CN103151475A - Insulated sealing structure of electrode - Google Patents
Insulated sealing structure of electrode Download PDFInfo
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- CN103151475A CN103151475A CN2013101030298A CN201310103029A CN103151475A CN 103151475 A CN103151475 A CN 103151475A CN 2013101030298 A CN2013101030298 A CN 2013101030298A CN 201310103029 A CN201310103029 A CN 201310103029A CN 103151475 A CN103151475 A CN 103151475A
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- end cap
- electrode
- collector plate
- insulated enclosure
- periphery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses an insulated sealing structure of an electrode. An insulated sealing body of the insulated sealing structure of the electrode is an insulated sealing cover which is sheathed on the periphery of a lead-out structure of the electrode. One end of the insulated sealing cover is erected on the end face of a cell at the back of the lead-out structure of the electrode and the periphery of the cell is sheathed with the other end of the insulated sealing cover. A positioning wrinkle which is matched and complementary with a deforming wrinkle and is embedded into a groove is arranged at the periphery of the middle part of the insulated sealing cover. Thus, the integrated insulated sealing cover is adopted to separate the lead-out structure of the electrode from a shell. The periphery of the lead-out structure of the electrode can be sheathed with the insulated sealing cover conveniently and rapidly and the insulated sealing cover is pressed tightly against the lead-out structure of the electrode by virtue of a seal turned edge and the deforming wrinkle, so that the assembly process is simplified, the assembly cycle is shortened, the assembly efficiency is increased, the loss of materials in power storage devices is reduced and the manufacturing cost is reduced.
Description
Technical field
The present invention relates to the electrode insulation technical field of sealing technology, relate in particular to the electrode insulation hermetically-sealed construction of a kind of battery or super capacitor.
Background technology
At present, the electrode of energy storage component (comprising battery and super capacitor) commonly used is drawn insulation and sealing structure as shown in Figure 1, this energy storage component is by battery core 01, housing 02, electrode deriving structure and insulated enclosure body, the lower end conductive communication of housing 02 and battery core 01, and electrode deriving structure conductive communication is in the upper end of battery core 01, therefore need to be with the insulated enclosure body every being located between electrode deriving structure and housing, contacting with housing 02 short circuit problem that is caused to avoid the electrode deriving structure.in concrete structure, be processed with the distortion fold 02-1 that is absorbed in end cap 03 and collector plate 04 gap on housing 02, the sealing at this distortion fold 02-1 and the housing 02 upper end open place 02-2 that turns edge is engaged on the edge, two ends up and down that axially is clamped on end cap 03, and distortion fold 02-1 is pressed on the edge of collector plate 04, thereby make the position that needs to insulate between housing 02 and electrode deriving structure the upper surface of end cap be arranged adjacent to the part of outer peripheral face, the outer peripheral face of end cap 03, the lower surface of end cap 03 is adjacent to the part of outer peripheral face, the upper surface of collector plate 04 is adjacent to the part of outer peripheral face, the outer peripheral face of collector plate 04, therefore above-mentioned insulated enclosure body is divided into insulated enclosure cover 05, middle insulated enclosure circle 06 and lower insulated enclosure cover 07, wherein going up insulated enclosure cover 05 sets up on the upper surface of end cap 03, the upper end of upper insulated enclosure cover 05 is between the sealing that is located at housing 02 turns edge the upper surface of 02-2 and end cap 03, the lower end is between the outer peripheral face of the inner peripheral surface that is located at housing and end cap 02, middle insulated enclosure circle 06 is between the lower surface that is located at distortion fold 02-2 and end cap 03, lower insulated enclosure cover 07 is set up on the upper surface of collector plate 04, the upper end of lower insulated enclosure cover 07 between the upper surface that is located at distortion fold 02-2 and collector plate 04, the lower end is between the outer peripheral face of the inner peripheral surface that is located at housing 02 and collector plate 04, thereby disperse the insulated enclosures cover of installation and the purpose that the insulated enclosure circle has reached isolated electrode deriving structure and housing by three, but also because distributed insulated enclosure body structure has caused energy storage device that the problem of suffering is installed, as such energy storage device can assemble according to following installation steps:
In the 1st step, collector plate 04 and battery core 01 conduction are solidly fixed;
In the 2nd step, the assembly after step 1 is installed is installed in housing 02;
The 3rd goes on foot, and lower insulated enclosure cover 07 is arranged on the shaft shoulder place of collector plate 04;
The 4th step, housing 02 is carried out slot rolling, the slot rolling position is diagram distortion fold 02-2 correspondence position;
The 5th step, housing 02 is carried out the height shaping, the circular arc state when making slot rolling becomes the step state;
In the 6th step, insulated enclosure circle 06(is O type circle in step place's installation of the 5th one-step forming);
The 7th step is at the upper end of the collector plate 04 interference end cap 03 that is connected;
In the 8th step, install insulated enclosure cover 05 at the shaft shoulder place of end cap 03;
In the 9th step, seal at the opening part of housing 02 processings, with the sealing that the obtains needs 02-1 that turns edge.
In therefore existing production technology, the reason of part erection sequence must adopt three insulated enclosure members to combine and realize sealing and insulation; And relatively it seems with regard to production technology, in prior art, the insulation and sealing structure assembly technology operation of energy storage device is longer, production efficiency is low, and because the rigging error that three independent insulated enclosure members in use occur can be brought impact to the insulated enclosure performance of whole insulated enclosure body, so that exist more potential uncertain influencing factor, the i.e. carelessness of the defective of any one part or assembling process all can cause the insulated enclosure of monomer to lose efficacy in energy storage device.
Summary of the invention
The purpose of this invention is to provide a kind of electrode insulation hermetically-sealed construction simple in structure.
In order to realize above purpose, the technical scheme of electrode insulation hermetically-sealed construction of the present invention is as follows:
a kind of electrode insulation hermetically-sealed construction, comprise the electrode deriving structure that end cap and collector plate consist of, the peripheral sheathed housing of electrode deriving structure, be folded in the insulated enclosure body between housing and electrode deriving structure, the periphery of described electrode deriving structure is provided with the groove that caves inward, has the distortion fold that caves inward that is in described groove location place on described housing, described insulated enclosure body is the insulated enclosure cover that is set on electrode deriving structure periphery, one end of insulated enclosure cover has to be set up at the electrode deriving structure dorsad on the end face of battery core, the other end of insulated enclosure cover is set on the periphery of battery core, be provided with on the middle part periphery of insulated enclosure cover and coincide complementary with described distortion fold, and embed location fold in described groove.
Described groove is the notch annular groove outwardly along the circumferential extension of electrode deriving structure.
Described groove is on the periphery of end cap.
Described groove is that the outer peripheral face by the end face of end cap and collector plate surrounds, and the outer peripheral face of described collector plate sinks to the inboard of end cap outer peripheral face.
Described end cap is provided with annular breach in an end edge of collector plate dorsad, and annular breach has the stopping surface of the annular of collector plate dorsad, and described location turns edge to set up and coordinating on described stopping surface and with the stopping surface block on end cap.
It is stupefied that the outside of described stopping surface convexes with the convex annular of extending along the edge of end cap, and described insulated enclosure puts to be provided with and is in turn edge root and be wrapped in the parcel of described convex annular on stupefied of location.
Be respectively arranged with locator protrusions and location hole on the opposing end surface of described end cap and collector plate, locator protrusions transition inserting is in location hole, and be provided with the joint portion in locator protrusions and location hole periphery in end cap and collector plate end face binding site place, be provided with the Welding Structure of be connected end cap and collector plate on the joint portion.
Described end cap comprises that end cap disk body, end cap disk body are in the inner end cap projection and the outer end cap projection that are convexly equipped with on an end end face of collector plate, described inner end cap projection is sleeve-shaped, and described location hole is that the opening that surrounds of the end face by inner end cap projection and end cap is towards the blind hole of collector plate; The outer end cap projection is in the periphery of inner end cap projection, and described location division is in the end face of outer end cap projection and the end face binding site place of collector plate.
The present invention adopts the insulated enclosure cover of integral type to come spaced-apart electrodes deriving structure and housing, the insulated enclosure cover can conveniently be sleeved on the periphery of electrode deriving structure, and the sealing on the dependence housing turns edge and is out of shape fold the insulated enclosure cover is pressed on the electrode deriving structure, thereby simplified assembly technology, shortened assembly period, improve efficiency of assembling, and reduced the loss of material in the energy storage device, reduced manufacturing cost.Rely on simultaneously sealing on housing to turn edge and be out of shape fold in end-cover axle to positioning, guarantee the reliability and stability that end cap is installed, further guarantee the installation reliability of whole electrode deriving structure.Solved the problem of electrode insulation sealing assembly technology length, complex structure and insulated enclosure weak effect in the prior art.
Description of drawings
Fig. 1 is the structural representation of electrode insulation hermetically-sealed construction in prior art;
Fig. 2 is the structural representation of the embodiment of the present invention 1;
Fig. 3 is the partial enlarged drawing of electrode insulation hermetically-sealed construction part in Fig. 2;
Fig. 4 is the structural representation of the embodiment of the present invention 2;
Fig. 5 is the structural representation of the embodiment of the present invention 3.
Embodiment
The embodiment 1 of electrode insulation hermetically-sealed construction of the present invention, as shown in Figures 2 and 3, this electrode insulation hermetically-sealed construction is made of electrode deriving structure, insulated enclosure cover 6 and housing 5, and the electrode deriving structure is made of end cap 1 and upper collector plate 2.upper collector plate 2 is welded on the upper surface of battery core 3, and electrically contact with battery core 3, end cap 1 conduction is fixed on the upper surface of collector plate, and end cap is by the end cap disk body, the reference column that end cap disk body lower surface is convexly equipped with in center position and the endcap bosses that is convexly equipped with in the position, edge consist of, convex with the endcap bosses 1-1 of annular in the position, edge, lower surface of end cap 1, the lower surface of endcap bosses 1-1 is fitted on the upper surface of collector plate 2, the outer peripheral face of endcap bosses 1-1 is concordant with the outer peripheral face of upper collector plate 2, and be arranged with insulated enclosure cover 6 on the periphery of end cap 1, set up on end cap 1 by the location of inwardly the turning over 6-1 that turns edge the upper end of insulated enclosure cover 6, the lower end extends through and is set on the periphery of battery core 3 from the downside of upper collector plate 2, so that the outer peripheral face of end cap 1 and upper collector plate 2 is wrapped in the inner peripheral surface of insulated enclosure cover 6.Housing 5 is provided with the annular of inwardly turning in the annular opening of upper end open along part the sealing 5-1 that turns edge, this sealing 5-1 that turns edge is pressed on the 6-1 that turns edge of the location on insulated enclosure cover 6 on the upper surface of end cap 1; Offer the breach of annular in the position, edge, upper surface of end cap 1, this breach has towards the top and the stopping surface of the annular of extending along the edge circumferencial direction of end cap 1, and the 6-1 that turns edge of the location on insulated enclosure cover 6 just is pressed on this stopping surface by the 5-1 that turns edge of the sealing on housing 5, and 6-1 coordinates at the above-below direction block with end cap 1 so that the location of insulated enclosure cover 6 turns edge.Offer the groove 1-2 of the annular of extending along the edge circumferencial direction of end cap 1 in endcap bosses 1-1 position on the periphery of end cap 1, and housing 5 is provided with the distortion fold 5-2 of the annular that caves inward in the corresponding position of described groove 1-2, sealing fold 6-2 after the corresponding part crimp of this distortion fold 5-2 with insulated enclosure cover 6, in the described groove 1-2 of corresponding part formation embedding of insulated enclosure cover 6, sealing fold 6-2 coordinates with the two side walls block of described groove 1-2 on above-below direction.
Convex with the columned reference column 1-3 that is in center position on the lower surface of end cap 1, offer on the axis of reference column 1-3 opening towards location blind hole 1-4; Convex with the circular locator protrusions 2-1 that is in center position on the upper surface of upper collector plate 2, this locator protrusions 2-1 gap is inserted in described location blind hole 1-4.The upper surface of the lower surface of the outer peripheral face of the inner peripheral surface of endcap bosses 1-1, reference column 1-3, end cap 1 and upper collector plate 2 surrounds the space of annular.Has the connecting portion on edge with upper collector plate 2 in the position, lower surface of endcap bosses 1-1, be provided with the Welding Structure that is welded and is fixed together for both between connecting portion and upper collector plate 2, end cap 1 and upper collector plate 2 are fixed together by this Welding Structure.
The opening portion of housing 5 on being wrapped in described insulated enclosure cover 6 outer surfaces, also has a cecum part the battery core of being wrapped in 3 outer peripheral faces and lower surface, this cecum part is made of the shell portion on the periphery that is set in battery core 3 and the bottom parts that is in outside the lower surface of battery core 3, and with lower header plate 4 be folded between bottom parts and battery core 3, to realize the electrical connection between housing 5 and battery core 3 by lower header plate 4.
In the assembling process of carrying out energy storage device, carry out in accordance with the following steps:
Step 1, upper and lower collector plate 4 is weldingly fixed on respectively on the upper and lower end face of battery core 3, and the locator protrusions 2-2 transition inserting that makes upper collector plate 2 upper ends by the mode of knocking in or being pressed into is in the location hole of end cap 1 lower end, and forms the joint portion of end cap 1 and upper collector plate 2 at the end face binding site place of the outer end cap projection 1-3 of end cap 1 lower end and upper collector plate 2;
Step 4, sheathed housing 5 on the periphery of insulated enclosure cover 6;
The assembling of energy storage device is provided according to the correlation step that provides in above-mentioned electrode insulation sealing technology embodiment, after assembling is completed, distortion fold 5-2 on housing 5 will overlap insulated enclosure sealing crimp on 6 and be pressed in groove 1-2 on end cap 1, sealing on housing 5 5-1 that turns edge can overlap insulated enclosure location on 6 6-1 that turns edge and is pressed in the breach of annular of end cap 1 upper end, and the turn edge stopping surface of 6-1 and breach of location coordinates at the above-below direction block.Therefore in the process of assembling energy storage device, can complete efficiently the assembling of insulated enclosure cover, and the distortion fold on housing turns edge with sealing in the situation that tight extruding insulation sealing shroud, can guarantee that not only housing and end cap are in conjunction with tight, and rely on the sealing crimp and the location that obtain after the distortion of insulated enclosure cover to turn edge, thereby guaranteed the reliability of electrode part insulated enclosure, solved the problem of electrode insulation sealing assembly technology length, complex structure and insulated enclosure weak effect in the prior art.
The embodiment 2 of electrode insulation hermetically-sealed construction of the present invention, as shown in Figure 4, the difference of the present embodiment and embodiment 1 is, locator protrusions and location blind hole that end cap 21 and upper collector plate 22 opposite ends arrange have respectively been removed, namely removed the location structure between end cap 21 and upper collector plate 22, and the reliability that is connected between the assurance end cap 21 of the Welding Structure between dependence endcap bosses 21-1 and upper collector plate 22 and upper collector plate 22.
The embodiment 3 of electrode insulation hermetically-sealed construction of the present invention, as shown in Figure 5, the difference of the present embodiment and embodiment 2 is, removed the groove of offering on the outer peripheral face of end cap 31 at the present embodiment, and make collector plate 32 consist of the necking down structure between end cap 31 and battery core 33, thereby the outer peripheral face that makes the opposing end surface of end cap 31 and battery core 33 and upper collector plate 32 surrounds the groove 31-2 of the annular that caves inward, and the sealing crimp 36-2 on the distortion fold 35-2 on corresponding housing 35 and insulated enclosure cover 36 all is in described groove 31-2 position; Be provided with to the stupefied 31-6 of the convex annular of upper process outside the stopping surface of end cap 31 upper ends, the stupefied 31-6 of this convex annular is the upper end bending part of insulated enclosure cover 36 and housing 35 jack-up that makes progress, and sets out and is in the parcel of described convex annular on stupefied with the turn edge root of 36-1 of the location of 35-1 and insulated enclosure cover 36 that turns edge of the sealing at housing 35.
In the above-described embodiments, the electrode deriving structure partly be used for the groove corresponding with the sealing fold of the distortion fold of housing and insulated enclosure cover be in end cap outer peripheral face or on collector plate outer peripheral face indentation locations of structures of living in place, in other embodiments, described groove also can use the pit that circumferentially distributes along the edge of end cap to replace, corresponding when described pit is arranged on the periphery of upper collector plate, pit is in enclosing in gap of offering on collector plate; In addition, described pit or groove also can be between the opposing end surface of end cap and upper collector plate in prior art, and be namely directly that upper and lower insulated enclosure cover of the prior art and middle insulated enclosure circle is whole with the replacement of the cover of the insulated enclosure in above-described embodiment.
In the above-described embodiments, end cap and collector plate are discoid, and to adapt to the outer cylindrical profile of most energy storage device in existing market, in other embodiments, end cap and collector plate can be also prism-shaped, to be applicable to the energy storage device of prism-shaped profile.
In other embodiments, described groove also can be distributed between the opposite flank of end cap and collector plate between the opposite flank of position, edge or end cap and battery core in the peripheral position place of collector plate, perhaps described groove is replaced with pit, each pit extends the bearing of trend distribution along the edge of end cap.
