CN104900840B - A kind of sealing ring for secondary battery negative pole seal body - Google Patents
A kind of sealing ring for secondary battery negative pole seal body Download PDFInfo
- Publication number
- CN104900840B CN104900840B CN201510323639.8A CN201510323639A CN104900840B CN 104900840 B CN104900840 B CN 104900840B CN 201510323639 A CN201510323639 A CN 201510323639A CN 104900840 B CN104900840 B CN 104900840B
- Authority
- CN
- China
- Prior art keywords
- negative pole
- sealing ring
- circuit board
- battery container
- pole cap
- 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.)
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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
- H01M50/572—Means for preventing undesired use or discharge
-
- 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 of a single cell or a single battery
- H01M50/183—Sealing members
-
- 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 of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
-
- 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
Abstract
The invention provides a kind of sealing ring for secondary battery negative pole seal body, seal body includes：Negative pole cap, circuit board module and sealing ring；Circuit board module is plastic flexible circuit board, produces elastic deformation by the extruding of sealing ring and is used for being stuck in inside battery container；Sealing ring is a flexible and elastic ring insulating blanket, it is arranged in the space of battery container, circuit board module and negative pole cap, the section of sealing ring is in shape, a part for shape is used for permanent circuit plate module under the extruding of battery container, another part is used for isolating battery container and negative pole cap, sealing negative pole cap, battery container and circuit board module；Sealing ring is circular arc with the position of battery container interior contact, for coordinating the arc structure of battery container；Sealing ring is used for isolating battery container and the part of negative pole cap, stretches out and is higher than battery container certain distance, and flushes with negative pole cap, to prevent battery from producing short circuit when charging.
Description
Technical field
The present invention relates to a kind of secondary cell is and in particular to a kind of sealing ring for secondary battery negative pole seal body.
Background technology
In recent years, secondary cell (also referred to as rechargeable battery) has been widely used for various portable electric equipments and electronics
In equipment, such as toy, handheld device etc., this proposes higher and higher requirement to secondary cell energy storage energy.Lithium ion secondary
Battery is due to having the advantages that energy is high, with high power discharge, environmental protection, thus gradually can applying in above field.
The normal work of rechargeable battery is frequently necessary to the IC chip cooperation with other functions, has reached preferable work
Make effect.Generally rechargeable battery is packaged respectively with IC chip, then passes through the connection of circuit board and wire, knot again
It is combined use.So peripheral cell is many, and production process is many, high cost, and rechargeable battery is big with IC chip volume, property
Can be poor, it is unfavorable for miniaturization or miniaturization.
When carrying out lithium rechargeable battery encapsulation, the space shared by lithium rechargeable battery each several part is all more fixing,
Wherein, this electrostrictive polymer core inner then includes anode pole piece, isolating membrane and cathode pole piece, and deviates from isolating membrane in anode pole piece
The battery core closedtop that one end has specified altitude assignment is packaged, because battery core closedtop occupies the certain altitude of this polymer battery core,
Thus decreasing the useful space of this electrostrictive polymer core inner.And the space availability ratio of polymer battery core and lithium rechargeable battery
Energy density and capacity have compared with Important Relations, general, the space availability ratio of this polymer battery core is bigger, this lithium ion secondary electricity
The energy density in pond and capacity are also bigger, and therefore, existing lithium rechargeable battery generally existing due to polymer battery core
Low space utilization and the energy density of lithium rechargeable battery that leads to and the relatively low problem of capacity.
Content of the invention
The invention provides a kind of sealing ring for secondary battery negative pole seal body, described seal body is used for closing described
The peristome of the battery container of making active materials for use in secondary electrochemical cells, wherein said seal body includes：Negative pole cap, circuit board module and sealing
Circle, described negative pole cap is located at the outermost of described battery seal body, and described circuit board module is located inside described negative pole cap, and negative
Polar cap is connected by connector；Described circuit board module is plastic flexible circuit board, has certain elasticity, by described sealing
The extruding of circle produces elastic deformation and is used for being stuck in inside described battery container；Described sealing ring is a flexible and elastic ring insulation
Bed course, is arranged in the space of described battery container, circuit board module and negative pole cap, and the section of described sealing ring is inShape,
A part for shape is used for permanent circuit plate module under the extruding of described battery container, and another part is used for isolating described battery case
Body and described negative pole cap, seal described negative pole cap, battery container and circuit board module；Connect inside described sealing ring and battery container
Tactile position is circular arc, for coordinating the arc structure of battery container；Described sealing ring be used for isolating described battery container and
The part of described negative pole cap, stretches out and is higher than described battery container certain distance, and flushes with described negative pole cap, described to prevent
Battery produces short circuit when charging.
Preferably, the connector between described circuit board module and described negative pole cap is solder.
Preferably, the connector between described circuit board module and described negative pole cap is to snap connection.
Preferably, the edge of described negative pole cap is provided with least two dops, for described negative pole cap is fixed on institute
State on circuit board module.
Preferably, described circuit board module is with respect to the margin location corresponding to described negative pole cap on the side of described negative pole cap
Install and be equipped with least two draw-in grooves, for installing described negative pole cap.
Preferably, described circuit board module is at least one printed circuit board.
Preferably, the circuit cathode output end of described circuit board module is arranged on the connection of described negative pole cap and circuit board
Place, makes negative pole export conllinear with circuit ground.
Preferably, described negative pole cap and circuit board module connecting portion be shaped as " C " type circulus.
Preferably, the material of described sealing ring is transparent light conductive material.
Preferably, described battery also includes battery core and positive electrode cap, and wherein, described positive electrode cap is connected structure with described battery container
Become the positive pole of described secondary cell；Described battery core is positioned in described battery container, positioned at described positive electrode cap and described circuit board
Between module.
The ring structure design for secondary battery negative pole seal body of the present invention is ingenious rationally, can not only seal electricity
Space between pond housing, circuit board module and negative pole cap, the both positive and negative polarity of isolation battery, can also prevent from when battery charges producing
Raw short circuit.
Brief description
With reference to the accompanying drawing enclosed, the more purpose of the present invention, function and advantage will be as follows by embodiment of the present invention
Description is illustrated, wherein：
Fig. 1 a diagrammatically illustrates the structural representation of the electrochemical cell of the sealing ring containing the present invention and seal body.
Fig. 1 b is the decomposition diagram of the electrochemical cell containing the sealing ring of the present invention and seal body.
Fig. 1 c is the profile along A-A direction for Fig. 1 a.
The partial enlargement of the seal body accessory for electrochemical cell and sealing ring that Fig. 2 diagrammatically illustrates the present invention cuts open
View.
Fig. 3 a is the sectional view for the seal body accessory of electrochemical cell for the sealing ring of the present invention.
Fig. 3 b is the sectional exploded view for the seal body accessory of electrochemical cell for the sealing ring of the present invention.
Fig. 3 c is the axonometric chart for the seal body accessory of electrochemical cell for the sealing ring of the present invention.
Fig. 3 d is the top view for the seal body accessory of electrochemical cell for the sealing ring of the present invention.
Fig. 4 is the sealing ring of the present invention and seal body accessory is used for the signal with charger cooperation when electrochemical cell charges
Figure.
Specific embodiment
By reference to one exemplary embodiment, the purpose of the present invention and function and the side for realizing these purposes and function
Method will be illustrated.However, the present invention is not limited to one exemplary embodiment disclosed below；Can by multi-form Lai
It is realized.The essence of description is only to aid in the detail of the various equivalent modifications Integrated Understanding present invention.
It should be appreciated that aforementioned description substantially and subsequently detailed description are exemplary illustration and explanation, should not
As the restriction to the claimed content of the present invention.
Hereinafter, embodiments of the invention will be described with reference to the drawings.In the accompanying drawings, identical reference represent identical
Or similar part, or same or similar step.
