CN207368015U - A kind of lithium battery - Google Patents
A kind of lithium battery Download PDFInfo
- Publication number
- CN207368015U CN207368015U CN201721171460.6U CN201721171460U CN207368015U CN 207368015 U CN207368015 U CN 207368015U CN 201721171460 U CN201721171460 U CN 201721171460U CN 207368015 U CN207368015 U CN 207368015U
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- Prior art keywords
- battery
- shell
- plate assembly
- cathode cover
- cover plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a kind of lithium battery, the device includes shell, battery battery core, negative terminal and cathode cover plate assembly, the battery battery core, the axial direction of negative terminal and cathode cover plate assembly along shell is set gradually inside the shell, the cathode cover plate assembly is located at the end of the shell and is used for sealed cell battery core, so, negative terminal is directly welded on battery battery core, reduce the process of welding, at the same time, cathode cover plate assembly is by being flexible coupling and battery cell welding, shell is put into after folding, the inner space of battery can effectively be saved, be conducive to improve the internal capacity of battery, increase the energy density of battery, and, the production process of the battery structure is less, simple production process, cost of the efficiency of production with reducing production can be lifted.
Description
Technical field
The utility model belongs to technical field of lithium ion, and in particular to a kind of lithium battery.
Background technology
At present, new energy industry development is rapid, and in the market is also increasing to the demand of power battery, however, existing
Power battery structure is complicated, and production process is tediously long, and productive temp is slow, cycle length, and first-pass yield is low, costly；Parts are more,
Energy density is low.Wherein, cylindrical battery shell mostly uses both ends open, and the li battery shell of this both ends open is assembling
During easily deform so that it is difficult to cause positive and negative anodes cover board and shell to assemble, in addition, pole needs the company of welding with cover board
Connect, welding sequence causes scrappage in cell production process high, and welding equipment cost is higher.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model aims to provide a kind of lithium battery.
What the technical solution of the utility model was realized in：
The utility model embodiment provides a kind of lithium battery, which includes shell, battery battery core, negative terminal and positive cover
Plate component, the axial direction of the battery battery core, negative terminal and cathode cover plate assembly along shell are set gradually inside the shell, the cathode
Cover plate assembly is located at the end of the shell and is used for sealed cell battery core, and the cathode cover plate assembly includes connection sheet, institute
Connection sheet is stated to be used to pack up the cathode cover plate assembly for foldable structure.
In such scheme, the shell includes outer cover body and anode head cover, and the anode head cover is fixed at described
One end of outer cover body, the other end of the outer cover body is open end, is offered on the anode head cover and coordinates negative terminal
Installation through-hole.
In such scheme, the negative terminal includes pole body and battery core welded plate, and the battery core welded plate is arranged on pole
One end of column body and and battery cell welding, the pole body through installation through-hole stretch out shell.
In such scheme, the pole body sets external screw thread, and the end face that the pole body stretches out shell sets welding
Step and fluid injection through hole.
In such scheme, the cathode cover plate assembly further includes cathode cover board, positive terminal and connection sheet, the positive terminal weldering
The center for being arranged on the cathode cover board is connect, the side that the connection sheet is arranged on cathode cover board is used to weld battery battery core.
In such scheme, explosionproof hole is offered on the cathode cover board, explosion-proof valve is set in the explosionproof hole.
In such scheme, it further includes retainer, and the retainer is arranged on the battery battery core and cathode cover plate assembly
Between, the retainer includes the outer support ring being arranged concentrically and inside support ring, the outer support ring and inside support ring pass through branch
Blade connects, and the outer support ring is the ring type structure of a side opening, and the opening of the outer support ring coordinates with the connection sheet
Set.
Compared with prior art, the utility model embodiment provides a kind of lithium battery, which includes shell, battery electricity
Core, negative terminal and cathode cover plate assembly, the battery battery core, negative terminal and cathode cover plate assembly are set gradually along the axial direction of shell
Inside the shell, the cathode cover plate assembly is located at the end of the shell and is used for sealed cell battery core, the cathode cover board
Component includes connection sheet, and the connection sheet is used to pack up the cathode cover plate assembly for foldable structure, in this way, negative terminal directly welds
It is connected on battery battery core, reduces the process of welding, meanwhile, cathode cover plate assembly is by being flexible coupling and battery cell welding, folding
Poststack is put into shell, can effectively save the inner space of battery, is conducive to improve the internal capacity of battery, increases the energy of battery
Metric density, moreover, the production process of the battery structure is less, simple production process, the efficiency that can lift production is given birth to reducing
The cost of production.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of lithium battery of the utility model embodiment；
Fig. 2 is the structure diagram of shell in a kind of lithium battery of the utility model embodiment；
Fig. 3 is the structure diagram of negative terminal in a kind of lithium battery of the utility model embodiment.
