CN206673027U - High power capacity carbon-ring type cylindrical lithium manganese cell structure - Google Patents
High power capacity carbon-ring type cylindrical lithium manganese cell structure Download PDFInfo
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- CN206673027U CN206673027U CN201720433362.9U CN201720433362U CN206673027U CN 206673027 U CN206673027 U CN 206673027U CN 201720433362 U CN201720433362 U CN 201720433362U CN 206673027 U CN206673027 U CN 206673027U
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- positive pole
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- ring type
- power capacity
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Abstract
The utility model discloses a kind of high power capacity carbon-ring type cylindrical lithium manganese cell structure, include the battery case of cylinder, core bar, positive pole and lithium band, barrier film is provided between the positive pole and the lithium band, the upper end of the battery case is provided with cover plate, the core bar is through the cover plate and is suspended from the top of the lithium band, the lower end of the core bar is welded with bonding jumper, the bonding jumper is stretched into inside the lithium band, the barrier film is coated on the outside of the lithium band, and the outside of the positive pole is provided with Conductive graphite cream as plus plate current-collecting body；The utility model core bar is transformed into the core bar for being suspended in battery upper end and the bonding jumper for stretching into inside battery active material by traditional club shaped structure, bonding jumper small volume, reduces the occupancy in inside battery space, adds the amount for the active material that inside battery can fill；Battery capacity rises to 950mAh.
Description
Technical field
The utility model belongs to technical field of lithium batteries, specifically a kind of high power capacity carbon-ring type cylindrical lithium manganese cell knot
Structure.
Background technology
The lithium-manganese cell of cylindrical type has high power capacity, and self discharge is small, the features such as operating temperature range wide (- 40~+60 DEG C),
Existing cylindrical lithium manganese cell is divided into power type battery and energy-type cells.Energy-type cells require the rated capacity of battery
Height, it is suitable for some electronic products for needing low current to export, output current is mainly milliampere level or more low current.Traditional energy
Amount type anode part is club shaped structure, and there is a core bar for playing afflux at center, and it can occupy inside battery space, subtract
Few battery capacity, as CR14250H battery capacity only has 850mAh, and for example the China of Application No. 201320732883.6 is specially
Profit, entitled " a kind of new construction of carbon packet mode cylindrical lithium manganese cell ", its positive pole conductor is located among battery, positive pole conductor it is upper
End is connected with the middle part of cell cover, and cell cover is stuck with sealing ring；The outside of sealing ring and the top of battery case
Connection；Positive electrode material, the outside cladding battery diaphragm of positive electrode material, battery diaphragm and battery case are full of around positive pole conductor
Negative material is full of between main body, battery bottom insulating trip is layed on the inside of the battery case of battery bottom, the positive pole of this battery
Conductor is then bar-like structure, and occupies the space of the positive electrode material of inside battery, and battery space has wasted, and improves battery most
High power capacity is limited.
The content of the invention
The purpose of this utility model is to provide a kind of high power capacity carbon-ring type cylindrical lithium manganese cell structure, simple in construction, just
Pole negative electrode active material compactedness is high, and inside battery space availability ratio is big, is suitable for use with the electronic product of low current, and battery holds
Amount is high.
The technical solution adopted in the utility model is：A kind of high power capacity carbon-ring type cylindrical lithium manganese cell structure, including circle
The battery case of cylindricality, core bar, positive pole and lithium band, barrier film is provided between the positive pole and the lithium band, the battery case
Upper end is provided with cover plate, and the core bar is through the cover plate and is suspended from the top of the lithium band, and the lower end of the core bar is welded with gold
Belong to bar, the bonding jumper is stretched into inside the lithium band, and the barrier film is coated on the outside of the lithium band, is set on the outside of the positive pole
There is plus plate current-collecting body.
The utility model 1) core bar be transformed into by traditional club shaped structure be suspended in battery upper end core bar and stretch into battery
The combination of the bonding jumper of portion's active material, bonding jumper small volume, reduce the occupancy in inside battery space, add inside battery
The amount for the active material that can be filled；Bonding jumper has the function that negative current collector；2) compared to the CR14250H electricity of same model
Tankage rises to 950mAh；3) battery structure is simple, and production cost is low；4) plus plate current-collecting body is located at around battery case,
It is not take up the space inside battery center and ensure that the good afflux ability of anode.
Further, the lower surface of cover plate is stretched out in the lower end of the core bar, is provided between the core bar and the cover plate exhausted
Edge glass.Insulating glass will insulate between core bar and cover plate and the shell being connected with cover plate, prevent battery short circuit.
Further, the lower surface of the cover plate is connected with insulating trip, and the core bar passes through upper insulating trip.Upper insulating trip
Cover plate and the negative pole of bottom can be completely cut off.