The present invention provides a kind of electrochemical secondary cell, and Fig. 1 a, 1b are respectively the structure of the electrochemical cell 100 of the present invention
Schematic diagram and decomposition diagram.As shown in Fig. 1 a, 1b, a kind of electrochemical cell 100, including：Battery container 101, it is placed in battery
Battery core 102 in housing 101, negative pole cap 103, the circuit board module 104 in space being placed between battery core 102 and negative pole cap 103
And positive electrode cap 105, wherein negative pole cap are positioned at the outermost of battery seal body, circuit board module 104 is located in negative pole cap 103
Side, is connected by connector with negative pole cap 103.The negative pole cap of the present invention has electromagnetic shielding, electrostatic screen and circuit radiating
Function.It is cased with battery container 101 outside battery core 102, and be located between positive electrode cap 105 and circuit board module 104.Battery container 101
For the box hat of cylinder or rectangular structure, for output cathode, permanent circuit plate module 104.A reality according to the present invention
Apply example, positive electrode cap 105 is dextrorsely molded as one structure with described battery container 101, constitute the positive pole of secondary cell 100.
Circuit board module 104 is at least one of which printed circuit board (PCB) (PCB), has the first side and the second side, the wherein first side
Point to negative pole cap 103 with respect to described electrochemical cell 100, battery core is pointed to respect to described electrochemical cell 100 in the second side
102.PCB is the circuit board being printed with wiring pattern thereon, and has to have with the housing inner diameter of described battery 100 and be generally corresponding to
Size.Multiple printed conductors and components and parts are arranged in the first side or second side of circuit board module 104.Circuit board module 104
Near negative pole cap 103 side of described battery 100, between battery core 102 and negative pole cap 103.It is provided with circuit board module 104
Thus being fixed on negative pole cap 103 on circuit board module 104, for example, negative pole cap 103 can be welded on electricity by solder to connector
It is also possible to be fixed by the mode such as snapping connection in road plate module 104.Preferably, when being connected using snap, negative pole cap
103 edge is provided with least two dops, for negative pole cap 103 is fixed on circuit board module 104, and circuit board module
Block 104 is provided with least two draw-in grooves with respect to the marginal position corresponding to described negative pole cap 103 on the side of negative pole cap 103,
For installing negative pole cap 103.The circuit cathode output end of circuit board module 104 is arranged on described negative pole cap 103 and circuit board
Junction, makes negative pole export conllinear with circuit ground.Circuit board module is used for lithium cell charging protection, instruction of charging, acceptable
For the discharge prevention of battery, short-circuit protection, Cross prevention and control output voltage.Circuit board module 104 and battery core 102 it
Between be provided with electrode connecting line 108a and 108b, respectively the both positive and negative polarity of battery is drawn respectively, wherein 108a be positive lead,
108b is negative lead.Fig. 1 c is the profile along A-A direction for Fig. 1 a.In circuit board module 104 and outside battery container
Between 101, between negative pole cap 103 and battery container 101, it is provided with sealing ring 106.Sealing ring 106 is a flexibility and has elasticity
Annular insulating mat layer, it is shaped as along described electrochemical cell 101A-A sectionShape.Sealing ring 106 can rise
To the effect of the battery container 101 as first electrode for the isolation and the negative pole cap 103 as second electrode, and due to sealing ring
106 elastic reaction can extrude and fix circuit board module 104, the sky between sealed cell housing 101 and negative pole cap 103
Gap.Specifically, as illustrated in figure 1 c,A part for shape is used for extruding permanent circuit plate module 104 in described circle line 107 and electricity
Between pond housing 101, another part is used for isolating described battery container 101 and described negative pole cap 103.Preferably, sealing ring 106
Position with battery container 101 interior contact is circular arc, for coordinating the arc structure of battery container 101.Preferably, circuit
Plate module 104 is plastic flexible circuit board, has certain elasticity, produces elastic deformation by the extruding of sealing ring 106 and is used for
It is stuck in inside battery container 101.
On the outer surface of battery container 101, the position between corresponding battery core 102 and printed circuit board (PCB) 106 has a circle inside
Ring-shaped depression, is circle line 107.Described battery core 102 is positioned in described battery container 101, positioned at positive electrode cap 105 and described circle
Between the structure of line 107.The setting of sealing ring 106 and circle line 107 makes circuit board module 104 be fixed on battery container 101
Between ring-shaped depression and battery container 101 bottom, therefore battery container 101 and the connection of negative pole cap 103 does not need any welding.
Circle line 107 structure be provided for positioning circuit plate module 104, specifically, will be big for the diameter of circuit board module 104
Little be set between the internal diameter and the internal diameter of battery container 101 of the ring-shaped depression that circle line 107 is constituted, in assemble,
First battery core 102 is placed in battery container 101, then circuit board module 104 is assembled in battery container 101, circuit board
The size dimension of module 104 can be stuck in the structure of circle line 107 thus avoiding the contact with battery core 102, then passes through again
Battery container 101 is isolated by sealing ring 106 with negative pole cap 103, completes the assembling of battery 100.Said structure makes electricity
Road plate module 104 by circle line 107 structure battery container 101 be internally formed one closing space be used for accommodating battery core
102, such that it is able to increase the volume of battery core 102, therefore increase the capacity of secondary cell.Preferably, battery core 102 is an airtight knot
Structure, is operated by being connected with corresponding battery plus-negative plate from internal its both positive and negative polarity of extraction of battery core 102.
Preferably, above-mentioned circle line 107 is 0.2-1.2mm with respect to battery container 101 depression in the surface depth.
Fig. 2 diagrammatically illustrates the enlarged partial sectional view of the seal body accessory 200 for electrochemical cell of the present invention.
As shown in Fig. 2 described seal body accessory 200 includes a PCB 201, the 2nd PCB 202, negative pole cap 203.According to the present invention's
One embodiment, a PCB 201 and the 2nd PCB 202 are area identical two printed circuit board.A described PCB 201
Near battery core 204, described 2nd PCB 202 is away from battery core 204.First PCB 201 is stuck in battery container 206 by circle line 205
On.Negative pole cap 203 described in 2nd PCB 202 passes through contact and realizes electrical connection, and forms a shielding construction with it.First PCB
201 are disposed with multiple chips or circuit components near the side of battery core 204 and the 2nd PCB 202 away from the side of battery core 204,
Wherein, the components and parts that can produce radiation in the course of the work are arranged in the shielding construction of the 2nd PCB 202 and negative pole cap 203 composition
In.The 2nd PCB 202, the outside of negative pole cap 203 and battery container 206 and between be provided with sealing ring 207.Sealing ring 207
For a flexible and elastic ring insulating blanket, it is arranged in the space of described battery container 206, the 2nd PCB 202 and negative pole cap 203
In, the section of described sealing ring 207 is inShape,A part for shape is used for fixing first under the extruding of battery container 206
At circle line 205, another part is used for isolating battery container 206 and negative pole cap 203 to PCB 201 and the 2nd PCB 202, and sealing is negative
Space between polar cap 203, battery container 206 and a PCB 201 and the 2nd PCB 202.Sealing ring 207 and battery container
The position of 206 interior contact is circular arc, for coordinating the arc structure of battery container 206；Wherein, sealing ring 207 be used for every
From the part of battery container 206 and negative pole cap 203, stretch out and be higher than battery container 206 certain distance, and neat with negative pole cap 203
Flat.The position contacting with a PCB and the 2nd PCB in battery container 206 is contact-enhancing tin plating 210, with potted circuit plate with
Gap between battery container.By the through hole 209 between a PCB and the 2nd PCB, the negative pole that battery core 204 is drawn connects
Line 208b (208a is positive lead, and in figure is not shown) is connected with the wire on a PCB and the 2nd PCB.Through hole 209 interior
Surface is coated with conductive material, for example, copper facing, therefore by through hole 209, the wiring of multiple circuit boards can be connected to one
Rise, and be connected with the position of negative pole cap and circuit board contacts, thus being conducted to negative pole cap.
Fig. 3 a is the sectional view of the seal body accessory 300 for electrochemical cell of the present invention.Fig. 3 b is the use of the present invention
Sectional exploded view in the seal body accessory 300 of electrochemical cell.As shown in Fig. 3 a, 3b, described seal body accessory 300 includes bearing
Polar cap 301, sealing ring 302, circuit board module 303.Preferably, the edge corresponding position with negative pole cap 301 on circuit board module 303
It is provided with charging indicator light 305.Negative pole cap 301 is shaped as " C " type circulus, that is, with circuit board module 303 connecting portion
The edge of negative pole cap has breach 304, and breach 304 is the light admission port of charging indicator light 305, and described breach 304 has certain
Height but the height (as shown in Figure 3 c) less than negative pole cap, in order to charging indicator light 305 to be come out, the corresponding electricity in its position
The position of the charging indicator light 305 in road plate module 303.Sealing ring 302 is a flexible and elastic ring insulating blanket, can be complete
The light admission port (as shown in Figure 3 d) of charging indicator light 305 is lived in all standing, and the material of sealing ring 302 is transparent light conductive material, can
The light that charging indicator light 305 sends is made to pass through described sealing ring and make whole sealing ring printing opacity.
Fig. 4 is used for the schematic diagram with charger cooperation when electrochemical cell charges for sealing ring of the present invention.As shown in figure 4,
When battery needs to charge, be possible to when putting it into charging battery cartridge can because shell fragment charging battery cartridge within or spring and
Battery container as positive pole contacts by mistake and is short-circuited.Apply the electrochemical cell 400 of sealing ring of the present invention, have and be arranged in
Sealing ring 404 in the space of battery container 401, circuit board module 402 and negative pole cap 403, the section of described sealing ring 404 is inShape,A part for shape is used for permanent circuit plate module 402 under the extruding of battery container 401, and another part is used for isolating
Battery container 401 and negative pole cap 403, sealing negative pole cap 403, battery container 401 and circuit board module 402.And, sealing ring
404 are used for isolating battery container 401 and the part of negative pole cap 403, stretch out and are higher than battery container 401 certain distance, and with negative
Polar cap 403 flushes, and the shell fragment within charging battery cartridge or spring so can be made not to reach battery container and prevent battery from existing
Short circuit is produced during charging.
The ring structure design for secondary battery negative pole seal body of the present invention is ingenious rationally, can not only seal electricity
Space between pond housing, circuit board module and negative pole cap, the both positive and negative polarity of isolation battery, can also prevent from when battery charges producing
Raw short circuit.
Explanation in conjunction with the present invention disclosing here and practice, the other embodiment of the present invention is for those skilled in the art
All will be readily apparent and understand.Illustrate and embodiment be to be considered only as exemplary, the true scope of the present invention and purport equal
It is defined in the claims.
Claims (10)
1. a kind of sealing ring for secondary battery negative pole seal body, described seal body is used for closing described making active materials for use in secondary electrochemical cells
Battery container peristome, wherein said seal body includes：Negative pole cap, circuit board module and sealing ring,
Described negative pole cap is located at the outermost of described battery seal body, and described circuit board module is located inside described negative pole cap, with
Negative pole cap is connected by connector；
Described circuit board module is plastic flexible circuit board, has certain elasticity, produces bullet by the extruding of described sealing ring
Property deformation is used for being stuck in inside described battery container；
Described sealing ring is a flexible and elastic ring insulating blanket, is arranged in described battery container, circuit board module and negative pole
In the space of cap, the section of described sealing ring is inShape,A part for shape is used for fixing under the extruding of described battery container
Circuit board module, another part is used for isolating described battery container and described negative pole cap, seal described negative pole cap, battery container and
Circuit board module；
Described sealing ring is circular arc with the position of battery container interior contact, for coordinating the arc structure of battery container；
Described sealing ring is used for isolating described battery container and the part of described negative pole cap, stretches out and is higher than described battery container one
Set a distance, and flush with described negative pole cap, to prevent described battery from producing short circuit when charging；
Described battery container is the box hat of cylinder or rectangular structure.
2. sealing ring according to claim 1, the connector between wherein said circuit board module and described negative pole cap is
Solder.
3. sealing ring according to claim 1, the connector between wherein said circuit board module and described negative pole cap is
Snap connection.
4. sealing ring according to claim 3, the edge of wherein said negative pole cap is provided with least two dops, is used for
Described negative pole cap is fixed on described circuit board module.
5. sealing ring according to claim 3, wherein said circuit board module is right on the side with respect to described negative pole cap
Described in Ying Yu, the marginal position of negative pole cap is provided with least two draw-in grooves, for installing described negative pole cap.
6. sealing ring according to claim 1, wherein said circuit board module is at least one printed circuit board.
7. sealing ring according to claim 1, the circuit cathode output end of wherein said circuit board module is arranged on described
Negative pole cap and the junction of circuit board, make negative pole export conllinear with circuit ground.
8. sealing ring according to claim 1, wherein said negative pole cap is shaped as " C " with circuit board module connecting portion
Type circulus.
9. sealing ring according to claim 1, the material of wherein said sealing ring is transparent light conductive material.
10. a kind of making active materials for use in secondary electrochemical cells comprising sealing ring as claimed in claim 1, described battery also includes battery core and just
Polar cap, wherein,
Described positive electrode cap and described battery container connect and compose the positive pole of described secondary cell；
Described battery core is positioned in described battery container, between described positive electrode cap and described circuit board module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323639.8A CN104900840B (en) | 2015-06-12 | 2015-06-12 | A kind of sealing ring for secondary battery negative pole seal body |
| PCT/CN2015/096609 WO2016197564A1 (en) | 2015-06-12 | 2015-12-08 | Seal ring for secondary battery cathode sealing body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323639.8A CN104900840B (en) | 2015-06-12 | 2015-06-12 | A kind of sealing ring for secondary battery negative pole seal body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104900840A CN104900840A (en) | 2015-09-09 |
| CN104900840B true CN104900840B (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510323639.8A Active CN104900840B (en) | 2015-06-12 | 2015-06-12 | A kind of sealing ring for secondary battery negative pole seal body |
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| CN (1) | CN104900840B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197564A1 (en) * | 2015-06-12 | 2016-12-15 | 福建南平南孚电池有限公司 | Seal ring for secondary battery cathode sealing body |
| CN110534676B (en) * | 2019-08-30 | 2022-06-14 | 深圳先进储能材料国家工程研究中心有限公司 | Rechargeable battery |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1714334B1 (en) * | 2004-01-28 | 2017-11-08 | Lg Chem, Ltd. | Secondary battery of assemble-type structure |
| CN201789007U (en) * | 2010-08-19 | 2011-04-06 | 比亚迪股份有限公司 | Cover plate assembly and lithium-ion battery with cover plate assembly |
| CN102447090B (en) * | 2010-10-01 | 2015-03-25 | 微宏动力系统（湖州）有限公司 | Assembled battery |
| CN203826493U (en) * | 2014-01-29 | 2014-09-10 | 刘礼刚 | Lithium ion battery and electric connecting terminal thereof |
| CN204793020U (en) * | 2015-06-12 | 2015-11-18 | 福建南平南孚电池有限公司 | A sealing washer and secondary cell for secondary cell negative pole seals personally experiences sth. part of body |
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2015
- 2015-06-12 CN CN201510323639.8A patent/CN104900840B/en active Active
Also Published As
| Publication number | Publication date |
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| CN104900840A (en) | 2015-09-09 |
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