Reference numeral is as follows：
1 --- --- --- anode head cover, 121 --- installation through-hole, 2 --- battery electricity of outer cover body, 12 of shell, 11
Core, 3 --- negative terminal, 31 --- pole body, 311 --- welding step, the welding of 312 --- fluid injection through hole, 32 --- battery cores
Plate, 4 --- cathode cover plate assembly, 41 --- cathode cover board, 42 --- positive terminal, 43 --- connection sheet, 5 --- retainer,
51 --- outer support ring, 52 --- inside support ring, 53 --- support chips.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, is not used to limit the utility model.
The utility model embodiment provides a kind of lithium battery, and as shown in Figs. 1-3, it includes shell 1, battery battery core 2, anode
Column 3 and cathode cover plate assembly 4, the battery battery core 2, negative terminal 3 and cathode cover plate assembly 4 are set gradually along the axial direction of shell 1
In shell 1, the cathode cover plate assembly 4 is located at the end of the shell 1 and is used for sealed cell battery core 2, the cathode
Cover plate assembly 4 includes connection sheet 43, and the connection sheet 43 is used to pack up the cathode cover plate assembly 4 for foldable structure.
Negative terminal 3 is directly welded on battery battery core 2, reduces the process of welding, meanwhile, cathode cover plate assembly 4 passes through
It is flexible coupling and battery cell welding, is put into shell after folding, can effectively save the inner space of battery, is conducive to improve battery
Internal capacity, increase the energy density of battery, moreover, the production process of the battery structure is less, simple production process can be with
Lift cost of the efficiency of production with reducing production.
Wherein, the cathode cover plate assembly 4 further includes cathode cover board 41 and positive terminal 42, and the welding of positive terminal 42 is set
At the center of the cathode cover board 41, the side that the connection sheet 43 is arranged on cathode cover board 41 is used to weld battery battery core 2.Institute
Connection sheet 43 is stated to be flexible material and be folding structure.Explosionproof hole, the explosionproof hole are offered on the cathode cover board 41
Interior setting explosion-proof valve.
Positive terminal 42 and cathode cover board 41 are integrated, while cathode cover board 41 passes through folding connection sheet 43 and battery electricity
Core 2 connects, and reduces the parts number of inside battery, increases the battery core length of battery, lifts battery capacity, avoid pole with
The problem of battery caused by cover board failure welding is scrapped.
Explosionproof hole is provided with cathode cover board 41, can make the explosion-proof valve that is welded at this quick-fried when cell pressure is excessive
Open, play the role of safeguard protection.
Wherein, the shell 1 includes outer cover body 11 and anode head cover 12, and the anode head cover 12 is fixed at described
One end of outer cover body 11, the other end of the outer cover body 11 is open end, and it is negative that cooperation is offered on the anode head cover 12
The installation through-hole 121 of pole 3.
Wherein, the negative terminal 3 includes pole body 31 and battery core welded plate 32, and the battery core welded plate 32 is arranged on pole
One end of column body 31 and welded with battery battery core 2, the pole body 31 stretches out shell 1 through installation through-hole 121.
Anode head cover 12 is integrally formed with outer cover body 11, and installation through-hole 121 is opened up on anode head cover 12, makes electricity
Pond shell mechanism is more stable, avoids and the problem of battery case 1 deforms occurs in assembling cell process, meanwhile, using shell sheet
Body 11 is integrally formed with anode head cover 12, can reduce by a welded cover plate, so that production cost is reduced, directly in installation through-hole
The welding of negative terminal 3 is carried out at 121, simplifies battery assembly process, the technique for optimizing production, improves the efficiency of production.
Wherein, the pole body 31 sets external screw thread, and the end face that the pole body 31 stretches out shell 1 sets welding bench
Rank 311 and fluid injection through hole 312.
Fluid injection through hole 312 is directly opened up on pole body 31, avoids opening fluid injection through hole 312 on the cover board, Neng Goujian
Change the mode of fluid injection, make fluid injection process more convenient, be conducive to shorten the time of fluid injection, pole is direct by battery core welded plate 32
Welded with battery battery core 2, it is possible to by the battery core maximum length in battery container, be conducive to be lifted the capacity and energy of battery
Density.
Wherein, it further includes retainer 5, and retainer 5 is arranged between the battery battery core 2 and cathode cover plate assembly 4, institute
Retainer 5 is stated including the outer support ring 51 being arranged concentrically and inside support ring 52, the outer support ring 51 and inside support ring 52 to pass through
Connecting plate 53 connects, and the outer support ring 51 is the ring type structure of a side opening, the opening of the outer support ring 51 and the company
Contact pin 43 is equipped with.
The outer support ring 51 of retainer 5 coordinates for battery battery core 2, and inside support ring 52 is used to support positive terminal 42, keeps
Frame 5 is arranged between battery battery core 2 and cathode cover plate assembly 4, and the ring type structure that outer support ring 51 is a side opening, makes dress
Connection sheet 43 can be folded during with cathode cover plate assembly 4 and be put into shell 1, while matched somebody with somebody after 41 bending of cathode cover board with retainer 5
Close, play the role of insulation protection.
