CN217035890U - Cylindrical upper insulating plate for lithium battery - Google Patents
Cylindrical upper insulating plate for lithium battery Download PDFInfo
- Publication number
- CN217035890U CN217035890U CN202220395552.7U CN202220395552U CN217035890U CN 217035890 U CN217035890 U CN 217035890U CN 202220395552 U CN202220395552 U CN 202220395552U CN 217035890 U CN217035890 U CN 217035890U
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- CN
- China
- Prior art keywords
- insulating plate
- insulation board
- upper insulating
- board body
- electrolyte
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 21
- 238000009413 insulation Methods 0.000 claims abstract description 34
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- -1 polypropylene Polymers 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical group ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 abstract description 25
- 238000005096 rolling process Methods 0.000 abstract description 11
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a cylindrical upper insulating plate for a lithium battery, which comprises an upper insulating plate body, wherein a center hole is formed in the center of the upper insulating plate body, a rubber plug is filled in the center hole, the top of the rubber plug is a spherical curved surface, the diameter of the rubber plug is larger than that of the center hole, and protruding rings are arranged at the peripheral edge of the upper surface of the upper insulating plate body. This insulation board, set up protruding ring through the upper surface at last insulation board body, enclose last insulation board body into a shallow container that can contain electrolyte, when watering electrolyte, electrolyte injection flow is greater than the water yield of inclined hole, thereby each position of rolling up a core terminal surface is fallen with the electrolyte stream by a plurality of inclined holes, prevent only from rolling up the quick downflow in middle part of core, the degree of depth of chute is outwards diffusion formula increase progressively simultaneously, it flows to all around from the middle part of rolling up a core terminal surface to be convenient for electrolyte, cooperation rubber plug and central jam, can realize that electrolyte evenly absorbs, thereby ensure battery quality.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a cylindrical upper insulating plate for a lithium battery.
Background
With the rapid development of the electronic industry and the information industry, people have higher and higher requirements on power supplies of various electrical appliances. Cylindrical lithium ion batteries are used as high-energy power sources in a variety of mobile devices, such as mobile phones, digital cameras, notebook computers, and portable power tools.
The cylindrical lithium battery belongs to one of lithium batteries, and is characterized in that a flaky positive electrode, a flaky negative electrode and diaphragm paper are overlapped on the internal structure of the cylindrical lithium battery to be wound into a battery winding core (namely, a battery core), then an insulating plate (namely, an upper insulating plate and a lower insulating plate) is respectively added above and below the battery core, then a steel shell is placed in the steel shell, and finally electrolyte is injected to assemble the battery.
At present, the present last insulation board is the plastics disk mostly, and the surface sets up the electrode hole, wholly is the plane, and during later stage injection electrolyte, electrolyte directly got into the bottom of electric core through the centre bore at electric core middle part easily, only has few electrolysis infiltration to advance inside the body of rolling up the core, leads to rolling up the inside electrolyte of core to absorb inhomogeneous easily, finally leads to the battery performance bad.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a cylindrical upper insulating plate for a lithium battery to solve the problems suggested in the above background art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a cylindrical upper insulation board for lithium cell, includes the upper insulation board body, the centre of a circle department of upper insulation board body has seted up the centre of a circle hole, the inside packing in centre of a circle hole has the rubber end cap, and the top of rubber end cap is spherical curved surface, and the diameter is greater than the diameter in centre of a circle hole, the edge all around of upper insulation board body upper surface is provided with protruding ring, the surface of upper insulation board body is provided with the multiunit inclined hole, and the incline direction in inclined hole is the slope all around of the centre of a circle upper insulation board body, and the inclined hole runs through the upper insulation board body and extends to its lower surface.
Preferably, the lower surface of the rubber plug is fixedly connected with a central plug.
Preferably, the inclined holes are distributed on the upper surface of the upper insulating plate body in six groups in total, and the six groups of inclined holes are circumferentially and equidistantly distributed by taking the central hole as a reference.
Preferably, the number of the inclined holes in each group is three, and the distances between the three inclined holes and the central hole are gradually increased outwards.
Preferably, the upper insulating plate body is made of one of vinyl chloride, polypropylene and polypropylene.
Preferably, the lower surface of the upper insulating plate body is provided with a plurality of chutes, the positions of the chutes correspond to the positions of each group of inclined holes, the chutes are communicated with each group of three inclined holes, and the depths of the chutes are increased in an outward diffusion mode by taking the central holes as references.
Advantageous effects
The utility model provides a cylindrical upper insulating plate for a lithium battery, which has the following beneficial effects:
this insulation board on cylindrical for lithium cell, upper surface through last insulation board body sets up protruding ring, will go up the insulation board body and enclose into a shallow container that can contain electrolyte, when watering electrolyte, the electrolyte injection flow is greater than the water yield of inclined hole, thereby each position of rolling up a core terminal surface is fallen with the electrolyte stream by a plurality of inclined holes, prevent only from the middle part of rolling up a core fast downflow, the degree of depth of chute is outwards diffusion formula increase progressively simultaneously, be convenient for electrolyte from rolling up the middle part of core terminal surface and flowing all around, cooperation rubber plug and central jam, can realize that electrolyte evenly absorbs, thereby ensure battery quality.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic top surface structure of the present invention;
FIG. 3 is a schematic view of the lower surface structure of the present invention;
FIG. 4 is a diagram showing a use state of the present invention.
In the figure: the structure comprises an upper insulation board body 1, a central hole 2, a rubber plug 3, a raised ring 4, an inclined hole 5, a central plug 6 and an inclined groove 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a cylindrical upper insulating plate for lithium cell, includes upper insulating plate body 1, goes up insulation plate body 1's centre of a circle department and has seted up centre of a circle hole 2, and the inside packing in centre of a circle hole 2 has rubber end cap 3, and the top of rubber end cap 3 is spherical curved surface, and the diameter is greater than the diameter in centre of a circle hole 2, and the lower fixed surface of rubber end cap 3 is connected with central jam 6.
