CN213584082U

CN213584082U - Electrolyte-resistant power battery tab

Info

Publication number: CN213584082U
Application number: CN202023017398.XU
Authority: CN
Inventors: 方秀忠; 叶仕廉; 林目春
Original assignee: Huizhou Jieer Technology Co ltd
Current assignee: Huizhou Jieer Technology Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-06-29
Anticipated expiration: 2030-12-15

Abstract

The utility model discloses an electrolyte-resistant power battery tab, including the sheetmetal, the upper surface of sheetmetal is provided with first anti-curved groove, the upper surface of sheetmetal and the first plastic sheet of left side fixedly connected with that just is located first anti-curved groove, be provided with silica gel between first plastic sheet and the sheetmetal, the lower fixed surface of first plastic sheet is connected with the magnetic stripe, the lower surface of first plastic sheet just is located and is provided with the vacuum cavity between the magnetic stripe. The utility model discloses, design silica gel and low temperature epoxy glue, realize all can guaranteeing viscidity under low temperature and high temperature's environment, prevent that the battery from leaking, design vacuum cavity and magnetic stripe realize that it self has certain adsorptivity, have reduced the stress of silica gel and low temperature epoxy glue, design the anti curved trough of second and phenolphthalein solution, realize reducing the deformation volume of second plastic piece when crooked to and in time instruct when leaking, improve the security.

Description

Electrolyte-resistant power battery tab

Technical Field

The utility model relates to a battery technology field especially relates to an electrolyte-resistant power battery utmost point ear.

Background

In recent years, with the increasing energy crisis and global environmental problems, the development and application of new energy has become a global hot tide, and various types of lithium ion batteries have been rapidly developed. The soft package lithium ion battery is divided into a soft package, a steel shell, an aluminum shell and a plastic shell according to the material quality of the shell, and the soft package lithium ion battery can meet various structural requirements because the shell is made by punching an aluminum plastic film into a box; and small volume, high specific energy density, receive many users' favor for, make laminate power battery of soft package also in the middle of developing rapidly. At present, the tab of the soft-package laminated power battery has the following two schemes: and a tab folding mode: welding the electrode lugs at the electrode lug switching positions of the electric core in the opposite direction, and then folding the electrode lugs in a punching box of an aluminum plastic film; the mode of not folding the tab is as follows: the mode of winding high-temperature adhesive tape is adopted in the cell lug switching position to prevent the welding spot from possibly puncturing the aluminum plastic film in the subsequent manufacturing process.

The current electrolyte-resistant power battery tab leaks due to temperature change in the use process after the tab is packaged, the current electrolyte-resistant power battery tab is complex in the detection process and not beneficial to observing the detection result, and the deformation of the current electrolyte-resistant power battery tab is too large when the tab is bent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing an electrolyte-resistant power battery tab.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electrolyte-resistant power battery tab comprises a metal sheet, wherein a first anti-bending groove is formed in the upper surface of the metal sheet, a first plastic sheet is fixedly connected to the upper surface of the metal sheet and positioned on the left side of the first anti-bending groove, silica gel is arranged between the first plastic sheet and the metal sheet, a magnetic stripe is fixedly connected to the lower surface of the first plastic sheet, and a vacuum cavity is formed between the lower surface of the first plastic sheet and the magnetic stripe;

the upper surface of first plastic sheet is provided with the recess, the upper surface of sheetmetal just is located the left side fixedly connected with second plastic sheet of first plastic sheet, the lower surface of second plastic sheet is provided with the location lug, be provided with phenolphthalein solution between second plastic sheet and the sheetmetal, the upper surface of sheetmetal just is located the right side fixedly connected with location line of phenolphthalein solution, be provided with low temperature epoxy between first plastic sheet and the second plastic sheet, the upper surface of second plastic sheet is provided with the second and resists the curved groove.

As a further description of the above technical solution:

the right surface of the metal sheet is fixedly connected with a copper sheet, and one side surface of the copper sheet is provided with an insulating coating.

As a further description of the above technical solution:

the number of the first bending-resistant grooves is a plurality of and the first bending-resistant grooves are arranged in an up-down symmetrical mode.

As a further description of the above technical solution:

the first plastic sheets are made of transparent materials, and the number of the first plastic sheets is two and the first plastic sheets are arranged in an up-and-down symmetrical mode.

As a further description of the above technical solution:

the number of magnetic stripe is two and bilateral symmetry arranges, the thickness of magnetic stripe is the same with the thickness of silica gel.

As a further description of the above technical solution:

the number of the grooves is a plurality of and the grooves are arranged in an up-down symmetrical mode, and the depth of the grooves in the middle is larger than that of the grooves on two sides.

As a further description of the above technical solution:

the positioning lug corresponds to the groove in position, and the second plastic sheet is made of transparent materials.

As a further description of the above technical solution:

the number of the second bending resistant grooves is two, and the two second plastic sheets are in contact with each other.

The utility model discloses following beneficial effect has:

1. compared with the prior art, the electrolyte-resistant power battery tab realizes that the stickiness can be ensured under the environments of low temperature and high temperature by designing the silica gel and the low-temperature epoxy glue, thereby achieving the purpose of preventing the battery from leaking.

2. Compared with the prior art, the electrolyte-resistant power battery tab realizes certain adsorptivity by designing the vacuum cavity and the magnetic strip, and achieves the purpose of reducing the stress of silica gel and low-temperature epoxy glue.

3. Compared with the prior art, the electrolyte-resistant power battery tab realizes the reduction of the deformation amount of the second plastic sheet during bending and the timely indication during leakage by designing the second anti-bending groove and the phenolphthalein solution, thereby achieving the purpose of improving the safety.

Drawings

Fig. 1 is a schematic diagram of an internal structure of an electrolyte-resistant power battery tab provided by the present invention;

fig. 2 is a top view of an electrolyte-resistant power battery tab provided by the present invention;

fig. 3 is a left side view of an electrolyte-resistant power battery tab provided by the present invention;

fig. 4 is the overall structure schematic diagram of the power battery tab with electrolyte resistance provided by the utility model.

Illustration of the drawings:

1. a metal sheet; 2. phenolphthalein solution; 3. positioning a line; 4. a magnetic strip; 5. a vacuum chamber; 6. a first plastic sheet; 7. low-temperature epoxy glue; 8. a second plastic sheet; 9. silica gel; 10. a copper sheet; 11. a first anti-bending slot; 12. a second anti-bending groove; 13. positioning the bump; 14. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the utility model provides a pair of electrolyte-resistant power battery utmost point ear: the metal sheet comprises a metal sheet 1, a copper sheet 10 is fixedly connected to the right surface of the metal sheet 1, the copper sheet 10 is used for being connected with the outside, an insulating coating is arranged on one side surface of the copper sheet 10, a first anti-bending groove 11 is formed in the upper surface of the metal sheet 1, the number of the first anti-bending grooves 11 is multiple, a first plastic sheet 6 is fixedly connected to the left side of the first anti-bending groove 11 and is arranged on the upper surface of the metal sheet 1 in an up-down symmetrical mode, the first plastic sheet 6 is made of transparent materials, the number of the first plastic sheets 6 is two and is arranged in an up-down symmetrical mode, silica gel 9 is arranged between the first plastic sheet 6 and the metal sheet 1, a magnetic strip 4 is fixedly connected to the lower surface of the first plastic sheet 6, the magnetic strip 4 is used for increasing adsorption, the number of the magnetic strips 4 is two and is arranged in a left-right symmetrical mode, the thickness, the vacuum cavity 5 is used for increasing adsorption;

the upper surface of first plastic sheet 6 is provided with recess 14, the quantity of recess 14 is a plurality of and upper and lower symmetrical arrangement, the degree of depth of middle recess 14 is greater than both sides, the upper surface of sheetmetal 1 and the left side fixedly connected with second plastic sheet 8 that is located first plastic sheet 6, the lower surface of second plastic sheet 8 is provided with location lug 13, location lug 13 corresponds with the position of recess 14, second plastic sheet 8 is transparent material, be provided with phenolphthalein solution 2 between second plastic sheet 8 and the sheetmetal 1, the upper surface of sheetmetal 1 and the right side fixedly connected with location line 3 that is located phenolphthalein solution 2, be provided with low temperature epoxy glue 7 between first plastic sheet 6 and the second plastic sheet 8, the upper surface of second plastic sheet 8 is provided with second anti-bending groove 12, the quantity of second anti bending groove 12 is a plurality of, the quantity of second plastic sheet 8 is two, two second plastic sheets 8 contact each other.

The working principle is as follows: pressing vacuum cavity 5 and extruding the air, increasing its adsorptivity, align locating convex block 13 and recess 14 and fill silica gel 9 and seal, contact metal sheet 1 left side and electrolyte left side, if first plastic sheet 6 leaks, phenolphthalein solution 2 and electrolyte contact, phenolphthalein solution 2 will change colour, and the degree of leaking is instructed to location line 3.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a power battery utmost point ear of resistant electrolyte, includes sheetmetal (1), its characterized in that: a first anti-bending groove (11) is formed in the upper surface of the metal sheet (1), a first plastic sheet (6) is fixedly connected to the upper surface of the metal sheet (1) and located on the left side of the first anti-bending groove (11), silica gel (9) is arranged between the first plastic sheet (6) and the metal sheet (1), a magnetic stripe (4) is fixedly connected to the lower surface of the first plastic sheet (6), and a vacuum cavity (5) is formed between the lower surface of the first plastic sheet (6) and the magnetic stripe (4);

the upper surface of first plastic sheet (6) is provided with recess (14), the upper surface of sheetmetal (1) just is located left side fixedly connected with second plastic sheet (8) of first plastic sheet (6), the lower surface of second plastic sheet (8) is provided with locating lug (13), be provided with phenolphthalein solution (2) between second plastic sheet (8) and sheetmetal (1), the upper surface of sheetmetal (1) just is located right side fixedly connected with location line (3) of phenolphthalein solution (2), be provided with low temperature epoxy glue (7) between first plastic sheet (6) and second plastic sheet (8), the upper surface of second plastic sheet (8) is provided with second anti-bending groove (12).

2. The electrolyte resistant power battery tab as claimed in claim 1, wherein: the right surface of the metal sheet (1) is fixedly connected with a copper sheet (10), and one side surface of the copper sheet (10) is provided with an insulating coating.

3. The electrolyte resistant power battery tab as claimed in claim 1, wherein: the number of the first bending-resistant grooves (11) is a plurality and the first bending-resistant grooves are arranged in an up-down symmetrical mode.

4. The electrolyte resistant power battery tab as claimed in claim 1, wherein: the first plastic sheets (6) are made of transparent materials, and the number of the first plastic sheets (6) is two and the two plastic sheets are arranged in an up-down symmetrical mode.

5. The electrolyte resistant power battery tab as claimed in claim 1, wherein: the number of the magnetic stripes (4) is two, the magnetic stripes are arranged in a bilateral symmetry mode, and the thickness of the magnetic stripes (4) is the same as that of the silica gel (9).

6. The electrolyte resistant power battery tab as claimed in claim 1, wherein: the number of the grooves (14) is multiple and the grooves are arranged in an up-down symmetrical mode, and the depth of the grooves (14) in the middle is larger than that of the grooves on two sides.

7. The electrolyte resistant power battery tab as claimed in claim 1, wherein: the positioning bumps (13) correspond to the grooves (14), and the second plastic sheet (8) is made of transparent materials.

8. The electrolyte resistant power battery tab as claimed in claim 1, wherein: the number of the second bending resistant grooves (12) is two, and the number of the second plastic sheets (8) is two, and the two second plastic sheets (8) are in contact with each other.