CN221126196U - Battery structure - Google Patents
Battery structure Download PDFInfo
- Publication number
- CN221126196U CN221126196U CN202322869107.7U CN202322869107U CN221126196U CN 221126196 U CN221126196 U CN 221126196U CN 202322869107 U CN202322869107 U CN 202322869107U CN 221126196 U CN221126196 U CN 221126196U
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- current collecting
- negative
- positive
- plate
- winding core
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- 238000004804 winding Methods 0.000 claims abstract description 46
- 239000003792 electrolyte Substances 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Secondary Cells (AREA)
Abstract
The utility model discloses a battery structure, which comprises a shell, a winding core and a cover plate, wherein a containing cavity is formed in the shell, an opening is formed in one end of the shell, the opening is communicated with the containing cavity, electrolyte is filled in the containing cavity, positive electrode lugs and negative electrode lugs are respectively arranged at two ends of the winding core, a positive current collecting plate and a negative current collecting plate are arranged on the outer side of the winding core, the positive current collecting plate is connected with the positive electrode lugs, a positive connection piece is arranged on the positive current collecting plate, the positive connection piece is positioned on the end face of one end of the positive current collecting plate, the negative current collecting plate is connected with the negative electrode lugs, a negative connection piece is arranged on the negative current collecting plate, one end of the negative connection piece extends around the outer side of the winding core, the winding core is arranged in the containing cavity, the cover plate is covered at the opening, a positive electrode column and a negative electrode column are arranged on the cover plate, the positive connection piece is connected with the positive electrode column, and one end of the negative connection piece is connected with the negative electrode column. The utility model provides a battery structure, which improves the internal structure of the battery and leads positive and negative poles to be positioned at one end of the battery.
Description
Technical Field
The utility model relates to the field of power batteries, in particular to a battery structure.
Background
A battery is a device that contains an electrolyte solution and electrodes with metal foil in a container to generate an electric current, which is capable of converting chemical energy into electrical energy; along with the progress of science and technology, the battery is more and more widely applied in life through the characteristics of simple structure, convenient carrying, convenient charging and discharging and the like, and is mainly applied to a plurality of fields such as aerospace, transportation, lighting systems, electronic products, electric energy storage and the like at present.
Among the existing battery types, the battery adopting the full-tab winding core has the characteristics of higher output power and higher charging speed; the battery comprises a shell, two cover plates and a winding core, wherein the two cover plates are respectively provided with a positive electrode column and a negative electrode column, the winding core is arranged in the shell, the two cover plates are respectively covered at two ends of the shell to seal the winding core in the shell, positive and negative electrode lugs of the winding core are respectively electrically connected with the positive and negative electrode columns, electrolyte is filled in the shell, and the electrolyte is used for providing carriers for the transmission of ions when the battery is charged and discharged.
In order to realize the design of full tab, the positive and negative tabs of the winding core are respectively positioned at two ends of the winding core, so that positive and negative poles often need to be arranged at two ends of the battery, the positive and negative poles of the battery can be connected with the positive and negative tabs of the corresponding winding core, and when the positive and negative contacts of the battery-mounted equipment need to be positioned at the same end, the battery structure cannot meet the requirement.
Disclosure of utility model
The utility model aims to provide a battery structure, which is improved in internal structure, so that positive and negative poles are positioned at one end of the battery.
The utility model discloses a battery structure which adopts the following technical scheme:
The lithium ion battery pack comprises a shell, a winding core and a cover plate, wherein an accommodating cavity is formed in the shell, an opening is formed in one end of the shell, the opening is communicated with the accommodating cavity, electrolyte is filled in the accommodating cavity, positive electrode lugs and negative electrode lugs are respectively arranged at two ends of the winding core, a positive current collecting plate and a negative current collecting plate are arranged on the outer side of the winding core, the positive current collecting plate is connected with the positive electrode lugs, a positive connection piece is arranged on the positive current collecting plate and is positioned on the end face of one end of the positive current collecting plate, the negative current collecting plate is connected with the negative electrode lugs, a negative connection piece is arranged on the negative current collecting plate, one end of the negative connection piece extends around the outer side of the winding core, one end of the negative connection piece extends to the upper side of one end of the positive current collecting plate, the winding core is arranged in the accommodating cavity, the cover plate is arranged at the opening in a cover plate, positive electrode posts and negative electrode posts are arranged on the cover plate, the positive electrode posts and the negative electrode posts are all penetrated through the cover plate, one ends of the positive connection piece are connected with the positive electrode posts, and one ends of the negative connection piece are connected with the negative electrode posts.
As a preferred scheme, the winding core comprises a plurality of first diaphragms, positive pole pieces, second diaphragms and negative pole pieces which are sequentially stacked and wound, wherein the positive pole lugs are positioned at the end parts of the positive pole pieces, the negative pole lugs are positioned at the end parts of the negative pole pieces.
Preferably, the positive electrode connecting piece is close to one side of the positive current collecting disc, and one end of the negative electrode connecting piece is close to the other side of the positive current collecting disc.
As a preferable scheme, the outside of the winding core is provided with a first insulating plate, the first insulating plate is positioned between the negative electrode connecting sheet and the winding core, one end of the first insulating plate extends to the end face of one end of the positive current collecting disc, a second insulating plate is arranged in the accommodating cavity, and the second insulating plate is positioned between the inner wall of the accommodating cavity and the negative current collecting disc.
As a preferred scheme, a plurality of first through holes which are distributed at intervals are formed in the positive current collecting disc, a plurality of second through holes which are distributed at intervals are formed in the negative current collecting disc, a first welding seam is formed by welding the positive current collecting disc and the positive electrode lug, a second welding seam is formed by welding the negative current collecting disc and the negative electrode lug, and a plurality of gaps which are distributed at intervals are formed in the outer sides of the positive current collecting disc and the negative current collecting disc.
As a preferable scheme, the cover plate is provided with a liquid injection hole, the liquid injection hole penetrates through the cover plate, and the liquid injection hole is detachably connected with a sealing nail or a sealing steel ball.
As an optimal scheme, be equipped with insulating device on the apron, insulating device card goes into in the opening, be equipped with the relief valve on the apron, be equipped with the baffle on the relief valve, the baffle is located and accepts the intracavity.
The beneficial effects of the battery structure disclosed by the utility model are as follows:
through being connected with positive current collecting plate and negative current collecting plate respectively at the anodal utmost point ear at core both ends and negative current collecting plate, let positive current collecting plate and negative current collecting plate's on positive current collecting plate and the negative current collecting plate positive connection piece derive, positive connection piece is located positive current collecting plate one end's terminal surface, the outside of rolling up the core has been walked around in the one end extension of negative connection piece, the top of positive current collecting plate one end is extended to the one end of negative connection piece for positive connection piece and negative connection piece can be connected with positive post and the negative post on the apron respectively at the same end of casing, realize the positive post and the negative post of battery need be located the user demand of same one end.
Drawings
Fig. 1 is a schematic structural view of a battery structure according to the present utility model.
Fig. 2 is an installation schematic view of a battery structure of the present utility model.
Fig. 3 is a schematic view of a battery installation of a battery structure of the present utility model.
Fig. 4 is a schematic view of a positive current collecting plate structure of a battery structure according to the present utility model.
Fig. 5 is a schematic view of a negative current collecting plate structure of a battery structure according to the present utility model.
Fig. 6 is a schematic diagram of a cover plate structure of a battery structure according to the present utility model.
Detailed Description
The utility model is further illustrated and described below in conjunction with the specific embodiments and the accompanying drawings:
Please refer to fig. 1-3.
The utility model discloses a battery structure, which comprises a shell 11, a winding core 21 and a cover plate 31.
