CN207947342U - Negative pole currect collecting component and the cylindrical battery for configuring the component - Google Patents
Negative pole currect collecting component and the cylindrical battery for configuring the component Download PDFInfo
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- CN207947342U CN207947342U CN201820341015.8U CN201820341015U CN207947342U CN 207947342 U CN207947342 U CN 207947342U CN 201820341015 U CN201820341015 U CN 201820341015U CN 207947342 U CN207947342 U CN 207947342U
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- negative pole
- currect collecting
- pole currect
- negative
- collecting plate
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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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- 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
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Abstract
This application discloses the cylindrical batteries of a kind of negative pole currect collecting component of cylindrical battery and the configuration component, negative pole currect collecting component includes negative pole currect collecting plate and negative terminal, the thickness of the negative pole currect collecting plate and the negative terminal is arranged in the same direction, that side of the negative pole currect collecting plate towards the negative terminal forms the protrusion outwardly protruded along the negative pole currect collecting plate thickness direction, that side of the negative terminal towards the negative pole currect collecting plate, which is formed, to be recessed inwardly along the negative terminal thickness direction, and the compatible groove with the protrusion, to make the negative pole currect collecting plate be connect with the negative terminal conductive contact in the embedded groove of protrusion.The negative pole currect collecting component of the application has taken into account current-carrying capability and welding performance, so that the internal resistance of battery reduces, power-performance increases substantially, so as to avoid battery temperature during use excessively high, improve the homogeneity of battery pack temperature field, the Performance And Reliability for promoting battery pack, prolongs the service life.
Description
Technical field
This application involves field of batteries, and in particular to a kind of negative pole currect collecting component and the cylindrical battery for configuring the component.
Background technology
In recent years, with the continuous development in the markets such as hybrid vehicle, electric vehicle, battery-operated motor cycle, accumulator
Effect be increasingly taken seriously, the quantity of integrated battery is increasing in the scale of accumulator group, that is, every group, to the work(of accumulator
Rate output characteristics and reliability requirement are also higher and higher.
But the accumulator being widely used at present, such as Ni-MH battery, nickel-cadmium cell, lithium ion battery and lead-acid battery,
The case where all there is the capacity of single battery is bigger, and power-performance is remarkably decreased.There are many reason of causing this result, but
Be, wherein most important one the reason is that battery itself catchment effect decline, internal resistance it is larger caused by.Especially in big electricity
When flowing charge and discharge, because the heat that battery generates cannot export in time, whole group battery will work at high temperature, thus lead to battery
The rapid degradation of performance；More seriously, if internal battery pack heat derives are uneven, will make Individual cells be in than
With working under the higher environment temperature of other batteries in group, overcharges or cross to easily causing this percentage of batteries and put, performance crosses early ageing
It moves back, so as to cause the reduction of whole group battery performance and the lost of life.In order to reduce internal battery pack heat local accumulation and temperature not
Uniformly, people have to increase the arrangement spacing between battery, take ventilation even water flowing etc. to force cooling provision, so not only
The volume for increasing battery pack, more improves design difficulty and manufacturing cost.
The afflux structure of traditional accumulator anode and cathode is as shown below, uses the cylindrical type accumulator battery of metal-back
Shell 3 is the cylindrical type of hollow belt bottom, and the bottom of battery case 3 is also negative terminal simultaneously；Safety valve 4 is current sealed cell
On a kind of safety valve for generally using, that is, positive terminal 2；8 one side of negative pole currect collecting plate is by welding and cylindrical wound
The negative pole end of pole group (also referred to as electrode roll core) links together, while being linked together by welding and the shell bottom of battery case 3.
Anode collection disk 7 is linked together by welding with the pole group of cylindrical wound (also referred to as electrode roll core), while by welding and just
Extreme son 2 links together.Safety valve 4 realizes electric insulation with battery case 3 by the dead ring 5 of a plastic cement material, together
When play sealing function.
