CN216773473U - Surface-insulated tab - Google Patents

Surface-insulated tab Download PDF

Info

Publication number
CN216773473U
CN216773473U CN202122793593.XU CN202122793593U CN216773473U CN 216773473 U CN216773473 U CN 216773473U CN 202122793593 U CN202122793593 U CN 202122793593U CN 216773473 U CN216773473 U CN 216773473U
Authority
CN
China
Prior art keywords
tab
battery
positive
negative
insulated
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.)
Active
Application number
CN202122793593.XU
Other languages
Chinese (zh)
Inventor
周显茂
赵裕锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Vdl New Energy Co ltd
Original Assignee
Guangdong Vdl New Energy Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Vdl New Energy Co ltd filed Critical Guangdong Vdl New Energy Co ltd
Priority to CN202122793593.XU priority Critical patent/CN216773473U/en
Application granted granted Critical
Publication of CN216773473U publication Critical patent/CN216773473U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model discloses a tab with an insulated surface, which aims to solve the technical problems that the prior art can occupy the internal space volume of a battery, is not beneficial to improving the energy density of the battery, and has the problems that an adhesive layer is bonded and failed to cause internal short circuit due to the soaking of electrolyte or mechanical vibration and the like when an insulating tape is pasted. This utmost point ear includes positive plate, negative pole piece, battery, positive plate right-hand member swing joint has the whole rubber coating of positive plate ear, negative plate right-hand member swing joint has the whole rubber coating of negative plate ear, the whole rubber coating lower extreme swing joint of positive plate ear has the non-welding portion rubber coating of positive plate ear. This utmost point ear guarantees the end of drawing forth of utmost point ear welding part, perhaps non-welding part, has insulating effect, reduces the shared space volume of tradition subsides insulating cement technology adhesive tape, can avoid tradition simultaneously to paste insulating adhesive tape because of soaking electrolyte, perhaps reasons such as mechanical vibration lead to the glue film to bond inefficacy, cause interior short circuit safety problem.

