CN204927423U - Button lithium cell - Google Patents
Button lithium cell Download PDFInfo
- Publication number
- CN204927423U CN204927423U CN201520698891.2U CN201520698891U CN204927423U CN 204927423 U CN204927423 U CN 204927423U CN 201520698891 U CN201520698891 U CN 201520698891U CN 204927423 U CN204927423 U CN 204927423U
- Authority
- CN
- China
- Prior art keywords
- lithium cell
- backup pad
- button
- negative pole
- annular
- 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.)
- Expired - Fee Related
Links
Landscapes
- Primary Cells (AREA)
Abstract
The utility model provides a sealed button lithium cell that the effect is good, space utilization is high, including negative pole casing and anodal casing, negative pole casing outer lane is provided with the coupler body, the parcel has sealed rubber ring on the coupler body inside and outside wall, the inclosed cavity of sealed cooperation formation between the coupler body that the concave edge and the negative pole casing outer lane that are provided with on the anodal casing were provided with, be provided with hollow structure's annular supporting shoe between sealed rubber ring and the anodal casing bottom, make it form loop tunnel formula space, it utilizes the space of battery inner chamber to be convenient for the maximize, increase battery discharge and storage capacity, anodal shells inner wall is hugged closely to annular supporting shoe outer wall, be provided with the annular shaped support plates that the vertical section is " perpendicular to " form in the cavity, the below of annular supporting shoe is arranged in to annular shaped support plates's outward flange, be provided with circular gasket between annular shaped support plates's the inward flange, but the coating has electron conduction's protective coat on the positive plate, the use of the mass flow body under the high voltage has been stabilized, thereby make the battery of this structure obtain actual application.
Description
Technical field
The utility model relates to technical field of lithium batteries, particularly relates to a kind of button-type lithium cell.
Background technology
As everyone knows, it is little that button-type lithium cell has volume, and cell voltage is high, and discharging voltage balance, the features such as operating temperature range is wide, and storage life is long, are widely used in computer main board, calculator, electronic watch, remote controller, electronic toy and ornaments etc.The O-ring seal of button-type lithium cell and anode cover bump contact, ensure that the sealing property of battery, but the internal volume of battery is little, the therefore non-maximization of battery capacity.Simultaneously, the body seal of existing button-type lithium cell uses mould that metal shell oral area is carried out arc-shaped bend mostly, thus the edge that extruding five metals covers moulds circle, the strain of cushion rubber is utilized to be sealed by battery compartment reception room, to ensure normally carrying out of the stable and exoelectrical reaction of the cell reaction pole group material component in reception room, but sealing effectiveness is still not good.
In production application, in order to support the larger sealing pressure of negative pole housing upper, the plastic tube of lithium battery bottom must ensure to have certain thickness, and the passive thick cushion rubber of this circle, the space in battery container chamber certainly will be occupied, decrease the addition of cell active materials, thus decrease the discharge capacity of battery.Moreover when battery specifications thickness is larger, the contraction distortion of plastic tube chamber darker plastic cement is also larger.This brings certain difficulty to component processing and Assurance of Size.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of sealing effectiveness good, the button-type lithium cell that space availability ratio is high, comprise negative pole housing and positive pole housing, the external circle of described negative electrode casing is provided with coupler body, described coupler body inside and outside wall is enclosed with O-ring seal, the cavity that the formation one that is sealed and matched between the coupler body that the concave edge that described positive pole housing is provided with and the external circle of negative electrode casing are provided with is airtight, an annular support block is provided with between described O-ring seal and positive pole housing bottom, described annular support block outer wall is close to positive pole inner walls, the annular backup pad of a vertical section in " ⊥ " shape is provided with in described cavity, the outward flange of described annular backup pad is placed in the below of annular support block, the longitudinal outer surface of annular backup pad is close on the inwall of annular support block and O-ring seal, the height of described annular backup pad is lower than the height of cavity, a circular gasket is provided with between the inward flange of described annular backup pad, anode collection net is provided with between described annular backup pad, positive plate, barrier film, negative plate and negative pole currect collecting net, described anode collection net is placed in circular gasket, and be pressed on the inward flange of annular backup pad, it is online that described positive plate is placed in anode collection, positive plate is isolated by the negative plate of barrier film and diaphragm, a negative pole currect collecting net is provided with above described negative plate.
