CN104900840A - Seal ring used for secondary battery negative electrode seal body - Google Patents
Seal ring used for secondary battery negative electrode seal body Download PDFInfo
- Publication number
- CN104900840A CN104900840A CN201510323639.8A CN201510323639A CN104900840A CN 104900840 A CN104900840 A CN 104900840A CN 201510323639 A CN201510323639 A CN 201510323639A CN 104900840 A CN104900840 A CN 104900840A
- Authority
- CN
- China
- Prior art keywords
- negative pole
- circuit board
- sealing ring
- pole cap
- board module
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 230000005489 elastic deformation Effects 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 5
- 239000011149 active material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- JPOPEORRMSDUIP-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(2,3,5,6-tetrachlorophenyl)benzene Chemical compound ClC1=CC(Cl)=C(Cl)C(C=2C(=C(Cl)C=C(Cl)C=2Cl)Cl)=C1Cl JPOPEORRMSDUIP-UHFFFAOYSA-N 0.000 description 10
- 229910052744 lithium Inorganic materials 0.000 description 8
- LJQOBQLZTUSEJA-UHFFFAOYSA-N 1,2,3,5-tetrachloro-4-(2,3,5,6-tetrachlorophenyl)benzene Chemical compound ClC1=C(Cl)C(Cl)=CC(Cl)=C1C1=C(Cl)C(Cl)=CC(Cl)=C1Cl LJQOBQLZTUSEJA-UHFFFAOYSA-N 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 150000002641 lithium Chemical class 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
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working 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
- 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
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a seal ring used for a secondary battery negative electrode seal body. The seal body comprises a negative electrode cap, a circuit board module and the seal ring, wherein the circuit board module is a plastic flexible circuit board, and is squeezed by the seal ring to generate elastic deformation to be stuck in a battery shell; the seal ring is a flexible and elastic annular insulating cushion layer, and is arranged in a gap among the battery shell, the circuit board module and the negative electrode cap, the cross section of the seal ring takes a shape (shown in the description), one part of the cross section is used for fixing the circuit board module under the squeezing by the battery shell, and the other part of the cross section is used for insulating the batter shell from the negative electrode cap, and sealing the negative electrode cap, the battery shell and the circuit board module; the part, in contact with the inside of the batter shell, of the seal ring is arc, and is used for being matched with an arc structure of the battery shell; the part, used for insulating the batter shell from the negative electrode cap, of the seal ring extends out and is a certain distance higher than the battery shell, and is flush with the negative electrode cap, so as to prevent short circuit of the battery during charging.
Description
Technical field
The present invention relates to a kind of secondary cell, be specifically related 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 in various portable electric equipment and electronic equipment, such as toy, handheld device etc., and this proposes more and more higher requirement to secondary cell energy storage energy.Lithium rechargeable battery due to have energy high, can the advantage such as high power discharge, environmental protection, be thus applied in above field gradually.
The normal work of rechargeable battery often needs to coordinate with the integrated circuit (IC) chip of other functions, has reached desirable working effect.Usual rechargeable battery and integrated circuit (IC) chip encapsulate respectively, and then by the connection of circuit board and wire, combine use.Such peripheral cell is many, and production process is many, cost is high, and greatly, poor-performing, is unfavorable for miniaturization or microminiaturization for rechargeable battery and integrated circuit (IC) chip volume.
When carrying out lithium rechargeable battery encapsulation, space shared by lithium rechargeable battery each several part is all comparatively fixing, wherein, this electrostrictive polymer core inner then comprises anode pole piece, barrier film and cathode pole piece, and the battery core closedtop in one end that anode pole piece deviates from barrier film with specified altitude assignment encapsulates, because battery core closedtop occupies the certain altitude of this polymer battery core, thus decrease the useful space of this electrostrictive polymer core inner.And the space availability ratio of polymer battery core and the energy density of lithium rechargeable battery and capacity have comparatively Important Relations, general, the space availability ratio of this polymer battery core is larger, the energy density of this lithium rechargeable battery and capacity are also larger, therefore, existing lithium rechargeable battery ubiquity the low and energy density of the lithium rechargeable battery caused of space availability ratio due to polymer battery core and the lower problem of capacity.