Description

Surface-insulated tab
Technical Field
The utility model belongs to the technical field of batteries, and particularly relates to a tab with an insulated surface.
Background
The tab is a raw material of a lithium ion polymer battery product. For example, the tabs are needed to be used for mobile phone batteries, Bluetooth batteries, notebook batteries and the like used in life. The battery is divided into positive and negative electrodes, the tabs are metal conductors leading out the positive and negative electrodes from the battery core, and the ears of the positive and negative electrodes of the battery are contact points during charging and discharging. The contact point is not the copper sheet that we see on the outside of the cell, but rather a connection inside the cell. The electrode lugs are divided into three materials, the anode of the battery is made of aluminum (Al) material, the cathode of the battery is made of nickel (Ni) material, the cathode of the battery is also made of copper nickel (Ni-Cu) material, and the anode and the cathode are both formed by compounding a film and a metal belt.
At present, the utility model patent of patent number 201810640983.3 discloses a battery tab surface utmost point ear relates to battery technology field, and this battery tab surface utmost point ear carries out plasma sculpture after will utmost point ear washs and gets rid of the passivation layer on utmost point ear surface after, accomplishes the surface treatment of antipodal ear. The surface treatment of the tab is completed after a passivation layer on the surface of the tab is removed by plasma etching after the tab is cleaned, but the tab can only be used for treating the surface of the tab and cannot be used for treating the surface insulation of the tab.
Therefore, in order to solve the problem that it is difficult to completely and quickly process the surface insulation of the tab after the tab is used, it is necessary to improve the use scenario of the tab.
SUMMERY OF THE UTILITY MODEL
(1) Technical problem to be solved
Aiming at the defects of the prior art, the utility model aims to provide a tab with an insulated surface, and the tab aims to solve the technical problems that the prior art occupies the internal space volume of a battery, is not beneficial to improving the energy density of the battery, and has the problems that an insulating tape is stuck to cause adhesive layer bonding failure due to electrolyte soaking or mechanical vibration and the like, so that internal short circuit is caused.
(2) Technical scheme
In order to solve the technical problem, the utility model provides a tab with an insulated surface, which comprises a positive plate, a negative plate and a battery, wherein the right end of the positive plate is movably connected with positive tab whole glue, the right end of the negative plate is movably connected with negative tab whole glue, the lower end of the positive tab whole glue is movably connected with positive tab non-welding part glue, the lower end of the negative tab whole glue is movably connected with negative tab non-welding part glue, the left end of the battery is movably connected with positive tab whole glue, and the right end of the battery is movably connected with negative tab whole glue.
When the electrode lug of the technical scheme is used, the surface of the integral electrode lug of the anode electrode lug/the cathode electrode lug is subjected to insulation treatment and is welded on the anode plate/the cathode plate, the surface of the electrode lug of the non-welding part of the anode electrode lug/the cathode electrode lug is subjected to insulation treatment and is welded on the anode plate/the cathode plate, the battery core is made into a semi-finished product battery cell in a winding mode and then is subjected to hot melt sealing with an aluminum plastic film, the surface of the integral electrode lug of the anode electrode lug/the cathode electrode lug is subjected to insulation treatment and is welded on the anode plate/the cathode plate, the battery cell is made into the semi-finished product battery cell in a winding mode, then the electrode lug is subjected to spot welding connection with the upper cover and the lower cover of a steel shell, the surface of the integral electrode lug of the anode electrode lug/the cathode electrode lug is subjected to insulation treatment and is welded on the anode plate/the cathode plate, the upper cover and the lower cover of the steel shell are subjected to mechanical buckling or laser welding, and the battery cell is made into the semi-finished product battery cell in a lamination mode, and then the lug is connected with the upper and lower covers of the steel shell in a spot welding manner, and the upper and lower covers of the steel shell are buckled mechanically or are welded by laser.
Preferably, the positive plate is provided with an insulating layer on the whole section of the positive electrode lug, so that the positive plate is effectively insulated and protected, and the normal use of the positive plate is ensured.
Preferably, the whole section of the negative pole tab of the negative pole piece is provided with the insulating layer, so that the negative pole piece is effectively insulated and protected, and the normal use of the negative pole piece is ensured.
Preferably, the positive plate and the negative plate are provided with insulating layers at the outer edge part of the welding part, and the insulating layers at the outer edge part of the welding part are further protected.
Preferably, the whole glue coating of the positive lug is a 10-1000 nanometer insulating coating, and the structural design is reasonable.
Preferably, the thickness of the whole glue coating of the positive electrode tab is 1-5 um.
Preferably, the battery type is a laminated cylindrical battery.
Preferably, the battery type is a button cell battery.
(3) Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that: the tab ensures the leading-out end of the welding part or the non-welding part of the tab, has an insulation effect, reduces the space volume occupied by the adhesive tape of the traditional adhesive tape sticking process, improves the energy density of a battery, and can avoid the safety problem of internal short circuit caused by adhesive layer bonding failure caused by electrolyte soaking, mechanical vibration or other reasons of the traditional adhesive tape sticking process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of the overall gluing of a positive electrode tab according to an embodiment of the tab of the present invention;
fig. 2 is a schematic view of the overall gluing of a negative electrode tab according to an embodiment of the tab of the utility model;
fig. 3 is a schematic diagram illustrating gluing of a non-welded part of a positive electrode tab according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating gluing of a non-welded part of a negative electrode tab according to an embodiment of the present invention;
fig. 5 is a schematic diagram of gluing a battery tab according to an embodiment of the present invention.
The labels in the figures are: 1. a positive plate; 2. gluing the whole positive lug; 3. a negative plate; 4. coating the whole negative electrode tab with glue; 5. gluing the non-welding part of the positive lug; 6. gluing a non-welding part of the negative electrode lug; 7. a battery.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood and obvious, the technical solutions in the embodiments of the present invention are clearly and completely described below to further illustrate the utility model, and obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments.
Example 1
Referring to fig. 1-4, the tab comprises a positive plate 1, a negative plate 3 and a battery 7, wherein the right end of the positive plate 1 is movably connected with a positive tab whole glue coating 2, the right end of the negative plate 3 is movably connected with a negative tab whole glue coating 4, the lower end of the positive tab whole glue coating 2 is movably connected with a positive tab non-welding part glue coating 5, the lower end of the negative tab whole glue coating 4 is movably connected with a negative tab non-welding part glue coating 6, the left end of the battery 7 is movably connected with a positive tab whole glue coating 2, and the right end of the battery 7 is movably connected with a negative tab whole glue coating 4.
The anode plate 1 is provided with an insulating layer on the whole section of the anode tab, and the cathode plate 3 is provided with an insulating layer on the whole section of the cathode tab.
Meanwhile, the insulating layers are arranged on the outer edge parts of the positive plate 1 and the negative plate 3 in the welding part, the whole glue coating 2 of the positive tab is a 10-1000 nanometer insulating coating, and the thickness of the whole glue coating 2 of the positive tab is 1-5 um.
Example 2
Referring to fig. 1-5, the tab comprises a positive plate 1, a negative plate 3 and a battery 7, wherein the right end of the positive plate 1 is movably connected with a positive tab whole glue coating 2, the right end of the negative plate 3 is movably connected with a negative tab whole glue coating 4, the lower end of the positive tab whole glue coating 2 is movably connected with a positive tab non-welding part glue coating 5, the lower end of the negative tab whole glue coating 4 is movably connected with a negative tab non-welding part glue coating 6, the left end of the battery 7 is movably connected with a positive tab whole glue coating 2, and the right end of the battery 7 is movably connected with a negative tab whole glue coating 4.
The anode plate 1 is provided with an insulating layer on the whole section of the anode tab, and the cathode plate 3 is provided with an insulating layer on the whole section of the cathode tab.
Meanwhile, the insulating layers are arranged on the outer edge parts of the positive plate 1 and the negative plate 3 in the welding part, the whole glue coating 2 of the positive tab is a 10-1000 nanometer insulating coating, and the thickness of the whole glue coating 2 of the positive tab is 1-5 um.
In addition, the battery 7 type is a laminated cylindrical battery, and the battery 7 type is a button battery.
When the electrode lug of the technical scheme is used, the surface insulation treatment of the integral electrode lug of the anode electrode lug/the cathode electrode lug is welded on the anode plate 1/the cathode plate 3, the surface insulation treatment of the electrode lug of the non-welding part of the anode electrode lug/the cathode electrode lug is welded on the anode plate 1/the cathode plate 3, the battery core is made into a semi-finished product battery core in a winding way, then the semi-finished product battery core is thermally fused and sealed with an aluminum plastic film, the surface insulation treatment of the integral electrode lug of the anode electrode lug/the cathode electrode lug is welded on the anode plate 1/the cathode plate 3, the battery core is made into a semi-finished product battery core in a winding way, then the electrode lug is connected with the upper cover and the lower cover of the steel shell in a spot welding way, the surface insulation treatment of the electrode lug of the non-welding part of the anode electrode lug/the cathode electrode lug is welded on the anode plate 1/the cathode plate 3, the upper cover and the lower cover of the steel shell are in a mechanical buckling or laser welding way, and the battery core is made into a semi-finished product battery core in a way, and then the lug is connected with the upper and lower covers of the steel shell in a spot welding manner, and the upper and lower covers of the steel shell are buckled mechanically or are welded by laser.
Having thus described the principal technical features and basic principles of the utility model, and the advantages associated therewith, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description describes embodiments, not every embodiment includes only a single embodiment, and such descriptions are provided for clarity only, and those skilled in the art will recognize that the embodiments described herein may be combined as a whole to form other embodiments as would be understood by those skilled in the art.

Claims (8)

1. A tab with an insulated surface comprises a positive plate (1), a negative plate (3) and a battery (7), wherein the right end of the positive plate (1) is movably connected with positive tab integral glue (2), the right end of the negative plate (3) is movably connected with negative tab integral glue (4), and the lower end of the positive tab integral glue (2) is movably connected with positive tab non-welding part glue (5); the negative electrode tab whole gluing device is characterized in that the lower end of the negative electrode tab whole gluing device (4) is movably connected with a negative electrode tab non-welding part gluing device (6), the left end of the battery (7) is movably connected with a positive electrode tab whole gluing device (2), and the right end of the battery (7) is movably connected with the negative electrode tab whole gluing device (4).
2. A surface-insulated tab as claimed in claim 1, wherein the positive electrode sheet (1) is provided with an insulating layer over the entire length of the positive electrode tab.
3. A surface-insulated tab as claimed in claim 1, wherein the negative electrode tab (3) is provided with an insulating layer over the entire length of the negative electrode tab.
4. A surface-insulated tab as claimed in claim 1, wherein the positive electrode tab (1) and the negative electrode tab (3) are provided with an insulating layer at the outer edge of the welding portion.
5. A surface insulated pole ear as claimed in claim 1, characterized in that the whole glue coating (2) of the positive pole ear is 10-1000 nanometer insulation coating.
6. A surface-insulated tab according to claim 5, characterized in that the thickness of the whole glue (2) of the tab is 1-5 um.
7. A surface insulated tab as claimed in claim 1, wherein the battery (7) is of the laminated cylindrical type.
8. A surface insulated tab as claimed in claim 1, wherein the battery (7) is of the button cell type.
CN202122793593.XU 2021-11-15 2021-11-15 Surface-insulated tab Active CN216773473U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122793593.XU CN216773473U (en) 2021-11-15 2021-11-15 Surface-insulated tab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122793593.XU CN216773473U (en) 2021-11-15 2021-11-15 Surface-insulated tab

Publications (1)

Publication Number Publication Date
CN216773473U true CN216773473U (en) 2022-06-17

Family

ID=81962435

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122793593.XU Active CN216773473U (en) 2021-11-15 2021-11-15 Surface-insulated tab

Country Status (1)

Country Link
CN (1) CN216773473U (en)

Similar Documents

Publication Publication Date Title
JP5186529B2 (en) Lithium secondary battery
KR100958649B1 (en) Battery unit and the winding method thereof and lithum secondary battery using the same
WO2013159454A1 (en) High-capacity cylindrical lithium ion battery and production method thereof
CN110600795A (en) Lithium ion cylindrical battery and processing method thereof
JP2004134116A (en) Bipolar battery
JP2013077484A (en) Secondary battery
WO2007071122A1 (en) A wind type lithium ion battery with a soft package case and a method of manufacture the same
WO2018157624A1 (en) Battery core
JP2002184364A (en) Square cell and wrapping method of the same
JPH11213964A (en) Thin battery and its manufacture
JP2011216398A (en) Secondary battery and method for manufacturing the same
WO2023103993A1 (en) Electrode sheet and battery
JP2012014952A (en) Battery and method of manufacturing the same
WO2021232720A1 (en) Multi-tab cylindrical battery roll core and lithium ion battery
CN201478392U (en) High-power lithium ion power battery with collecting disc
WO2023000629A1 (en) Tab-free lithium ion battery and manufacturing method therefor
JP3221324B2 (en) Thin battery and manufacturing method thereof
CN207530032U (en) A kind of lithium ion cell polar ear of high sealing liquid-leakage preventing
JP4686807B2 (en) Winding battery
CN212380471U (en) Hard shell button cell
CN115708240A (en) Battery pole piece and battery
CN103219524A (en) Positive pole current collector foil and positive pole piece of laminated lithium ion battery and laminated lithium ion battery
CN115513607B (en) Low-loss and high-space utilization rate lithium ion battery full-tab structure and preparation method thereof
CN216773473U (en) Surface-insulated tab
JP4228376B2 (en) battery

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant