CN208433426U - Cap and battery for battery - Google Patents
Cap and battery for battery Download PDFInfo
- Publication number
- CN208433426U CN208433426U CN201820636032.4U CN201820636032U CN208433426U CN 208433426 U CN208433426 U CN 208433426U CN 201820636032 U CN201820636032 U CN 201820636032U CN 208433426 U CN208433426 U CN 208433426U
- Authority
- CN
- China
- Prior art keywords
- guide post
- pole
- battery
- cap
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 8
- 238000004804 winding Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/567—Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to the caps and battery for battery.The cap includes the first pole guide post, and first pole guide post successively includes upper guide post, middle ring portion and lower guide post from top to bottom；And second pole disk and dead ring, the dead ring the middle ring portion and second pole disk are linked together；Wherein groove is arranged in the end of the lower guide post, is provided with through-hole on the disk of second pole, pressure release component is provided on the through-hole.Cap provided by the utility model for battery can make the more frivolous of the production of the battery with the cap.
Description
Technical field
The utility model relates to technology field of energy storage device, more specifically, the utility model relates to the caps for battery
And battery.
Background technique
With the development of science and technology electronic product increasingly tends to minimize, and battery power supply is usually required in electronic product,
Therefore the size of battery is also designed smaller and smaller.
Battery generally includes shell, battery core and cap, and inside the shell, cap is fixedly connected battery core with shell.Cap and electricity
The pole pole piece of core is electrically connected.Battery is powered electronic equipment by cap or charges to battery core.
Battery when in use, can cause internal pressure to increase because of aging or improper use.So that shell drum
It is swollen, or even the case where explode, all there is certain harm to electronic equipment itself and user.
Utility model content
One purpose of the utility model is the new solution of the cap assemblies for battery.
First aspect according to the present utility model provides a kind of cap for battery, including the first pole guide post, institute
State the first pole guide post successively includes upper guide post, middle ring portion and lower guide post from top to bottom；And
Second pole disk and dead ring, the dead ring link together the middle ring portion and second pole disk；Wherein
The groove for being clamped a collector of battery core is arranged in the end of the lower guide post, is arranged on the disk of second pole
There is through-hole, pressure release component is provided in the through-hole.
Optionally, the position that the upper guide post is connect with the middle ring portion goes material to handle, to form broken part.
The second aspect according to the present utility model provides a kind of cap for battery, including lower guide post and second
Pole disk and the dead ring that the lower guide post and second pole disk link together；Wherein
The lower guide post is provided with recessed hole for connecting with a collector of battery core in the lower guide post, and described the
It is provided with through-hole on two pole disks, pressure release component is provided in the through-hole.
Optionally, the pressure release component is sphere, and the sphere is arranged in the through-hole, the sphere and the through-hole
Form interference fit.
Optionally, second pole disk includes planar portions and the aperture in planar portions, and from the verge of opening
Planar portions at the annular side wall portion that extends downwardly out, the annular side wall portion connect with the dead ring.
In terms of third according to the present utility model, a kind of battery is provided.The battery includes shell, battery core and above-mentioned
Cap；The battery core is located in the shell, and the cap is fixed on the opening of the shell, and the edge of the cap
It is formed and is sealed with the junction of the shell；Wherein
First pole collector of the battery core is electrically connected with the lower guide post, the second pole collector of the battery core with it is described
The bottom of shell is electrically connected.
Optionally, there is gap between the end and the housing bottom of the lower guide post, be provided with just in the gap
Temperature coefficient thermistor.
4th aspect according to the present utility model, provides a kind of battery.The battery includes shell, battery core and cap
Lid, the battery core are located in the sealed volume that the shell and cap are formed；
The cap includes the first pole guide post and the second pole disk and connects first pole guide post and second pole disk
The dead ring being connected together, second pole disk include planar portions and the aperture in planar portions, and from the aperture side
The annular side wall portion extended downwardly out at the planar portions of edge, the annular side wall portion are connect with the dead ring；
U-shaped through-hole is formed at the position corresponding with first pole guide post of the bottom of the shell, in the U-shaped through-hole
It is provided with pressure release component.
Optionally, the cap is with the shell by being welded to connect together.
Optionally, the shell includes the insulating layer and metal layer being combined with each other, and the insulating layer is located at the metal
The inside of layer.
One of the utility model has technical effect that, can make the more frivolous of the production of the battery with the cap.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiments of the present invention, and uses together with the description
In explanation the principles of the present invention.
Fig. 1 is the explosive view for the cap that specific embodiment of the utility model one provides；
Fig. 2 is the schematic diagram for the cap that specific embodiment of the utility model one provides；
Fig. 3 is the cross-sectional view for the cap that specific embodiment of the utility model one provides；
Fig. 4 is the explosive view for the cap that specific embodiment of the utility model two provides；
Fig. 5 is the schematic diagram for the cap that specific embodiment of the utility model two provides；
Fig. 6 is the explosive view for the battery that specific embodiment of the utility model three provides；
Fig. 7 is the schematic diagram for the battery that specific embodiment of the utility model three provides；
Fig. 8 is the cross-sectional view for the battery that specific embodiment of the utility model three provides；
Fig. 9 is the cross-sectional view for the battery that specific embodiment of the utility model four provides.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation
Under, the technology and equipment should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Embodiment one
The utility model provides a kind of cap for battery, includes the first pole guide post, second as shown in Figs. 1-2
Pole disk 31 and dead ring 21.Wherein, the first pole guide post successively includes upper guide post 11, middle ring portion 12 and lower guide post from top to bottom
13, dead ring 21 links together the two between middle ring portion 12 and the second pole disk 31.Optionally, first extremely just
Pole, the second extremely cathode.
The battery core of battery can be formed by winding on lower guide post 13, by the way that the shape of lower guide post 13, realization pair is arranged
Wind the shape control of the battery core formed.When guide post 13 is cylindrical under such as, battery core is also cylindrical；Lower guide post 13 is rectangle
When, battery core is also rectangle.With no restrictions to the shape of lower guide post 13, those skilled in the art can be according to need for the utility model
It is selected.
The setting of upper guide post 11 facilitates the technique for forming battery core by winding on lower guide post 13.Specifically, can lead to
It crosses and is fastenedly connected upper guide post 11 with up- coiler, make up- coiler that entire complete machine guide post be driven to be rotated, thus convenient lower guide post
The winding of battery core is formed on 13.
Wherein, upper guide post 11 can be the cylindrical body with screw thread, and upper guide post 11 and up- coiler is allow to pass through threaded frame
Structure is attached, so that convenient for loading and unloading between upper guide post 11 and up- coiler.Optionally, the upper guide post 11 can also be triangular prism
Or rectangular body, so as to being fastenedly connected between upper guide post 11 and up- coiler.Those skilled in the art are also an option that other shapes
Fastening means between shape and the upper guide post of structure 11 and upper guide post 11 and up- coiler, it is all to reach similar technology effect
Scheme, belong to the protection scope of the utility model.
Specifically, the first pole guide post and the second pole disk 31 are made of metal material, metal material can be iron, stainless steel,
Nickel, the alloy material of titanium or the above material；21 material of dead ring can be plastics, fiber, glass, ceramics or its synthetic material.
The utility model to the selections of these assembly materials with no restrictions.
Optionally, the first pole guide post and the second pole disk 31 are integrated to one by assembly or hot formed mode by dead ring 21
It rises.
The cap that the embodiments of the present invention one provide, by winding pole piece on lower guide post 13, final winding is formed
Battery core avoids minicell due to pole piece width too narrow the problem of being unable to coiling and molding, using electricity provided by the utility model
Core coiling and molding method can make the thinner and thinner battery of place's diameter.
Further, fluted 131 are arranged on lower guide post 13, groove 131 can be used in the collector for being inserted into pole piece, thus
Realize lower being electrically connected between guide post 13 and pole piece.Optionally, the width of groove 131 is more than or equal to 0.1mm.
As shown in Figs. 1-2, through-hole 311 is provided on the second pole disk 31, through-hole 311 can be used to inject electrolyte.More into
One step, it is additionally provided with pressure release component on through-hole 311, the cell internal pressure with cap provided by the utility model can be made
When excessive, internal pressure can be reduced by the pressure release component on through-hole 311 in time, play the role of pressure release, avoid battery because
Internal pressure becomes larger and generates dilatancy and the case where battery explosion even occur.
Optionally, as shown in Fig. 2, pressure release component can be the ball 312 being arranged in through-hole 311, ball 312 and through-hole 311
Between formed interference fit.When inside battery air pressure reaches preset value, ball 312 is jacked up to carry out pressure release.Optionally, it lets out
The nail in through-hole 311 can also be arranged in pressure component, when cell internal pressure is excessive, can jack up nail and carry out pressure release.
Wherein, ball 312 and nail can be made of materials such as steel, copper, and the utility model is without limitation.Those skilled in the art are also
It can choose other specific pressure release components, all schemes that can reach similar technology effect belong to the guarantor of the utility model
Protect range.
As shown in Figs. 1-2, the position that upper guide post 11 is connect with middle ring portion 12 goes material to handle, to form broken part 111.To
After the completion of battery core winding, if you do not need to upper guide post 11, can remove from broken part 111 by upper guide post 11.Optionally, described
One section of broken part 111 is in up-side down triangle, reduces the connection area with middle ring portion 12, is easy upper guide post 11 from middle ring
It is removed in portion 12.Broken part 111 can also be other structures, such as back taper, the utility model be without limitation.
As shown in figure 3, the second pole disk 31 includes planar portions 313 and the aperture in planar portions 313, and from aperture
The annular side wall portion 314 extended in the planar portions 313 at edge to cap downside, the length for the annular side wall portion 314 extended
It is identical or close as the thickness of dead ring 21.Obviously, thickness of the second pole disk 31 at planar portions 313 is smaller, to increase
Space in battery improves the energy density of battery unit volume, while can make have cap provided by the utility model
Battery is more frivolous.
Embodiment two
The utility model additionally provides a kind of cap for battery, includes lower guide post 13 ' and as shown in Figure 3-4
Two pole disks 31 ', and the dead ring 21 ' that lower guide post 13 ' and the second pole disk 31 ' are linked together.
Lower guide post 13 ' with a collector of battery core for connecting.It is provided with recessed hole 131 ' in lower guide post 13 ', is recessed
The opening in hole 131 ' is towards the upside of cap.The setting of recessed hole 131 ' facilitates the winding of battery core on lower guide post 13 '.It can be with
By the way that connector is arranged, one end of connector is set to be inserted into recessed hole 131 ', the other end is fastenedly connected with up- coiler, to realize
Up- coiler drives lower guide post 13 ' to carry out the purpose of rotation winding battery core, while also achieving cap and quickly connecting with up- coiler
With separate.
Optionally, it is provided with internal screw thread on 131 ' inner sidewall of recessed hole, connector is connected through a screw thread with recessed hole 131 '.
Optionally, recessed hole 131 ' can also be interior hex shape, choose connector corresponding with 131 ' structure of recessed hole, Ji Keshi
Connection between existing connector and recessed hole 131 ', and the handling between connector and recessed hole 131 ' are fast.This is practical
With no restrictions, all schemes that can reach similar technology effect belong to practical the novel concrete mechanism to recessed hole 131 '
Novel protection scope.
Further, through-hole 311 ' is provided on the second pole disk 31 ', through-hole 311 ' can be used to inject electrolyte.More into
One step, pressure release component is additionally provided on through-hole 311 '.Its specific structure and component are consistent with the scheme of embodiment one, and have
Same technical effect, details are not described herein.
Further, the depth of recessed hole 131 ' is less than the length of lower guide post 13 ', sets in the other end of lower guide post 13 '
Groove is set, groove can be used in the collector for being inserted into pole piece, to realize lower being electrically connected between guide post and pole piece.
Preferably, the second pole disk 31 ' of the cap that the utility model specific embodiment two provides also has in embodiment one
Planar portions and annular side wall portion, specific structure and technical effect are identical as embodiment one kind, and details are not described herein.
Embodiment three
The utility model additionally provides a kind of battery, includes shell 40, battery core 43 and embodiment one or embodiment two
The cap of offer, battery core 43 are located in shell 40, and cap is fixed on the opening of shell 40, and the edge of cap and shell 40
Junction forms sealing, is in battery core 43 in the cavity of a sealing.First pole pole piece 41 of battery core 43 and lower guide post 13,
13 ' electrical connections, the second pole pole piece 42 are electrically connected with the bottom of shell 40.
After cap is assembled on shell 40, between certain distance between lower guide post 13,13 ' and the bottom of shell 40
Gap, lower guide post 13,13 ' will not be contacted with the bottom of shell 40, avoid battery short circuit.
Wherein, it is provided with upper insulation plate 51 between battery core 43 and cap, is provided between battery core 43 and the bottom of shell 40
Lower insulation plate 51.
Optionally, shell 40 includes the insulating layer and metal layer being combined with each other, and insulating layer is located at the internal layer of metal layer.Absolutely
The setting of edge layer, the insulating layer for simplifying the assembly technology of battery relative to isolated insulating layer and shell, and being combined with each other
It can be made with metal layer thickness thinner, save the intracorporal space of shell of battery, improve the energy of battery unit volume
Density.
As illustrated in figs. 5-7, it is provided with posive temperature coefficient thermistor between lower guide post 13 and the bottom of shell 40, works as electricity
When short circuit temperature in pond increases, the resistance value of thermistor increases, so that the impedance of inside battery increases, plays protection to battery and makees
With.