Concave edge on described positive pole housing encases the coupler body on negative pole housing by crush seal cushion rubber.
The transverse gage of described O-ring seal is equal with the transverse gage of annular support block.
Described annular support block is hollow structure, and is provided with several apertures communicated between annular support block with annular backup pad.
Described anode collection net, positive plate, barrier film, negative plate and negative pole currect collecting net are column type.
The diameter of described anode collection net, positive plate, barrier film, negative plate and negative pole currect collecting net is all equal with the interior diameter of annular backup pad.
Described positive plate surface-coated has can the protective finish of electron conduction.
Described annular support block is made up of stainless steel.
Described positive plate thickness is the twice of negative plate thickness.
Described circular gasket is round rubber pad.
The beneficial effects of the utility model are: the design of round rubber pad, when making the concave edge crush seal cushion rubber on its positive pole housing encase the coupler body on negative pole housing, obtain cushioning not easy damaged battery bottom, ensure the use safety of battery, the design of annular support block substitutes too high O-ring seal, anticathode housing and O-ring seal play strong supporting role, the design of annular backup pad, can prevent battery anode slice radial expansion excessive in discharge process from making its axial expansion, to ensure that axial contact force just reduces the internal resistance of cell, promote battery power output performance, annular support block is hollow structure, it is made to form an annular tunnel type space, be convenient to the space of maximum using battery compartment, store electric liquid, increase battery discharge and storage capacity, positive plate is coated with can the protective finish of electron conduction, stabilize collector use under high voltages, thus the battery of this structure is on the actual application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1-negative pole housing, 2-positive pole housing, 3-coupler body, 4-O-ring seal, 5-concave edge, 6-cavity, 7-annular support block, 8-annular backup pad, 9-circular gasket, 10-anode collection net, 11-positive plate, 12-barrier film, 13-negative plate, 14-negative pole currect collecting net.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail;
As shown in Figure 1, a kind of button-type lithium cell, comprise negative pole housing 1 and positive pole housing 2, negative pole housing 1 outer ring is provided with coupler body 3, coupler body 3 inside and outside wall is enclosed with O-ring seal 4, the cavity 6 that the formation one that is sealed and matched between the coupler body 3 that the concave edge 5 that positive pole housing 2 is provided with is provided with negative pole housing 1 outer ring by extruding is airtight, the annular support block 7 of a hollow structure is provided with between bottom O-ring seal 4 and positive pole housing 2, annular support block 7 is made up of stainless steel, and between annular support block 7 with annular backup pad 8, be provided with several apertures communicated, the transverse gage of annular support block 7 is equal with the transverse gage of O-ring seal 4, annular support block 7 outer wall is close to positive pole housing 2 inwall, the annular backup pad 8 of a vertical section in " ⊥ " shape is provided with in cavity 6, the outward flange of annular backup pad 8 is placed in the below of annular support block 7, the longitudinal outer surface of annular backup pad 8 is close to annular support block 7 with on the inwall of O-ring seal 4, the height of annular backup pad 8 is lower than the height of cavity 6, the circular gasket 9 that a quality of rubber materials is made is provided with between the inward flange of annular backup pad 8, the anode collection net 10 of column type is provided with between annular backup pad 8, positive plate 11, barrier film 12, negative plate 13 and negative pole currect collecting net 14, anode collection net 10, positive plate 11, barrier film 12, the diameter of negative plate 13 and negative pole currect collecting net 14 is all equal with the interior diameter of annular backup pad 8, anode collection net 10 is placed in circular gasket 9, and be pressed on the inward flange of annular backup pad 8, positive plate 11 is placed on anode collection net 10, positive plate 11 surface-coated has can the protective finish of electron conduction, positive plate 11 thickness is the twice of negative plate 13 thickness, positive plate 11 is isolated with the negative plate 13 above barrier film 12 by barrier film 12, a negative pole currect collecting net 14 is provided with above negative plate 13.