The preferred case 11 of this embodiment is made of aluminum; the housing 11 is internally provided with a containing cavity for containing the winding core 21, one end of the housing 11 is provided with an opening, the opening is communicated with the containing cavity, and when the winding core 21 is installed, the winding core 21 is placed into the containing cavity through the opening. Electrolyte is filled in the accommodating cavity, and the electrolyte is used for providing a carrier for ion transmission during charge and discharge of the battery.
Please refer to fig. 2-5.
The two ends of the winding core 21 are respectively provided with a positive electrode lug and a negative electrode lug, the winding core 21 comprises a first diaphragm, a positive electrode plate, a second diaphragm and a negative electrode plate which are sequentially stacked and wound, and the first diaphragm and the second diaphragm can provide channels for lithium and other ions in the positive electrode plate and the negative electrode plate to transmit and block electron transmission in the charging and discharging process while isolating the positive electrode plate from contacting with the negative electrode plate. In this embodiment, the number of positive electrode tabs is preferably plural, and the positive electrode tabs are located at the end of the positive electrode plate. In this embodiment, the number of the negative electrode tabs is preferably plural, and the negative electrode tabs are located at the end of the negative electrode plate.
The outside of the winding core 21 is provided with a positive current collecting disc 22 and a negative current collecting disc 23, the positive current collecting disc 22 is contacted with a positive electrode lug, the positive current collecting disc 22 and the positive electrode lug are welded to form a first welding seam 222, and the first welding seam 222 is positioned on the end face of one end of the positive current collecting disc 22. The negative current collecting disc 23 is in contact with the negative electrode tab, a second welding seam 232 is formed by welding the negative current collecting disc 23 and the negative electrode tab, and the second welding seam 232 is positioned on the end face of one end of the negative current collecting disc 23. The front collecting disc 22 is provided with a plurality of first through holes 223 which are arranged at intervals, and the plurality of first through holes 223 are respectively positioned at two sides of the first welding line 222; the negative collecting disc 23 is provided with a plurality of second through holes 233 which are arranged at intervals, and the second through holes 233 are respectively positioned at two sides of the second welding line 232; the edges of the two ends of the first through hole 223 and the edges of the two ends of the second through hole 233 are respectively provided with a bulge, the bulges can lift the positive current collecting disc 22 and the negative current collecting disc 23 to a certain height, a certain gap exists between the bulges and the winding core 21, the bulges have the height adjusting effect, the through holes 233 and the bulges can increase the permeable flow providing space of the electrolyte, and the bulges can improve the strength of the positive current collecting disc and the negative current collecting disc. The outer sides of the positive current collecting disc 22 and the negative current collecting disc 23 are respectively provided with a plurality of gaps 234 which are arranged at intervals, and the gaps 234 can further increase the space for the electrolyte to permeate and flow.
The positive current collecting plate 22 is provided with a positive electrode connecting plate 221, the positive electrode connecting plate 221 is positioned on the end face of one end of the positive current collecting plate 22, the positive electrode connecting plate 221 is close to one side of the positive current collecting plate 22, and the positive electrode connecting plate 221 and the positive current collecting plate 22 form a U shape. The negative current collecting plate 23 is provided with a negative electrode connecting plate 231, one end of the negative electrode connecting plate 231 extends around the outer side of the winding core 21, one end of the negative electrode connecting plate 231 extends above one end of the positive current collecting plate 22, the negative electrode connecting plate 231 and the positive current collecting plate 22 are not contacted with each other, and one end of the negative electrode connecting plate 231 is close to the other side of the positive current collecting plate 22; so that the negative current collecting plate 23 can be connected to the negative electrode post 312 at one end of the battery through the negative electrode connection tab 231.