Further, the upper insulating trip part covers the cover plate lower surface.The liquid injection hole of upper insulating trip to cover plate
Open up and seal squeezing into for nail and leave enough spaces.
Further, one end of the cover plate is provided with liquid injection hole, and sealing nail sealing liquid injection hole, institute is stretched out in the lower end for sealing nail
Cover plate is stated, a segment distance is left in the positive pole upper surface of the lower end and downside that seal nail.Sealing nail not can contact positive pole, prevent from destroying
The carbocyclic ring structure of positive pole.
Further, certain distance is left in the lower surface of the core bar and the upper surface of the lithium band.The bar portion of core bar is not
The arrangement space of lithium band is taken, increases the arrangement of negative electrode active material lithium band to greatest extent, increases battery capacity therewith.
Further, the lithium tape wrapping is around bonding jumper.Lithium band can be wrapped in the outside of bonding jumper, bonding jumper position
In the middle part gap of lithium band；Bonding jumper is very thin, and the space for taking inside battery is few than compared with thick core bar.
Further, the bottom of the battery case is covered with one layer of lower insulating trip, the lower end of the bonding jumper and lower insulation
A segment distance is left between piece.The segment distance can prevent bonding jumper from puncturing insulating trip and causing battery short circuit.
Further, Conductive graphite cream is scribbled on the outside of the positive pole as plus plate current-collecting body, Conductive graphite cream is positioned at electricity
Between pond shell and the positive pole, Conductive graphite cream contacts with battery case.Conductive graphite cream is enhanced between positive pole and shell
Electrical contact, reduce contact resistance；Conductive graphite cream has the function that plus plate current-collecting body simultaneously.
Further, it is the cylindrical-shaped structure of hollow structure inside the positive pole, is close to the positive pole on the outside of barrier film
Inwall.Lithium band is filled with hollow structure, the outer wrap of lithium band barrier film, and the outside of barrier film is in the hollow structure of positive pole
Wall；The volume ratio of hollow structure and whole positive pole is 1:1.8~2.0；The hollow structure can be got by looping machine.
Brief description of the drawings
Fig. 1 is axial section of the present utility model.
Fig. 2 is radial cutaway view of the present utility model.
Fig. 3 is anode structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, is easy to more clearly understand the utility model,
But the utility model is not limited to following embodiments.
" carbon-ring type " that the utility model high power capacity carbon-ring type cylindrical lithium manganese cell structure is previously mentioned is meant：Positive pole
3 for it is interior be hollow structure 3.1 structure, positive pole 3 is generally cylindrical, and the radial section of positive pole 3 is annular shape；Other positive pole 3
Composition material in contain carbon containing conductive agent.
As depicted in figs. 1 and 2, a kind of high power capacity carbon-ring type cylindrical lithium manganese cell structure of the utility model, it is overall in circle
Cylindricality, battery case 5 are located at the outermost cladding internal structure of battery, and the upper end of the battery case 5 is provided with cover plate 6, cover plate 6
Lower surface be connected with insulating trip 1.3, the upper middle part perforate of insulating trip 1.3, the radius of upper insulating trip 1.3 is less than the half of cover plate 6
Footpath；Insulated with the shorter core bar 1 that core emits through the middle part of cover plate 6 and the hole of upper insulating trip 1.3, the bar portion week cloth of core bar 1
Glass 1.2, the lithium band (negative pole) of the bottom face battery of core bar 1, core bar 1 do not contact with lithium band 2, are only suspended in the top of lithium band 2,
The conductive bonding jumper 1.1 of lower end spot welding of core bar 1, bonding jumper 1.1 stretch into the inside of lithium band 2 and wrap up adhesion, lithium band by lithium band 2
2 around bonding jumper 1.1, and bonding jumper 1.1 is compressed, and bonding jumper 1.1 can be nickel bar, and bonding jumper 1.1 has negative pole
The effect of collector；For lithium band 2 in cylinder, the outside of lithium band 2 is coated with barrier film 4, barrier film 4 can be polyethylene, polypropylene or
Polypropylene, polyethylene/polypropylene micropore diaphragm, the outside of barrier film 4 are the positive pole 3 of battery, positive pole 3 be filled in battery case 5 with
Between barrier film 4, positive pole 3 is by manganese dioxide, conductive agent (one kind in carbon black, acetylene black, electrically conductive graphite, CNT or two
More than kind) and adhesive (one in sodium carboxymethylcellulose, polytetrafluoroethylene (PTFE), Kynoar-hexafluoropropene and poly- butadiene-styrene rubber
Kind is two or more) composition；There are liquid injection hole, the liquid injection hole of sealing 1.4 closed covers 6 of nail, sealing nail 1.4 in one end of cover plate 6
Do not contacted with positive pole 3, it is necessary to leave a certain distance, sealing nail 1.4 and the distance at the center of cover plate 6 are more than upper insulating trip 1.3
Radius；5 whole bottom of battery case is covered with one layer of lower insulating trip 5.1, and the lower end of bonding jumper 1.1 can not connect with lower insulating trip 5.1
Touch；Conductive graphite cream 5.2 is scribbled between the outside of battery case 5 and positive pole 3, Conductive graphite cream 5.2 has plus plate current-collecting body
Effect.
As shown in figures 1 and 3, the inside of positive pole 3 is the cylindrical-shaped structure of hollow structure 3.1, during positive pole 3 is got by looping machine
The ratio of hollow structure 3.1, the volume of hollow structure 3.1 and the volume of whole positive pole 3 is 1:1.8~2.0,1 is taken in the utility model:
1.9, the inwall of positive pole 3 is close in the outside of barrier film 4, and the outside of lithium band 2 is close in the inner side of barrier film 4, and lithium band 2 is full of positive pole 3
Hollow structure 3.1 in, positive pole 3 is attached with electrolyte, and electrolyte is injected by liquid injection hole, and by sealing nail 1.4 sealing.This practicality
New core bar 1, sheet metal 1.1 and lithium band 2 is electrically connected, and the utility model carries positive pole 3, the conductive stone of hollow structure 3.1
Black breast 5.2 and battery case are electrically connected, and the utility model increases the utilization rate of energy-type cells inner space, improves battery
Capacity.
Assembling manufacturing process of the present utility model is as follows：
1) positive pole 3 prepares and entered shell：By heat treated manganese dioxide, conductive agent, adhesive, pure water according to mass ratio
(65~70)：(3~7)：(2~4)：(24~28) mix, be stirred into positive powder, positive powder is dried in an oven, do
Positive powder after dry is granulated by precompressed, and then powder is put into looping machine and gets hollow structure 3.1, forms the positive pole of carbocyclic ring
3, the volume ratio of hollow structure 3.1 and positive pole 3 is 1:1.8~2.0；Side wall in the battery case 5 of cylinder is coated into conduction
Aquadag 5.2, lower insulating trip 5.1 is welded into the bottom of battery case 5, after drying, the positive pole 3 of carbocyclic ring is put into battery case 5,
The outside of positive pole 3 and the bonding connection of Conductive graphite cream 5.2, dry a period of time；
2) negative pole prepares and entered shell：Core bar 1 welds through the middle part of cover plate 6 and upper insulating trip 1.3 with holes, the lower end of core bar 1
A bonding jumper 1.1 is connect, axle winding compresses centered on bonding jumper 1.1 by lithium band 2, barrier film 4 is wrapped on lithium band 2, then
It is put into the hollow structure 3.1 of positive pole 3；
3) fluid injection：The liquid injection hole of electrolyte from cover plate 6 is injected into battery, electrolyte is adsorbed on positive pole 3, will be sealed
The assembling of battery is completed in the press-in liquid injection hole of nail 1.4.The electrolyte of injection includes non-aqueous organic solvent and solute, wherein, solute
For the compound (lithium perchlorate, trifluoromethyl sulfonic acid lithium etc.) containing lithium salts, non-aqueous organic solvent is carbonates (propylene carbonate
Ester, ethylene carbonate, ethyl butyl carbonate, carbonic acid first butyl ester, diethyl carbonate, dimethyl carbonate or diethyl carbonate) or carbon
Esters of gallic acid and ethers (tetrahydrofuran, 1,2- dimethoxies, dimethoxy-ethane, diethoxyethane, 1,3- dioxolanes or
It is more than one or both of diglycol ethylene dimethyl ether) mixed solution.
Above-described embodiment is only schematical, the limit of used technical term in the utility model
Only for convenience of description, any equivalent replacement or substantially identical restriction all fall in protection model of the present utility model qualitative qualifier
In enclosing, one of ordinary skill in the art under the enlightenment of the utility model high power capacity carbon-ring type cylindrical lithium manganese cell structure,
In the case of the utility model aims and scope of the claimed protection are not departed from, many forms can be also derived, these are equal
Within the scope of protection of the utility model.
Claims (10)
1. a kind of high power capacity carbon-ring type cylindrical lithium manganese cell structure, include the battery case (5) of cylinder, core bar (1), positive pole
(3) barrier film (4) and lithium band (2), is provided between the positive pole (3) and the lithium band (2), it is characterised in that：The battery case
(5) upper end is provided with cover plate (6), and the core bar (1) is through the cover plate (6) and is suspended from the top of the lithium band (2), the core
The lower end of bar (1) is welded with bonding jumper (1.1), and the bonding jumper (1.1) stretches into lithium band (2) inside, barrier film (4) bag
The outside of the lithium band (2) is overlayed on, the outside of the positive pole (3) is provided with plus plate current-collecting body.
2. high power capacity carbon-ring type cylindrical lithium manganese cell structure according to claim 1, it is characterised in that：The core bar
(1) lower surface of cover plate (6) is stretched out in lower end, and insulating glass (1.2) is provided between the core bar (1) and the cover plate (6).
3. high power capacity carbon-ring type cylindrical lithium manganese cell structure according to claim 1 or 2, it is characterised in that：The lid
The lower surface of plate (6) is connected with insulating trip (1.3), and the core bar (1) passes through upper insulating trip (1.3).
4. high power capacity carbon-ring type cylindrical lithium manganese cell structure according to claim 3, it is characterised in that：The upper insulation
Piece (1.3) partly covers the cover plate (6) lower surface.
5. the high power capacity carbon-ring type cylindrical lithium manganese cell structure according to claim 1,2 or 4, it is characterised in that：It is described
One end of cover plate (6) is provided with liquid injection hole, and sealing nail (1.4) sealing liquid injection hole, the cover plate is stretched out in the lower end of sealing nail (1.4)
(6), a segment distance is left in the lower end of sealing nail (1.4) and positive pole (3) upper surface of downside.
6. high power capacity carbon-ring type cylindrical lithium manganese cell structure according to claim 1, it is characterised in that：The core bar
(1) certain distance is left in lower surface and the upper surface of the lithium band (2).
7. the high power capacity carbon-ring type cylindrical lithium manganese cell structure according to claim 1 or 6, it is characterised in that：The lithium
Band (2) is around bonding jumper (1.1).
8. high power capacity carbon-ring type cylindrical lithium manganese cell structure according to claim 1, it is characterised in that：Outside the battery
The bottom of shell (5) is covered with one layer of lower insulating trip (5.1), is left between the lower end of the bonding jumper (1.1) and lower insulating trip (5.1)
One segment distance.
9. high power capacity carbon-ring type cylindrical lithium manganese cell structure according to claim 1, it is characterised in that：The positive pole
(3) Conductive graphite cream (5.2) is scribbled on the outside of and is used as plus plate current-collecting body, Conductive graphite cream (5.2) is located at battery case (5) and institute
Between stating positive pole (3), Conductive graphite cream (5.2) contacts with battery case (5).
10. the high power capacity carbon-ring type cylindrical lithium manganese cell structure according to claim 1 or 9, it is characterised in that：It is described just
It is the cylindrical-shaped structure of hollow structure (3.1) inside pole (3), the inwall of the positive pole (3) is close on the outside of barrier film (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720433362.9U CN206673027U (en) | 2017-04-24 | 2017-04-24 | High power capacity carbon-ring type cylindrical lithium manganese cell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720433362.9U CN206673027U (en) | 2017-04-24 | 2017-04-24 | High power capacity carbon-ring type cylindrical lithium manganese cell structure |
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| CN206673027U true CN206673027U (en) | 2017-11-24 |
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| CN201720433362.9U Active CN206673027U (en) | 2017-04-24 | 2017-04-24 | High power capacity carbon-ring type cylindrical lithium manganese cell structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180976A (en) * | 2017-04-24 | 2017-09-19 | 武汉孚安特科技有限公司 | High power capacity carbon-ring type cylindrical lithium manganese cell and manufacture method |
| CN109786843A (en) * | 2018-12-29 | 2019-05-21 | 刘亚明 | A kind of high magnification pin type lithium ion battery |
| CN112510295A (en) * | 2020-11-30 | 2021-03-16 | 南通路远科技信息有限公司 | Battery with polymer shell |
-
2017
- 2017-04-24 CN CN201720433362.9U patent/CN206673027U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180976A (en) * | 2017-04-24 | 2017-09-19 | 武汉孚安特科技有限公司 | High power capacity carbon-ring type cylindrical lithium manganese cell and manufacture method |
| CN107180976B (en) * | 2017-04-24 | 2023-10-03 | 武汉孚安特科技有限公司 | High-capacity carbon-ring type cylindrical lithium-manganese battery and manufacturing method thereof |
| CN109786843A (en) * | 2018-12-29 | 2019-05-21 | 刘亚明 | A kind of high magnification pin type lithium ion battery |
| CN112510295A (en) * | 2020-11-30 | 2021-03-16 | 南通路远科技信息有限公司 | Battery with polymer shell |
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