CN211033600U - Lithium battery used for pole piece insulation packaging structure - Google Patents
Lithium battery used for pole piece insulation packaging structure Download PDFInfo
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- CN211033600U CN211033600U CN201922019733.0U CN201922019733U CN211033600U CN 211033600 U CN211033600 U CN 211033600U CN 201922019733 U CN201922019733 U CN 201922019733U CN 211033600 U CN211033600 U CN 211033600U
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- insulating
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- pole piece
- upper cover
- pole
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- 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
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Abstract
The utility model relates to the technical field of lithium batteries, in particular to a lithium battery used for a pole piece insulation packaging structure, which comprises a packaging box main body, an aluminum-plastic packaging film and an insulation layer, wherein the upper end of the packaging box main body is provided with an upper cover, the joint of the packaging box main body and the upper cover is provided with bolt through holes, fixing bolts are arranged in the bolt through holes, the upper end of the upper cover is provided with two groups of pole piece boxes, the inside of each pole piece box is provided with a pole lug fixing groove, the upper end of the inside of the upper cover is provided with an insulation piece fixing groove near the pole lug fixing groove, the inside of each insulation piece fixing groove and the inside of the packaging box main body are provided with the insulation layer, the inside of the insulation layer is provided with the aluminum-plastic packaging film, the middle part of the inside of the aluminum-, the whole effect is good, and stability and practicality are higher, have certain spreading value.
Description
Technical Field
The utility model relates to a lithium cell technical field specifically is a lithium cell is used for insulating packaging structure of pole piece.
Background
Because lithium battery packaging is softer, it is relatively poor to adjust utmost point ear, negative pole ear protectiveness, easily causes anodal ear, negative pole ear to damage during the transportation, and the external packaging insulating nature is relatively poor, easily causes the electric leakage short circuit, consequently needs a lithium cell to be used for pole piece insulation packaging structure to make the improvement to above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lithium cell is used for pole piece insulation packaging structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a lithium battery used for pole piece insulation packaging structure comprises a packaging box main body, an aluminum-plastic packaging film and an insulation layer, the upper end of the packaging box main body is provided with an upper cover, the joints of the packaging box main body and the upper cover are both provided with bolt through holes, the bolt through hole is internally provided with a fixed bolt, the upper end of the upper cover is provided with two groups of pole piece boxes, the pole piece boxes are internally provided with pole lug fixing grooves, an insulating sheet fixing groove is arranged at the upper end of the inner part of the upper cover and close to the lug fixing groove, insulating layers are arranged in the insulating sheet fixing groove and the packaging box main body, an aluminum-plastic packaging film is arranged inside the insulating layer, a diaphragm is arranged in the middle of the inside of the aluminum-plastic packaging film, the back of the diaphragm is provided with a positive electrode, one side of the back of the positive electrode is provided with a positive electrode lug, the basal plane of the diaphragm is provided with a negative electrode, the base plane one side of negative pole is equipped with the negative pole ear, positive pole ear and negative pole ear are close to aluminium-plastic packaging membrane upper end outside department and all overlap and are equipped with the insulating piece.
Preferably, the insulation sheet and the aluminum-plastic packaging film are connected by heating, sealing and bonding.
Preferably, the insulating layer, the packaging box body and the upper cover are connected in a heating, sealing and bonding mode.
Preferably, the positive electrode tab, the negative electrode tab, the insulating sheet and the tab fixing groove and the insulating sheet fixing groove are distributed correspondingly.
Preferably, the packaging box main body and the upper cover are connected through a bolt through hole and a fixing bolt, and the upper cover and the pole piece box are of an integrated structure.
Preferably, the positive electrode tab, the negative electrode tab and the insulating sheet are sleeved.
Preferably, the separator is a three-layer PE film.
Preferably, the insulating sheet and the insulating layer are made of black films.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, through the insulating piece that sets up, the insulating piece is the insulating part on positive tab and the negative pole ear, and insulating piece and insulating layer all adopt black film material, adopt the sealed bonding of heating to connect between insulating piece and the plastic-aluminum packaging film to can prevent the weeping through heating about 140 degrees with the sealed bonding of plastic-aluminum packaging film hot melt together during the encapsulation, black film material is three layer construction: the black pigment is formed by mixing and dissolving at a melting point of 66 ℃, PE, a melting point of 105 ℃, PP and a melting point of 137 ℃, and has the function of preventing short circuit between the positive electrode tab and the negative electrode tab and an aluminum-plastic packaging film when the lithium battery is packaged.