Summary of the invention
The invention provides a kind of sealing ring for secondary battery negative pole seal body, described seal body is used for the peristome of the battery container closing described making active materials for use in secondary electrochemical cells, wherein said seal body comprises: negative pole cap, circuit board module and sealing ring, described negative pole cap is positioned at the outermost of described battery seal body, described circuit board module is positioned at inside described negative pole cap, is connected by connector with negative pole cap; Described circuit board module is plastic flexible circuit board, has certain elasticity, produces elastic deformation be used for being stuck in described battery container inside by the extruding of described sealing ring; Described sealing ring is a flexibility and elastic ring insulating blanket, and be arranged in the space of described battery container, circuit board module and negative pole cap, the cross section of described sealing ring is
shape,
a part for shape is used for permanent circuit plate module under the extruding of described battery container, and another part, for isolating described battery container and described negative pole cap, seals described negative pole cap, battery container and circuit board module; The position of described sealing ring and battery container interior contact is circular arc, for the arc structure of matching battery housing; Described sealing ring, for isolating the part of described battery container and described negative pole cap, to stretch out and higher than described battery container certain distance, and flushes with described negative pole cap, produces short circuit to prevent described battery 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 with described negative pole cap is that buckle is connected.
Preferably, the edge of described negative pole cap is provided with at least two dops, for described negative pole cap is fixed on described circuit board module.
Preferably, described circuit board module is provided with at least two draw-in grooves, for installing described negative pole cap relative to the marginal position side of described negative pole cap corresponding to 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 junction of described negative pole cap and circuit board, and negative pole is exported and circuit ground conllinear.
Preferably, the shape of described negative pole cap and circuit board module connecting portion is " C " type circulus.
Preferably, the material of described sealing ring is transparent light conductive material.
Preferably, described battery also comprises battery core and positive electrode cap, and 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.
Ring structure for secondary battery negative pole seal body of the present invention design is rationally ingenious, can not only sealed cell housing, space between circuit board module and negative pole cap, the both positive and negative polarity of isolation battery, can also prevent short circuit when battery charges.
Accompanying drawing explanation
With reference to the accompanying drawing of enclosing, the following description by embodiment of the present invention is illustrated by the more object of the present invention, function and advantage, wherein:
Fig. 1 a diagrammatically illustrates the structural representation of the electrochemical cell containing sealing ring of the present invention and seal body.
Fig. 1 b is the decomposition diagram of the electrochemical cell containing sealing ring of the present invention and seal body.
Fig. 1 c is the profile of Fig. 1 a along A-A direction.
Fig. 2 diagrammatically illustrates of the present invention for the seal body accessory of electrochemical cell and the enlarged partial sectional view of sealing ring.
Fig. 3 a is the cutaway view of sealing ring of the present invention for the seal body accessory of electrochemical cell.
Fig. 3 b is the sectional exploded view of sealing ring of the present invention for the seal body accessory of electrochemical cell.
Fig. 3 c is the stereogram of sealing ring of the present invention for the seal body accessory of electrochemical cell.
Fig. 3 d is the vertical view of sealing ring of the present invention for the seal body accessory of electrochemical cell.
Fig. 4 is the schematic diagram that sealing ring of the present invention and seal body accessory coordinate with charger when charging for electrochemical cell.
Embodiment
By reference to one exemplary embodiment, object of the present invention and function and the method for realizing these objects and function will be illustrated.But the present invention is not limited to following disclosed one exemplary embodiment; Can be realized it by multi-form.The essence of specification is only help various equivalent modifications Integrated Understanding detail of the present invention.
Should be appreciated that description and the follow-up detailed description of aforementioned cardinal principle are exemplary illustration and explanation, should not be used 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 numeral represents same or similar parts, or same or similar step.
