface 27 of the positive electrode substrate 26, and the uncompressed uncompressed positive electrode active material layer 21B is intermittently formed in the longitudinal direction DA (see FIG. 6B). .

Next, in the hot press process, a press apparatus 200X including two metal press rollers 210 and 210 heated to a temperature at which PVDF is softened is used (see FIG. 5).
After the above-described layer formation step, the positive electrode substrate 26 is moved in the longitudinal direction DA, and the positive electrode substrate 26 on which the uncompressed positive electrode active material layer 21B is formed is passed between the two heated press rollers 210 and 210. The uncompressed positive electrode active material layer 21 </ b> B is compressed in the thickness direction DT while being heated together with the positive electrode substrate 26. Thereby, the binder particles 23G (see FIG. 6B) of the uncompressed positive electrode active material layer 21B are softened and deformed, and in addition to the positive electrode active material particles 22, the positive electrode active material particles 22 and the conductive auxiliary agent particles 25, etc. Are bonded to each other by heat-sealing the binder 23.
Thus, the compressed positive electrode active material layer 21 is formed on one side of the positive electrode substrate 26 (the first positive electrode substrate main surface 27 side).
In addition, the positive electrode board | substrate 26 is wound up by the winding-up part MT after a hot press process (refer FIG. 5).

  Further, the positive electrode active material layer 21 is also formed on the second positive electrode substrate main surface 28 side of the positive electrode substrate 26 using the layer forming apparatus 100X and the press apparatus 200X (see FIG. 5). Thereafter, the positive electrode substrate 26 on which the positive electrode active material layer 21 is formed is cut.

Separately from the above, also in the negative electrode substrate 36, the layer forming process and the thermal pressure are performed using the layer forming apparatus 100Y and the press apparatus 200Y (see FIG. 5) similar to the layer forming apparatus 100X and the press apparatus 200X described above. A negative electrode active material layer 31 is formed by performing a pressing process.
However, the supply unit 160Y of the layer forming apparatus 100Y includes the negative electrode active material particles 32 and the granular binder particles 33G made of PVDF forming the binder 33, and a mixed particle group MX2 obtained by sufficiently mixing them. (See FIG. 5). Further, after the layer forming process using the layer forming apparatus 100Y, the negative electrode substrate 36 having a rectangular flat plate shape is placed, and a hot press process is performed by the pressing apparatus 200Y. In these respects, only the layer forming process and the hot-pressing process described above for forming the positive electrode active material layer 21 are different, and the description thereof is omitted.
As for the negative electrode substrate 36, similarly to the positive electrode substrate 26, the negative electrode active material layer 31 is formed on the first negative electrode substrate main surface 37 and the second negative electrode substrate main surface 38. Thereafter, the negative electrode substrate 36 on which the negative electrode active material layer 31 is formed is cut.

The above-described power generating element 10 is completed by alternately laminating the rectangular plate-like positive electrode substrate 26 and the negative electrode substrate 36 with the rectangular plate-like separator 40 interposed therebetween (see FIGS. 3 and 4).
Further, after the positive electrode current collector 71 and the negative electrode current collector 72 are joined to the positive electrode plate 20 (positive electrode substrate 26) and the negative electrode plate 30 (negative electrode substrate 36) of the power generation element 10, respectively (see FIG. 3). The power generation element 10 is accommodated in the electric case main body 81, an electrolyte solution (not shown) is injected into the battery case main body 81 and absorbed by the separator 40, and then the battery case main body 81 is sealed by the sealing lid 82 by welding. Thus, the battery 1 is completed (see FIG. 1).

  In the manufacturing method of the positive electrode plate 20 of the present reference embodiment 1, the mixed particle group MX1 in which the positive electrode active material particles 22 and the binder particles 23G are mixed in advance is mixed with the first positive electrode substrate main of the positive electrode substrate 26 by electrostatic screen printing. It is deposited on the surface 27 (second positive electrode substrate main surface 28). For this reason, compared with the case where the positive electrode active material particles 22 are deposited on the binder particles 23G by the electrostatic screen printing method, the positive electrode active material particles 22 and the binder particles 23G are formed in the uncompressed positive electrode active material layer 21B. It can be uniformly dispersed. Therefore, in the positive electrode active material layer 21 formed by the hot-pressing process using the uncompressed positive electrode active material layer 21 </ b> B, the positive electrode active material particles 22 can be appropriately bound together by the binder 23. Thus, the positive electrode plate 20 with improved binding force between the positive electrode active material particles 22 can be manufactured.

  Similarly, in the method of manufacturing the negative electrode plate 30, the mixed particle group MX2 in which the negative electrode active material particles 32 and the binder particles 33G are mixed in advance is mixed with the first negative electrode substrate main surface 37 of the negative electrode substrate 36 by electrostatic screen printing. Deposited on (second negative electrode substrate main surface 38). Therefore, compared with the case where the negative electrode active material particles 32 are deposited on the binding particles 33G by the electrostatic screen printing method, the negative electrode active material particles 32 and the binding particles 33G are included in the uncompressed negative electrode active material layer 31B. It can be uniformly dispersed. Therefore, in the negative electrode active material layer 31 formed by the hot-pressing process using the uncompressed negative electrode active material layer 31 </ b> B, the negative electrode active material particles 32 can be appropriately bound together by the binder 33. Thus, the negative electrode plate 30 with improved binding force between the negative electrode active material particles 32 can be manufactured.

  Further, the binder particles 23G in the uncompressed cathode active material layer 21B are softened and deformed by a hot-pressing process, and the cathode active material particles 22 and the binder 23 are formed in any part as viewed in the thickness direction DT. The positive electrode active material layer 21 with a constant ratio can be formed. Therefore, it is possible to manufacture the positive electrode plate 20 in which the positive electrode active material particles 22 are reliably bound by the heat fusion of the binder 23.

  Similarly, the binder particles 33G in the uncompressed negative electrode active material layer 31B are softened and deformed by a hot-pressing process, and the negative electrode active material particles 32 and the binder 33 are observed at any part in the thickness direction DT. The negative electrode active material layer 31 with a constant ratio can be formed. Therefore, it is possible to manufacture the negative electrode plate 30 in which the negative electrode active material particles 32 are reliably bound to each other by the heat fusion of the binder 33.

  Moreover, since the positive electrode substrate 26 is made of aluminum in the positive electrode plate 20, good conductivity can be obtained. In addition, since the dispersion medium is not used by using the electrostatic screen printing method, the occurrence of corrosion of the positive electrode substrate 26 due to this can be prevented, and the positive electrode active material layer 21 can be appropriately formed on the positive electrode substrate 26.

(Embodiment 1)
Next, the battery 501 according to the first embodiment of the present invention will be described with reference to FIGS.
In the first embodiment, a solid electrolyte is used instead of the separator and the electrolytic solution, that is, the solid electrolyte layer 540 is interposed between the positive electrode plate and the negative electrode plate of the battery 501, and Accordingly, the solid electrolyte particles are included in the positive electrode active material layer of the positive electrode plate and in the negative electrode active material layer of the negative electrode plate.
Therefore, the description will focus on the differences from the reference embodiment, and the description of similar parts will be omitted or simplified. In addition, about the same part, the same effect is produced. In addition, the same contents are described with the same numbers.

A battery 501 according to the first embodiment is a lithium ion secondary battery having a battery case 80 and a power generation element 510 accommodated in the battery case 80 (see FIGS. 1 and 2).
The power generation element 510 includes a positive electrode substrate 26 made of aluminum foil, a positive electrode plate 520 having a positive electrode active material layer 521 formed on the positive electrode substrate 26, a negative electrode substrate 36 made of copper foil, and the negative electrode substrate 36. A plurality of negative electrode plates 530 having a negative electrode active material layer 531 formed thereon are alternately stacked in the stacking direction DL (see FIGS. 3 and 7). A solid electrolyte layer 540 is interposed between the positive electrode active material layer 521 of the positive electrode plate 520 and the negative electrode active material layer 531 of the negative electrode plate 530 adjacent to the positive electrode plate 520 (FIG. 7). reference).

Among these, the positive electrode plate 520 is specifically a positive electrode active material made of lithium cobalt oxide (LiCoO ₂ ) on the first positive electrode substrate main surface 27 and the second positive electrode substrate main surface 28 forming both surfaces of the positive electrode substrate 26. A positive electrode active material layer 521 including particles 22 and a binder 23 made of PVDF is provided (see FIG. 7). Further, the positive electrode active material layer 521 includes solid electrolyte particles 24 made of sulfide solid electrolyte (Li ₂ S—P ₂ S ₅ glass) in addition to the positive electrode active material particles 22 and the binder 23.
In the first embodiment, the weight ratio of the positive electrode active material layer 521 is set as positive electrode active material particles 22: binder 23: solid electrolyte particles 24 = 67: 5: 28.

In addition, in the positive electrode active material layer 521, the ratio between the positive electrode active material particles 22 and the binder 23 is constant (same) in the thickness direction DT (the same direction as the above-described stacking direction DL, see FIGS. 3 and 7). Thus, the positive electrode active material particles 22 are bonded to each other by the heat-bonded binding material 23.
Thus, as in the first embodiment, the positive electrode plate 520 with improved binding force between the positive electrode active material particles 22 can be obtained.

Specifically, the negative electrode plate 530 is composed of negative electrode active material particles 32 made of graphite and PVDF on the first negative electrode substrate main surface 37 and the second negative electrode substrate main surface 38 forming both surfaces of the negative electrode substrate 36. A negative electrode active material layer 531 including a binder 33 and solid electrolyte particles 34 made of a sulfide-based solid electrolyte (Li ₂ S—P ₂ S ₅ glass) is formed (see FIG. 7).
The weight ratio in the negative electrode active material layer 531 was set to negative electrode active material particles 32: binder 33: solid electrolyte particles 34 = 47.5: 5: 47.5.

In addition, in the negative electrode active material layer 531, the ratio between the negative electrode active material particles 32 and the binder 33 is made constant (same) in the thickness direction DT (laminating direction DL), and the negative electrode active material particles 32 are made of each other. They are bonded to each other by the heat-bonded binding material 33.
Thus, as in Reference Mode 1, the negative electrode plate 530 with improved binding force between the negative electrode active material particles 32 can be obtained.

Next, a method for manufacturing the battery 501 according to the first embodiment will be described with reference to FIG.
First, a layer forming process is performed using the same layer forming apparatus 100X as in Reference Embodiment 1, and an uncompressed positive electrode active material layer (not shown) before pressing is formed on the positive electrode substrate 26. However, including the positive electrode active material particles 22, the binder particles 23 </ _b > G, and the granular solid electrolyte particles 24 made of a sulfide-based solid electrolyte (Li ₂ S—P ₂ S ₅ glass) excluding the conductive auxiliary agent particles 25, This is different from the first embodiment in that the mixed particle group MX3 in which these are sufficiently mixed is supplied from the supply unit 160X of the layer forming apparatus 100X (see FIG. 5).

  Next, a hot press process is performed using a press apparatus 200X (see FIG. 5) similar to that in Reference Embodiment 1, and a compressed positive electrode active material layer is formed on one side of the positive electrode substrate 26 (first positive electrode substrate main surface 27 side). 521 is formed.

Next, a positive electrode active material formed on the positive electrode substrate 26 by performing a layer formation process and a hot-pressing process using the layer formation apparatus 100Z and the press apparatus 200Z similar to the layer formation apparatus 100X and the press apparatus 200X described above. A solid electrolyte layer 540 is further stacked and formed on the layer 521.
However, in the supply unit 160Z of the layer forming apparatus 100Z, granular solid electrolyte particles 41 made of sulfide-based solid electrolyte (Li ₂ S—P ₂ S ₅ glass) and granular particles made of PVDF forming the binder 42 are used. The mixed particle group MX4 including the binding particles 42G and sufficiently mixed thereof is accommodated (see FIG. 5). Note that only this point is different from the above-described layer forming step and hot-pressing step for forming the positive electrode active material layer 521, and thus description thereof is omitted.

Next, using the layer forming apparatus 100Y and the press apparatus 200Y, which are the same as in the reference embodiment 1, a layer forming process and a hot-pressing process are performed, and a negative electrode active material layer 531 is further stacked and formed on the solid electrolyte layer 540. .
However, Reference Embodiment 1 in that the mixed particle group MX5 including the solid electrolyte particles 34 in addition to the negative electrode active material particles 32 and the binder particles 33G and sufficiently mixed them is supplied from the supply unit 160Y of the layer forming apparatus 100Y. (See FIG. 5).

Furthermore, the positive electrode active material layer 521, the negative electrode active material layer 531, or the solid electrolyte layer 540 is formed by repeatedly using the layer forming apparatuses 100X, 100Y, and 100Z and the press apparatuses 200X, 200Y, and 200Z. Thereafter, the positive electrode substrate 26 is cut, and the above-described power generation element 510, that is, the positive electrode plate 520 having the positive electrode active material layer 521 formed on the positive electrode substrate 26 and the negative electrode active material formed on the negative electrode substrate 36. A power generation element 510 having a negative electrode plate 530 having a layer 531 and a solid electrolyte layer 540 interposed between the positive electrode active material layer 521 and the negative electrode active material layer 531 can be formed (see FIGS. 3 and 7).
Furthermore, after joining the positive electrode current collector 71 to the positive electrode plate 520 (positive electrode substrate 26) and the negative electrode current collector 72 to the negative electrode plate 530 (negative electrode substrate 36) of the power generation element 510 (see FIG. 3), The power generation element 510 is accommodated in the electric case main body 81 and the battery case main body 81 is sealed by welding with the sealing lid 82. Thus, the battery 501 is completed (see FIG. 1).

(Reference form 2)
Next, a battery 701 according to Reference Embodiment 2 of the present invention will be described with reference to FIGS.
The present reference embodiment 2 is different from the aforementioned reference embodiment 1 in that the battery 701 is a bipolar battery and uses a gel electrolyte.

The battery 701 is a bipolar lithium ion secondary battery having a battery case 80 and a power generation element 710 accommodated in the battery case 80 (see FIGS. 1 and 8).
Among them, the power generation element 710 includes a total positive electrode substrate 751 located at the uppermost part and a total negative electrode substrate 756 located at the lowermost part in FIG. 9. Between these layers, a plurality of positive electrode active material layers 21, negative electrode active material layers 31, gel electrolyte layers 740, and electrode substrates 766 made of metal foil are laminated in the lamination direction DL (FIG. 9, 10). Note that each electrode substrate 766 has a rectangular foil shape in which the dimension from the left back to the right front direction in FIG. 9 is shorter than the total positive substrate 751 (total negative substrate 756).

The positive electrode active material layer 21 and the negative electrode active material layer 31 in Reference Embodiment 2 are both the same as the positive electrode active material layer 21 and the negative electrode active material layer 31 in Reference Embodiment 1. That is, the positive electrode active material layer 21 includes positive electrode active material particles 22 made of lithium cobalt oxide (LiCoO ₂ ), a binder 23 made of PVDF, and conductive auxiliary agent particles 25 made of acetylene black. On the other hand, the negative electrode active material layer 31 includes negative electrode active material particles 32 made of graphite and a binder 33 made of PVDF.

The gel electrolyte layer 740 includes a polymer (not shown) made of polyethylene oxide and an electrolyte solution (not shown) that form a three-dimensional network structure. The gel electrolyte layer 740 is a gel electrolyte in which an electrolytic solution (not shown) is held in a gap formed by a polymer network.
As the polymer, in addition to the above, for example, polypropylene oxide, polyester resin, aramid resin, polyolefin resin, polyvinylidene fluoride, polyvinyl chloride, polyacrylonitrile, polymethyl methacrylate, copolymers thereof, these Alloys (complexes of different polymers) can be mentioned.

  The power generation element 710 will be specifically described in order from the total positive electrode substrate 751 side. The positive electrode active material layer 21 is formed on the total positive electrode main surface 752 which is one main surface of the total positive electrode substrate 751 (FIG. 10). reference). Then, a gel electrolyte layer 740 is formed below the positive electrode active material layer 21 in FIG. 10, and a negative electrode active material layer 31 is formed below the gel electrolyte layer 740 in the drawing. Further, below the negative electrode active material layer 31 in the figure, an electrode substrate 766 is disposed in contact with its second substrate main surface 768. Further, the positive electrode active material layer 21 is formed on the first substrate main surface 767 of this electrode substrate 766 (downward in FIG. 10). Also, in the lower part of the positive electrode active material layer 21 in FIG. 10, the gel electrolyte layer 740, the negative electrode active material layer 31, and the electrode substrate 766 are laminated as described above, and this is repeated. ing. In FIG. 10, the total negative electrode substrate 756 is disposed in contact with the negative electrode active material layer 31 positioned at the lowermost position.

  In the power generation element 710, one unit cell is configured between the positive electrode active material layer 21 and the negative electrode active material layer 31 with the gel electrolyte layer 740 interposed therebetween. Therefore, since the power generation element 710 has a configuration in which a plurality of unit cells are stacked in series in the stacking direction DL, the total positive electrode substrate 751 of the first electrode plate 750 and the total negative electrode substrate 756 of the second electrode plate 755 are provided. A total potential difference among the potential differences in the first electrode plate 750, the second electrode plate 755, and the third electrode plate 760 is generated between them.

Further, in the power generation element 710, the first electrode plate 750 includes a rectangular plate-like total positive electrode substrate 751 made of aluminum and the positive electrode active material layer 21 formed on the total positive electrode main surface 752 of the total positive electrode substrate 751. (See FIG. 10). Further, it is considered that the second electrode plate 755 is formed by a rectangular plate-like total negative electrode substrate 756 made of copper and the negative electrode active material layer 31 formed on the total negative electrode main surface 757 of the total negative electrode substrate 756. be able to. Further, the electrode substrate 766, the upper and lower sides, that is, the positive electrode active material layer 21 formed on the first substrate main surface 767, and the negative electrode active material layer 31 formed on the second substrate main surface 768, It can be seen that the electrode plate 760 is formed.
Then, the power generation element 710 includes the first electrode plate 750 and the third electrode plate 760, the third electrode plates 760 and 760, and the third electrode plate 760 and the second electrode plate 755. In addition, it can be seen that the gel electrolyte layer 740 is interposed.
It can be seen that the electrolyte layer 740 is interposed.

  Note that a positive electrode tab portion 771 extends on the total positive electrode substrate 751 and a negative electrode tab portion 772 extends on the total negative electrode substrate 756 in the left front direction in FIG. The leading end portion 771A of the positive electrode tab portion 771 and the leading end portion 772A of the negative electrode tab portion 772 penetrate the sealing lid 82 of the battery case 80 and project outside from the battery case 80 to form an external terminal of the battery 701. (See FIGS. 1 and 8).

In the first electrode plate 750 and the third electrode plate 760 of Reference Embodiment 2, as in Reference Embodiment 1 and Embodiment 1, the positive electrode active material layer 21 formed thereon has the positive electrode active material particles 22 and the binder 23. And the positive electrode active material particles 22 are bonded to each other by the heat-bonded binding material 23.
Further, in the second electrode plate 755 and the third electrode plate 760, the negative electrode active material layer 31 formed thereon is the ratio between the negative electrode active material particles 32 and the binder 33, as in Reference Embodiment 1 and Embodiment 1. However, it is made constant (same) in the thickness direction DT, and the negative electrode active material particles 32 are bonded to each other by the heat-bonded binding material 33.
Thus, the first electrode plate 750, the second electrode plate 755, and the third electrode plate 760 can be obtained in which the binding force between the positive electrode active material particles 22 or the negative electrode active material particles 32 is improved.

In the manufacture of the battery 701 according to the second embodiment, the layer forming apparatuses 100X and 100Y and the press apparatuses 200X and 200Y according to the first embodiment are used (see FIG. 5), and the electrode substrate 766 (or The positive electrode active material layer 21 or the negative electrode active material layer 31 is formed on the total positive electrode substrate 751 or the total negative electrode substrate 756).
Specifically, first, using the same layer forming apparatus 100X and press apparatus 200X (see FIG. 5) as in the first embodiment, the layer forming process and the hot-pressing process are performed, and the first substrate main surface of the electrode substrate 766 is obtained. A positive electrode active material layer 21 is intermittently formed on 767. Next, on the second substrate main surface 768 of the electrode substrate 766, a layer forming process and a hot-pressing process are performed using the same layer forming apparatus 100Y and press apparatus 200Y (see FIG. 5) as in the first embodiment. The negative electrode active material layer 31 is formed at a position where the positive electrode active material layer 21 is disposed with the substrate 766 interposed therebetween. After that, it is cut to have a predetermined dimension in the longitudinal direction DA and is formed on a rectangular plate-like electrode substrate 766.

  Further, the positive electrode active material layer 21 is formed on the total positive electrode main surface 752 of the total positive electrode substrate 751 by using the layer forming apparatus 100X and the press apparatus 200X (see FIG. 5). Furthermore, the negative electrode active material layer 31 is formed on the total negative electrode main surface 757 of the total negative electrode substrate 756 using the layer forming apparatus 100Y and the press apparatus 200Y (see FIG. 5).