2. The utility model discloses in, through the insulating layer that sets up, insulating layer and packing carton main part, all adopt the bonding of heat seal to connect between the upper cover, then place packaged lithium battery main part inside packing carton main part and upper cover, because lithium battery package is softer, adjust positive electrode ear well, negative electrode ear protective property is relatively poor, easily cause positive electrode ear during the transportation, negative electrode ear damages, external packaging insulating property is relatively poor, easily cause the electric leakage short circuit, positive electrode ear, negative electrode ear, insulating piece and utmost point ear fixed slot, the insulating piece fixed slot is corresponding the distribution, make things convenient for the lithium cell location in the packing carton main part fixed, what the insulating layer is better insulates and keeps apart, packing carton main part and upper cover pass through bolt through-hole and fixing bolt and connect, upper cover and utmost point spool box formula structure as an organic whole, form the convenient insulating packaging structure who dismantle.
Drawings
FIG. 1 is an overall structure diagram of the present invention;
FIG. 2 is an internal structure view of the present invention;
fig. 3 is a top view of the insulating layer of the present invention.
In the figure: 1-packaging box main body, 2-upper cover, 3-pole piece box, 4-fixing bolt, 5-aluminum plastic packaging film, 6-positive pole lug, 7-negative pole lug, 8-insulating piece, 9-positive pole, 10-diaphragm, 11-negative pole, 12-insulating piece fixing groove, 13-pole lug fixing groove, 14-bolt through hole and 15-insulating layer.
Detailed Description
The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a lithium battery used for pole piece insulation packaging structure comprises a packaging box main body 1, an aluminum-plastic packaging film 5 and an insulating layer 15, wherein an upper cover 2 is arranged at the upper end of the packaging box main body 1, bolt through holes 14 are respectively formed at the joints of the packaging box main body 1 and the upper cover 2, fixing bolts 4 are installed in the bolt through holes 14, two groups of pole piece boxes 3 are arranged at the upper end of the upper cover 2, the packaging box main body 1 and the upper cover 2 are connected with the fixing bolts 4 through the bolt through holes 14, the upper cover 2 and the pole piece boxes 3 are of an integral structure, a pole lug fixing groove 13 is arranged inside the pole piece box 3, an insulating piece fixing groove 12 is arranged at the upper end inside the upper cover 2 close to the pole lug fixing groove 13, the insulating piece fixing groove and the packaging box main body 1 are respectively provided with the insulating layer 15, the packaging box main body 1 and, diaphragm 10 adopts the three-layer PE membrane, the diaphragm 10 back is equipped with anodal 9, anodal 9 back one side is equipped with anodal ear 6, diaphragm 10 base face is equipped with negative pole 11, negative pole 11 base face one side is equipped with negative pole ear 7, anodal ear 6 and negative pole ear 7 are close to the outside department of 5 upper ends of plastic-aluminum packaging film and all overlap and are equipped with insulating piece 8, insulating piece 8 and insulating layer 15 all adopt the black film material, anodal ear 6, cup joint between negative pole ear 7 and the insulating piece 8, adopt the bonding of heat seal to connect between insulating piece 8 and the plastic-aluminum packaging film 5, anodal ear 6, negative pole ear 7, insulating piece 8 and utmost point ear fixed slot 13, insulating piece.
The utility model discloses work flow: at first through the insulating piece 8 that sets up, insulating piece 8 is the insulating part on anodal ear 6 and the negative pole ear 7, and insulating piece 8 and insulating layer 15 all adopt black glue piece material, adopt the sealed bonding of heating to connect between insulating piece 8 and the plastic-aluminum packaging film 5 to can prevent the weeping with the sealed bonding of 5 hot melt of plastic-aluminum packaging film together about 140 degrees through heating during the encapsulation, black glue piece material is three layer construction: melanin, the melting point is 66 ℃, PE, the melting point is 105 ℃, PP and the melting point is 137 ℃, the black pigment is formed by mixing and dissolving, the black pigment has the functions of preventing the short circuit between the positive electrode tab 6 and the negative electrode tab 7 and the aluminum-plastic packaging film 5 when the lithium battery is packaged, the insulating layer 15, the packaging box main body 1 and the upper cover 2 are connected by adopting heating, sealing and bonding, then the packaged lithium battery main body is placed inside the packaging box main body 1 and the upper cover 2, because the lithium battery is packaged softer and has poor protection performance on the positive electrode tab and the negative electrode tab, the positive electrode tab 6 and the negative electrode tab 7 are easy to damage during transportation, the external packaging insulation performance is poor, the leakage short circuit is easy to cause, the positive electrode tab 6, the negative electrode tab 7, the insulating sheet 8, the tab fixing grooves 13 and the insulating sheet fixing grooves 12 are correspondingly distributed, packing carton main part 1 and upper cover 2 pass through bolt through-hole and fixed bolt connection, upper cover 2 and 3 formula structures as an organic whole of pole piece box, form the convenient insulating packaging structure who dismantles, the effectual security that improves the lithium cell, and diaphragm 10 between anodal 9 and the negative pole 11 adopts three-layer PE membrane, keep apart anodal 9 and negative pole 11 and make the electron in the lithium cell can not freely pass, let the ion in the electrolyte freely pass through between anodal 9 and negative pole 11, its effect of keeping apart anodal 9 and negative pole 11 makes the rising that the lithium cell can the limiting current under the condition of overcharge or temperature rising, prevent that the lithium cell short circuit from arousing the explosion, micropore self-closing guard action has, play safety protection's effect to lithium cell user and equipment, it is whole effectual, and stability and practicality are higher, certain spreading value has.
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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a lithium cell is used for pole piece insulation packaging structure, includes packing carton main part (1), plastic-aluminum packaging film (5) and insulating layer (15), its characterized in that: the packaging box is characterized in that an upper cover (2) is arranged at the upper end of a packaging box main body (1), bolt through holes (14) are formed in the joint of the packaging box main body (1) and the upper cover (2), fixing bolts (4) are installed in the bolt through holes (14), two groups of pole piece boxes (3) are arranged at the upper end of the upper cover (2), pole lug fixing grooves (13) are formed in the pole piece boxes (3), insulating piece fixing grooves (12) are formed in the upper end of the inner portion of the upper cover (2) close to the pole lug fixing grooves (13), insulating layers (15) are arranged in the insulating piece fixing grooves and the packaging box main body (1), an aluminum-plastic packaging film (5) is arranged in the insulating layers (15), a diaphragm (10) is arranged in the middle of the inner portion of the aluminum-plastic packaging film (5), an anode (9) is arranged on the back face, diaphragm (10) base face is equipped with negative pole (11), base face one side of negative pole (11) is equipped with negative pole ear (7), positive pole ear (6) and negative pole ear (7) are close to the outside department in plastic-aluminum packaging film (5) upper end and all overlap and are equipped with insulating piece (8).
2. The insulating packaging structure for the pole piece of the lithium battery as claimed in claim 1, wherein: the insulating sheet (8) and the aluminum-plastic packaging film (5) are connected by heating, sealing and bonding.
3. The lithium battery pole piece insulation packaging structure of claim 2, wherein: the insulating layer (15) is connected with the packaging box main body (1) and the upper cover (2) in a heating, sealing and bonding mode.
4. The insulating packaging structure for the pole piece of the lithium battery as claimed in claim 1, wherein: the positive tab (6), the negative tab (7), the insulating sheet (8), the tab fixing groove (13) and the insulating sheet fixing groove (12) are distributed correspondingly.
5. The insulating packaging structure for the pole piece of the lithium battery as claimed in claim 1, wherein: the packaging box is characterized in that the packaging box main body (1) is connected with the upper cover (2) through a bolt through hole (14) and a fixing bolt (4), and the upper cover (2) and the pole piece box (3) are of an integrated structure.
6. The insulating packaging structure for the pole piece of the lithium battery as claimed in claim 1, wherein: the positive electrode lug (6), the negative electrode lug (7) and the insulating sheet (8) are sleeved.
7. The insulating packaging structure for the pole piece of the lithium battery as claimed in claim 1, wherein: the diaphragm (10) adopts a three-layer PE film.
8. The insulating packaging structure for the pole piece of the lithium battery as claimed in claim 1, wherein: the insulating sheet (8) and the insulating layer (15) are made of black films.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922019733.0U CN211033600U (en) | 2019-11-21 | 2019-11-21 | Lithium battery used for pole piece insulation packaging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922019733.0U CN211033600U (en) | 2019-11-21 | 2019-11-21 | Lithium battery used for pole piece insulation packaging structure |
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| Publication Number | Publication Date |
|---|---|
| CN211033600U true CN211033600U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922019733.0U Active CN211033600U (en) | 2019-11-21 | 2019-11-21 | Lithium battery used for pole piece insulation packaging structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644351A (en) * | 2021-06-28 | 2021-11-12 | 广东嘉尚新能源科技有限公司 | Soft-package lithium battery core assembly capable of prolonging service life of battery cell and lithium battery cell manufacturing method |
| CN113955281A (en) * | 2021-09-06 | 2022-01-21 | 浙江野马电池股份有限公司 | Packaging method for improving high temperature and high humidity corrosion resistance of dry battery |
-
2019
- 2019-11-21 CN CN201922019733.0U patent/CN211033600U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644351A (en) * | 2021-06-28 | 2021-11-12 | 广东嘉尚新能源科技有限公司 | Soft-package lithium battery core assembly capable of prolonging service life of battery cell and lithium battery cell manufacturing method |
| CN113644351B (en) * | 2021-06-28 | 2023-03-24 | 广东嘉尚新能源科技有限公司 | Soft-package lithium battery core assembly capable of prolonging service cycle of battery cell and lithium battery cell manufacturing method |
| CN113955281A (en) * | 2021-09-06 | 2022-01-21 | 浙江野马电池股份有限公司 | Packaging method for improving high temperature and high humidity corrosion resistance of dry battery |
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