The edge all around of going up insulation board body 1 upper surface is provided with protruding ring 4, and the surface of going up insulation board body 1 is provided with multiunit inclined hole 5, and the incline direction of inclined hole 5 is the slope all around of the centre of a circle of going up insulation board body 1 to the insulation board body 1, and inclined hole 5 runs through insulation board body 1 and extends to its lower surface.
The inclined holes 5 are six groups in total, the six groups of inclined holes 5 are circumferentially and equidistantly distributed on the upper surface of the upper insulating plate body 1 by taking the central hole 2 as a reference, the number of each group of inclined holes 5 is three, and the distance between each three inclined hole 5 and the central hole 2 is gradually increased outwards.
Go up insulation board body 1's material for one in chloroethylene, polyethylene propylene and the polypropylene, go up insulation board body 1's lower surface and seted up a plurality of chutes 7, the position of chute 7 all corresponds with the position of every group inclined hole 5, and chute 7 is linked together with the three inclined hole 5 of every group, and the degree of depth of chute 7 uses centre of a circle hole 2 as the benchmark outwards diffusion formula to increase progressively.
This cylindrical upper insulating plate for lithium cell, through set up protruding ring 4 on the upper surface of upper insulating plate body 1, enclose upper insulating plate body 1 into a shallow container that can contain electrolyte, when watering electrolyte, electrolyte injection flow is greater than the water yield of inclined hole 5, thereby fall the electrolyte to each position of rolling up a core terminal surface by a plurality of inclined holes 5, prevent only from the middle part of rolling up a core fast downflow, the degree of depth of chute 7 is outwards diffused progressively increased simultaneously, be convenient for electrolyte from the middle part of rolling up a core terminal surface to flowing all around, cooperation rubber plug 3 and central jam 6, can realize that electrolyte evenly absorbs, thereby ensure battery quality.
The working principle is as follows: when processing and this lithium cell is with cylindrical last insulation board of production, can adopt upper and lower combination formula injection mold, disposable injection moulding, wherein, rubber end cap 3 blocks up 6 formula designs as an organic whole with the center, also can adopt integrated into one piece, make up rubber end cap 3 and last insulation board body 1 and use, should go up the insulation board, inclined hole 5 through a plurality of different positions that lie in, come to carry out the drainage to electrolyte, and utilize the center to block up 6 shutoff electric core's centre bore, as shown in fig. 4, thereby realize the even interpolation and the absorption of electrolyte, prevent that electrolyte from piling up in the bottom of battery, improve the battery quality, thereby reduce the defective rate.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an insulating board on cylindrical for lithium cell, includes upper insulation board body (1), its characterized in that: go up the centre of a circle department of insulation board body (1) and seted up central hole (2), the inside packing in central hole (2) has rubber end cap (3), and the top of rubber end cap (3) is spherical curved surface, and the diameter is greater than the diameter in central hole (2), the edge all around of going up insulation board body (1) upper surface is provided with protruding ring (4), the surface of going up insulation board body (1) is provided with multiunit inclined hole (5), and the incline direction of inclined hole (5) is by the slope all around of the centre of a circle of last insulation board body (1) to last insulation board body (1), and inclined hole (5) run through insulation board body (1) and extend to its lower surface.
2. The cylindrical upper insulating plate for a lithium battery as claimed in claim 1, wherein: the lower surface of the rubber plug (3) is fixedly connected with a central plug (6).
3. The cylindrical upper insulating plate for a lithium battery as claimed in claim 1, wherein: the inclined holes (5) are divided into six groups, and the six groups of inclined holes (5) are circumferentially and equidistantly distributed on the upper surface of the upper insulating plate body (1) by taking the central hole (2) as a reference.
4. The cylindrical upper insulating plate for a lithium battery as claimed in claim 2, wherein: the number of the inclined holes (5) in each group is three, and the distances between the three inclined holes (5) and the central hole (2) are gradually increased outwards.
5. The cylindrical upper insulating plate for a lithium battery as claimed in claim 1, wherein: the upper insulating plate body (1) is made of one of chloroethylene, polypropylene and polypropylene.
6. The cylindrical upper insulating plate for a lithium battery as claimed in claim 1, wherein: go up the lower surface of insulation board body (1) and seted up a plurality of chutes (7), the position of chute (7) all corresponds with the position of every group inclined hole (5), chute (7) are linked together with three inclined hole (5) of every group, and the degree of depth of chute (7) uses central hole (2) to increase progressively as the outside diffusion formula of benchmark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220395552.7U CN217035890U (en) | 2022-02-25 | 2022-02-25 | Cylindrical upper insulating plate for lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220395552.7U CN217035890U (en) | 2022-02-25 | 2022-02-25 | Cylindrical upper insulating plate for lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035890U true CN217035890U (en) | 2022-07-22 |
Family
ID=82451565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220395552.7U Active CN217035890U (en) | 2022-02-25 | 2022-02-25 | Cylindrical upper insulating plate for lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217035890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116454498A (en) * | 2023-06-16 | 2023-07-18 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
-
2022
- 2022-02-25 CN CN202220395552.7U patent/CN217035890U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116454498A (en) * | 2023-06-16 | 2023-07-18 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116454498B (en) * | 2023-06-16 | 2023-08-15 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A cylindrical upper insulation plate for lithium batteries Granted publication date: 20220722 Pledgee: China Construction Bank Corporation Ningguo sub branch Pledgor: Ningguo Guanning Electrical Appliance Co.,Ltd. Registration number: Y2024980010080 |