The making step of traditional storage battery：(1) positive plate 9, the negative plate 10 of predetermined size are produced by traditional technology,
Diaphragm 11 is placed between positive plate 9 and negative plate 10, cylindric pole group is wound into together, that is, winds pole piece.(2) electric resistance welding is used
Machine or laser welder weld together positive terminal and positive drainage strip 6；With resistance welder or laser welder by cathode
Terminal (battery case shell bottom) welds together with negative pole currect collecting plate 8；(3) pole for being wound into tubular is assembled into battery case 3, it will
The needle electrode of resistance welder is inserted into from the center of tubular pole group, and is contacted with anode collection plate 7, by another of resistance welder
Electrode is contacted and is welded with battery case bottom.Electrolyte is injected, then with similar method by the drainage element on anode collection plate
It is welded with safety valve 4.(4) it uses mechanical means to seal battery case 3 and safety valve 4 by felt pad 5 and realizes electric insulation.
Above-mentioned anode collection plate 7, positive drainage strip 6, negative pole currect collecting plate 8 (especially drainage strip) are single-layer metal piece knot
Structure, when sheet metal than it is relatively thin when, be easy to weld, but carry electric current it is smaller.If simply increasing sheet thicknesses, to improve afflux
The current capacity of plate and drainage plate carrying, can be significantly increased welding difficulty.
Invention content
The purpose of the application is：In view of the deficiencies of the prior art, this project proposes a kind of new structural negative pole currect collecting component
With the cylindrical battery for configuring the component.
The technical solution of the application is：
A kind of negative pole currect collecting component of cylindrical battery, including negative pole currect collecting plate and negative terminal, the negative pole currect collecting plate
Arranged in the same direction with the thickness of the negative terminal, that side of the negative pole currect collecting plate towards the negative terminal form along
The protrusion that the negative pole currect collecting plate thickness direction outwardly protrudes, the negative terminal towards that side of the negative pole currect collecting plate at
Type has be recessed inwardly along the negative terminal thickness direction and compatible groove, the protrusion insertion with the protrusion
To make the negative pole currect collecting plate be connect with the negative terminal conductive contact in the groove.
This negative pole currect collecting component of the application further includes following preferred embodiment based on the above technical solution：
The battery case of the negative terminal and cylindrical battery is separate structure.
The negative pole currect collecting plate and the negative terminal are welded and fixed.
The welding region of the negative pole currect collecting plate and the negative terminal is in the junction of the protrusion and the groove.
The outer profile of the negative pole currect collecting plate and the negative terminal is circle, and the two is coaxially arranged.
The negative pole currect collecting plate is made of thickness 2mm sheet metals below.
The negative terminal is provided with liquid injection hole.
The outer profile of the negative pole currect collecting plate and the negative terminal is circular configuration, and the two is coaxially arranged.
A kind of cylindrical battery, including：
Cylindric battery case,
The winding pole piece being contained in the battery case,
The anode collection plate for being contained in the battery case and being welded with the anode of the winding pole piece,
The negative pole currect collecting plate for being contained in the battery case and being welded with the cathode of the winding pole piece,
Negative terminal set on battery case axial direction bottom end, and
Positive terminal set on battery case axial direction top；
The negative terminal is separate structure, the thickness of the negative pole currect collecting plate and the negative terminal with the battery case
Arrangement in the same direction, that side of the negative pole currect collecting plate towards the negative terminal is formed along the negative pole currect collecting plate thickness side
To the protrusion outwardly protruded, that side of the negative terminal towards the negative pole currect collecting plate is formed along the negative terminal
It is that thickness direction is recessed inwardly and with the protrusion compatible groove, it is described to make in the embedded groove of protrusion
Negative pole currect collecting plate is connect with the negative terminal conductive contact.
Preferably, the negative terminal is welded and fixed with the battery case or mechanical snap is fixed, the negative pole currect collecting
The welding section of plate and the negative terminal is in the scarf of the protrusion and the groove.
The advantages of the application is：
1, protrusion is arranged in the application on negative pole currect collecting plate, and groove is arranged on negative terminal, and the cooperation of the two inlay card has
Sufficiently large conductive contact surfaces.And in order to ensure negative pole currect collecting plate and negative terminal electrical connection stability and bonding strength, also
Negative pole currect collecting plate and negative terminal are directly welded and fixed, the welding section of the two is in the scarf of protrusion and groove, is not necessarily to
Therebetween additional setting cathode drainage strip, assembling is more convenient, and conveyance capacity is also stronger.Because of negative pole currect collecting plate and negative pole end
Son directly comes into contact in a large area and welds, even if very thin (facilitating welding) that negative pole currect collecting plate is done, remains on very strong
Current-carrying capability.