Further, the collector 411 of the first pole pole piece 41 is located in the groove 131 of lower guide post 13, the first pole pole made
Piece 41 is electrically connected with lower guide post 13.Meanwhile collector does not need to occupy axial space additional outside lower guide post 13, increases electricity
The volume of core improves the capacity of battery.
Specifically, the cap that the embodiments of the present invention one or embodiment two provide is connected with shell 40 by welding
It is connected together.Optionally, welding manner is laser welding.The sealing between cap and shell 40 is carried out using welding machine technology to connect
It connects, avoids traditional slot rolling sealing to the additional occupancy in inside battery space, improve the energy density of battery unit volume,
Make battery more frivolous.
Example IV
The utility model additionally provides a kind of battery, which includes shell 40 ", battery core 43 " and cap 31 ", battery core
43 " are located in the sealed volume that shell 40 " and cap 31 " are formed.
As shown in figure 9, cap 31 " includes the first pole guide post 13 " and the second pole disk 31 ", and by the first pole guide post 13 "
With the dead ring 21 " to link together with the second pole disk 31 ".Wherein, the second pole disk 31 " includes planar portions 313 " and is located at flat
Aperture on face 313 ", and the annular side wall portion extended from the planar portions 313 " of verge of opening to cap downside
314 ", the length for the annular side wall portion 314 " extended is identical or close as the thickness of dead ring 21 ".Obviously, the second pole disk 31 "
Thickness at planar portions 313 " can make thinner, to increase the space in battery, improve battery unit volume
Energy density, while can make have the battery of cap provided by the utility model more frivolous.
Further, U type through-hole 311 ", U are formed at the position corresponding with the first pole guide post 13 " of the bottom of shell 40 "
Pressure release component is provided in type through-hole 311 ".
Optionally, the specific structure of the first pole guide post 13 " can be the first pole that the utility model specific embodiment provides
Guide post, or to implement the two lower guide posts 13 ' provided.The utility model to the specific structure of the first pole guide post 13 " with no restrictions,
All schemes that can reach similar technology effect, belong to the protection scope of the utility model.
Optionally, as shown in figure 9, pressure release component can be ball 312 " of the setting in through-hole 311 ", ball 312 " and through-hole
Interference fit is formed between 311 ".When inside battery air pressure reaches preset value, ball 312 " is jacked up to carry out pressure release.It is optional
The nail in through-hole 311 " can also be arranged in ground, pressure release component, when cell internal pressure is excessive, can jack up nail progress
Pressure release.Wherein, ball 312 " and nail can be made of materials such as steel, copper, and the utility model is without limitation.Art technology
Personnel are also an option that other specific pressure release components, and it is practical new to belong to this for all schemes that can reach similar technology effect
The protection scope of type.
Optionally, cap 31 " with shell 40 " by being welded together.Optionally, welding manner is Laser Welding
It connects.Sealed connection between cap 31 " and shell 40 " is carried out using welding machine technology, traditional slot rolling is avoided and seals to battery
The additional occupancy of inner space, improves the energy density of battery unit volume, makes battery more frivolous.
Optionally, shell 40 " includes the insulating layer and metal layer being combined with each other, and insulating layer is located at the internal layer of metal layer.
The setting of insulating layer, the insulation for simplifying the assembly technology of battery relative to isolated insulating layer and shell, and being combined with each other
Layer and metal layer thickness can make thinner, save the intracorporal space of shell of battery, can further promote battery unit
The energy density of volume.
Although being described in detail by some specific embodiments of the example to the utility model, this field
It is to be understood by the skilled artisans that above example merely to be illustrated, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case where, to above embodiments
It modifies.The scope of the utility model is defined by the following claims.
Claims (10)
1. a kind of cap for battery, which is characterized in that including the first pole guide post, first pole guide post is from top to bottom successively
It include upper guide post, middle ring portion and lower guide post；And
Second pole disk and dead ring, the dead ring link together the middle ring portion and second pole disk；Wherein
The groove for being clamped a collector of battery core is arranged in the end of the lower guide post, is provided on the disk of second pole logical
Hole is provided with pressure release component in the through-hole.
2. cap according to claim 1, which is characterized in that the position that the upper guide post is connect with the middle ring portion is gone
Material processing, to form broken part.
3. a kind of cap for battery, which is characterized in that including lower guide post and the second pole disk and by the lower guide post and institute
State the dead ring that the second pole disk links together；Wherein
The lower guide post is provided with recessed hole, second pole for connecting with a collector of battery core in the lower guide post
It is provided with through-hole on disk, pressure release component is provided in the through-hole.
4. cap according to claim 1 or 3, which is characterized in that the pressure release component is sphere, and the sphere setting exists
In the through-hole, the sphere and the through-hole are formed and are interference fitted.
5. cap according to claim 1 or 3, which is characterized in that second pole disk include planar portions and be located at plane
Aperture in portion, and the annular side wall portion extended downwardly out from the planar portions of the verge of opening, the annular side wall portion
It is connect with the dead ring.
6. a kind of battery, which is characterized in that including cap described in shell, battery core and claim 1-5 any one；It is described
Battery core is located in the shell, and the cap is fixed on the opening of the shell, and the edge of the cap and the shell
Junction formed sealing；Wherein
First pole collector of the battery core is electrically connected with the lower guide post, the second pole collector and the shell of the battery core
Bottom electrical connection.
7. battery according to claim 6, which is characterized in that have between the end and the housing bottom of the lower guide post
There is gap, is provided with posive temperature coefficient thermistor in the gap.
8. a kind of battery, which is characterized in that including shell, battery core and cap, the battery core is located at the shell and cap cover shape
At sealed volume in；
The cap includes the first pole guide post and the second pole disk and is connected to first pole guide post and second pole disk
Dead ring together, second pole disk include planar portions and the aperture in planar portions, and from the verge of opening
The annular side wall portion extended downwardly out at planar portions, the annular side wall portion are connect with the dead ring；
U-shaped through-hole, setting in the U-shaped through-hole are formed at the position corresponding with first pole guide post of the bottom of the shell
There is pressure release component.
9. the battery according to claim 6 or 8, which is characterized in that the cap and the shell are by being welded to connect one
It rises.
10. the battery according to claim 6 or 8, which is characterized in that the shell include the insulating layer that is combined with each other and
Metal layer, the insulating layer are located at the inside of the metal layer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820636032.4U CN208433426U (en) | 2018-04-27 | 2018-04-27 | Cap and battery for battery |
| PCT/CN2018/119007 WO2019205640A1 (en) | 2018-04-27 | 2018-12-03 | Cap for battery and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820636032.4U CN208433426U (en) | 2018-04-27 | 2018-04-27 | Cap and battery for battery |
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| Publication Number | Publication Date |
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| CN208433426U true CN208433426U (en) | 2019-01-25 |
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|---|---|---|---|
| CN201820636032.4U Active CN208433426U (en) | 2018-04-27 | 2018-04-27 | Cap and battery for battery |
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| Country | Link |
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| CN (1) | CN208433426U (en) |
| WO (1) | WO2019205640A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111989800A (en) * | 2020-07-14 | 2020-11-24 | 宁德新能源科技有限公司 | Battery and electric device with same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021155560A1 (en) * | 2020-02-07 | 2021-08-12 | 宁德新能源科技有限公司 | Battery and powered apparatus provided with battery |
| CN113848218B (en) * | 2021-09-22 | 2023-11-14 | 南方科技大学 | In-situ test die of battery cell and method for neutron testing of battery cell |
| CN114628854B (en) * | 2022-03-28 | 2024-01-30 | 远景动力技术(江苏)有限公司 | Cylindrical battery and method for manufacturing the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201069794Y (en) * | 2007-08-21 | 2008-06-04 | 董兴国 | A secondary lithium ion battery component with secure valve |
| JP2015170718A (en) * | 2014-03-06 | 2015-09-28 | 日東電工株式会社 | Terminal and breathable container |
| CN206040813U (en) * | 2016-09-06 | 2017-03-22 | 河北银隆新能源有限公司 | Negative pole subassembly and cylinder battery |
| CN107658395B (en) * | 2017-09-15 | 2021-02-05 | 惠州亿纬锂能股份有限公司 | Lithium ion battery |
-
2018
- 2018-04-27 CN CN201820636032.4U patent/CN208433426U/en active Active
- 2018-12-03 WO PCT/CN2018/119007 patent/WO2019205640A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111989800A (en) * | 2020-07-14 | 2020-11-24 | 宁德新能源科技有限公司 | Battery and electric device with same |
| CN111989800B (en) * | 2020-07-14 | 2023-12-15 | 宁德新能源科技有限公司 | Battery and electricity utilization device with same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019205640A1 (en) | 2019-10-31 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Cap for battery and battery Effective date of registration: 20211021 Granted publication date: 20190125 Pledgee: China Co. truction Bank Corp Huizhou branch Pledgor: GUANGDONG MICROELECTRONICS NEW ENERGY Co.,Ltd. Registration number: Y2021980011133 |