CN110534799A - Battery and battery cover plate assembly - Google Patents
Battery and battery cover plate assembly Download PDFInfo
- Publication number
- CN110534799A CN110534799A CN201910835466.6A CN201910835466A CN110534799A CN 110534799 A CN110534799 A CN 110534799A CN 201910835466 A CN201910835466 A CN 201910835466A CN 110534799 A CN110534799 A CN 110534799A
- Authority
- CN
- China
- Prior art keywords
- cover board
- battery
- liquid injection
- injection hole
- battery core
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 claims abstract description 75
- 239000007924 injection Substances 0.000 claims abstract description 75
- 239000007788 liquid Substances 0.000 claims abstract description 69
- 239000003792 electrolyte Substances 0.000 claims abstract description 38
- 238000004804 winding Methods 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims description 19
- 230000007704 transition Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 239000012466 permeate Substances 0.000 abstract 2
- 239000012530 fluid Substances 0.000 description 11
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M50/148—Lids or covers characterised by their shape
-
- 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
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
-
- 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)
- Materials Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention relates to a battery and a battery cover plate assembly, wherein the battery cover plate assembly comprises a cover plate, the cover plate extends along the direction parallel to the winding axis of a battery core, a liquid injection hole is formed in the cover plate, and a dropping path of electrolyte in the liquid injection hole is positioned on the side end face of the battery core on the winding axis. Wherein, after the base material coiled around the axis of winding and formed electric core, the side end face that electric core was located on the winding axis had the gap between the multilayer base material, and when annotating the side end face setting that the liquid hole corresponds, when annotating electrolyte and dripping under the action of gravity in the liquid hole, just can pass through the side end face and permeate electric core from the gap of side end face, and then permeate positive pole layer and the negative pole layer of diaphragm both sides from the side of diaphragm, and electrolyte can not drip from electric core top and receive blockking of diaphragm, improves the notes liquid efficiency of electrolyte.
Description
Technical field
The present invention relates to battery technology fields, more particularly to battery and battery cover board assembly.
Background technique
Lithium ion battery is a kind of secondary cell (rechargeable battery), it relies primarily on lithium ion and moves between a positive electrode and a negative electrode
It moves and carrys out work.Due to lithium ion battery have high-energy-density, long circulation life, memory-less effect, safety nuisance free and quickly fill,
The advantages that electric discharge, is widely used at present in the electronic devices such as video camera, laptop, and gradually to electric bicycle,
Application range is expanded in the fields such as electric car.
Generally, lithium ion battery includes shell, cover plate assembly, battery core and electrolyte, and shell and cover plate assembly form one
Sealing space, battery core and electrolyte are contained in the sealing space.Cover plate assembly includes cover board, offers liquid injection hole on cover board,
Electrolyte is injected into shell by liquid injection hole.But the full tab battery of traditional aluminum-shell battery, especially aluminum hull, after fluid injection
Static very long a period of time is needed, can just be made inside electrolyte infiltration to battery core, fluid injection efficiency is lower.
Summary of the invention
Based on this, it is necessary to provide a kind of higher battery cover board assembly of fluid injection efficiency.
A kind of battery cover board assembly, including cover board, the cover board extend along the direction of parallel electric core winding axis, and described
Liquid injection hole is offered on cover board, battery core described in the drippage path approach of electrolyte is located on the winding axis in the liquid injection hole
Side end face.
In above-mentioned battery cover board assembly, liquid injection hole is offered on cover board, the drippage path approach electricity of electrolyte in liquid injection hole
Core is located at the side end face on winding axis.Wherein, after substrate is wound and to form battery core around winding axis, battery core is located on winding axis
Side end face there is the gap between multi-layer substrate, when liquid injection hole correspond to side end face setting, electrolyte is in gravity work in liquid injection hole
When with lower drippage, battery core will be penetrated by side end face and from the gap of side end face, and then penetrate into diaphragm from the side of diaphragm
In the anode layer and negative electrode layer of two sides, electrolyte will not drip and the blocking by diaphragm at the top of battery core, improve electrolyte
Fluid injection efficiency.
The liquid injection hole includes two in one of the embodiments, and two liquid injection holes respectively correspond the battery core
Two opposite side end faces are arranged on the winding axis.
Further include in one of the embodiments, be located at the cover board extending direction opposite sides Positive Poles and
Negative pole；
The liquid injection hole includes the first liquid injection hole and the second liquid injection hole, in first liquid injection hole and second liquid injection hole
One of, positioned at the Positive Poles backwards to the side of the negative pole, first note on the cover board extending direction
The other of fluid apertures and second liquid injection hole, be located at the negative pole on the cover board extending direction backwards to it is described just
The side of pole pole.
It in one of the embodiments, further include being connect respectively with the Positive Poles and the negative pole and being located at institute
State the positive cover plate electrode ear and negative cover tab of cover board the same side；
The positive cover plate electrode ear and the negative cover tab extend out in the direction away from each other respectively, the positive cover
Maximum distance between plate electrode ear and the negative cover tab, greater than between the Positive Poles and the negative pole away from
From.
The positive cover plate electrode ear includes that the first linkage section interconnected and first extend out in one of the embodiments,
Section, the negative cover tab includes the second linkage section interconnected and second extends out section, first linkage section and described
Second linkage section is connect with the Positive Poles and the negative pole respectively；
On the direction that the parallel cover board extends, described first extends out relatively described first linkage section of section to far from described
The direction of negative pole extends out, and described second extends out relatively described second linkage section of section to outside the direction far from the Positive Poles
Expand.
The positive cover plate electrode ear further includes First Transition section in one of the embodiments, the negative cover tab
It further include the second changeover portion；
The First Transition section is connected to first linkage section and described first along the direction that the parallel cover board extends
It extends out between section, second changeover portion is connected to second linkage section and described the along the direction that the parallel cover board extends
Two extend out between section.
Described first extend out projection and at least partly described first note of the section to the cover board in one of the embodiments,
The overlapping of fluid apertures region, described second extends out projection and at least partly second liquid injection hole location of the section to the cover board
Domain overlapping.
Overcurrent fusing is provided on the positive cover plate electrode ear or the negative cover tab in one of the embodiments,
Structure.
The present invention also provides a kind of batteries, including shell, battery core, electrolyte and the claims 1-8 any one institute
The battery cover board assembly stated, the battery cover board assembly, which is covered on the shell, forms accommodating space, the battery core and described
Electrolyte is set in the accommodating space, and the battery core adsorbs the electrolyte.
In one of the embodiments, the battery core by substrate around the wireline reel coil of wire around and flatten after formed, it is described
The side end face that battery core is located on the winding axis is that the side protrusion of central core substrate, the side of outer layer substrate gradually inside contract
The inclined surface of formation.
In one of the embodiments, the battery cover board assembly further include pole on the cover board and with institute
It states pole to connect and be located at the cover board close to the cover board tab of the battery core side, the battery core includes battery core body and along institute
The winding axis direction for stating battery core protrudes the cell polar ear that is set in the battery core body, the cell polar ear with it is described
Cover board tab welding.
Detailed description of the invention
Fig. 1 is the structural schematic diagram at a visual angle of battery cover board in one embodiment of the invention；
Fig. 2 is the structural schematic diagram at another visual angle of battery cover board assembly shown in Fig. 1.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figs. 1-2, in one embodiment of the invention, a kind of battery, including shell, battery core 210, electrolyte and electricity are provided
Pond cover plate assembly 100, battery cover board assembly 100, which is covered on shell, forms accommodating space, and battery core 210 and electrolyte are set to receiving
In space, and battery core 210 adsorbs electrolyte.Battery cover board assembly 100 is electrically connected with battery core 210, forms positive and negative electrode, electrolyte
In lithium ion moved between positive and negative electrode, realize charging/discharging function.
Shell is formed with the accommodating chamber with opening, is packed into accommodating chamber from opening by battery core 210, and by battery cover board assembly
100 are covered on opening, closing opening.Optionally, shell is aluminum hull.
Battery core 210 is winding battery core, and in manufacturing process then substrate is flattened and is made around winding axis a winding.Wherein, base
Material includes anode layer, negative electrode layer and diaphragm, and diaphragm is set between anode layer and negative electrode layer, prevents positive and negative anodes short-circuit.Further
Ground, the battery core 210 that substrate is formed after winding include battery core body 212 and cell polar ear 214, and cell polar ear 214 is along battery core 210
The winding direction axis a protrusion is set in battery core body 212.Optionally, cell polar ear 214 is Quan Jier.
Battery cover board assembly 100 includes cover board 10, pole 20 and cover board tab, and pole 20 is set on cover board 10, cover board pole
Ear connect with pole 20 and is located at cover board 10 close to the side of battery core 210, and welds with cell polar ear 214, will be in battery core 210
Positive and negative anodes layer guide to pole 20.
Specifically, pole 20 include Positive Poles 21 and negative pole 23, cover board tab include respectively with Positive Poles 21
The positive cover plate electrode ear 41 and negative cover tab 42 connected with negative pole 23, cell polar ear 214 include along axis a points of winding
Wei Yu not be two of 212 both ends of battery core body, two cell polar ears 214 respectively with positive cover plate electrode ear 41 and negative electrode tab
Welding, realize anode layer and Positive Poles 21 in battery core body 212 be electrically connected and battery core body 212 in negative electrode layer and cathode
The electrical connection of pole 23.
Inventor is the study found that in the substrate of winding battery core 210, and diaphragm insulation set is between anode layer and negative electrode layer.
If injecting electrolyte from the circumferential direction that battery core 210 is wound, electrolyte after the obstruction of diaphragm by being difficult to penetrate into battery core 210
The infiltration efficiency in portion, electrolyte is lower.
To solve the above-mentioned problems, the present invention provides a kind of battery cover board assembly 100.In battery cover board assembly 100, cover board
10 extend along the direction of parallel battery core 210 winding axis a, and liquid injection hole 11 is offered on cover board 10, electrolyte in liquid injection hole 11
Drippage path approach battery core 210 be located at winding axis a on side end face 211.Wherein, substrate winds to be formed around winding axis a
After battery core 210, the side end face 211 that battery core 210 is located on winding axis a has the gap between multi-layer substrate, when liquid injection hole 11
Corresponding side end face 211 is arranged, will be by side end face 211 and from side when electrolyte drips under the effect of gravity in liquid injection hole 11
Battery core 210 is penetrated into the gap of end face 211, and then from the anode layer and negative electrode layer that the side of diaphragm penetrates into diaphragm two sides, electricity
Solution liquid will not drip and the blocking by diaphragm at the top of battery core 210, improve the fluid injection efficiency of electrolyte.
It should be noted that substrate winding flatten after the side end face 211 that is formed, centered on layer substrate side protrusion, outside
The side of layer substrate gradually inside contracts the inclined surface to be formed, and can contact every layer of base of winding after such electrolyte contacts to inclined-plane
Material, effect of impregnation are preferable.
Further, liquid injection hole 11 includes two, and two liquid injection holes 11 respectively correspond battery core 210 and are located on winding axis a
Opposite two side end faces 211 setting.When substrate is around winding axis a winding, it will form opposite two being located on winding axis a
A side end face 211, corresponding two side end faces 211 are arranged two liquid injection holes 11, on the one hand by increasing the quantity of liquid injection hole 11, mention
High injection efficiency；On the other hand, the electrolyte in two liquid injection holes 11 penetrates into simultaneously from the both ends of battery core 210, can more fill
Divide and equably battery core 210 is soaked, liquid injection and humidity effect is preferable.
Specifically, Positive Poles 21 and negative pole 23 are located at the opposite sides of 10 extending direction of cover board, liquid injection hole
11 include the first liquid injection hole 13 and the second liquid injection hole 15, and one of the first liquid injection hole 13 and the second liquid injection hole 15 are located at anode
Pole 21 is another in the side of negative pole 23, the first liquid injection hole 13 and the second liquid injection hole 15 on 10 extending direction of cover board
One, positioned at negative pole 23 backwards to the side of Positive Poles 21 on 10 extending direction of cover board.Wherein, battery core 210 is connected to
Between Positive Poles 21 and negative pole 23, and the first liquid injection hole 13 and the second liquid injection hole 15 are not opened in Positive Poles 21 and bear
Between pole pole 23, it is located at except the first pole 20 and the second pole 20, so makes the first liquid injection hole 13 and the second liquid injection hole 15
The circumferential top of battery core 210 will not be located at, and the side end face 211 that can be wound on the direction axis a with battery core 210 is corresponding.