The outside of the winding core 21 is provided with a first insulating plate 24, the first insulating plate 24 is positioned between the negative electrode connecting sheet 231 and the winding core 21, one end of the first insulating plate 24 extends to the end face of one end of the positive current collecting disc 22, one end of the first insulating plate 24 extends to a U-shaped space formed by the positive electrode connecting sheet 221 and the positive current collecting disc 22, the negative electrode connecting sheet 231 is separated from the positive current collecting disc 22, the negative electrode connecting sheet 231 is also separated from the winding core 21, and the negative electrode connecting sheet 231 is prevented from contacting the positive current collecting disc 22 or the winding core 21 to conduct current. A second insulating plate 25 is arranged in the accommodating cavity, and the second insulating plate 25 is positioned between the inner wall of the accommodating cavity and the negative collecting plate 23. The second insulating plate 25 separates the housing 11 from the negative collector plate 23, avoiding that the current of the negative collector plate 23 is directed to the housing 11. The positive current collector plate 22 contacts the housing 11 and directs current to the aluminum housing 11. The positively charged aluminum housing 11 prevents the cell from corroding during use.
Please refer to fig. 1-3 and fig. 6.
The cover plate 31 is provided with a positive pole 311 and a negative pole 312, the positive pole 311 and the negative pole 312 are respectively close to two sides of the cover plate 31, the positive pole 311 and the negative pole 312 penetrate through the cover plate 31, and in this embodiment, the positive pole 311 and the negative pole 312 are preferably cylinders or cuboids. The cover plate 31 is provided with a pressure relief valve 313, the pressure relief valve 313 penetrates through the cover plate 31, and the pressure relief valve 313 is provided with a baffle 314; when the battery is damaged, the internal air pressure is excessively high, the pressure release valve 313 is used to discharge the air generated from the winding core 21, and the baffle 314 is used to prevent the electrolyte and other materials inside the battery from being sprayed out.
The cover plate 31 is provided with an insulating device 32, in this embodiment, the insulating device 32 is preferably in a ring structure, and the insulating device 32 is provided with a through groove 321. The cover plate 31 is covered on the opening of the shell 11, the baffle 314 is positioned in the accommodating cavity, the insulating device 32 is clamped into the opening, and the through groove 321 can provide a certain margin when the insulating device 32 is assembled with the shell 11, so that the cover plate 31 is convenient to mount on the shell 11 or detach from the shell 11; the inside of the insulating device 32 is propped against one side of the negative electrode tab, the insulating device 32 pushes the negative electrode tab to the first insulating plate, the negative electrode tab is far away from the shell 11, and current of the negative electrode tab is prevented from being led to the shell 11. The positive electrode post 311 is electrically connected to the positive electrode connecting piece 221, and the negative electrode post 312 is electrically connected to the negative electrode connecting piece 231. The cover plate 31 is sleeved with the sealing rubber ring, the tightness of connection between the cover plate 31 and the shell 11 is improved, electrolyte leakage of the battery in the use process is avoided, and the sealing rubber ring isolates the contact between the cover plate 31 and the shell 11, so that positive electricity on the shell 11 cannot be conducted onto the cover plate 31.
The cover plate 31 is provided with a liquid injection hole 315, the liquid injection hole 315 penetrates through the cover plate 31 and is communicated with the accommodating cavity, and the liquid injection hole 315 is detachably connected with a sealing nail 316 or a sealing steel ball; electrolyte in the accommodating cavity is filled into the shell 11 through the electrolyte filling hole 315, and after the electrolyte is filled, the electrolyte filling hole 315 is blocked by installing a sealing nail 316 or a sealing steel ball on the electrolyte filling hole 315.