The invention provides a kind of electrochemical secondary cell, Fig. 1 a, 1b are respectively the structural representation Sum decomposition perspective view of electrochemical cell 100 of the present invention.As shown in Fig. 1 a, 1b, a kind of electrochemical cell 100, comprise: battery container 101, the battery core 102 be placed in battery container 101, negative pole cap 103, the circuit board module 104 being placed in the space between battery core 102 and negative pole cap 103 and positive electrode cap 105, wherein negative pole cap is positioned at the outermost of battery seal body, circuit board module 104 is positioned at inside negative pole cap 103, is connected by connector with negative pole cap 103.Negative pole cap of the present invention has the function of electromagnetic shielding, electrostatic screen and circuit heat radiation.Battery core 102 overcoat has battery container 101, and between positive electrode cap 105 and circuit board module 104.Battery container 101 is the box hat of cylinder or rectangular structure, for output cathode, and permanent circuit plate module 104.According to one embodiment of present invention, positive electrode cap 105 is molded as one structure with described battery container 101 dextrorsely, forms the positive pole of secondary cell 100.
Circuit board module 104 is at least one layer printed circuit board (PCB), has the first side and the second side, and wherein the first side is pointed to negative pole cap 103, second side relative to described electrochemical cell 100 and pointed to battery core 102 relative to described electrochemical cell 100.PCB is the circuit board it being printed with wiring pattern, and has and have roughly corresponding size with the housing inner diameter of described battery 100.Multiple printed conductor 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.Circuit board module 104 is provided with connector thus is fixed on circuit board module 104 by negative pole cap 103, such as, negative pole cap 103 can be welded on circuit board module 104 by solder, also can be fixed by modes such as buckle connections.Preferably, when adopting snap to connect, the edge of negative pole cap 103 is provided with at least two dops, for negative pole cap 103 is fixed on circuit board module 104, and circuit board module 104 is provided with at least two draw-in grooves, for installing negative pole cap 103 relative to the marginal position side of negative pole cap 103 corresponding to described negative pole cap 103.The circuit cathode output end of circuit board module 104 is arranged on described negative pole cap 103 and the junction of circuit board, and negative pole is exported and circuit ground conllinear.Circuit board module is used for lithium cell charging protection, charging instruction, can also be used for the discharge prevention of battery, short-circuit protection, Cross prevention and control output voltage.Be provided with electrode connecting line 108a and 108b between circuit board module 104 and battery core 102, drawn respectively by the both positive and negative polarity of battery respectively, wherein 108a is positive lead, and 108b is negative lead.Fig. 1 c is the profile of Fig. 1 a along A-A direction.Between circuit board module 104 and the battery container 101 of outside, between negative pole cap 103 and battery container 101, be provided with sealing ring 106.Sealing ring 106 is a flexibility and has flexible annular insulating mat layer, and its shape along described electrochemical cell 101A-A section is
shape.Sealing ring 106 can play the effect of the battery container 101 of isolation as the first electrode and the negative pole cap 103 as the second electrode, and because the elastic reaction of sealing ring 106 can extrude and fix circuit board module 104, the space between sealed cell housing 101 and negative pole cap 103.Particularly, as illustrated in figure 1 c,
a part for shape is for extruding permanent circuit plate module 104 between described circle line 107 and battery container 101, and another part is for isolating described battery container 101 and described negative pole cap 103.Preferably, sealing ring 106 is circular arc with the position of battery container 101 interior contact, for the arc structure of matching battery housing 101.Preferably, circuit board module 104 is plastic flexible circuit board, has certain elasticity, produces elastic deformation be used for being stuck in battery container 101 inside by the extruding of sealing ring 106.
The ring-shaped depression that position on the outer surface of battery container 101 between corresponding battery core 102 and printed circuit board (PCB) 106 has a circle inside is circle line 107.Described battery core 102 is positioned in described battery container 101, between positive electrode cap 105 and the structure of described circle line 107.Sealing ring 106 and circle line 107 be arranged so that circuit board module 104 is fixed on bottom the ring-shaped depression of battery container 101 and battery container 101 between, therefore battery container 101 and the connection of negative pole cap 103 are without any need for welding.
The setting of circle line 107 structure is used for positioning circuit plate module 104, particularly, the diameter of circuit board module 104 is set between the internal diameter of the ring-shaped depression formed at circle line 107 and the internal diameter of battery container 101, when assembling battery, first battery core 102 is placed in battery container 101, then circuit board module 104 is assembled in battery container 101, the structure that the size dimension of circuit board module 104 can be stuck in circle line 107 avoids the contact with battery core 102, and then by sealing ring 106, battery container 101 and negative pole cap 103 are isolated, complete the assembling of battery 100.Said structure makes circuit board module 104 to define a closed space in battery container 101 inside for holding battery core 102 by the structure of circle line 107, thus can increase the volume of battery core 102, therefore increases the capacity of secondary cell.Preferably, battery core 102 is a closed structure, carries out work by being connected from its both positive and negative polarity of battery core 102 inside extraction with corresponding battery plus-negative plate.
Preferably, above-mentioned circle line 107 is 0.2-1.2mm relative to the battery container 101 depression in the surface degree of 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 Figure 2, described seal body accessory 200 comprises a PCB 201, the 2nd PCB 202, negative pole cap 203.According to one embodiment of present invention, a PCB 201 is two printed circuit board that area is identical with the 2nd PCB 202.A described PCB 201 is near battery core 204, and described 2nd PCB 202 is away from battery core 204.One PCB 201 is stuck on battery container 206 by circle line 205.Negative pole cap 203 described in 2nd PCB 202 realizes electrical connection by contact, and with its composition shielding construction.One PCB 201 is furnished with multiple chip 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 are in the course of the work arranged in the shielding construction that the 2nd PCB 202 and negative pole cap 203 form.The outside of the 2nd PCB 202, negative pole cap 203 and battery container 206 and between be provided with sealing ring 207.Sealing ring 207 is a flexibility and elastic ring insulating blanket, and be arranged in described battery container 206, the 2nd PCB 202 with the space of negative pole cap 203, the cross section of described sealing ring 207 is
shape,
a part for shape is used under the extruding of battery container 206, fixing a PCB 201 and the 2nd PCB 202 in circle line 205 place, another part, for isolating battery container 206 and negative pole cap 203, seals negative pole cap 203, battery container 206 and the space between a PCB 201 and the 2nd PCB 202.Sealing ring 207 is circular arc with the position of battery container 206 interior contact, for the arc structure of matching battery housing 206; Wherein, sealing ring 207, for isolating the part of battery container 206 and negative pole cap 203, to stretch out and higher than battery container 206 certain distance, and flushes with negative pole cap 203.The position contacted with the 2nd PCB at battery container 206 and a PCB is contact-enhancing zinc-plated 210, with the gap between potted circuit plate and battery container.By the through hole 209 between a PCB and the 2nd PCB, the negative lead 208b (208a is positive lead, not shown) battery core 204 drawn is connected with the wire on the 2nd PCB with a PCB.The inner surface of through hole 209 is coated with electric conducting material, such as, be copper facing, therefore the wiring of multiple circuit board can be linked together by through hole 209, and be connected with the position of circuit board contacts with negative pole cap, thus conducted to negative pole cap.
Fig. 3 a is the cutaway view of the seal body accessory 300 for electrochemical cell of the present invention.Fig. 3 b is the sectional exploded view of the seal body accessory 300 for electrochemical cell of the present invention.As shown in Fig. 3 a, 3b, described seal body accessory 300 comprises negative pole cap 301, sealing ring 302, circuit board module 303.Preferably, circuit board module 303 is provided with charging indicator light 305 with the corresponding position, edge of negative pole cap 301.Negative pole cap 301 is " C " type circulus with the shape of circuit board module 303 connecting portion, namely the edge of negative pole cap has breach 304, breach 304 is the Tong Guangkou of charging indicator light 305, described breach 304 has certain height but is no more than the height (as shown in Figure 3 c) of negative pole cap, in order to charging indicator light 305 is come out, the position of the charging indicator light 305 in its position corresponding circuits plate module 303.Sealing ring 302 is a flexibility and elastic ring insulating blanket, the Tong Guangkou (as shown in Figure 3 d) of charging indicator light 305 can be covered completely, the material of sealing ring 302 is transparent light conductive material, and the light that charging indicator light 305 can be made to send is through described sealing ring and make whole sealing ring printing opacity.
Fig. 4 is the schematic diagram that sealing ring of the present invention coordinates with charger when charging for electrochemical cell.As shown in Figure 4, when battery needs to charge, likely when putting it into charging battery cartridge and can contact by mistake as the battery container of positive pole and be short-circuited because of the shell fragment of charging battery cartridge inside or spring.Apply the electrochemical cell 400 of sealing ring of the present invention, have and be arranged in battery container 401, circuit board module 402 and the sealing ring 404 in the space of negative pole cap 403, the cross section of described sealing ring 404 is
shape,
a part for shape is used for permanent circuit plate module 402 under the extruding of battery container 401, and another part, for isolating battery container 401 and negative pole cap 403, seals negative pole cap 403, battery container 401 and circuit board module 402.And, sealing ring 404 is for isolating the part of battery container 401 and negative pole cap 403, stretching out and higher than battery container 401 certain distance, and flush with negative pole cap 403, the shell fragment of charging battery cartridge inside or spring contact can being made like this to prevent less than battery container battery from producing short circuit when charging.
Ring structure for secondary battery negative pole seal body of the present invention design is rationally ingenious, can not only sealed cell housing, space between circuit board module and negative pole cap, the both positive and negative polarity of isolation battery, can also prevent short circuit when battery charges.
In conjunction with the explanation of the present invention disclosed here and practice, other embodiments of the present invention are all easy to expect and understand for those skilled in the art.Illustrate and embodiment be only considered to exemplary, true scope of the present invention and purport limited by claim.
Claims (10)
1., for a sealing ring for secondary battery negative pole seal body, described seal body is used for the peristome of the battery container closing described making active materials for use in secondary electrochemical cells, and wherein said seal body comprises: negative pole cap, circuit board module and sealing ring,
Described negative pole cap is positioned at the outermost of described battery seal body, and described circuit board module is positioned at inside described negative pole cap, is connected by connector with negative pole cap;
Described circuit board module is plastic flexible circuit board, has certain elasticity, produces elastic deformation be used for being stuck in described battery container inside by the extruding of described sealing ring;
Described sealing ring is a flexibility and elastic ring insulating blanket, and be arranged in the space of described battery container, circuit board module and negative pole cap, the cross section of described sealing ring is
shape,
a part for shape is used for permanent circuit plate module under the extruding of described battery container, and another part, for isolating described battery container and described negative pole cap, seals described negative pole cap, battery container and circuit board module;
The position of described sealing ring and battery container interior contact is circular arc, for the arc structure of matching battery housing;
Described sealing ring, for isolating the part of described battery container and described negative pole cap, to stretch out and higher than described battery container certain distance, and flushes with described negative pole cap, produces short circuit to prevent described battery when charging.
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 with described negative pole cap is that buckle is connected.
4. sealing ring according to claim 3, the edge of wherein said negative pole cap is provided with at least two dops, 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 provided with at least two draw-in grooves, for installing described negative pole cap relative to the marginal position side of described negative pole cap corresponding to 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 the junction of described negative pole cap and circuit board, and negative pole is exported and circuit ground conllinear.
8. sealing ring according to claim 1, the shape of wherein said negative pole cap and circuit board module connecting portion is " C " type circulus.
9. sealing ring according to claim 1, the material of wherein said sealing ring is transparent light conductive material.
10. comprise a making active materials for use in secondary electrochemical cells for sealing ring as claimed in claim 1, described battery also comprises battery core and positive electrode 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 true CN104900840A (en) | 2015-09-09 |
| CN104900840B 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN104900840B (en) |
Cited By (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 |
| CN110534676A (en) * | 2019-08-30 | 2019-12-03 | 深圳先进储能材料国家工程研究中心有限公司 | Rechargeable battery |
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| WO2005074055A1 (en) * | 2004-01-28 | 2005-08-11 | 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 |
| CN102447090A (en) * | 2010-10-01 | 2012-05-09 | 微宏动力***（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 |
Cited By (3)
| 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 |
| CN110534676A (en) * | 2019-08-30 | 2019-12-03 | 深圳先进储能材料国家工程研究中心有限公司 | Rechargeable battery |
| 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 |
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