Claims (8)
1. electrode insulation hermetically-sealed construction, comprise the electrode deriving structure that end cap and collector plate consist of, the peripheral sheathed housing of electrode deriving structure, be folded in the insulated enclosure body between housing and electrode deriving structure, the periphery of described electrode deriving structure is provided with the groove that caves inward, has the distortion fold that caves inward that is in described groove location place on described housing, it is characterized in that, described insulated enclosure body is the insulated enclosure cover that is set on electrode deriving structure periphery, one end of insulated enclosure cover has to be set up at the electrode deriving structure dorsad on the end face of battery core, the other end of insulated enclosure cover is set on the periphery of battery core, be provided with on the middle part periphery of insulated enclosure cover and coincide complementary with described distortion fold, and embed location fold in described groove.
2. electrode insulation hermetically-sealed construction according to claim 1, is characterized in that, described groove is the notch annular groove outwardly along the circumferential extension of electrode deriving structure.
3. electrode insulation hermetically-sealed construction according to claim 1, is characterized in that, described groove is on the periphery of end cap.
4. electrode insulation hermetically-sealed construction according to claim 1, is characterized in that, described groove is that the outer peripheral face by the end face of end cap and collector plate surrounds, and the outer peripheral face of described collector plate sinks to the inboard of end cap outer peripheral face.
5. the described electrode insulation hermetically-sealed construction of any one according to claim 1 to 4, it is characterized in that, described end cap is provided with annular breach in an end edge of collector plate dorsad, the annular breach has the stopping surface of the annular of collector plate dorsad, and described location turns edge to set up and coordinating on described stopping surface and with the stopping surface block on end cap.
6. electrode insulation hermetically-sealed construction according to claim 5, it is characterized in that, it is stupefied that the outside of described stopping surface convexes with the convex annular of extending along the edge of end cap, and described insulated enclosure puts to be provided with and is in turn edge root and be wrapped in the parcel of described convex annular on stupefied of location.
7. the described electrode insulation hermetically-sealed construction of any one according to claim 1 to 4, it is characterized in that, be respectively arranged with locator protrusions and location hole on the opposing end surface of described end cap and collector plate, locator protrusions transition inserting is in location hole, and be provided with the joint portion in locator protrusions and location hole periphery in end cap and collector plate end face binding site place, be provided with the Welding Structure of be connected end cap and collector plate on the joint portion.
8. electrode insulation hermetically-sealed construction according to claim 7, it is characterized in that, described end cap comprises that end cap disk body, end cap disk body are in the inner end cap projection and the outer end cap projection that are convexly equipped with on an end end face of collector plate, described inner end cap projection is sleeve-shaped, and described location hole is that the opening that surrounds of the end face by inner end cap projection and end cap is towards the blind hole of collector plate; The outer end cap projection is in the periphery of inner end cap projection, and described location division is in the end face of outer end cap projection and the end face binding site place of collector plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103029.8A CN103151475B (en) | 2013-03-28 | 2013-03-28 | Insulated sealing structure of electrode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103029.8A CN103151475B (en) | 2013-03-28 | 2013-03-28 | Insulated sealing structure of electrode |
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| CN103151475A true CN103151475A (en) | 2013-06-12 |
| CN103151475B CN103151475B (en) | 2015-05-20 |
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| CN201310103029.8A Active CN103151475B (en) | 2013-03-28 | 2013-03-28 | Insulated sealing structure of electrode |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110970580A (en) * | 2019-11-04 | 2020-04-07 | 黄凯 | Button cell and manufacturing method thereof |
| CN113243059A (en) * | 2018-12-28 | 2021-08-10 | 松下知识产权经营株式会社 | Battery with a battery cell |
| WO2022242666A1 (en) * | 2021-05-21 | 2022-11-24 | 湖北亿纬动力有限公司 | Pole and electrode current collecting disc assembly structure, and battery |
| WO2023039771A1 (en) * | 2021-09-15 | 2023-03-23 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric apparatus, and method and device for preparing battery cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022242666A1 (en) * | 2021-05-21 | 2022-11-24 | 湖北亿纬动力有限公司 | Pole and electrode current collecting disc assembly structure, and battery |
| WO2023039771A1 (en) * | 2021-09-15 | 2023-03-23 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric apparatus, and method and device for preparing battery cell |
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| CN103151475B (en) | 2015-05-20 |
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