During making, positive pole housing 2 is placed on pressurizing unit, annular backup pad 8 is placed on top bottom positive pole housing 2, annular support block 7 is placed in positive pole housing 2, and be pressed on the outward flange of annular backup pad 8, a circular gasket 9 is placed with between the inward flange of annular backup pad 8, circular gasket 9 is placed with anode collection net 10 successively, positive plate 11, barrier film 12, negative plate 13 and negative pole currect collecting net 14, the coupler body 3 be provided with negative pole housing 1 outer ring is together placed in positive pole housing 2 together with the O-ring seal 4 being wrapped in coupler body 3 outside, pressurizing unit starts the concave edge 5 extruded on positive pole housing 2, it is made coupler body 3 and O-ring seal 4 to be extruded, ensure its density, namely the making of lithium battery is completed.
The design of round rubber pad, when making the concave edge 5 crush seal cushion rubber 4 on its positive pole housing 2 encase the coupler body 3 on negative pole housing 1, obtain cushioning not easy damaged battery bottom, ensure the use safety of battery, the design of annular support block 7 substitutes too high O-ring seal 4, anticathode housing 1 and O-ring seal 4 play strong supporting role, the design of annular backup pad 8, can prevent battery anode slice 11 radial expansion excessive in discharge process from making its axial expansion, to ensure that axial contact force just reduces the internal resistance of cell, promote battery power output performance, annular support block 7 is hollow structure, it is made to form an annular tunnel type space, be convenient to the space of maximum using battery compartment, store electric liquid, increase battery discharge and storage capacity, positive plate 11 is coated with can the protective finish of electron conduction, stabilize collector use under high voltages, thus the battery of this structure is on the actual application, the utility model is the energy density being promoted battery by the utilance of the raising battery useful space, thus battery capacity is significantly promoted, the utility model is reasonable in design, space availability ratio is high.
Claims (10)
1. a button-type lithium cell, comprise negative pole housing (1) and positive pole housing (2), it is characterized in that described negative pole housing (1) outer ring is provided with coupler body (3), described coupler body (3) inside and outside wall is enclosed with O-ring seal (4), the cavity (6) that the formation one that is sealed and matched between the coupler body (3) that the concave edge (5) that described positive pole housing (2) is provided with and negative pole housing (1) outer ring are provided with is airtight, an annular support block (7) is provided with between described O-ring seal (4) and positive pole housing (2) bottom, described annular support block (7) outer wall is close to positive pole housing (2) inwall, the annular backup pad (8) of a vertical section in " ⊥ " shape is provided with in described cavity (6), the outward flange of described annular backup pad (8) is placed in the below of annular support block (7), annular backup pad (8) longitudinal outer surface is close to annular support block (7) with on the inwall of O-ring seal (4), the height of described annular backup pad (8) is lower than the height of cavity (6), a circular gasket (9) is provided with between the inward flange of described annular backup pad (8), anode collection net (10) is provided with between described annular backup pad (8), positive plate (11), barrier film (12), negative plate (13) and negative pole currect collecting net (14), described anode collection net (10) is placed in circular gasket (9), and be pressed on the inward flange of annular backup pad (8), described positive plate (11) is placed on anode collection net (10), positive plate (11) is isolated with the negative plate (13) of barrier film (12) top by barrier film (12), described negative plate (13) top is provided with a negative pole currect collecting net (14).
2. a kind of button-type lithium cell according to claim 1, the concave edge (5) that it is characterized in that on described positive pole housing (2) encases the coupler body (3) on negative pole housing (1) by crush seal cushion rubber (4).
3. a kind of button-type lithium cell according to claim 1, is characterized in that the transverse gage of described O-ring seal (4) is equal with the transverse gage of annular support block (7).
4. a kind of button-type lithium cell according to claim 1, it is characterized in that described annular support block (7) is hollow structure, and be provided with several apertures communicated between annular support block (7) with annular backup pad (8).
5. a kind of button-type lithium cell according to claim 1, is characterized in that described anode collection net (10), positive plate (11), barrier film (12), negative plate (13) and negative pole currect collecting net (14) are column type.
6. a kind of button-type lithium cell according to claim 1, it is characterized in that described anode collection net (10), positive plate (11), barrier film (12), negative plate (13) and negative pole currect collecting net (14) diameter all equal with the interior diameter of annular backup pad (8).