2, negative terminal and battery case are separate structure, the two fission connection, so that negative pole currect collecting plate and negative pole end
Son refills after can completing connection outside battery case to battery case, simplifies the manufacture craft of battery.
3, compared with existing battery, the positive and negative electrode afflux component of the application has taken into account current-carrying capability and welding performance,
So that the internal resistance of battery reduces, power-performance increases substantially, and so as to avoid battery temperature during use excessively high, improves
The homogeneity of battery pack temperature field promotes the Performance And Reliability of battery pack, prolongs the service life.Meanwhile making large-sized battery pack
Cooling problem be easy solve, reduce the complexity and manufacturing cost of design.
Description of the drawings
In order to illustrate more clearly of the technical solution of the embodiment of the present application, required use in being described below to embodiment
Attached drawing be briefly described, the accompanying drawings in the following description is only some embodiments of the present application, for the common skill in this field
For art personnel, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of conventional cylindrical cells；
Fig. 2 is one of the decomposition texture schematic diagram of cylindrical battery in the embodiment of the present application；
Fig. 3 is two of the decomposition texture schematic diagram of cylindrical battery in the embodiment of the present application；
Fig. 4 is the decomposition texture schematic diagram of anode collection component in the embodiment of the present application；
Fig. 5 is the installation diagram of anode collection component in the embodiment of the present application；
Fig. 6 is the decomposition texture schematic diagram of negative pole currect collecting component in the embodiment of the present application；
Fig. 7 is the installation diagram of negative pole currect collecting component in the embodiment of the present application；
Wherein：In Fig. 1,1- batteries, 2- positive terminals, 3- battery cases, 4- safety valves, 5- insulator seal rings, 6- anodes
Drainage strip, 7- anode collection items, 8- negative pole currect collecting plates, 9- positive plates, 10- negative plates, 11- diaphragms.
In Fig. 2 to Fig. 7,1- battery cases, 2- winds pole piece, 3- anode collection plates, the first welding sections 301-, 302- second
Welding section, 4- negative pole currect collecting plates, 401- protrusions, the annular region of 402- protrusions periphery, 5- negative terminals, 501- grooves, 6- is just
Extreme son, 601- cavitys, 7- anode drainage plates, 8- sealing rings.
Specific implementation mode
Said program is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
The application and be not limited to limitation scope of the present application.The implementation condition used in embodiment can be done according to the condition of specific producer
Further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
Fig. 2 and Fig. 3 show a specific embodiments of this cylindrical battery of the application, with conventional cylindrical cells phase
It is same, also include：Cylindric battery case 1, the winding pole piece 2 being contained in battery case, be contained in battery case and with
The anode collection plate 3 for winding the anode welding of pole piece is contained in the cathode collection of the cathode welding in battery case and with winding pole piece
Flowing plate 4 is set to the negative terminal 5 of battery case axial direction bottom end, is set to the positive terminal 6 on battery case axial direction top.With Fig. 1 institutes
The conventional batteries shown are identical, and winding pole piece 2 is formed by positive plate, negative plate and membrane winding.The electrolyte of battery is generally liquid
State is distributed in positive plate, negative plate and diaphragm and is accommodated by battery case, while close together with positive plate, negative plate and diaphragm
It is enclosed in battery case.Electrolyte can also be gelatinous and diaphragm is combined together.
With reference to shown in Fig. 4 and Fig. 5, the key improvements of the present embodiment are：Above-mentioned anode collection plate 3 is towards positive terminal 6
One positive drainage plate 7 of that side welding, the thickness of positive drainage plate 7 and the thickness of positive terminal 6 arranges in the same direction, positive terminal
6 form being recessed inwardly along 3 thickness direction of anode collection plate and are drained with anode towards that side of anode collection plate 3
7 compatible cavity 601 of plate, positive drainage plate 7 are embedded in cavity 601 to be connect with 6 conductive contact of positive terminal.
Above-mentioned anode collection plate 3, positive 7 common positive terminal 6 of drainage plate form follow-on anode collection component.
In follow-on anode collection component, anode collection plate 3 is using the sheet metal support for the thinner thickness for being easy to welding, thickness
Generally less than 2mm, more preferably little Yu 1mm.And positive drainage plate 7 uses thickness larger, to play collection and transmission high current
Effect, be generally 1mm~30mm, more preferably 1~2mm.
Above-mentioned anode collection plate 3, positive drainage plate 7 and 6 outer profile of positive terminal are circle, and anode collection plate 3,
Positive drainage plate 7 and positive terminal 6 are coaxially arranged.And the center of anode collection plate 3 and positive drainage plate 7 offers circle
Through-hole, circular through hole is for being arranged safety valve.The diameter of circular through hole most cans be compared to circle on positive drainage plate 7 on anode collection plate 3
The big 2mm or more of diameter of shape through-hole.
Anode collection plate 3 includes the first welding section 301 at its center and the annulus positioned at the first welding section periphery
Second welding section 302 of shape, wherein the first welding section 301 is for welding positive drainage plate 7, the second welding section 302 is for welding
Wind pole piece 2.
In order to reinforce the bonding strength and connective stability of anode collection plate 3 and positive terminal 6, preferably make anode collection plate
3 are interference fitted with the cavity 601 on positive terminal 6, and are further welded and fixed anode collection plate 3 and positive terminal 6.
In the present embodiment, positive terminal 6 is not welded and fixed with battery case 1, and by sealing ring 9 flexible and is set
It is placed in what the slot rolling (being not marked in figure) of 1 one end of battery case linked together, is provided between positive terminal 6 and battery case 1 close
Seal 9.When assembly, it is sequentially placed into sealing ring 8 and positive terminal 6 in slot rolling position, is pressed using closing up after traditional encryption seal
Positive terminal 6 and battery case 1 are tightly connected by the machinery seal method of contracting.
Shown in referring to figure 6 and figure 7, above-mentioned negative pole currect collecting plate 4 and negative terminal 5 together form a follow-on cathode collection
Component is flowed, in follow-on negative pole currect collecting component, the thickness of negative pole currect collecting plate 4 and negative terminal 5 is arranged in the same direction, cathode collection
That side of flowing plate 4 towards negative terminal 5 forms the protrusion 401 outwardly protruded along negative pole currect collecting plate thickness direction, cathode
That side of terminal 5 towards negative pole currect collecting plate 4 form it is being recessed inwardly along negative terminal thickness direction and with protrusion 401
Compatible groove 501, protrusion 401 are embedded in groove 501 to make negative pole currect collecting plate 4 be connect with 5 conductive contact of negative terminal.
Protrusion 401 is set on negative pole currect collecting plate 4, groove 501 is set on negative terminal 5, the direct inlay card of the two coordinates,
Protrusion 401 and the interference fit of groove 501 are in close contact.And in order to ensure that negative pole currect collecting plate 4 and the electrical connection of negative terminal 5 are stablized
Negative pole currect collecting plate 4 and negative terminal 5 are also directly welded and fixed by property and bonding strength, the present embodiment, and the welding section of the two is in
The scarf of protrusion 401 and groove 501 assembles more convenient, overcurrent energy it is not necessary that cathode drainage strip is additionally arranged between
Power is also stronger.
Above-mentioned negative pole currect collecting plate 4 is made of the sheet metal for the thinner thickness for being easy to welding, and thickness is generally less than 1mm,
Protrusion 401 on negative pole currect collecting plate 4 is not only embedded in the groove 501 of negative terminal 5, but also is welded and fixed with negative terminal 5, with
Improve the connective stability of negative pole currect collecting plate 4 and negative terminal 5.Annular region in 401 periphery of protrusion on negative pole currect collecting plate 4
402 with the cathode end face of winding pole piece 2 for welding.
The outer profile of negative pole currect collecting plate 4 and negative terminal 5 is circle, and the two is coaxially arranged.
In addition, in the present embodiment, above-mentioned negative terminal 5 and battery case 1 are separate structure, and the two is welded to connect.So set
Meter is advantageous in that, the connection (welding) of negative terminal 5 and negative pole currect collecting plate 4 can be first completed outside battery case 1, then will connection
Negative terminal 5 and negative pole currect collecting plate 4 together is filled to battery case 1, negative terminal 5 and battery case 1 is welded together, group
Dress process is simpler.
The preparation method of this cylindrical battery of the present embodiment mainly includes the following steps that：
1) make corresponding construction battery case 1, winding pole piece 2, anode collection plate 3, negative pole currect collecting plate 4, positive terminal 6,
Negative terminal 5, positive drainage plate 7 and sealing ring 9.Wherein, battery case 1 is made of tubular metal, as alkaline storage battery is common
The materials such as the common aluminium of nickel plating carbon steel, lithium ion battery, stainless steel.And one end of battery case 1 is formed with slot rolling (this is traditional skill
Art).Winding pole piece 2 is formed by positive plate, negative plate and diaphragm spiral winding, internal diameter of winding 2 outer diameter of pole piece than battery case 1
Small 0.1~0.5mm.
2) after positive drainage plate 7 is welded with anode collection plate 3, using end face Welding by anode collection plate 3 and cathode collection
Flowing plate 4 is respectively welded at the both ends of winding pole piece 2.
3) above-mentioned steps 2 will be passed through) treated with anode collection plate 3, negative pole currect collecting plate 4 and positive drainage plate 7
Winding pole piece 2 is put into battery case 1, and anode collection plate 3 is made to be in the slot rolling end of battery case 1.
4) it is sequentially placed into sealing ring 8 and positive terminal 6 in slot rolling position, using compression of closing up after traditional encryption seal
Positive terminal 6 and battery case 1 are sealed connected together by machinery seal method.3 interference of anode collection plate is embedded at positive terminal
In 6 cavity 601, to realize anode collection plate 3 and positive terminal 6 be fixedly connected and the two conductive contact.When necessary
It can also be welded and fixed from outside by positive terminal 6 and anode collection plate 3, to reinforce the bonding strength of the two.
5) by the groove 501 in the protrusion 401 and negative terminal 5 on negative pole currect collecting plate 4 by negative pole currect collecting plate 4 and cathode
Terminal 5 compresses connection (forcing together), then is welded and fixed negative pole currect collecting plate 4 and negative terminal 5 using laser welding process；
6) other end of battery case 1 will be fixed to by the negative terminal 5 with negative pole currect collecting plate 4 of step 5) processing,
And ensure the leakproofness of negative terminal 5 and 1 junction of battery case.It, can be with for the battery case 1 and negative terminal 5 of metal material
Using the methods of argon arc welding, Laser Welding, electron beam weldering or laser soldering, electron beam soldering sealing.Traditional add can also be used
Close up the machinery seal method of compression after sealing ring, and round negative terminal is assembled together and is sealed with battery case.
After electrolyte is perfused by the liquid injection hole of cathode later, then liquid injection hole sealed up.Note is provided on negative terminal
Fluid apertures will seal up after the completion of fluid injection.
Certainly, safety valve and liquid injection hole can also be arranged in anode collection component in we, and cancels on negative pole currect collecting component
Liquid injection hole.
It should be noted that the structure of above-mentioned anode collection component and negative pole currect collecting component can be exchanged mutually.
Above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to allow people that can understand this Shen
Content please is simultaneously implemented according to this, and the protection domain of the application can not be limited with this.It is all according to the application main technical schemes
The equivalent transformation or modification that Spirit Essence is done, should all cover within the protection domain of the application.
Claims (10)
1. a kind of negative pole currect collecting component of cylindrical battery, including negative pole currect collecting plate (4) and negative terminal (5), which is characterized in that
The thickness of the negative pole currect collecting plate (4) and the negative terminal (5) arranges that the negative pole currect collecting plate (4) is born towards described in the same direction
That side of extreme son (5) forms the protrusion (401) outwardly protruded along the negative pole currect collecting plate thickness direction, the cathode
That side of terminal (5) towards the negative pole currect collecting plate (4) form it is being recessed inwardly along the negative terminal thickness direction,
And the compatible groove (501) with raised (401), the protrusion (401) are embedded in described groove (501) to make described
Negative pole currect collecting plate (4) is connect with the negative terminal (5) conductive contact.
2. the negative pole currect collecting component of cylindrical battery according to claim 1, which is characterized in that the negative terminal (5)
Battery case with cylindrical battery is separate structure.
3. the negative pole currect collecting component of cylindrical battery according to claim 1, which is characterized in that the negative pole currect collecting plate
(4) it is welded and fixed with the negative terminal (5).
4. the negative pole currect collecting component of cylindrical battery according to claim 3, which is characterized in that the negative pole currect collecting plate
(4) and the welding section of the negative terminal (5) is in the scarfs of raised (401) and the groove (501).
5. the negative pole currect collecting component of cylindrical battery according to claim 1, which is characterized in that the negative pole currect collecting plate
(4) and the outer profile of the negative terminal (5) is circle, and the two is coaxially arranged.
6. the negative pole currect collecting component of cylindrical battery according to claim 1, which is characterized in that the negative pole currect collecting plate
(4) it is made of thickness 2mm sheet metals below.
7. the negative pole currect collecting component of cylindrical battery according to claim 1, which is characterized in that the negative terminal (5)
It is provided with liquid injection hole.
8. the negative pole currect collecting component of cylindrical battery according to claim 1, which is characterized in that the negative pole currect collecting plate
(4) and the outer profile of the negative terminal (5) is circular configuration, and the two is coaxially arranged.
9. a kind of cylindrical battery, including：
Cylindric battery case (1),
The winding pole piece (2) being contained in the battery case,
The anode collection plate (3) for being contained in the battery case and being welded with the anode of the winding pole piece,
The negative pole currect collecting plate (4) for being contained in the battery case and being welded with the cathode of the winding pole piece,
Negative terminal (5) set on battery case axial direction bottom end, and
Positive terminal (6) set on battery case axial direction top；
It is characterized in that, the negative terminal (5) is separate structure, the negative pole currect collecting plate (4) and institute with the battery case (1)
The thickness for stating negative terminal (5) arranges that the negative pole currect collecting plate (4) is molded towards that side of the negative terminal (5) in the same direction
There is a protrusion (401) outwardly protruded along the negative pole currect collecting plate thickness direction, the negative terminal (5) is towards the cathode collection
That side of flowing plate (4) forms being recessed inwardly along the negative terminal thickness direction and is mutually fitted with raised (401)
The groove (501) matched, the protrusion (401) are embedded in described groove (501) that the negative pole currect collecting plate (4) is made to bear with described
Extreme son (5) conductive contact connection.
10. cylindrical battery according to claim 9, which is characterized in that the negative terminal (5) and the battery case
(1) it is welded and fixed, it is (401) and described that the welding section of the negative pole currect collecting plate (4) and the negative terminal (5) is in the protrusion
The scarf of groove (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820341015.8U CN207947342U (en) | 2018-03-13 | 2018-03-13 | Negative pole currect collecting component and the cylindrical battery for configuring the component |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820341015.8U CN207947342U (en) | 2018-03-13 | 2018-03-13 | Negative pole currect collecting component and the cylindrical battery for configuring the component |
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| CN207947342U true CN207947342U (en) | 2018-10-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022241615A1 (en) * | 2021-05-17 | 2022-11-24 | 微宏动力系统（湖州）有限公司 | Positive electrode current collector disc and cylindrical battery |
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2018
- 2018-03-13 CN CN201820341015.8U patent/CN207947342U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022241615A1 (en) * | 2021-05-17 | 2022-11-24 | 微宏动力系统（湖州）有限公司 | Positive electrode current collector disc and cylindrical battery |
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Effective date of registration: 20230804 Address after: Room J2243, No. 6, Lane 129, Huajiang Road, Jiading District, Shanghai, 201800 Patentee after: Shanghai Qike Network Technology Co.,Ltd. Address before: No. 39 Anzhi Street, Industrial Park, Suzhou City, Jiangsu Province, 215026 Patentee before: ANKAO (SUZHOU) ENERGY Co.,Ltd. |
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