  Separately, a gel electrolyte layer 740 is coated with an electrolytic solution containing an electrolyte polymer (monomer) on a metal foil, and a monomer is polymerized by radical polymerization by electron beam irradiation to form a film. It is peeled off from the foil and cut into a rectangular plate.

  Thereafter, the gel electrolyte layer 740 is interposed between the two electrode substrates 766 and 766 and between the electrode substrate 766 and the total positive electrode substrate 751 or the total negative electrode substrate 756, so that the stacking direction DL (thickness direction) These are laminated on DT). Thus, the above-described power generation element 710 is completed (see FIGS. 9 and 10).

  Further, after passing the positive electrode tab portion 771 of the total positive electrode substrate 751 of the power generation element 710 and the negative electrode tab portion 772 of the total negative electrode substrate 756 through the sealing lid 82, the power generation element 710 is accommodated in the electric case body 81. The battery case body 81 is sealed by welding with the sealing lid 82. Thus, the battery 701 is completed (see FIG. 1).

(Embodiment 2)
A vehicle 800 according to the second embodiment includes a plurality of any of the batteries 1, 501 and 701 described above. Specifically, as shown in FIG. 11, vehicle 800 is a hybrid vehicle that is driven by using engine 840, front motor 820, and rear motor 830 in combination. The vehicle 800 includes a vehicle body 890, an engine 840, a front motor 820, a rear motor 830, a cable 850, an inverter 860, and a battery pack 810 having a plurality of batteries 1,501, 701 therein. doing.

  Since the vehicle 800 according to the second embodiment has any one of the above-described batteries 1, 501, 701 mounted thereon, while suppressing problems caused by the binding force in the active material layers 21, 31, 521, 531. Thus, the vehicle 800 can be used stably.

(Embodiment 3)
Further, the hammer drill 900 according to the third embodiment is mounted with a battery pack 910 including any of the batteries 1, 501, 701 described above, and has a battery pack 910 and a main body 920 as shown in FIG. It is a battery-equipped device. The battery pack 910 is detachably accommodated in the pack accommodating portion 921 of the main body 920.

  Since the hammer drill 900 according to the third embodiment is equipped with any one of the batteries 1, 501 and 701 described above, it suppresses problems caused by the binding force in the active material layers 21, 31, 521 and 531. However, the hammer drill 900 can be used stably.

In the above, the present invention has been described with reference to the first to third embodiments. However, the present invention is not limited to the above-described embodiments, and can be appropriately modified and applied without departing from the gist thereof. Needless to say.
For example, in the reference form 1, aluminum foil or copper foil is used as the electrode substrates 26 and 36. However, for example, the material may be nickel, stainless steel, or the like. In addition to the metal foil, for example, a metal plate or a conductive resin film may be used.

  In Reference Embodiment 1 and Embodiment 1, the separator or the solid electrolyte layer is a stacked lithium ion secondary battery interposed between the positive electrode plate and the negative electrode plate, but instead of the separator and the solid electrolyte layer, It is good also as a form using the gel electrolyte layer shown in the reference form 2. Further, in Reference Embodiment 2, a bipolar lithium ion secondary battery using a gel electrolyte layer was used, but the separator or solid electrolyte layer shown in Reference Embodiment 1 and Embodiment 1 was used instead of the gel electrolyte layer. A bipolar battery may be used.

In Embodiment 1, the positive electrode active material layer 521, the solid electrolyte layer 540, and the negative electrode active material layer 531 are stacked one by one in this order to form a power generation element.
However, the procedure for forming and laminating the positive electrode active material layer, the solid electrolyte layer, and the negative electrode active material layer is not particularly limited. For example, the positive electrode active material layer is formed on the positive electrode substrate, and the negative electrode active material layer is formed on the negative electrode substrate. Each is formed separately, and an uncompressed solid electrolyte is formed on the positive electrode active material layer or the negative electrode active material layer using a layer forming apparatus. Then, the negative electrode active material layer and the positive electrode active material layer are stacked through this uncompressed solid electrolyte layer, and the three are combined and compressed using a press device to form a solid electrolyte layer. You may laminate.
Further, for example, using a layer forming apparatus, an uncompressed solid electrolyte layer is formed on the positive electrode active material layer or the negative electrode active material layer, and then pressed, and the solid electrolyte layer on the positive electrode active material layer, or A solid electrolyte layer is formed on the negative electrode active material layer. Then, the uncompressed negative electrode active material layer is deposited on the solid electrolyte layer formed on the positive electrode active material layer, or the uncompressed positive electrode active material layer is deposited on the solid electrolyte layer formed on the positive electrode active material layer, and the whole is pressed. You may do it.

1,501,701 Battery 10,510,710 Power generation element 20,520 Positive electrode plate (electrode plate, metal foil)
21,521 Positive electrode active material layer (active material layer)
21B Uncompressed positive electrode active material layer (uncompressed active material layer)
22 Positive electrode active material particles (active material particles)
23, 33 Binder (binder resin)
23G, 33G binder particles (resin particles)
26 Positive substrate (electrode substrate)
27 First positive substrate main surface (substrate main surface)
28 Second positive electrode substrate main surface (substrate main surface)
30,530 Negative electrode plate (electrode plate)
31, 531 Negative electrode active material layer (active material layer)
31B Uncompressed negative electrode active material layer (uncompressed active material layer)
32 Negative electrode active material particles (active material particles)
36 Negative substrate (electrode substrate)
37 First negative electrode substrate main surface (substrate main surface)
38 Main surface of second negative electrode substrate (main surface of substrate)
750 First electrode plate (electrode plate)
751 Total positive substrate (electrode substrate)
752 Total positive electrode main surface (substrate main surface)
755 Second electrode plate (electrode plate)
756 Total negative electrode substrate (electrode substrate)
757 Total negative electrode main surface (substrate main surface)
760 Third electrode plate (electrode plate)
766 Electrode substrate 767 First substrate main surface (substrate main surface)
768 Second substrate main surface (substrate main surface)
800 vehicle 810 assembled battery (battery)
900 Hammer drill (battery mounted equipment)
910 Battery pack (battery)
DT Thickness direction MX1, MX2, MX3, MX5 mixed particle group

Claims (14)

A conductive electrode substrate;
A method for producing an electrode plate, comprising: active material particles formed on a substrate main surface of the electrode substrate, an active material layer comprising active material particles, a binder resin for active material layers, and solid electrolyte particles for active material layers comprising a solid electrolyte. Because
A mixed particle group in which the active material particles, the active material layer resin particles including the active material layer binder resin, and the solid electrolyte particles for the active material layer are mixed in advance is charged by passing through the eyes of a screen. skip by, by an electrostatic screen printing Ru is deposited on the substrate main surface of the electrode substrate, a layer formation step of forming a uncompressed active material layer in a predetermined shape,
A hot-press press that compresses while heating the uncompressed active material layer formed in the layer forming step, and binds the active material particles and the solid electrolyte particles for the active material layer with the binder resin for the active material layer With a process,
The electrode plate has a solid electrolyte layer made of solid electrolyte particles for a solid electrolyte layer and a binder resin for a solid electrolyte layer on the active material layer,
After the hot press process,
The mixed particle group in which the solid electrolyte layer resin particles made of the solid electrolyte layer binder resin and the solid electrolyte layer solid electrolyte particles are mixed in advance is charged by passing through the eyes of a screen, and is blown by an electric field, so that the active An electrode plate manufacturing method comprising: an uncompressed solid electrolyte layer forming step of forming an uncompressed solid electrolyte layer in a predetermined shape by an electrostatic screen printing method deposited on a material layer . It is a manufacturing method of the electrode plate according to claim 1 ,
The solid electrolyte particles for the solid electrolyte layer are the same material as the solid electrolyte particles for the active material layer,
The method for producing an electrode plate, wherein the solid electrolyte layer resin particles and the solid electrolyte layer binder resin are the same material as the active material layer resin particles and the active material layer binder resin. It is a manufacturing method of the electrode plate according to claim 1 or 2 ,
Compressing while heating the uncompressed solid electrolyte layer formed in the uncompressed solid electrolyte layer forming step,
The manufacturing method of an electrode plate provided with the solid electrolyte layer hot-pressing process of binding the solid electrolyte particles for solid electrolyte layers with the binder resin for solid electrolyte layers, and forming the said solid electrolyte layer. It is a manufacturing method of the electrode plate according to claim 3 ,
The electrode plate has a reverse polarity active material layer composed of a reverse polarity active material particle having a polarity opposite to that of the active material particle, a binder resin for a reverse polarity active material layer, and a solid electrolyte particle for a reverse polarity active material layer. Having on the layer,
After the solid electrolyte layer hot press process,
A mixed particle group in which the reverse polarity active material particles, the reverse polarity active material layer resin particles made of the reverse polarity active material layer binder resin, and the reverse polarity active material layer solid electrolyte particles are mixed in advance is added to the screen. skipping the field is charged by passing through an eye, the solid electrolyte layer electrostatic screen printing method Ru deposited on, uncompressed opposite polarity active material layer to form the uncompressed opposite polarity active material layer in a predetermined shape A manufacturing method of an electrode plate provided with a formation process. It is a manufacturing method of the electrode plate according to claim 4 ,
The solid electrolyte particles for the reverse polarity active material layer are the same material as the solid electrolyte particles for the active material layer and the solid electrolyte particles for the solid electrolyte layer,
The reverse polarity active material layer resin particles and the reverse polarity active material layer binder resin are the active material layer resin particles and the solid electrolyte layer resin particles, and the active material layer binder resin and the solid electrolyte. The manufacturing method of the electrode plate which is the same material as binder resin for layers. It is a manufacturing method of the electrode plate according to claim 4 or 5 ,
Compressing while heating the uncompressed reverse polarity active material layer formed in the uncompressed reverse polarity active material layer forming step,
Reverse polarity active material layer hot pressure for forming the reverse polarity active material layer by binding the reverse polarity active material particles and the solid electrolyte particles for the reverse polarity active material layer with the binder resin for the reverse polarity active material layer A method for producing an electrode plate comprising a pressing step. It is a manufacturing method of the electrode plate according to any one of claims 1 to 6 ,
The electrode substrate is a method of manufacturing an electrode plate made of metal. A conductive electrode substrate;
An active material layer comprising active material particles, a binder resin for active material layer, and a solid electrolyte particle for active material layer made of a solid electrolyte, formed on the main surface of the electrode substrate, and an electrode plate comprising: ,
The active material layer is
Using electrostatic screen printing method, it is formed into a predetermined shape,
The ratio of the active material particles, the binder material for the active material layer and the solid electrolyte particles for the active material layer is made constant in the thickness direction,
The active material particles and the active material layer for a solid electrolyte particles to each other by thermal fusion the above active material layer binder resin, Ri Na and bound to each other,
On the active material layer, comprising a solid electrolyte layer comprising a binder resin for a solid electrolyte layer and solid electrolyte particles for a solid electrolyte layer,
The solid electrolyte layer is
Using electrostatic screen printing method, it is formed into a predetermined shape,
The ratio of the binder resin for the solid electrolyte layer and the solid electrolyte particles for the solid electrolyte layer is made constant in the thickness direction,
The electrode plate, wherein the solid electrolyte particles for the solid electrolyte layer are bonded to each other by the heat-fused binder resin for the solid electrolyte layer . The electrode plate according to claim 8 ,
The solid electrolyte particles for the solid electrolyte layer are the same material as the solid electrolyte particles for the active material layer,
The binder resin for a solid electrolyte layer is an electrode plate made of the same material as the binder resin for an active material layer. The electrode plate according to claim 8 or 9 , wherein
On the solid electrolyte layer, there is a reverse polarity active material layer having a reverse polarity active material particle having a polarity opposite to that of the active material particle, a binder resin for the reverse polarity active material layer, and a solid electrolyte particle for the reverse polarity active material layer. And
The reverse polarity active material layer is
Using electrostatic screen printing method, it is formed into a predetermined shape,
The ratio of the reverse polarity active material particles, the binder resin for the reverse polarity active material layer and the solid electrolyte particles for the reverse polarity active material layer is made constant in the thickness direction,
An electrode plate in which the reverse polarity active material particles and the solid electrolyte particles for the reverse polarity active material layer are bonded to each other by the heat-fused binder resin for the reverse polarity active material layer. The electrode plate according to claim 10 ,
The solid electrolyte particles for the reverse polarity active material layer are the same material as the solid electrolyte particles for the active material layer and the solid electrolyte particles for the solid electrolyte layer,
The reverse polarity active material layer binder resin is an electrode plate made of the same material as the active material layer binder resin and the solid electrolyte layer binder resin. The battery which uses the electrode plate of any one of Claims 8-11 . A vehicle equipped with the battery according to claim 12 . The battery mounting apparatus which mounts the battery of Claim 12 .

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