7. a kind of button-type lithium cell according to claim 1, it is characterized in that described positive plate (11) surface-coated has can the protective finish of electron conduction.
8. a kind of button-type lithium cell according to claim 1, is characterized in that described annular support block (7) is made up of stainless steel.
9. a kind of button-type lithium cell according to claim 1, is characterized in that described positive plate (11) thickness is the twice of negative plate (13) thickness.
10. a kind of button-type lithium cell according to claim 1, is characterized in that described circular gasket (9) is for round rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520698891.2U CN204927423U (en) | 2015-09-10 | 2015-09-10 | Button lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520698891.2U CN204927423U (en) | 2015-09-10 | 2015-09-10 | Button lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204927423U true CN204927423U (en) | 2015-12-30 |
Family
ID=54976525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520698891.2U Expired - Fee Related CN204927423U (en) | 2015-09-10 | 2015-09-10 | Button lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204927423U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768554A (en) * | 2017-08-31 | 2018-03-06 | 深圳市秸川材料科技有限公司 | Button sandwich type element and button cell |
| CN108832037A (en) * | 2018-06-15 | 2018-11-16 | 宜昌力佳科技有限公司 | A kind of button cell |
-
2015
- 2015-09-10 CN CN201520698891.2U patent/CN204927423U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768554A (en) * | 2017-08-31 | 2018-03-06 | 深圳市秸川材料科技有限公司 | Button sandwich type element and button cell |
| CN108832037A (en) * | 2018-06-15 | 2018-11-16 | 宜昌力佳科技有限公司 | A kind of button cell |
| WO2019237649A1 (en) * | 2018-06-15 | 2019-12-19 | 宜昌力佳科技有限公司 | Button battery and preparation method therefor |
| CN108832037B (en) * | 2018-06-15 | 2021-03-23 | 宜昌力佳科技有限公司 | Button cell |
| EP3809484A4 (en) * | 2018-06-15 | 2021-07-28 | Yichang Power Glory Technology Co., Ltd. | Button battery and preparation method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203312383U (en) | Button type lithium battery with metal energy-collecting ring | |
| CN207517535U (en) | A kind of cylindrical lithium ion capacitor | |
| CN203218351U (en) | Button lithium battery with metal supporting ring | |
| CN204927423U (en) | Button lithium cell | |
| CN106486644A (en) | A kind of preparation method of Li-Si alloy negative pole | |
| CN202217750U (en) | Packaging structure for zinc-air battery | |
| CN102148377A (en) | Ultra-thin monomer battery used for high voltage thermal battery and preparation method thereof | |
| CN106159128B (en) | Rectangular winding-structure lead-acid battery and its manufacturing method | |
| CN104103849A (en) | Lithium iron phosphate power battery and manufacturing method thereof | |
| CN106848216A (en) | A kind of sheet sodium-ion battery NiXP/Ni negative materials and preparation method thereof | |
| CN107887608A (en) | A kind of chalina that is carbonized carries preparation method of the sulphur as lithium sulfur battery anode material | |
| CN107394266B (en) | Hydrogel electrolyte for magnesium air battery, preparation method of hydrogel electrolyte and magnesium air battery | |
| CN108987662A (en) | A kind of production technology of novel cylindrical lithium battery | |
| CN207558990U (en) | A kind of cylindrical nickel-hydrogen power battery | |
| CN202996990U (en) | Integrated iron-nickel storage battery pack | |
| CN201233933Y (en) | Pillar type lithium battery | |
| CN110323461A (en) | A kind of high-capacity lithium ion battery thionyl chloride energy-type cells and preparation method thereof | |
| CN204966579U (en) | Anodal post of inferior battery of lithium | |
| CN213752760U (en) | Current collector and lithium secondary battery | |
| CN202797175U (en) | Electrodeless piece non-winding type high power capacity nickelmetal hydride battery | |
| CN207183473U (en) | Zinc-air battery electrode pressing plate | |
| CN111082158B (en) | Quick-charging button battery and manufacturing method thereof | |
| CN109980291B (en) | Battery cell of cylindrical lithium-sulfur battery and preparation method and application thereof | |
| CN202004088U (en) | Battery negative plate for rapid trains | |
| CN207009595U (en) | Metal hydride-ickel accumulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20180910 |