CN113285181A - High-temperature-ineffectible tab and manufacturing method thereof - Google Patents
High-temperature-ineffectible tab and manufacturing method thereof Download PDFInfo
- Publication number
- CN113285181A CN113285181A CN202110528691.2A CN202110528691A CN113285181A CN 113285181 A CN113285181 A CN 113285181A CN 202110528691 A CN202110528691 A CN 202110528691A CN 113285181 A CN113285181 A CN 113285181A
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- tab
- melting
- glue
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 131
- 238000002844 melting Methods 0.000 claims abstract description 83
- 230000008018 melting Effects 0.000 claims abstract description 62
- 229910052751 metal Inorganic materials 0.000 claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 42
- 239000000853 adhesive Substances 0.000 claims description 39
- 230000001070 adhesive effect Effects 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 238000013329 compounding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000000084 colloidal system Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 239000002985 plastic film Substances 0.000 claims 1
- 229920006255 plastic film Polymers 0.000 claims 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 13
- 229910052744 lithium Inorganic materials 0.000 description 13
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 229920005672 polyolefin resin Polymers 0.000 description 9
- 238000007789 sealing Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The application discloses a high-temperature failed tab and a manufacturing method thereof, wherein the high-temperature failed tab comprises a metal sheet and tab glue embedded on two sides of the metal sheet, the tab glue at least comprises an inner low-melting-point glue and a high-melting-point glue, two sides of the metal sheet are respectively thermally sealed by the inner low-melting-point glue of the tab glue, the melting point of the inner low-melting-point glue is below 135 ℃, the melting point of the high-melting-point glue is 145-165 ℃, and the high-melting-point glue of each tab glue is compounded on the other side of the inner low-melting-point glue.
Description
Technical Field
The invention relates to a tab, in particular to a tab capable of failing at high temperature and a manufacturing method thereof.
Background
The tab is widely used in the field of lithium batteries. The tab is generally composed of a metal sheet and a tab adhesive adhered to a surface of the metal sheet. The melting point of tab glue adopted by the conventional tab on the current market is above 140 ℃, and when the battery discharges at a high rate, the temperature of the surface of the battery is increased, and the temperature of a metal sheet in the tab is correspondingly increased. The battery also expands, causing explosion risk when reaching a certain temperature and pressure.
The current tab glue comprises white glue, black glue, yellow glue and single-layer glue. The heat sealing temperature of the white glue is between 150 and 180 ℃, which is slightly lower than the battery packaging temperature (180 to 220 ℃). Since the heat-sealing temperature of the white paste is close to that of the battery package, the metal layer is deformed during heat-sealing, and thus, a short circuit is easily caused. The black glue has a plurality of interfaces, and can be delaminated and peeled after being soaked in the electrolyte of the battery, and the interfaces are unstable. Due to the PP layer technology, the yellow glue becomes extremely hard after heat sealing, loses flexibility and is extremely easy to break in the later stage of packaging. The single-layer adhesive has a narrow heat-sealing temperature range, which is not beneficial to packaging of the battery.
In order to provide a wide heat sealing temperature range for the tab, the conventional tab jelly is implemented in multiple layers, such as three or five layers. However, the softening temperature of the existing tab glue is higher than 140 ℃, and after the tab glue is embedded with the metal sheet, gas can be generated in the battery along with the rise of the later environmental temperature, and if the gas cannot be exhausted in time, the existing lithium battery is easy to explode.
Disclosure of Invention
One advantage of the present invention is to provide a tab capable of failing at a high temperature and a method for manufacturing the same, wherein the tab capable of failing at a high temperature is capable of failing to be separated from a metal sheet in the tab before an ambient temperature reaches 130 ℃, so that an expanded gas can be exhausted at a low temperature of less than 130 ℃ to prevent explosion of a lithium battery mounted with the tab.
An advantage of the present invention is to provide a tab that can fail at high temperature and a method for manufacturing the same, wherein the tab includes a tab adhesive and a metal sheet, wherein the tab adhesive has a wide heat sealing temperature range, thereby enabling the tab to be used in lithium batteries of various electronic or electrical devices.
Another advantage of the present invention is to provide a tab that can fail at high temperature and a method for manufacturing the same, wherein the tab of the tab is simple in manufacturing process and suitable for being widely used.
Another advantage of the present invention is to provide a tab capable of failing at a high temperature and a method for manufacturing the same, wherein the tab glue of the tab maintains a certain flexibility under the condition of a good bonding strength with the metal sheet, thereby preventing the lithium battery provided with the tab from being broken due to too hard in a process after the lithium battery is packaged.
To achieve at least one of the above advantages, the present invention provides a high temperature failed tab, including:
a metal sheet;
and the tab glue is embedded on two sides of the metal sheet and at least comprises an inner low-melting point glue and a high-melting point glue, the two sides of the metal sheet are respectively thermally sealed by the inner low-melting point glue of the tab glue, the melting point of the inner low-melting point glue is below 135 ℃, the melting point of the high-melting point glue is 145-165 ℃, and the high-melting point glue of each tab glue is compounded on the other side of the inner low-melting point glue.
According to an embodiment of the invention, the total thickness of the tab at one side of the metal sheet is 50 μm to 80 μm.
According to an embodiment of the present invention, the thickness of the high melting point glue is 25 μm to 55 μm.
According to an embodiment of the present invention, the thickness of the inner low melting point adhesive is 9 μm to 20 μm.
According to an embodiment of the present invention, the melting point of the inner low melting point dispensing is implemented to be between 125 ℃ and 135 ℃.
According to an embodiment of the invention, the metal sheet is implemented as a foil made of a metal or a metal alloy.
According to an embodiment of the present invention, the tab glue includes an outer low melting point glue, the melting point of the outer low melting point glue is below 135 ℃, and the outer low melting point glue is heat sealed at the other side of the high melting point glue.
According to an embodiment of the present invention, the outer low-melt adhesive is implemented as the same material as the inner low-melt adhesive.
In order to achieve at least one of the above advantages, the present invention provides a method for manufacturing a tab, wherein the method for manufacturing the tab includes the following steps:
s1: respectively melting and plasticizing the inner low-melting-point adhesive, the high-melting-point adhesive and the outer low-melting-point adhesive;
s2, preserving the colloid in the molten state formed in the step S1 by preserving heat for a predetermined time;
s3, extruding the inner low-melting-point adhesive, the high-melting-point adhesive and the outer low-melting-point adhesive through an extruding device such as an extruder;
s4, cooling the extruded melt to form a tab glue for standby; and
and S5, thermally compounding the tab glue on a metal sheet to form the tab.
According to an embodiment of the present invention, the method for manufacturing the tab includes the following steps:
and cutting the tab glue before thermally compounding the tab glue on the metal sheet.
Drawings
Fig. 1 shows a cross-sectional view of a tab according to the present invention.
Fig. 2 shows a cross-sectional view of tab glue of the tab of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Referring to fig. 1 to 2, a tab capable of failing at high temperature according to a preferred embodiment of the present invention and a method for manufacturing the same will be described in detail below, wherein the tab can be installed in a lithium battery, and the tab can automatically fail when the temperature of the lithium battery is raised to be higher than 130 ℃ for a predetermined time during the operation of the lithium battery, so as to prevent the lithium battery from exploding due to pyrolysis and gas generation.
Specifically, the tab includes a metal sheet 10 and a tab glue 20 embedded on both sides of the metal sheet 10. The tab glue comprises at least two layers, that is, the tab glue 20 comprises at least one inner low melting point glue 21 and one high melting point glue 22.
Specifically, the two sides of the metal sheet 10 are respectively heat sealed by the inner low melting point adhesive 21, so as to prevent the metal sheet 10 from contacting with an external conductor to cause short circuit.
It is worth mentioning that the melting point of the inner low melting point glue 21 of the tab glue 20 is below 135 ℃. Therefore, when the environment temperature of the tab is higher than 130 ℃, the inner low melting point glue 21 of the tab glue 20 will melt, so that the inner low melting point glue 21 is separated from the surface of the metal sheet 10. Therefore, when the tab is applied to a lithium battery, the internal low melting point adhesive 21 in the tab glue 20 can be peeled off from the metal sheet 10 when the ambient temperature of the lithium battery is higher than 130 ℃, and therefore, gas generated at high temperature can escape from the gap formed between the internal low melting point adhesive 21 and the metal sheet 10 by peeling, thereby effectively preventing explosion of the lithium battery.
Preferably, the inner low melting point glue 21 is implemented to be formed of a modified polyolefin resin. The high melting point dots 22 are implemented to be made of polyolefin resin.
Also preferably, the melting point of the inner low melting point glue 21 is implemented between 125 ℃ and 135 ℃. And the thickness of the inner low-melting point glue 21 is 9-20 μm. The metal sheet 10 is implemented as a sheet made of metal or metal alloy, such as aluminum nickel or the like. It should be noted that, with such an arrangement, when the inner low-melting-point glue 21 is packaged in the metal sheet 10, the inner low-melting-point glue 21 can be well adhered to the surface of the metal sheet 10. In addition, when the thickness of the inner low-melting point glue 21 is 9 μm to 20 μm, the flexibility of the inner low-melting point glue 21 is better, so as to prevent the tab from being too hard after the inner low-melting point glue 21 is cured.
In addition, in order to provide the tab with good flexibility and strength, the total thickness of the tab at one side of the metal sheet 10 is 50 to 80 μm. Further, the melting point of the high melting point glue 22 is implemented to be 145-165 ℃ and the thickness is 25-55 μm. With such an arrangement, the tab glue 20 has a suitable strength, so that the tab can be kept stable when the ambient temperature of the tab glue 20 is higher than the melting point of the inner low melting point glue 21 and lower than the melting point of the high melting point glue 22.
Further, the tab glue 20 further includes an outer low melting point glue 23. The outer low melt point 23 is heat sealed to one side of the high melt point 22. That is, the inner low-melting-point glue 21 and the outer low-melting-point glue 23 are respectively located at two sides of the high-melting-point glue 22.
Preferably, the outer low-melt glue 23 is implemented in the same material as the inner low-melt glue 21. That is, the melting point of the outer low melting point glue 23 is relatively lower than the melting point of the high melting point glue 22.
According to another aspect of the invention. The invention also provides a manufacturing method of the tab glue, wherein the manufacturing method of the tab glue comprises the following steps:
s1: respectively melting and plasticizing the inner low-melting-point adhesive, the high-melting-point adhesive and the outer low-melting-point adhesive;
s2, preserving the colloid in the molten state formed in the step S1 by preserving heat for a predetermined time;
s3, extruding the inner low-melting-point adhesive, the high-melting-point adhesive and the outer low-melting-point adhesive through an extruding device such as an extruder;
s4, cooling the extruded melt to form a tab glue for standby; preferably, the extruded melt is cooled by a cooling roll to form a tab glue to be used.
It is worth mentioning that the tab glue is formed by cutting, so that the tab glue body can form the tab glue with a preset size.
More particularly, the tab can be formed by thermally compounding the cut tab adhesive with the metal sheet 10.
Example 1:
the melting points of the inner low-melting-point glue 21 and the outer low-melting-point glue 23 and the melting point of the high-melting-point glue 22 are 135 ℃ and 162 ℃, respectively, the thickness ratio of the inner low-melting-point glue 21 to the outer low-melting-point glue to the high-melting-point glue 22 is 1:4:1, and the total thickness is 55 μm.
The thicknesses of the inner low-melting point glue 21 and the outer low-melting point glue 23 are both 9 mu m.
The high melting point adhesive 22 is polyolefin resin and has a thickness of 37 mu m.
The preparation method of the tab comprises the following steps:
step 1: and respectively adding the inner low-melting-point glue 21 and the outer low-melting-point glue 23 into the high-melting-point glue 22 through feed ports of three extruders, and performing high-temperature melting and plasticizing.
Step 2: the molten resin is passed through a section of holding zone to make the melt temperature uniform.
And step 3: and casting the resin melt passing through the heat preservation zone from a die head of an extruder, wherein the low-melting-point modified resin is respectively positioned at two sides of the high-melting-point adhesive 22.
And 4, step 4: and (4) casting from a die head, and cooling by a cooling roller to form a film.
And 5: the produced tab rubber mother material is split into specified widths.
Step 6: the cut tab glue and the metal sheet 10 are made into the tab in a thermal compounding mode.
Example 2:
the melting points of the inner low-melting point glue 21 and the outer low-melting point glue 23 and the melting point of the high-melting point glue 22 are 125 ℃ and 162 ℃, respectively, the thickness ratio is 1:4:1, and the total thickness is 80 μm.
The thickness of the inner low-melting point glue 21 of the modified polyolefin resin and the thickness of the outer low-melting point glue 23 of the modified polyolefin resin are both 13.3 mu m.
The high melting point adhesive 22 is polyolefin resin and has a thickness of 53.4 μm.
The preparation method of the tab comprises the following steps:
step 1: and adding the low-melting-point modified resin and the high-melting-point adhesive 22 on the outer layers of the two sides through charging openings of three extruders respectively, and performing high-temperature melting and plasticizing.
Step 2: the molten resin is passed through a section of holding zone to make the melt temperature uniform.
And step 3: and casting the resin melt passing through the heat preservation zone from a die head of an extruder, wherein the low-melting-point modified resin is respectively positioned at two sides of the high-melting-point adhesive 22.
And 4, step 4: and (4) casting from a die head, and cooling by a cooling roller to form a film.
And 5: the produced tab rubber mother material is split into specified widths.
Step 6: the cut tab glue and the metal sheet 10 are made into the tab in a thermal compounding mode.
Example 3:
the melting points of the inner low-melting point glue 21 and the outer low-melting point glue 23 and the melting point of the high-melting point glue 22 are 135 ℃ and 152 ℃, respectively, the thickness ratio is 1:2:1, and the total thickness is 80 μm.
The thickness of the low-melting-point glue 21 in the modified polyolefin resin and the thickness of the low-melting-point glue 23 outside the modified polyolefin resin are both 20 micrometers.
The high melting point adhesive 22 is polyolefin resin and has a thickness of 40 μm.
The preparation method of the tab comprises the following steps:
step 1: and respectively adding the inner low-melting-point glue 21, the outer low-melting-point glue 23 and the high-melting-point glue 22 through feed ports of three extruders, and performing high-temperature melting and plasticizing.
Step 2: the molten resin is passed through a section of holding zone to make the melt temperature uniform.
And step 3: and casting the resin melt passing through the heat preservation zone from a die head of an extruder, wherein the low-melting-point modified resin is respectively positioned at two sides of the high-melting-point adhesive 22.
And 4, step 4: and (4) casting from a die head, and cooling by a cooling roller to form a film.
And 5: the produced tab rubber mother material is split into specified widths.
Step 6: the cut plum ear glue and the metal sheet 10 are made into the pole ear in a thermal compounding mode.
The specific properties of the tab glue in embodiments 1-3 are as follows:
the packaging strength of the tab of the embodiment of the invention at 130 ℃ can be obtained by the test data and is less than or equal to 0.3N/mm, the active pressure relief requirement of the lithium ion battery when the temperature is raised to 130 ℃ can be met, and the safety performance of the polymer lithium ion battery is improved.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. A high temperature failed tab, comprising:
a metal sheet;
the tab glue is embedded on two sides of the metal sheet and at least comprises an inner low-melting-point glue and a high-melting-point glue, the two sides of the metal sheet are respectively thermally sealed by the inner low-melting-point glue of the tab glue, the melting point of the inner low-melting-point glue is below 135 ℃, the melting point of the high-melting-point glue is 145-165 ℃, and the high-melting-point glue of each tab glue is compounded on the other side of the inner low-melting-point glue.
2. The high temperature failed tab of claim 1 wherein the total thickness of the tab on one side of the sheet metal is 50 μm to 80 μm.
3. The high temperature failed tab of claim 1 or 2 wherein the high melt point thickness is 25 μm to 55 μm.
4. The high-temperature-failure-able tab as claimed in claim 1 or 2, wherein the thickness of the inner low-melting-point adhesive is 9 μm to 20 μm.
5. The high temperature failed tab according to claim 1 or 2, wherein the melting point of the inner low melting point glue is implemented between 125 ℃ and 135 ℃.
6. The high temperature failed tab of claim 1 or 2 wherein the metal sheet is embodied as an aluminum plastic film.
7. The high temperature failed tab according to claim 1 or 2, wherein the tab glue comprises an outer low melting point glue, the melting point of the outer low melting point glue is below 135 ℃, and the outer low melting point glue is heat sealed on the other side of the high melting point glue.
8. The high temperature failed tab of claim 7 wherein the outer low melt point adhesive is implemented as the same material as the inner low melt point adhesive.
9. The manufacturing method of the tab is characterized by comprising the following steps:
s1: respectively melting and plasticizing the inner low-melting-point adhesive, the high-melting-point adhesive and the outer low-melting-point adhesive;
s2, preserving the colloid in the molten state formed in the step S1 by preserving heat for a predetermined time;
s3, respectively extruding the inner low-melting-point adhesive, the high-melting-point adhesive and the outer low-melting-point adhesive through sequentially extruding equipment such as an extruder;
s4, cooling the extruded colloid to form a pole tab colloid to be used; and
and S5, thermally compounding the tab glue on a metal sheet to form the tab.
10. The method for manufacturing the tab as claimed in claim 9, wherein the method for manufacturing the tab comprises the following steps:
and cutting the tab glue before thermally compounding the tab glue on the metal sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110528691.2A CN113285181A (en) | 2021-05-14 | 2021-05-14 | High-temperature-ineffectible tab and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110528691.2A CN113285181A (en) | 2021-05-14 | 2021-05-14 | High-temperature-ineffectible tab and manufacturing method thereof |
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| CN113285181A true CN113285181A (en) | 2021-08-20 |
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| CN202110528691.2A Pending CN113285181A (en) | 2021-05-14 | 2021-05-14 | High-temperature-ineffectible tab and manufacturing method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1783545A (en) * | 2004-12-03 | 2006-06-07 | 中国电子科技集团公司第十八研究所 | Soft packaged lithium ion cell pole ear capable of safety discharging air |
| US20130230749A1 (en) * | 2011-01-25 | 2013-09-05 | Lg Chem, Ltd. | Cylindrical secondary battery |
| CN104893599A (en) * | 2014-03-06 | 2015-09-09 | 昭和电工包装株式会社 | Connection sheet insulation film and electrochemistry device |
| CN107785617A (en) * | 2017-11-02 | 2018-03-09 | 上海紫江新材料科技有限公司 | A kind of low temperature tab and preparation method thereof |
| CN110802901A (en) * | 2019-12-10 | 2020-02-18 | 格远电子科技（上海）有限公司 | Tab adhesive film, preparation method thereof and method for rapidly distinguishing positive electrode and negative electrode of tab |
| CN210926140U (en) * | 2019-11-25 | 2020-07-03 | 惠州锂威新能源科技有限公司 | High-safety lithium ion battery |
| CN112331905A (en) * | 2020-11-17 | 2021-02-05 | 珠海冠宇电池股份有限公司 | High-safety lithium ion battery and preparation method thereof |
-
2021
- 2021-05-14 CN CN202110528691.2A patent/CN113285181A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1783545A (en) * | 2004-12-03 | 2006-06-07 | 中国电子科技集团公司第十八研究所 | Soft packaged lithium ion cell pole ear capable of safety discharging air |
| US20130230749A1 (en) * | 2011-01-25 | 2013-09-05 | Lg Chem, Ltd. | Cylindrical secondary battery |
| CN104893599A (en) * | 2014-03-06 | 2015-09-09 | 昭和电工包装株式会社 | Connection sheet insulation film and electrochemistry device |
| CN107785617A (en) * | 2017-11-02 | 2018-03-09 | 上海紫江新材料科技有限公司 | A kind of low temperature tab and preparation method thereof |
| CN210926140U (en) * | 2019-11-25 | 2020-07-03 | 惠州锂威新能源科技有限公司 | High-safety lithium ion battery |
| CN110802901A (en) * | 2019-12-10 | 2020-02-18 | 格远电子科技（上海）有限公司 | Tab adhesive film, preparation method thereof and method for rapidly distinguishing positive electrode and negative electrode of tab |
| CN112331905A (en) * | 2020-11-17 | 2021-02-05 | 珠海冠宇电池股份有限公司 | High-safety lithium ion battery and preparation method thereof |
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Application publication date: 20210820 |
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