CN203026575U - Upper insulating plate of lithium battery in cylindrical structure - Google Patents
Upper insulating plate of lithium battery in cylindrical structure Download PDFInfo
- Publication number
- CN203026575U CN203026575U CN2012207164865U CN201220716486U CN203026575U CN 203026575 U CN203026575 U CN 203026575U CN 2012207164865 U CN2012207164865 U CN 2012207164865U CN 201220716486 U CN201220716486 U CN 201220716486U CN 203026575 U CN203026575 U CN 203026575U
- Authority
- CN
- China
- Prior art keywords
- insulation plate
- upper insulation
- main body
- lithium battery
- plate main
- 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.)
- Withdrawn - After Issue
Links
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model discloses an upper insulating plate of a lithium battery in a cylindrical structure. The upper insulating plate comprises an upper insulating plate main body, and is characterized in that the upper insulating plate main body is in an arch shape, and is provided with a central hole, and the upper part of the central hole is covered with a film; a cylindrical baffle is downward arranged along the periphery of the central hole, and a plurality of diffuse inclined hole sets are arranged in the upper insulating plate main body from the central hole to the outer edge of the upper insulating plate main body; each diffuse inclined hole set is formed by a plurality of diffuse inclined holes, and the sizes of the diffuse inclined holes are orderly enlarged from the central hole in the upper insulating plate main body to the outer edge of the upper insulating plate main body; and the lower part of the upper insulating plate main body is provided with a guide plate set formed by a plurality of guide plates, the guide plate set is arranged outside the cylindrical baffle, and an electrolyte passes through diffuse inclined hole sets to enter a cell of a lithium battery along the guide plate set in use. The upper insulating plate has the advantages that during the electrolyte injection of the cylindrical structure lithium battery of the upper insulating plate disclosed by the utility model, the electrolyte is uniformly absorbed, the absorption efficiency of the electrolyte is high, and the absorption problem of the electrolyte in the cell of the coiled cylindrical structure lithium battery is well improved and solved.
Description
Technical field
The utility model relates to the cylindrical structural lithium battery, is specifically related to a kind of upper insulation plate of cylindrical structural lithium battery.
Background technology
Along with the development of electronic technology and numeral science and technology, be the also constantly development thereupon of chemical power source product of its supply energy source.Lithium battery is a kind of as chemical power source, due to its have specific capacity high, can high power discharge, heavy-current discharge, electric performance stablity, the advantage such as the product adaptation environmental field is wide, storage life is long, be widely used in electronic product and digital product.
The manufacture craft that the lithium battery employing cylindrical structural of many types is arranged at present, it adopts sheet positive pole, sheet negative pole and the superimposed battery roll core (being battery core) that is wound into of diaphragm paper on internal structure, then put into box hat after battery core up and down insulation board of Ge Jia (being upper insulation plate and lower insulation plate), inject at last electrolyte and be assembled into battery.Battery plus-negative plate adopts the sheet winding-structure to have many good qualities, and such as anodal and negative pole employing sheet form, has effectively improved the response area of battery electrode, makes the battery can heavy-current discharge and high power discharge; Effectively improved the utilance of cell active materials; Manufacture craft is simple, is easy to automatic assembly line making etc.
There is the injection of electrolyte and absorbs inhomogeneous problem but the manufacture craft of the lithium battery of existing cylindrical structural is common.The structure of the lithium battery of existing cylindrical structural exists some to battery battery core electrolyte inside imbibition adverse influence factor: the upper insulation plate that current battery uses is all planar wafer with holes, upper insulation plate is pressed in the battery core upper end, tight with battery core upper end applying, battery core is reeled under certain tension force by positive pole, negative pole and the diaphragm paper of thinner thickness and is formed, anodal, negative pole and diaphragm paper three docile are tight, and the planar wafer structure with holes of upper insulation plate causes that the mobility of electrolyte is relatively poor is unfavorable for that electrolyte flows into and be penetrated into battery core inside from the battery core upper end; In winding-structure, general battery core middle part all can have one to pull out the centre bore that stays after the volume core, when electrolyte injects, electrolyte can flow to rapidly centre bore and flow to the housing bottom space, so most of electrolyte remains in battery container bottom and centre bore, can cause battery core top and battery core bottom imbibition inadequate, the inner imbibition of whole battery core is inhomogeneous.Above these unfavorable factors can directly affect the absorption of battery core electrolyte inside, easily cause the imbibition of battery battery core electrolyte inside bad, finally cause battery performance bad.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of upper insulation plate of cylindrical structural lithium battery, improves and solve the imbibition problem of coiled cylindrical structure lithium battery electrolytes.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of upper insulation plate of cylindrical structural lithium battery, comprise the upper insulation plate main body, described upper insulation plate main body is arch, and described upper insulation plate main body is provided with centre bore, and described centre bore top is covered with film; Along described centre bore circumferentially to having the tubular baffle plate, the outer rim from centre bore to the upper insulation plate main body on described upper insulation plate main body is provided with many group diffusion inclined hole groups; Every group of diffusion inclined hole group is made of a plurality of diffusion inclined holes, the outer rim from the centre bore of upper insulation plate main body to the upper insulation plate main body, and the size of diffusion inclined hole increases successively; The bottom of described upper insulation plate main body is provided with the baffler group that is made of a plurality of bafflers, and described baffler group is arranged on the outside of described tubular baffle plate, and during use, electrolyte stream enters in the battery core of lithium battery along the baffler group through many group diffusion inclined hole groups.
The upper surface of described upper insulation plate main body is shaped as sphere, tapered plane or step surface.
Described centre bore passes for positive pole ear of lithium battery, and described film is worn out for positive pole ear of lithium battery, and during use, positive pole ear of lithium battery passes described centre bore after wearing out described film.
The thickness of described film is 0.08mm ~ 0.20mm.
Baffler on described baffler group and the angle of vertical direction are 15 ° ~ 75 °.
The making material of described upper insulation plate main body is a kind of in polyvinyl chloride, poly-the third ethene, polypropylene, high density polyethylene (HDPE), low density polyethylene (LDPE), Merlon, PETG and nylon.
The manufacture craft of described upper insulation plate main body is injection mo(u)lding or hot-forming.
Centre bore top in upper insulation plate main body of the present utility model covers film, can seal centre bore, when electrolyte injects, this film can block electrolyte, make electrolyte mind-set periphery shunting from upper insulation plate, and flow to the upper insulation plate bottom along the baffler group by diffusion inclined hole group, flow to battery core, prevent that electrolyte from directly entering to battery bottom from the center orifice flow.
Along centre bore circumferentially to having the tubular baffle plate, when being used for preventing fluid injection, electrolyte is in upper insulation plate bottom inflow battery core centre bore, thereby guarantee that electrolyte first concentrates in space between upper insulation plate bottom and battery core top, then to battery core internal flow and infiltration, push simultaneously the battery core internal gas and flow to centre bore, like this, just formed the passage of electrolyte flow, infiltration and absorption, made electrolyte fully be deep into battery core inside from coiling.
Outer rim from centre bore to the upper insulation plate main body on the upper insulation plate main body is provided with many group diffusion inclined hole groups, every group of diffusion inclined hole group is made of a plurality of diffusion inclined holes, outer rim from the centre bore of upper insulation plate main body to the upper insulation plate main body, the size of diffusion inclined hole increases successively, the electrolyte that is beneficial to from the centre bore injection that is designed with like this flows to the outer rim of insulation board main body more, and flow into the battery core upper surface from outer rim rapidly.
The bottom of upper insulation plate main body is provided with the baffler group in the outside of tubular baffle plate, can shunt the electrolyte that flows into by diffusion inclined hole group, it is uniformly dispersed, electrolyte is flowed toward the peripheral direction of upper insulation plate main body as far as possible, and then flow from past battery core middle part, battery core top, increase mobile distance and the time of electrolyte, to improve the absorption efficiency of electrolyte.
compared with prior art, the utility model has the advantage of: use the cylindrical structural lithium battery of the utility model upper insulation plate when carrying out injecting electrolytic solution, the film that centre bore top covers blocks electrolyte, make electrolyte mind-set periphery shunting from upper insulation plate, and flow to the upper insulation plate bottom along the baffler group by diffusion inclined hole group, flow to battery core, simultaneously along centre bore circumferentially to having the tubular baffle plate, when preventing fluid injection, electrolyte is in upper insulation plate bottom inflow battery core centre bore, thereby guarantee that electrolyte first concentrates in space between upper insulation plate bottom and battery core top, then to battery core internal flow and infiltration, and extruding battery core internal gas flows to centre bore, like this, just formed electrolyte flow, infiltration and the passage that absorbs, make electrolyte fully be deep into battery core inside from coiling, uniform absorption and the absorption efficiency of electrolyte are high, improve well and solved the absorption problem of coiled cylindrical structure lithium battery electric core electrolyte inside.
Description of drawings
Fig. 1 is the front section view of the utility model embodiment cylindrical structural lithium battery upper insulation plate;
Fig. 2 is the vertical view of the utility model embodiment cylindrical structural lithium battery upper insulation plate;
Fig. 3 is the application schematic diagram of the utility model embodiment cylindrical structural lithium battery upper insulation plate.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
In the present embodiment, upper insulation plate of the present utility model is applied to 14500 type cylindrical structural lithium batteries of takeup type battery core.
Adopt injection molding process that nylon material is made into upper insulation plate, its structure as shown in the figure, this upper insulation plate comprise be arch, surface configuration is the upper insulation plate main body 1 of sphere, upper insulation plate main body 1 is provided with the centre bore 2 that passes for positive pole ear of lithium battery 8, and centre bore 2 tops are covered with the film 3 of wearing out for positive pole ear of lithium battery 8; Along centre bore 2 circumferentially to having tubular baffle plate 4, the outer rim from centre bore 2 to upper insulation plate main body 1 on upper insulation plate main body 1 is provided with many group diffusion inclined hole groups 5; Every group of diffusion inclined hole group 5 is made of a plurality of diffusion inclined holes 51, the outer rim from the centre bore 2 of upper insulation plate main body 1 to upper insulation plate main body 1, and the size of diffusion inclined hole 51 increases successively; The bottom of upper insulation plate main body 1 is provided with the baffler group 6 that is made of a plurality of bafflers 61, and baffler group 6 is arranged on the outside of tubular baffle plate 4, and during use, electrolyte stream enters in the battery core 7 of lithium battery along baffler group 6 through many group diffusion inclined hole groups 5.
The manufacture craft of upper insulation plate main body 1 is injection mo(u)lding; The external diameter of upper insulation plate main body 1 is 13.5mm, the height of the sphere of upper insulation plate main body 1 is 1.5mm, the aperture of centre bore 2 is 4mm, and the thickness of the film 3 that centre bore 2 tops cover is 0.12mm, and the baffler on baffler group 6 and the angle of vertical direction are 28 °.
As shown in Figure 3, when electrolyte injects from battery core 7 centers tops, electrolyte spreads to its outer rim rapidly from the center of upper insulation plate main body 1, and flow to battery core 7 tops by diffusion inclined hole group 5,, when flowing downward, diffusion inclined hole group 5 shunts by the baffler group 6 change flow directions and flow velocity in electrolyte stream.In addition, by controlling injection rate and the flow of electrolyte, can form the drip of electrolyte on baffler group 6, be more conducive to electrolyte by battery core 7 tops to battery core 7 diffusion inside and infiltration.
When electrolyte flow behind battery core 7 tops, the tubular baffle plate 4 that circumferentially arranges downwards along centre bore can block electrolyte, prevent that electrolyte from flowing to battery core 7 centre bores, make electrolyte rest on battery core 7 tops, effect due to pressure differential, the air of battery core 7 inside is extruded and flows to the central hole location of battery core 7, and then electrolyte will progressively be penetrated into battery core 7 inside, thereby improves infiltration and the absorption efficiency of battery core 7 electrolyte inside.
Claims (7)
1. the upper insulation plate of a cylindrical structural lithium battery, comprise the upper insulation plate main body, it is characterized in that: described upper insulation plate main body is arch, and described upper insulation plate main body is provided with centre bore, and described centre bore top is covered with film; Along described centre bore circumferentially to having the tubular baffle plate, the outer rim from centre bore to the upper insulation plate main body on described upper insulation plate main body is provided with many group diffusion inclined hole groups; Every group of diffusion inclined hole group is made of a plurality of diffusion inclined holes, the outer rim from the centre bore of upper insulation plate main body to the upper insulation plate main body, and the size of diffusion inclined hole increases successively; The bottom of described upper insulation plate main body is provided with the baffler group that is made of a plurality of bafflers, and described baffler group is arranged on the outside of described tubular baffle plate, and during use, electrolyte stream enters in the battery core of lithium battery along the baffler group through many group diffusion inclined hole groups.
2. the upper insulation plate of a kind of cylindrical structural lithium battery according to claim 1, it is characterized in that: the upper surface of described upper insulation plate main body is shaped as sphere, tapered plane or step surface.
3. the upper insulation plate of a kind of cylindrical structural lithium battery according to claim 1, it is characterized in that: described centre bore passes for positive pole ear of lithium battery, described film is worn out for positive pole ear of lithium battery, and during use, positive pole ear of lithium battery passes described centre bore after wearing out described film.
4. the upper insulation plate of a kind of cylindrical structural lithium battery according to claim 1, it is characterized in that: the thickness of described film is 0.08mm ~ 0.20mm.
5. the upper insulation plate of a kind of cylindrical structural lithium battery according to claim 1, it is characterized in that: the baffler on described baffler group and the angle of vertical direction are 15 ° ~ 75 °.
6. the upper insulation plate of the described a kind of cylindrical structural lithium battery of any one according to claim 1 ~ 5 is characterized in that: the making material of described upper insulation plate main body is a kind of in polyvinyl chloride, poly-the third ethene, polypropylene, high density polyethylene (HDPE), low density polyethylene (LDPE), Merlon, PETG and nylon.
7. the upper insulation plate of a kind of cylindrical structural lithium battery according to claim 6, it is characterized in that: the manufacture craft of described upper insulation plate main body is injection mo(u)lding or hot-forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207164865U CN203026575U (en) | 2012-12-21 | 2012-12-21 | Upper insulating plate of lithium battery in cylindrical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207164865U CN203026575U (en) | 2012-12-21 | 2012-12-21 | Upper insulating plate of lithium battery in cylindrical structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026575U true CN203026575U (en) | 2013-06-26 |
Family
ID=48650532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207164865U Withdrawn - After Issue CN203026575U (en) | 2012-12-21 | 2012-12-21 | Upper insulating plate of lithium battery in cylindrical structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026575U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066233A (en) * | 2012-12-21 | 2013-04-24 | 中银（宁波）电池有限公司 | Upper insulating plate of cylindrical-structured lithium battery |
| CN107706334A (en) * | 2017-10-09 | 2018-02-16 | 惠州亿纬锂能股份有限公司 | A kind of soft-package battery |
-
2012
- 2012-12-21 CN CN2012207164865U patent/CN203026575U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066233A (en) * | 2012-12-21 | 2013-04-24 | 中银（宁波）电池有限公司 | Upper insulating plate of cylindrical-structured lithium battery |
| CN103066233B (en) * | 2012-12-21 | 2015-09-16 | 中银（宁波）电池有限公司 | A kind of upper insulation plate of cylindrical structural lithium battery |
| CN107706334A (en) * | 2017-10-09 | 2018-02-16 | 惠州亿纬锂能股份有限公司 | A kind of soft-package battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103066233B (en) | A kind of upper insulation plate of cylindrical structural lithium battery | |
| CN217086821U (en) | Cylindrical roll core bottom liquid suction structure and cylindrical battery | |
| CN208848999U (en) | Plastic cement part flow arrangement under a kind of lithium battery structure part | |
| CN108539113A (en) | Secondary battery of soft package lug and its secondary battery of soft package | |
| CN203026575U (en) | Upper insulating plate of lithium battery in cylindrical structure | |
| CN202503037U (en) | Flexible package polymer lithium cell and aluminum plastic film pit structure thereof | |
| CN205248365U (en) | Battery sheet roll -in device and battery sheet | |
| CN204375844U (en) | The battery of high-energy-density | |
| CN204760490U (en) | Lithium ion battery cell is used to basic station of soft -packing polymer | |
| CN204424326U (en) | Spiral squeezing type cylindricality lithium ion battery | |
| CN203895566U (en) | Cylindrical flexibly-packaged lithium titanate battery | |
| CN206921926U (en) | A kind of new type lithium ion battery | |
| CN202308197U (en) | Polymer lithium ion battery with internal multi-winding-core parallel structure | |
| CN204927434U (en) | Square power soft package lithium ion battery | |
| CN202333060U (en) | Lithium battery | |
| CN211295154U (en) | Steel shell cylindrical lithium ion battery capable of being opened | |
| CN203607486U (en) | Storage battery grid | |
| CN202695597U (en) | Lithium battery structure | |
| CN202678420U (en) | Flexibly packed lithium ion battery | |
| CN205723652U (en) | A kind of dipole column lithium battery cover plate | |
| CN205355142U (en) | Novel lithium cell pole piece | |
| CN205141074U (en) | Positive plate and nickel -hydrogen battery for nickel -hydrogen battery | |
| CN203277559U (en) | Lead-acid battery | |
| CN205236310U (en) | Pole piece coating unit | |
| CN218005134U (en) | Plastic structure, power battery top cap and power battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130626 Effective date of abandoning: 20150916 |
|
| RGAV | Abandon patent right to avoid regrant |