The course of work of this programme is：In Production Process of Lithium Battery, the battery battery core 2 for being welded with negative terminal 3 is put into
Outer cover body 11, the pole body 31 of negative terminal 3 stretches out the installation through-hole 121 of anode head cover 12, along the edge of installation through-hole 121
Negative terminal 3 and shell 1 are welded, is then placed in retainer 5, cathode cover plate assembly 4 is finally installed, connection sheet 43 is welded on battery
One end of battery core 2, and connection sheet 43 is folded in the opening of outer support ring 51, positive terminal 42 is inserted into inside support ring 52, welding
Cathode cover board 41, that is, complete the assembling of lithium battery electric core.
Compared with prior art, the utility model embodiment provides a kind of lithium battery, which includes shell, battery electricity
Core, negative terminal and cathode cover plate assembly, the battery battery core, negative terminal and cathode cover plate assembly are set gradually along the axial direction of shell
Inside the shell, the cathode cover plate assembly is located at the end of the shell and is used for sealed cell battery core, the cathode cover board
Component includes connection sheet, and the connection sheet 4 is used to pack up the cathode cover plate assembly for foldable structure, in this way, negative terminal is direct
Be welded on battery battery core, reduce the process of welding, meanwhile, cathode cover plate assembly by being flexible coupling and battery cell welding,
Shell is put into after folding, can effectively save the inner space of battery, is conducive to improve the internal capacity of battery, increases battery
Energy density, moreover, the production process of the battery structure is less, simple production process, can lift efficiency and the reduction of production
The cost of production.
The above, is only the preferred embodiment of the utility model, is not intended to limit the protection of the utility model
Scope.
Claims (7)
- A kind of 1. lithium battery, it is characterised in that including shell, battery battery core, negative terminal and cathode cover plate assembly, the battery electricity The axial direction of core, negative terminal and cathode cover plate assembly along shell is set gradually inside the shell, and the cathode cover plate assembly is positioned at described The end of shell and it is used for sealed cell battery core, the cathode cover plate assembly includes connection sheet, and the connection sheet is tied to fold Structure is used to pack up the cathode cover plate assembly.
- 2. a kind of lithium battery according to claim 1, it is characterised in that the shell includes outer cover body and anode top Lid, the anode head cover are fixed at one end of the outer cover body, and the other end of the outer cover body is open end, described The installation through-hole for coordinating negative terminal is offered on anode head cover.
- 3. a kind of lithium battery according to claim 2, it is characterised in that the negative terminal includes pole body and battery core is welded Fishplate bar, the battery core welded plate be arranged on one end of pole body and and battery cell welding, the pole body through peace Fill through hole and stretch out shell.
- 4. a kind of lithium battery according to claim 3, it is characterised in that the pole body sets external screw thread, the pole The end face that column body stretches out shell sets welding step and fluid injection through hole.
- 5. a kind of lithium battery according to claim 1, it is characterised in that the cathode cover plate assembly further includes cathode cover board And positive terminal, the positive terminal welding are arranged on the center of the cathode cover board, the connection sheet is arranged on the side of cathode cover board Face is used to weld battery battery core.
- 6. a kind of lithium battery according to claim 5, it is characterised in that offer explosionproof hole on the cathode cover board, institute State and explosion-proof valve is set in explosionproof hole.
- 7. a kind of lithium battery according to claim 1, it is characterised in that it further includes retainer, and the retainer is set Between the battery battery core and cathode cover plate assembly, the retainer includes outer support ring and the inside support ring being arranged concentrically, The outer support ring is connected with inside support ring by connecting plate, and the outer support ring is the ring type structure of a side opening, described outer The opening of support ring is equipped with the connection sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721171460.6U CN207368015U (en) | 2017-09-13 | 2017-09-13 | A kind of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721171460.6U CN207368015U (en) | 2017-09-13 | 2017-09-13 | A kind of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207368015U true CN207368015U (en) | 2018-05-15 |
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ID=62348477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721171460.6U Active CN207368015U (en) | 2017-09-13 | 2017-09-13 | A kind of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207368015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524747A (en) * | 2018-11-26 | 2019-03-26 | 湖南衡盈电子科技有限公司 | Portable battery |
-
2017
- 2017-09-13 CN CN201721171460.6U patent/CN207368015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524747A (en) * | 2018-11-26 | 2019-03-26 | 湖南衡盈电子科技有限公司 | Portable battery |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 056000 dongchangyuan village, Wu'an city, Handan City, Hebei Province Patentee after: Hebei Gree titanium new energy Co.,Ltd. Patentee after: Gree titanium new energy Co.,Ltd. Address before: 056000 dongchangyuan village, Wu'an city, Handan City, Hebei Province Patentee before: HEBEI YINLONG NEW ENERGY Co.,Ltd. Patentee before: YINLONG ENERGY Co.,Ltd. |