The utility model provides a battery structure, which is characterized in that positive electrode lugs and negative electrode lugs at two ends of a winding core are respectively connected with a positive current collecting disc and a negative current collecting disc, so that current generated by the winding core is led out from positive electrode connecting pieces and negative electrode connecting pieces on the positive current collecting disc and the negative current collecting disc, the positive electrode connecting pieces are positioned on the end face of one end of the positive current collecting disc, one end of the negative electrode connecting pieces extends to bypass the outer side of the winding core, one end of the negative electrode connecting pieces extends to the upper side of one end of the positive current collecting disc, and the positive electrode connecting pieces and the negative electrode connecting pieces can be respectively connected with positive electrode posts and negative electrode posts on a cover plate at the same end of a shell, so that the use requirement that the positive electrode posts and the negative electrode posts of the battery are positioned at the same end is met.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (7)
1. A battery structure, characterized by comprising
The electrolyte storage device comprises a shell, wherein a storage cavity is formed in the shell, an opening is formed in one end of the shell, the opening is communicated with the storage cavity, and electrolyte is filled in the storage cavity;
The winding core is characterized in that two ends of the winding core are respectively provided with a positive electrode lug and a negative electrode lug, the outer side of the winding core is provided with a positive current collecting disc and a negative current collecting disc, the positive current collecting disc is connected with the positive electrode lug, the positive current collecting disc is provided with a positive electrode connecting sheet, the positive electrode connecting sheet is positioned on the end face of one end of the positive current collecting disc, the negative current collecting disc is connected with the negative electrode lug, the negative current collecting disc is provided with a negative electrode connecting sheet, one end of the negative electrode connecting sheet extends around the outer side of the winding core, one end of the negative electrode connecting sheet extends to the upper side of one end of the positive current collecting disc, and the winding core is arranged in the accommodating cavity;
The cover plate is covered and established in the opening part, be equipped with anodal post and negative pole post on the cover plate, anodal post and negative pole post all run through the cover plate, the anodal connection piece is connected with anodal post, the one end and the negative pole post of negative pole connection piece are connected.
2. The battery structure of claim 1, wherein the winding core comprises a first diaphragm, a positive electrode plate, a second diaphragm and a negative electrode plate which are sequentially stacked and wound, the positive electrode tabs are a plurality of, the positive electrode tabs are positioned at the end parts of the positive electrode plate, the negative electrode tabs are a plurality of, and the negative electrode tabs are positioned at the end parts of the negative electrode plate.
3. A battery construction according to claim 2 wherein the positive connection tab is adjacent one side of the positive current collector and the negative connection tab is adjacent the other side of the positive current collector.
4. A battery structure according to claim 3, wherein a first insulating plate is arranged on the outer side of the winding core, the first insulating plate is located between the negative electrode connecting sheet and the winding core, one end of the first insulating plate extends to the end face of one end of the positive current collecting disc, a second insulating plate is arranged in the accommodating cavity, and the second insulating plate is located between the inner wall of the accommodating cavity and the negative current collecting disc.
5. The battery structure of claim 4, wherein the positive current collecting plate is provided with a plurality of first through holes which are arranged at intervals, the negative current collecting plate is provided with a plurality of second through holes which are arranged at intervals, the positive current collecting plate and the positive electrode tab are welded to form a first welding seam, the negative current collecting plate and the negative electrode tab are welded to form a second welding seam, and the outer sides of the positive current collecting plate and the negative current collecting plate are provided with a plurality of gaps which are arranged at intervals.
6. The battery structure of claim 5, wherein the cover plate is provided with a liquid injection hole, the liquid injection hole penetrates through the cover plate, and the liquid injection hole is detachably connected with a sealing nail or a sealing steel ball.
7. A battery structure according to any one of claims 1-5, wherein the cover plate is provided with an insulating device, the insulating device is clamped into the opening, the cover plate is provided with a pressure relief valve, the pressure relief valve is provided with a baffle, and the baffle is located in the accommodating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322869107.7U CN221126196U (en) | 2023-10-25 | 2023-10-25 | Battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322869107.7U CN221126196U (en) | 2023-10-25 | 2023-10-25 | Battery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221126196U true CN221126196U (en) | 2024-06-11 |
Family
ID=91365929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322869107.7U Active CN221126196U (en) | 2023-10-25 | 2023-10-25 | Battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221126196U (en) |
-
2023
- 2023-10-25 CN CN202322869107.7U patent/CN221126196U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant |