CN1913195A

CN1913195A - Container, battery using the same or electric double layer capacitor and electronic device

Info

Publication number: CN1913195A
Application number: CNA2006101087099A
Authority: CN
Inventors: 植田义明; 宫石学; 横井清孝; 田中信幸
Original assignee: Kyocera Corp
Current assignee: Kyoto Ceramic Co Ltd; Kyocera Corp
Priority date: 2005-07-28
Filing date: 2006-07-28
Publication date: 2007-02-14

Abstract

The container A is provided with a base body 1 formed by sidewall (1d)and bottom (1e), also having a recess 1a, a conductive layer 1b arranged on the bottom surface facing to the recess 1a, a first electrode 2d electrically connected to the conductive layer 1b and lead out to the top surface of the base body 1, and a lid 3 whose upper surface side acts as a second electrode 3a to be electrically connected to a conductive part 3b on the lower surface side while being so joined to the top surface of the base body 1 as to close the recess 1a. Since the first electrode 2d and the second electrode 3a are arranged side by side on virtually the same flat surface, the battery B or the electric double layer capacitor easy in flat surface packaging and superior in productivity of a circuit board is provided.

Description

Container, the battery that uses this container or double charge layer capacitor and electronic installation

Technical field

The present invention relates to employed container, the battery that uses this container or double charge layer capacitor and electronic installations such as TunePower or double charge layer capacitor, more specifically, the double charge layer capacitor that relates to the stand-by power supply etc. of battery that is used for electronic equipments such as mobile phone or the stand-by power supply that is used for semiconductor memory, electronic equipment, with these employed containers, and the electronic installation that these equipment are installed.

Background technology

In the past, proposed a kind of thin battery F or double charge layer capacitor F as shown in Figure 8, it contains in the matrix of insulating properties: the electric power storage key element that the battery that is made of positive electrode B-1, negative electrode B-2, spacer (separator) B-3 and electrolyte B-4 is used; Or the electric power storage key element of using by the double charge layer capacitor that a component polar electric pole B-1, B-2, spacer B-3 and electrolyte B-4 constitute.

This existing battery F or double charge layer capacitor F constitute enclosed type construction, this structure is in the container by ceramic matrix 11 and lid 14 basic comprisings, the spacer B-3 that will be flooded by electrolyte B-4, to be sandwiched in the state between the positive electrode B-1 or the first polarity electrode B-1 and negative electrode B-2 or the second polarity electrode B-2, be configured between metal conducting layer 12b and the lid 14 and constitute, described ceramic matrix 11 is by at the aluminium oxide (Al of metal conducting layer 12b in the face of forming on the bottom surface of recess ₂O ₃) formation such as based sintered material, described lid 14 is made of iron (Fe)-nickel (Ni)-metals such as cobalt (Co) alloy.Following first and second electrode C, the D that discharge and recharge by being formed at ceramic matrix 11 in metal conducting layer 12b and the lid 14 carry out (for example, opening 2004-227959 communique (4-6 page or leaf, Fig. 1)) with reference to the spy.

But, above-mentioned battery F or double charge layer capacitor F in the past, need in ceramic matrix 11, form by metal conducting layer is drawn from positive electrode B-1 or the first polarity electrode B-1 and get back to the second electrode D, and draw the two conduction roads of getting back to the first electrode C from the negative electrode B-2 or the second polarity electrode B-2, thus, exist the problem points that ceramic matrix 11 and production process thereof complicate.

Summary of the invention

The present invention puts in view of the above problems and realizes, its purpose is, a kind of container of productivity ratio excellence is provided and can carries out heavy-duty battery, double charge layer capacitor and the electronic installation of Plane Installation to the circuit substrate that has used this container.

Container of the present invention possesses: matrix, and it is formed by sidewall and bottom, and has the recess of accommodating the electric power storage key element in inside;

Conductive layer, it is disposed at the bottom surface in the face of described recess of described bottom;

First electrode, it is electrically connected with described conductive layer, and has the leading-out portion above the sidewall that is exported to described matrix; With

Lid, its upper face side become second electrode and are electrically connected with the conductive part of following side, and are engaged in the mode of stopping up described recess above the sidewall of described matrix.

According to the present invention,,, can simplify and make the flow chart that matrix is made so first electrode that forms as one-sided conduction road on matrix gets final product, and is compared with the past owing to disposing second electrode above the lid and being electrically connected with the conductive part of following side.And, because drawing from the conductive part of lid, wiring gets back to the surface and the back side that second electrode also only connects lid, therefore can realize simply.As a result, can make container become the structure that is fit to batch process.

And then in the present invention, the surface of the described leading-out portion of preferred described first electrode forms with the surface of described second electrode is approximate becomes same plane.

And, in the present invention, the described leading-out portion of preferred described first electrode, on the sidewall of described matrix, be configured in protuberance above; This protuberance also is located at the opening portion of described recess.

And in the present invention, preferred described first electrode arrives mode in the face of the bottom surface of described recess with an end, and the perforation conductor of the inside by being disposed at described matrix is connected with described conductive layer.

And then in the present invention, the connecting portion of preferred described first electrode and described perforation conductor is configured in the described matrix inside between the bottom surface of facing described recess and described matrix following.

And battery of the present invention possesses:

The container of the invention described above; With

The electric power storage key element, it is contained in described recess, constitutes by positive electrode, negative electrode, spacer and electrolyte between these electrodes,

Described lid is engaged in above the sidewall of described matrix in the mode of the opening that stops up described recess,

Any one party of described positive electrode and negative electrode is electrically connected with described conductive layer, and any the opposing party of described positive electrode and negative electrode is electrically connected with the conductive part of the following side of described lid.

And battery of the present invention possesses:

Matrix, it is formed by sidewall and bottom, and has recess;

First electrode, it is electrically connected with described conductive layer, and is exported to above the sidewall of described matrix;

The electric power storage key element, it is made of the positive electrode that is contained in described recess, negative electrode, spacer and electrolyte between these electrodes; With

Lid, its upper face side becomes second electrode, and is engaged in the mode of stopping up described recess above the sidewall of described matrix,

And double charge layer capacitor of the present invention possesses:

The container of the invention described above; With

The electric power storage key element, it is contained in described recess, constitutes by the first polarity electrode, the second polarity electrode, spacer and electrolyte between these polarity electrodes,

Any one party of the described first and second polarity electrodes is electrically connected with described conductive layer, and any the opposing party of the described first and second polarity electrodes is electrically connected with the conductive part of the following side of described lid.

And then double charge layer capacitor of the present invention possesses:

Matrix, it is formed by sidewall and bottom, and has recess;

The electric power storage key element, it is made of the first polarity electrode that is contained in described recess, the second polarity electrode, spacer and electrolyte between these polarity electrodes; With

And electronic installation of the present invention comprises:

Circuit board, it has the power circuit wiring; With

Be installed on the battery of the invention described above on this circuit board,

Make first electrode of described container and second electrode contraposition above the described lid in described circuit board, be connected with described power circuit wiring by conductive bonding material.

And electronic installation of the present invention comprises:

Circuit board, it has the power circuit wiring; With

Be installed on the double charge layer capacitor of the invention described above on this circuit board,

Description of drawings

Purpose of the present invention, characteristic and advantage can be clear and definite by following detailed description and accompanying drawing.

Figure 1A is the profile of the container of expression the present invention the 1st execution mode, and Figure 1B is the vertical view of the container of Figure 1A, and Fig. 1 C is the assembling stereogram of container of the present invention;

Fig. 2 A is the profile of the container of expression the present invention the 2nd execution mode, and Fig. 2 B is the vertical view of the container of Fig. 2 A, and Fig. 2 C is the assembling stereogram of container of the present invention;

Fig. 3 A is the profile of the container of expression the present invention the 3rd execution mode, and Fig. 3 B is the vertical view of the container of Fig. 3 A;

Fig. 4 is the stereogram of the container of expression the present invention the 4th execution mode;

Fig. 5 is the profile of the container of expression the present invention the 5th execution mode;

Fig. 6 is other routine profile of execution mode of the container of expression the present invention the 6th execution mode;

Fig. 7 is installed to the state of circuit substrate and the profile represented with the battery of the container that will use embodiment of the present invention or double charge layer capacitor;

Fig. 8 is the profile of the example of existing battery of expression or double charge layer capacitor.

Embodiment

Below, explain preferred implementation of the present invention with reference to the accompanying drawings.

Explain container of the present invention below and use battery or the double charge layer capacitor and the electronic installation of this container.Figure 1A is the profile of the container of expression the present invention the 1st execution mode, and Figure 1B is the vertical view of the container of Figure 1A, and Fig. 1 C is the assembling stereogram of container.And Fig. 2 A is the profile of the container of expression the present invention the 2nd execution mode, and Fig. 2 B is the vertical view of the container of Fig. 2 A, and Fig. 2 C is the assembling stereogram of container.Fig. 3 A is the profile of the container of expression the present invention the 3rd execution mode, and Fig. 3 B is the vertical view of the container of Fig. 3 A.And Fig. 4 is the stereogram of the container of expression the present invention the 4th execution mode.Fig. 5 is the profile of the container of expression the present invention the 5th execution mode.Fig. 6 is the profile of the container of expression the present invention the 6th execution mode.Fig. 7 is installed to the state behind the circuit substrate and the profile represented with the battery of the container that will use embodiment of the present invention or double charge layer capacitor.In addition, in Figure 1B, Fig. 1 C, Fig. 2 B, Fig. 2 C and Fig. 3 B, partly added hachure in order to understand conductivity such as ground expression metal conducting layer easily.Therefore, these hachures partly are not the expression section.

In the execution mode of Figure 1A～Fig. 1 C, Fig. 2 A～Fig. 2 C, Fig. 3 A and Fig. 3 B and Fig. 4～shown in Figure 7, the 1st, the matrix that constitutes by insulator; 1a is the recess of accommodating the electric power storage key element that is formed on matrix 1; 1b is the conductive layer that forms in the mode that is positioned in the face of the bottom surface of recess 1a (below be called first conductive layer); 1c is second conductive layer that is formed at the open circumferential portion of recess 1a; 2d is that an end is electrically connected with the first conductive layer 1b, and the other end exports to first electrode above the sidewall of matrix 1; 2b is the bonding conductor of the first electrode 2d; The 2nd, and be located at the recess 1a above matrix 1 sidewall opening portion, for example be arranged at protuberance than peripheral part above outer matrix 1 sidewall of the opening of recess 1a; 2a is the leading-out portion that exports to first electrode above matrix 1 sidewall; The 3rd, lid; 3b is the conductive part of the following side of lid 3; 3a is arranged at the upper face side of lid 3 and second electrode that is electrically connected with the conductive part 3b of following side; The 4th, insulating paste (paste) layer; The 5th, the protection metal level; The 100th, external circuit substrate; The 101st, first power circuit wiring on the external circuit substrate 100; The 102nd, the second source wiring on the external circuit substrate 100; B-1 is the positive electrode or the first polarity electrode; B-2 is the negative electrode or the second polarity electrode; B-3 is a spacer; B-4 is an electrolyte; A is a container of the present invention; B is battery of the present invention or double charge layer capacitor.In addition, in each figure, give identical symbol to the position of representing same position.

At first, container A of the present invention is elaborated.

Container A of the present invention for example shown in Figure 1A～Fig. 1 C, comprises matrix 1, the first conductive layer 1b, the second conductive layer 1c, the first electrode 2d and lid 3.Matrix 1 is formed by sidewall 1d and bottom 1e, and has the recess 1a that contains electric power storage key elements such as battery key element or double charge layer capacitor key element in inside.That is, matrix 1 surrounds the bottom surface in the face of recess 1a of bottom 1e, has the sidewall 1d in the face of recess 1a.That is, matrix 1 comprises: have the bottom 1e and the upright frame shape sidewall 1d that is located at the outer peripheral edges portion of bottom 1e that comprise in the face of the surface of the bottom surface of recess 1a.That is, the surface of the bottom 1e that is surrounded by sidewall 1d is the bottom surface in the face of recess 1a.The first conductive layer 1b is configured in the bottom surface in the face of recess 1a of bottom 1e.The second conductive layer 1c is formed on the parameatal sidewall 1d of recess 1a.First electrode, 2 one ends are electrically connected with the first conductive layer 1b, and the other end is made of the leading-out portion 2a above the sidewall 1d that exports to matrix 1.Lid 3, its upper face side are electrically connected with the conductive part 3b of following side as the second electrode 3a, and be bonded on by the second conductive layer 1c in the mode of stopping up recess 1a matrix 1 sidewall 1d above.And the leading-out portion 2a of the first electrode 2d and the second electrode 3a are arranged in the top of container A and dispose.

Container A of the present invention, shown in Fig. 2 A, Fig. 2 B, Fig. 2 C, preferably on the sidewall 1d than the opening portion matrix 1 more in the outer part of recess 1a, the leading-out portion 2a of protuberance 2, the first electrode 2d that is provided with and is located at the opening portion of recess 1a is formed on the top for good of protuberance 2.And the leading-out portion 2a of the first electrode 2d and the second electrode 3a are configured to the approximate same plane that becomes.

This matrix 1 is by Al ₂O ₃Based sintered material or mullite (mullite) (3Al ₂O ₃2SiO ₂) potteries such as based sintered material, aluminium nitride (AlN) based sintered material, glass ceramics, insulators such as resin such as liquid crystal polymer, modified polyamide, nylon resin, PETG, polypropylene, polyphenylene sulfide constitute.For example, when matrix 1 by Al ₂O ₃When based sintered material constitutes, make as described below.That is, at aluminium oxide (Al ₂O ₃), silica (SiO ₂), add in the magnesium oxide (MgO), calcium oxide material powders such as (CaO) and mix suitable organic bond, solvent etc., form the insulating paste of pulpous state.This insulating paste is formed ceramic printed-circuit board (below, also claim tellite) by scraping blade (doctor blade) method or calender roll (calenderroll) method, and cut into needed size.Then, in a plurality of tellites of therefrom selecting, carry out suitable punching processing in order to form recess 1a and protuberance 2.Below, in the present embodiment, will describe as an example by the matrix 1 that pottery constitutes.The situation that is made of pottery other insulator also constitutes enforcement and gets final product with identical.

In addition, shapes such as matrix 1 and recess 1a are not to be defined in the cuboid shown in Figure 1A and Figure 1B, can be polygon prism shape or shape such as cylindric yet.And the profile of matrix 1 is not to be defined in cuboid yet, can be polygon prism shape or shape such as cylindric yet.

When matrix 1 was made of pottery, the electrolyte B-4 that is difficult for involved organic solvent or acid etc. corroded, and therefore, exists hardly from the impurity of matrix 1 stripping to be blended into the electrolyte B-4, makes the situation of electrolyte B-4 deterioration.Thus, owing to used ceramic container A can keep battery performance well so preferred the use.And when constituting matrix 1 by the AlN based sintered material, because the thermal conductivity of matrix 1 increases, the thermal transpiration in the time of can be effectively with action is to outside, and therefore, electrolyte B-4 hardly thermal denaturation can take place, thereby can be with it as the high container A of reliability.When constituting container A, can obtain the high container of reliability too by the insulators such as resin of relative electrolyte B-4 corrosion resistance excellent.

And, because accommodate electrolyte B-4 by the matrix 1 that constitutes by the pottery of air-tightness excellence and excellent heat resistance etc., so, even in temperature cycling test, matrix 1 and matrix 1 can not take place yet locate to produce the gap situation that makes electrolyte B-4 leakage with the junction surface of lid 3.And, owing to can keep air-tightness well by matrix 1, so, can suppress to make the moisture of degradation of cell performance or oxygen etc. to be immersed in the electrolyte B-4 effectively from the outside.

Then, at the regulation position of these tellites, the printing coating is the metal cream of main component with tungsten (W), molybdenum (Mo), manganese refractory metal powder such as (Mn).That is, at the regulation position of these tellites, the bonding conductor 2b of the leading-out portion 2a of printing the coating first conductive layer 1b, the second conductive layer 1c, the electrical connection first conductive layer 1b and the first electrode 2d etc. becomes the metal cream of the first electrode 2d.The second conductive layer 1c forms when engaging lid 3 with matrix 1 by the brazing alloy material.Therefore, the leading-out portion 2a of the second conductive layer 1c and the first electrode 2d vacates distance in mode that can not electrical short and disposes.When engaging lid 3 with matrix 1, also can omit the second conductive layer 1c by resin adhesive etc.In addition, the second conductive layer 1c is used for the purpose of streaming current and is provided with, owing to when metal conducting layer forms, have conductivity, so be called the second conductive layer 1c.

Afterwards, become a plurality of tellites of matrix 1, by at them by the stage before calcining, connect airtight joint with the mutual pressure welding of pressure of for example temperature about 85 ℃, 4～5MPa.At this moment, preferably as shown in Figure 6,, adhere to Al by outer rim along the bottom surface of facing recess 1a ₂O ₃The powder of potteries such as based sintered material is the insulating paste layer 4 of main component, can make the sidewall 1d of matrix 1 and the surface of bottom 1e form airtight engagement state reliably, thus, can remain recess 1a airtight reliably.And,, can prevent effectively that also electrolyte B-4 from escaping to the outside even enclose electrolyte B-4 at recess 1a inner face.

At last, calcine with about 1600 ℃ temperature under reducing atmosphere by the folded body of the green sheet layers that will obtain like this, make matrix 1, this matrix 1 becomes the major part of container A of the present invention.

In addition, protuberance 2 can be shown in Fig. 2 A, Fig. 2 B and 2C like that, the only part of top peripheral part of sidewall 1d that is in the recess 1a opening portion of regulation matrix 1 is projected into the form of upside, also can be shown in Fig. 3 A and Fig. 3 B like that, be in the form that peripheral part above sidewall 1d whole of opening portion of regulation recess 1a is projected into upside.Above the protuberance 2, as long as the leading-out portion 2a that has the first top electrode 2d that is formed on protuberance 2 at least and circuit substrate can be mechanical or the area that is electrically connected.

Shown in Fig. 3 A and Fig. 3 B, preferred protuberance 2 is in the form that peripheral part above sidewall 1d whole of opening portion of regulation recess 1a is projected into upside.By this formation, can surround lid 3 fully by protuberance 2, thus, when the battery B that will use container A of the present invention or double charge layer capacitor B are installed to circuit substrate 100, the side that can prevent lid 3 is exposed to the outside, thereby can prevent from lid 3 reliably and be installed between (not shown) such as electronic units of circuit substrate 100 electrical short takes place.And, when the first electrode 2d is negative side, be made as earthing potential by current potential with negative side, can prevent electrical short reliably.And, because forming, protuberance 2 and the leading-out portion 2a that is formed on the first top electrode 2d of protuberance 2 surround lid 3, so, on circuit substrate 100, carry out scolding tin when engaging, by applying the surface tension of scolding tin equably, the installation site of container A can not be offset.

And, when the battery B that will use container A of the present invention or double charge layer capacitor B are installed to circuit substrate 100, connect up 101,102 contact area of the leading-out portion 2a that can increase the first electrode 2d above the protuberance 2 and the power circuit of circuit substrate 100, thereby, battery B or double charge layer capacitor B are stably loaded be fixed on the circuit substrate 100.

And, the first electrode 2d becomes the duplexer of tellite of matrix 1 in formation after, by forming by the metal cream of stencil printing from duplexer side printing coating above protuberance 2 the becoming first electrode 2d of tellite.Perhaps, shown in Fig. 3 A and Fig. 3 B, the first electrode 2d of the lateral parts of the sidewall 1d of matrix 1, its part can be used as crenellated (castellation) conductor that is formed on matrix 1 side and realizes, under this situation, in tellite, become crenelated through hole, then, inner face attraction printing at through hole is the metal cream of main component with refractory metal powder such as W, Mo, Mn, then, form by the not portion that cuts off tellite in the mode of slit shearing through hole.

In addition, the part of the sidewall 1d that is formed on matrix 1 of the first electrode 2d also can be divided into many formation.For example, replace shown in Fig. 3 B, like that crenellated conductor 2d being formed on the side central portion of the sidewall 1d of matrix 1, also can be divided into two formation in the bight, both sides of this side as shown in Figure 4.By being divided into many formation like this, can improve the reliability that is electrically connected of the first conductive layer 1b and leading-out portion 2a.

Perhaps, as Figure 1A～Fig. 1 C and shown in Figure 4, the bonding conductor 2b of the first electrode 2d is in the mode of end arrival in the face of the bottom surface of recess 1a, form the perforation conductor that is configured in matrix 1 inside, also can connect the first conductive layer 1b at this end that connects conductor (bonding conductor 2b).Under this situation, connect conductor dbus and cross and in tellite, become the through hole that connects conductor, then, attract to print to calcine after being the metal cream of main component at the inner face of through hole and form with refractory metal powder such as W, Mo, Mn.In addition, connecting conductor is not to be defined in this metallised conductors, for example, can form by fill the uncured resin (conductive paste) that has mixed the conductivity coccoid in through hole yet.Certainly, bonding conductor 2b (perforation conductor) also can be made of many bonding conductor 2b under this situation.

Connect conductor also can be formed into from bottom surface in the face of recess 1a matrix 1 below, but under this situation and since conductive part be exposed to matrix 1 below, so and then preferred bonding conductor 2b combination connects conductor and inner conductor.The first electrode 2d constitutes, and exports to above the sidewall 1d of matrix 1 by connecting conductor and inner conductor, and described inner conductor is configured in the face of matrix 1 inside between the bottom surface of recess 1a and matrix 1 following.That is, below the first conductive layer 1b, by connect conductor export to matrix 1 in the face of matrix 1 inside between the bottom surface of recess 1a and matrix 1 following, promptly bottom 1e inside, export to the side of matrix 1 therefrom by inner conductor.Because by deriving the bonding conductor 2b of the first electrode 2d like this, bonding conductor 2b can be via between the sidewall 1d of matrix 1 and the bottom 1e (in the face of bottom surface and the side of recess 1a), so, because of this part is formed with conductive layer, so ceramic duplexer is difficult for peeling off between sidewall 1d and bottom 1c, can simplify insulating paste layer 4 as shown in Figure 6.And, when on connect conductor, covering, be not exposed among the electrolyte B-4 owing to connect conductor by the first conductive layer 1b, so, difficultly corroded by electrolyte B-4.

Preferably at the exposing surface of the leading-out portion 2a that is formed at the first conductive layer 1b of matrix 1, the second conductive layer 1c, the first electrode 2d and the first electrode 2d, cover excellent corrosion resistance and with the metal of the wetability excellence of scolding tin, particularly, can be that thickness is the Ni layer of 1～12 μ m.Constitute according to this, can prevent the oxide etch of each conductor of constituting by metal conducting layer, and, can prevent effectively that metal ingredient is from each conductor stripping.

If the thickness of Ni layer less than 1 μ m, then is difficult to prevent the oxide etch of each conductor of being made of metal conducting layer, or is difficult to suppress effectively metal ingredient from each conductor stripping, cause battery performance or the easy deterioration of double charge layer capacitor performance.In addition,, will spend the plenty of time when then forming coating, and cause mass productivity to reduce easily, and resistance increase easily if the thickness of Ni layer surpasses 12 μ m.

And then preferred also can be on the Ni layer to cover by thickness successively by plating method etc. be the coat of metal that gold (Au) layer of 0.3～5 μ m constitutes.Constitute according to this, can improve the wetability with scolding tin, and can prevent oxide etch.

If the thickness of Au layer less than 0.3 μ m, then is difficult to form the Au layer of uniform thickness, be easy to generate the extremely thin part of Au layer or do not form the part of Au layer, cause preventing effect and reducing easily of oxide etch with the wetability of scolding tin.In addition,, will spend the plenty of time when then forming coating, and cause mass productivity to reduce easily if the thickness of Au layer surpasses 5 μ m.

In addition, represented that the first conductive layer 1b forms the example of metal conducting layer, but be not to be defined in this, so long as the electric conductor that relative electrolyte B-4 has corrosion resistance gets final product.For example, the direct vacuum evaporation of metal that aluminium relative electrolyte B-4 such as (Al) can be had corrosion resistance is in the face of the bottom surface of recess 1a, and the conductive paste layer that has mixed electroconductive particle in maybe can the resin with corrosion resistance is coated in the bottom surface in the face of recess 1a.Thus, the first conductive layer 1b plays the effect of side's collector body.

Particularly cover the Au coating on the surface of the first conductive layer 1b that is formed at container A inside and the second conductive layer 1c, owing to have the difficult character that is corroded by electrolyte B-4, so, play the voltage that suppresses effectively by discharging and recharging generation, make as the strippings easily such as W of the metal main component of the first conductive layer 1b and the second conductive layer 1c effect in the electrolyte B-4.And, play the effect that improves with the wetability of scolding tin owing to cover the Ni of the first electrode 2a and Au coating, so, will become more firm with the bond strength of the power circuit wiring on circuit substrate (not shown) surface.

And, lid 3 to be stopping up the mode of recess 1a, engages with the second conductive layer 1c of the matrix 1 of making like this, recess 1a can be remained sealing, the for example following at least central portion of this lid 3 has conductivity, and has the second electrode 3a of the upper face side that is electrically connected with this conductive part 3b.In addition, also the second conductive layer 1c can be set, and by using resin adhesive etc. that lid 3 is bonded on the matrix 1.

Lid 3 passes through at Fe-Ni-Co alloy, Fe-Ni alloy, aluminium metal or Al such as (Al) ₂O ₃The surface of potteries such as based sintered material, AlN based sintered material, glass ceramics applies the conduction material and constitutes.

When lid 3 was made of metal, the following conductive part 3b of lid 3 and top leading-out portion became and conduct, and have realized the function as lid 3.In addition, be good at the surface coverage Ni of lid 3 layer, Au layer, Al layer etc. as protective layer.And the mode of lid 3 not electrically contact with the leading-out portion 2a of the first electrode 2d isolated between the peripheral part of lid 3 and the protuberance 2 and is engaged in matrix 1.Isolation to be engaging lid 3 in the mode that the space is set between lid 3 and the first electrode 2d, or between insulating material such as configuration resin plate and realizing.

And, when lid 3 is made of metal, also can to the side of lid 3 and above the leading-out portion 2a side of the first electrode 2d implement insulation processing.Under this situation, can be not with the leading-out portion 2a of the first electrode 2d isolator lid 3 is engaged in matrix 1 above.And, if the top insulation of lid 3 processing for example is that the area that then residues in the top conductivity second electrode 3a of lid 3 equates to be good when forming insulator layer such as resin bed with the area approximation of the leading-out portion 2a of the first electrode 2d.Thus, when on circuit substrate 100, engaging scolding tin, the surface tension balance of the scolding tin among the second electrode 3a and the leading-out portion 2a, the installation site of container A is difficult for skew.

When lid 3 is made of pottery, in conductive part 3b that is electrically connected lid 3 and the part of the second electrode 3a, the metal film layer that be formed with the metal conducting layer that is made of W, Mo, Mn etc. or the Al that implements by metallikon or metal evaporation method etc. constitutes.For example, in advance by Al ₂O ₃The surface of the lid 3 that based sintered material constitutes forms the metal conducting layer that is made of refractory metals such as W, Mo, Mn.And, in order to be electrically connected the conductive part 3b and the second electrode 3a, connect the conductive part 3b and the second electrode 3a, or to conduction road via the side of lid 3 by through electrode, connect at surface formation metal conducting layer etc.

Under this situation, preferably lid 3 be pre-formed with the same metal conducting layer of the first conductive layer 1b, the second conductive layer 1c and the first electrode 2d be good, when forming metal conducting layer, can use same metal cream, thus, can make efficiently.And, under this situation, on the metal conducting layer below being formed at lid 3, preferably same with the first conductive layer 1b and the second conductive layer 1c, cover formation Ni layer, cover formation Au layer as required thereon or cover formation Al etc. by known sputtering method, vapour deposition method etc.Thus, can prevent to be formed on the corrosion of the following metal conducting layer of lid 3 effectively, and can make the second top electrode 3a that is formed at lid 3, wetability excellence with scolder materials such as Ag scolder, Au-tin (Sn) scolding tin, thereby, can make more firm with engaging of wiring 101 of first power circuit of circuit substrate 100 and second source wiring 102.

And the second conductive layer 1c of the metal conducting layer of this lid 3 or metal film layer and matrix 1 engages by Al scolder, silver (Ag) scolder, Ag-copper (Cu) scolder or Au-tin (Sn) scolding tin.

In addition, as shown in Figure 6, the preferred metal framework 6 that constitutes by Fe-Ni-Co alloy, Fe-Ni alloy, Al etc. that on the second conductive layer 1c, engages in advance.According to this formation, can replace lid 3 being engaged in metal framework 6 by the brazing metal material, and by the electric resistance welding method, for example stitch the weldering method easily with lid 3 tight engagement in matrix 1.That is, can pass through electric resistance welding method gas-tight seal recess 1a inside easily.And by engaging lid 3 via metal framework 6, operating efficiency is especially more excellent than engaging lid 3 by scolding tin or resin bonding material.In addition, deform, also can absorb the action effect of this distortion by metal framework 6 even exist matrix 1.

And lid 3 is by combinations thereof, and as the plate object that is made of pottery, also portion is provided with and connects the through hole of interarea up and down in the central, and metallic plate in embedding in this through hole.Like this, if the side of lid 3 becomes insulator, then can eliminate in the danger of the side of lid 3 generation with the electrical short of leading-out portion 2a.

In container of the present invention; as shown in Figure 6; preferably when the corrosion resistance of the first conductive layer 1b is insufficient, the surface being formed in the face of the first conductive layer 1b of the bottom surface of recess 1a covers protection metal levels 5 such as forming Al by known sputtering method, vapour deposition method etc.In this constitutes, by to difficult materials of being corroded such as protection metal level 5 selection Al, can protect the first conductive layer 1b not corroded by electrolyte B-4 by electrolyte B-4, protection metal level 5 plays the effect of collector body.As a result, can prevent that the resistance of the first conductive layer 1b from increasing, and, can prevent that the first conductive layer 1b is dissolved among the electrolyte B-4, thus, can keep the performance of battery B or double charge layer capacitor B for a long time well.

And then, preferably also cover protection metal levels such as forming Al on the surface of the second conductive layer 1c, can prevent that the second conductive layer 1c from being corroded by electrolyte B-4, thereby can keep the performance of battery B or double charge layer capacitor B well.But, in Fig. 2 A～Fig. 2 C, Fig. 3 A～Fig. 3 B and mode shown in Figure 5 since the second conductive layer 1c on be clamped in the sidewall 1d of matrix 1 and lid 5 below between the position, so, few with contacting of the electrolyte B-4 that encloses recess 1a inner face.Therefore, even covering protection metal level not on the second conductive layer 1c also can significantly not reduce the performance of battery B or double charge layer capacitor B.

This protects metal level 5, when covering is formed with insulating paste layer 4, from the first conductive layer 1b and the insulating paste layer 4 in the face of the bottom surface of recess 1a, and then the inner face top in the face of recess 1a to the sidewall 1d of matrix 1 forms good above the second conductive layer 1c.This protects metal level 5; do not adhere to the part of protecting metal level 5 by being configured to cover by the shield member of formations such as stainless steel (SUS) or Fe-Ni alloy in advance; implement known metal sputtering method or metal evaporation method from it, thereby be formed at the position of regulation.

As shown in Figure 6, preferably have in the mode of metal framework 6, except metal framework 6 and the composition surface second conductive layer 1c, at exposing surface also covering protection metal level 5 at joint.By this formation; the second conductive layer 1c and metal framework 6 and contact-making surface electrolyte B-4 are by 5 protections of protection metal level; prevented that the second conductive layer 1c and metal framework 6 are dissolved among the electrolyte B-4, thereby can keep the performance of battery B or double charge layer capacitor B for a long time well.

And, by such formation protection metal level 5, can cover these the first conductive layer 1b or the second conductive layer 1c fully, thereby, these the first conductive layer 1b that cause by electrolyte B-4 or the corrosion of the second conductive layer 1c can be prevented.

As mentioned above, according to container A of the present invention, battery B by will having used container A or Figure 1A～Fig. 1 C of double charge layer capacitor B, Fig. 2 A～Fig. 2 C, the upper face side of Fig. 3 A and Fig. 3 B and Fig. 4～Fig. 6 is installed down, promptly, by installing with the leading-out portion 2a of the first electrode 2d of container A and the mode that the second electrode 3a is opposite to circuit substrate 100 sides, because the leading-out portion of the lid 3 and the first electrode 2d becomes circuit substrate 100 sides, so, its opposition side (Figure 1A～Fig. 1 C, Fig. 2 A～Fig. 2 C, the matrix 1 that the electric portion that lives is not set of Fig. 3 A and Fig. 3 B and Fig. 4～Fig. 6 following) be exposed to the outside.Therefore, when electronic unit etc. (not shown) is installed on circuit substrate 100, electronic unit or be used to is electrically connected wiring conductor of electronic unit and circuit substrate 100 etc. can be with the electric portion of work of battery B or double charge layer capacitor B, promptly the leading-out portion and the second electrode 3a of the first electrode 2d contact, thereby can prevent electrical short.

And, in this container A, because the second electrode 3a is formed at lid 3, so, can simplify the flow chart of making matrix 1, can suitably produce container A in batches.And, because lid 3 also becomes simple structure, so, also be fit to produce in batches.

And, when be formed on protuberance 2 above the leading-out portion 2a of the first electrode 2d and the second electrode 3a of lid 3 when being disposed in the approximate same plane, as shown in Figure 7, with top (being formed with the leading-out portion 2a of the first electrode 2d and the face of the second electrode 3a) of having used the battery B of this container A or double charge layer capacitor B towards downside, be loaded into flat circuit substrate 100 above, can easily the first electrode 2d and the second electrode 3a be electrically connected on the wiring 101 of first power circuit and the second source wiring 102 of circuit substrate 100 with other electronic unit by surface mounting method.

Here, approximate same plane is meant, can not bring to circuit substrate 100 in the parallel surface of obstacle degree Plane Installation, the scope of for example using electrical connection material such as scolding tin can carry out the normal electrical connection usually.For example, if the difference in height on the surface of the surface of the leading-out portion 2a of the first electrode 2d and the second electrode 3a only is about 0.3mm, then easily by between usual way first and second power circuit wiring 101,102 by scolding tin connecting circuit substrate 100.Otherwise,,, also can realize container A of the present invention even protuberance 2 then specially is not set if for example the thickness of lid 3 is thinner than 0.3mm.

When the leading-out portion 2a of the first electrode 2d and the second electrode 3a are not disposed in the approximate same plane, also can be between the wiring 101 of first power circuit and second source wiring 102 of circuit substrate 100, according to the jump dimensional configurations connecting elements of the first electrode 2a and the second electrode 3a.

And, use at lid 3 under the situation of good thermally conductive materials of metallic etc., when battery B or double charge layer capacitor B action, even be contained in the battery or the heating of double charge layer capacitor key element of container A, also can dispel the heat effectively to circuit substrate 100 from lid 3, rise owing to can suppress the temperature of battery B or double charge layer capacitor B, so, the performance of battery B or double charge layer capacitor B can be improved.

Below, battery B of the present invention or double charge layer capacitor B are elaborated.

As shown in Figure 7, battery B of the present invention comprises: the container A of the invention described above; Positive electrode B-1, it is loaded into the top of the first conductive layer 1b and is electrically connected with it; Negative electrode B-2, its mode to connect airtight by the spacer B-3 that in electrolyte B-4, floods, be loaded into positive electrode B-1 above; With lid 3, its be engaged in mode of stopping up recess 1a matrix 1 sidewall 1d above, and with negative electrode B-2 butt, be electrically connected.

In addition, also positive electrode B-1 and negative electrode B-2 can be disposed on the contrary, negative electrode B-2 is loaded into the first conductive layer 1b side and is electrically connected with it, positive electrode B-1 is disposed at lid 3 sides and is electrically connected with lid 3.

In addition, as shown in Figure 7, double charge layer capacitor B of the present invention comprises: the container A of the invention described above; The first polarity electrode B-1, it is loaded into the top of the first conductive layer 1b and is electrically connected with it; The second polarity electrode B-2, its with the mode of connecting airtight by the spacer B-3 that is immersed among the electrolyte B-4 be loaded into the first polarity electrode B-1 above; With lid 3, its be engaged in mode of stopping up recess 1a matrix 1 sidewall 1d above, and be connected to the second polarity electrode B-2 and be electrically connected with it.

Thus, because battery B of the present invention or double charge layer capacitor B possess the container A of the invention described above, so, can easily be connected in circuit substrate 100 by surface mounting method, can realize airtight reliability height, impurity hardly can stripping in electrolyte B-4, thus, can be used as and can stablize battery B or the double charge layer capacitor B that discharges and recharges.

The positive electrode B-1 of battery B of the present invention comprises by LiCoO ₂Or LiMn ₂O ₄At the electrode of the tabular or sheet of positive active material that constitutes and electric conducting materials such as acetylene black (acetylene black) or graphite, and negative electrode B-2 is the tabular or pellet electrode that comprises the negative electrode active material that is made of material with carbon elements such as coke or carbon fibers.

Positive electrode B-1 has added in above-mentioned positive active material in the material of above-mentioned electric conducting material, adhesives such as polytetrafluoroethylene or Kynoar have been added, and be mixed into paste, use known scraper (doctor blade) method or roller (roller) forming process to be configured as sheet this, then this sheet is blocked precedent as polygon or toroidal and make.

Equally, negative electrode B-2 is in above-mentioned negative electrode active material, adds adhesives such as polytetrafluoroethylene or Kynoar, and is mixed into paste, this is used knownly scrape the skill in using a kitchen knife in cookery or the roller forming process is configured as sheet, then this sheet is blocked precedent and make as polygon or toroidal.

And, spacer B-3 is made of the nonwoven fabrics of polyolefine fiber system or the micro-porous film of polyolefin system etc., this spacer B-3 is by being flooded by electrolyte B-4 and being disposed between positive electrode B-1 and the negative electrode B-2, can prevent that positive electrode B-1 from directly contacting with negative electrode B-2, and make the electrolyte B-4 between positive electrode B-1 and the negative electrode B-2 removable, thereby electric current is flowed.

Electrolyte B-4 for example can use acid such as lithium salts such as tetrafluoride lithium borate and hydrochloric acid, sulfuric acid, nitric acid are dissolved into solution in the organic solvents such as dimethoxy-ethane or propene carbonate.

The first polarity electrode B-1 of double charge layer capacitor B of the present invention and the second polarity electrode B-2, be that carbonization for example activates phenolic fiber (novoloid fibre) and obtains, activation is to be undertaken by this fiber is contacted with activation gases such as high-temperature vapors under 800～1000 ℃ high-temperature atmosphere, make the part gasification of volatile ingredient in the carbide or carbon atom, mainly making interior surface area reach 1 * 10 by the microstructure expansion that makes 1～10nm ⁶m ²The above operation of/kg is made.Double charge layer capacitor B of the present invention does not have the polarity among the first electrode 2a and the second electrode 3a, the first electrode 2a side can be used as anode, and the second electrode 3a side is used as negative electrode, can use with opposite polarity yet.

The electrolyte B-4 of double charge layer capacitor B is for example with phosphorus hexafluoride acid lithium (LiPF ₆) wait lithium salts or tetrafluoride boric acid etamon ((C ₂H ₅) ₄NBF ₄) 4 grades of ammonium salts of grade in an imperial examination are dissolved into the electrolyte in propene carbonate (PC) or sulfolane (SLF) equal solvent.

And, for example use glass fibre or polyphenylene sulfide, PETG, polyamide etc. to have resin of stable on heating porous matter etc. among the spacer B-3.

And, after being received into the first polarity electrode B-1, the second polarity electrode B-2, spacer B-3 in the container 1, use injecting mechanism such as syringe for example electrolyte B-4 to be injected into the inside of container A from the opening portion of recess 1a, after the injection, by with lid 3 airtightly solder joints to sidewall 1d above, thus, can obtain the double charge layer capacitor B that the inside of container A is hermetically sealed.

Because this double charge layer capacitor B utilizes the electric charge accumulation of the electric double layer that forms at the interface of above-mentioned two polarity battery lead plate B-1, B-2 and electrolyte B-4, so, in surpassing proof voltage and limit that the electricity of electrolyte B-4 decomposes does not take place, can accumulate the great electric charge corresponding with the surface area of polarity battery lead plate B-1, B-2.

Particularly, used the double charge layer capacitor B of organic solution system, compared, can make driving voltage reach 2～4 times with the water solution system double charge layer capacitor B that has used the aqueous solution such as aqueous sulfuric acid in the electrolyte, because if establishing voltage is that V, electric capacity are C, then accumulabile electric energy E is by E=CV ²Therefore/2 expressions, can obtain big energy density.

Though the electrolyte B-4 corrosivity of this battery B or double charge layer capacitor B and dissolubility height, but according to container A of the present invention, matrix 1 is difficult for involved organic solvent and sour electrolyte B-4 erosion, and, do not exist to be blended into the situation that makes electrolyte B-4 deterioration the electrolyte B-4 yet, thereby can keep battery performance well from the impurity of container A stripping.

And, can be with the leading-out portion 2a and the second electrode 3a of the first electrode 2d of battery B or double charge layer capacitor B, be configured to the face side of circuit substrate 100 and Plane Installation in the mode that is opposite to circuit substrate 100, thereby, can easily the face that is provided with the first electrode 2a and the second electrode 2b be electrically connected to first power circuit wiring 101 and the second source wiring 102 of circuit substrate 100.Thus, can make power circuit compactness on the circuit substrate 100.And, owing to battery B or double charge layer capacitor B and other electronic unit can be surface mounted on the circuit substrate 100 simultaneously, so, the electronic installation of productivity ratio excellence become.And, since battery B or double charge layer capacitor B can be configured in electronic unit near, so the response of electronic unit improves.

In addition, the present invention is defined in the foregoing description, can carry out various changes without departing from the spirit and scope of the present invention.For example, battery B or the double charge layer capacitor B that has used the container A with a recess 1a is illustrated, but also can be container A with a plurality of recess 1a, under this situation, as long as lid 5 is arranged to whole lids 5 that cover with each recess 1a, or the polylith lid 5 of each recess 1a of installation covering gets final product.Like this, when use has the container A of a plurality of recess 1a, be made in battery or the double charge layer capacitor B of each recess 1a by being connected in parallel, can constitute the battery or the double charge layer capacitor B of high power capacity, and, by being connected in series, can constituting and can supply with high-tension battery B.

And so-called term up and down in the explanation of above-mentioned execution mode just is used to illustrate the position relation on the accompanying drawing and uses, and is not to mean that the position in the actual use concerns.

The present invention does not break away from its spirit or main feature, can implement with other variety of way.Therefore, all aspect of described execution mode is only as illustration, and scope of the present invention is that the scope of patent application is represented, is not subjected to any constraint of specification text.And, belong to the distortion or the change of patent claim, all within the scope of the invention.

Claims

1. container possesses:

Matrix, it is formed by sidewall and bottom, and has the recess of accommodating the electric power storage key element in inside;

Lid, its upper face side become second electrode and are electrically connected with the conductive part of following side, are engaged in the mode of stopping up described recess above the sidewall of described matrix.

2. container according to claim 1 is characterized in that,

The surface of the described leading-out portion of described first electrode, forming with the surface of described second electrode is approximate becomes same plane.

3. container according to claim 1 is characterized in that,

The described leading-out portion of described first electrode, on the sidewall of described matrix, be configured in protuberance above; This protuberance also is located at the opening portion of described recess.

4. container according to claim 1 is characterized in that,

Described first electrode arrives mode in the face of the bottom surface of described recess with an end, and the perforation conductor of the inside by being disposed at described matrix is connected with described conductive layer.

5. container according to claim 4 is characterized in that,

The connecting portion of described first electrode and described perforation conductor is configured in the face of the described matrix inside between the bottom surface of described recess and described matrix following.

6. battery possesses:

Each described container in the claim 1～5; With

Described lid with the mode of the opening that stops up described recess be engaged in described matrix above,

7. double charge layer capacitor possesses:

Each described container in the claim 1～5; With

8. electronic installation comprises:

Circuit board, it has the power circuit wiring; With

Be installed on the described battery of claim 6 on this circuit board,

Make the leading-out portion of described first electrode and described second electrode contraposition in described circuit board, be connected with described power circuit wiring by conductive bonding material.

9. electronic installation comprises:

Circuit board, it has the power circuit wiring; With

Be installed in the described double charge layer capacitor of claim 7 on this circuit board,