Inventor also found after study, in the case where 10 length of cover board is constant, if by the first liquid injection hole 13 and second
Liquid injection hole 15 is respectively arranged at except Positive Poles 21 and negative pole 23, is needed Positive Poles 21 and negative pole 23 to phase
Mutually close direction is mobile, just can concede for the first liquid injection hole 13 and the second liquid injection hole 15 on cover board 10 and open up space.But
It is that the distance between Positive Poles 21 and negative pole 23 will affect the width for the battery core 210 being connected electrically, works as Positive Poles
When the distance between 21 and negative pole 23 become smaller, battery core 210 is also required to do accordingly narrow, can just be connected to 21 He of Positive Poles
Between negative pole 23.Therefore, it in the size constancy of battery case, is changed to from when 210 211 fluid injection of side end face of battery core, Wu Fabao
The width for demonstrate,proving battery core 210 is constant.
In one embodiment of the invention, in order to solve the above-mentioned technical problem, make positive cover plate electrode ear 41 and negative cover tab
42 extend out in the direction away from each other respectively, and the maximum distance between positive cover plate electrode ear 41 and negative cover tab 42, greatly
In the distance between Positive Poles 21 and negative pole 23.That is, increasing the positive cover plate electrode ear 41 connecting with battery core 210
Width between negative cover tab 42, battery core 210 can keep width unchangeably, be connected to two extend out after positive cover board
Between tab 41 and negative cover tab 42.In this way, in the case where the size of shell, cover board 10 and battery core 210 is all constant, also
While improving fluid injection efficiency, it can guarantee that other performances of battery are unaffected from 210 side end face of battery core, 211 fluid injection.
Specifically, positive cover plate electrode ear 41 includes that the first linkage section 43 interconnected and first extends out section 45, negative cover
Plate electrode ear 42 includes that the second linkage section 44 interconnected and second extends out section 46, and the first linkage section 43 and the second linkage section 44 divide
It is not connect with Positive Poles 21 and negative pole 23.Meanwhile on the direction that parallel cover board 10 extends, first extends out section 45 relatively
For first linkage section 43 to reversely extending out far from negative lug, second extends out section 46 with respect to the second linkage section 44 to far from positive pole
The direction of ear extends out.First extends out section 45 extends out with respect to the first linkage section 43, and second extends out section 46 with respect to outside the second linkage section 44
Expand, first extends out section 45 and the second spacing for extending out between section 46 is greater than, between the first linkage section 43 and the second linkage section 44
Spacing can extend out section 45 and second first and extend out and connect the battery core 210 of original size between section 46,210 two sides of battery core
Two cell polar ears 214 are stacked to be welded in first and extend out section 45 and second respectively and be extended out in section 46, guarantee 210 width of battery core not by
It influences.
Further, positive cover plate electrode ear 41 further includes First Transition section 47, and negative cover tab 42 further includes the second mistake
Cross section 48, First Transition section 47 along the direction that parallel cover board 10 extends be connected to the first linkage section 43 and first extend out section 45 it
Between, section 45 is extended out by the first linkage section 43 of 47 connecting staggered of First Transition section and first；Second changeover portion 48 is along parallel lid
The direction that plate 10 extends is connected to the second linkage section 44 and second and extends out between section 46, passes through 48 connecting staggered of the second changeover portion
Second linkage section 44 and the second changeover portion 48.
Optionally, it is provided with overcurrent fusing structure 49 on positive cover plate electrode ear 41 or negative cover tab 42, when electric current mistake
When big, overcurrent fusing structure 49 is disconnected, and prevents inside battery from generating overload current.
In some embodiments, first projection and at least partly first liquid injection hole 13 location of the section 45 to cover board 10 are extended out
Domain overlapping, after such first extends out the stacking welding of cell polar ear 214 of section 45 and 210 side of battery core, the first liquid injection hole 13
It is corresponding with a side end face 211 of battery core 210, electrolyte is penetrated into from the side end face 211 of 210 side of battery core；Second extend out section 46 to
The projection of cover board 10 is Chong Die at least partly 15 region of the second liquid injection hole, and such second extends out section 46 and battery core 210 is another
After the cell polar ear 214 of side stacks welding, the second liquid injection hole 15 can be corresponding with another side end face 211 of battery core 210, from battery core
Electrolyte is penetrated into the side end face 211 of 210 other sides.
In one embodiment of the invention, a kind of above-mentioned battery cover board assembly 100, including cover board 10 are provided.Cover board 10 is along parallel
The direction that battery core 210 winds axis a extends, and liquid injection hole 11 is offered on cover board 10, the drippage road of electrolyte in liquid injection hole 11
Diameter approach battery core 210 is located at the side end face 211 on winding axis a.Wherein, substrate winds to form battery core 210 around winding axis a
Afterwards, the side end face 211 that battery core 210 is located on winding axis a has the gap between multi-layer substrate, when the corresponding side of liquid injection hole 11
Face 211 is arranged, will be by side end face 211 and from side end face 211 when electrolyte drips under the effect of gravity in liquid injection hole 11
Battery core 210 is penetrated into gap, and then from the anode layer and negative electrode layer that the side of diaphragm penetrates into diaphragm two sides, electrolyte will not be from
It is dripped and the blocking by diaphragm at the top of battery core 210, improves the fluid injection efficiency of electrolyte.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (11)
1. a kind of battery cover board assembly, which is characterized in that including cover board (10), the cover board (10) is rolled up along parallel battery core (210)
Extend around the direction of axis (a), and offers liquid injection hole (11) on the cover board (10), electrolyte in the liquid injection hole (11)
Drip the side end face (211) that battery core (210) described in the approach of path is located on winding axis (a).
2. battery cover board assembly according to claim 1, which is characterized in that the liquid injection hole (11) includes two, two
The liquid injection hole (11) respectively corresponds the battery core (210) and is located at two side end faces opposite on winding axis (a)
(211) it is arranged.
3. battery cover board assembly according to claim 1 or 2, which is characterized in that further include being located at the cover board
(10) Positive Poles (21) and negative pole (23) of extending direction opposite sides；
The liquid injection hole (11) includes the first liquid injection hole (13) and the second liquid injection hole (15), first liquid injection hole (13) and described
One of second liquid injection hole (15) is located at the Positive Poles (21) on the cover board (10) extending direction backwards to described negative
The side of pole pole (23), the other of first liquid injection hole (13) and second liquid injection hole (15) are located at described negative
Pole pole (23) is on the cover board (10) extending direction backwards to the side of the Positive Poles (21).
4. battery cover board assembly according to claim 3, which is characterized in that further include respectively with the Positive Poles (21)
The positive cover plate electrode ear (41) and negative cover plate electrode of the cover board (10) the same side are connected and are located at the negative pole (23)
Ear (42)；
The positive cover plate electrode ear (41) and the negative cover tab (42) extend out in the direction away from each other respectively, it is described just
Maximum distance between polar cap plate electrode ear (41) and the negative cover tab (42), be greater than the Positive Poles (21) with it is described
The distance between negative pole (23).
5. battery cover board assembly according to claim 4, which is characterized in that the positive cover plate electrode ear (41) includes mutual
The first linkage section (43) and first of connection extend out section (45), and the negative cover tab (42) includes the second company interconnected
Section (44) and second is connect to extend out section (46), first linkage section (43) and second linkage section (44) respectively with the anode
Pole (21) and the negative pole (23) connection；
On the direction that the parallel cover board (10) extends, described first extend out relatively described first linkage section (43) of section (45) to
It is extended out far from the direction of the negative pole (23), described second extends out relatively described second linkage section (44) of section (46) to separate
The direction of the Positive Poles (21) extends out.
6. battery cover board assembly according to claim 5, which is characterized in that the positive cover plate electrode ear (41) further includes
One changeover portion (47), the negative cover tab (42) further include the second changeover portion (48)；
The First Transition section (47) along the direction that the parallel cover board (10) extends be connected to first linkage section (43) with
Described first extends out between section (45), and second changeover portion (48) is connected to institute along the direction that the parallel cover board (10) extends
The second linkage section (44) and described second is stated to extend out between section (46).
7. battery cover board assembly according to claim 5, which is characterized in that described first extends out section (45) Xiang Suoshu cover board
(10) projection is Chong Die at least partly described first liquid injection hole (13) region, and described second extends out section (46) to the lid
The projection of plate (10) is Chong Die at least partly described second liquid injection hole (15) region.
8. battery cover board assembly according to claim 5, which is characterized in that the positive cover plate electrode ear (41) is described negative
Overcurrent fusing structure (49) are provided on polar cap plate electrode ear (42).
9. a kind of battery, which is characterized in that including shell, battery core (210), electrolyte and the claims 1-8 any one
The battery cover board assembly (100), the battery cover board assembly (100), which is covered on the shell, forms accommodating space, institute
It states battery core (210) and the electrolyte is set in the accommodating space, and the battery core (210) adsorbs the electrolyte.
10. battery according to claim 9, which is characterized in that the battery core (210) is by substrate around the winding axis
(a) it winds and is formed after flattening, the side end face (210) that the battery core (210) is located on winding axis (a) is central core
The side protrusion of substrate, the side of outer layer substrate gradually inside contract the inclined surface to be formed.
11. battery according to claim 9, which is characterized in that the battery cover board assembly (100) further includes set on described
It pole (20) on cover board (10) and is connect with the pole (20) and is located at the cover board (10) close to the battery core (210)
The cover board tab of side, the battery core (210) include battery core body (212) and the winding axis along the battery core (210)
(a) cell polar ear (214) being set on the battery core body (212), the cell polar ear (214) and the lid are protruded in direction
Plate tab welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910835466.6A CN110534799B (en) | 2019-09-05 | 2019-09-05 | Battery and battery cover plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111599951A (en) * | 2020-06-23 | 2020-08-28 | 苏州凌威新能源科技有限公司 | Battery cover plate assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060097986A (en) * | 2005-03-08 | 2006-09-18 | 삼성에스디아이 주식회사 | Secondary battery |
| WO2012023434A1 (en) * | 2010-08-17 | 2012-02-23 | 株式会社Ｇｓユアサ | Power storage element manufacturing method and power storage element |
| JP2012059492A (en) * | 2010-09-08 | 2012-03-22 | Gs Yuasa Corp | Power storage device |
| JP2013168239A (en) * | 2012-02-14 | 2013-08-29 | Hitachi Vehicle Energy Ltd | Secondary battery |
| JP2014170754A (en) * | 2014-04-28 | 2014-09-18 | Gs Yuasa Corp | Power storage device |
| JP2015135736A (en) * | 2014-01-16 | 2015-07-27 | 株式会社Ｇｓユアサ | Electric storage element |
| CN207800664U (en) * | 2018-02-01 | 2018-08-31 | 宁德时代新能源科技股份有限公司 | Cap assembly and power battery |
| CN208521983U (en) * | 2018-07-02 | 2019-02-19 | 中山市润烨新能源科技有限公司 | A kind of power battery lamina tecti |
-
2019
- 2019-09-05 CN CN201910835466.6A patent/CN110534799B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060097986A (en) * | 2005-03-08 | 2006-09-18 | 삼성에스디아이 주식회사 | Secondary battery |
| WO2012023434A1 (en) * | 2010-08-17 | 2012-02-23 | 株式会社Ｇｓユアサ | Power storage element manufacturing method and power storage element |
| JP2012059492A (en) * | 2010-09-08 | 2012-03-22 | Gs Yuasa Corp | Power storage device |
| JP2013168239A (en) * | 2012-02-14 | 2013-08-29 | Hitachi Vehicle Energy Ltd | Secondary battery |
| JP2015135736A (en) * | 2014-01-16 | 2015-07-27 | 株式会社Ｇｓユアサ | Electric storage element |
| JP2014170754A (en) * | 2014-04-28 | 2014-09-18 | Gs Yuasa Corp | Power storage device |
| CN207800664U (en) * | 2018-02-01 | 2018-08-31 | 宁德时代新能源科技股份有限公司 | Cap assembly and power battery |
| CN208521983U (en) * | 2018-07-02 | 2019-02-19 | 中山市润烨新能源科技有限公司 | A kind of power battery lamina tecti |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111599951A (en) * | 2020-06-23 | 2020-08-28 | 苏州凌威新能源科技有限公司 | Battery cover plate assembly |
| CN111599951B (en) * | 2020-06-23 | 2024-02-20 | 湖南领湃达志科技股份有限公司 | Battery cover plate assembly |
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| CN110534799B (en) | 2020-12-15 |
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