CN211295297U - Large-capacity winding type lithium battery - Google Patents
Large-capacity winding type lithium battery Download PDFInfo
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- CN211295297U CN211295297U CN202020360727.1U CN202020360727U CN211295297U CN 211295297 U CN211295297 U CN 211295297U CN 202020360727 U CN202020360727 U CN 202020360727U CN 211295297 U CN211295297 U CN 211295297U
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- electric core
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model belongs to the technical field of lithium batteries, and discloses a large-capacity winding type lithium battery, wherein a plurality of arc-shaped supporting plates are equidistantly welded on the inner wall of a shell, reinforcing rods are welded between the inner sides of the arc-shaped supporting plates and the inner wall of the shell, and an end cover is fixed at the upper end of the shell through threads; the casing is internally provided with an electric core, the electric core is wound with an anode layer and a cathode layer, a diaphragm is clamped between the anode layer and the cathode layer, the center of the electric core is wound with a cross-shaped insulating column, and through holes are uniformly distributed on the surface of the cross-shaped insulating column. The utility model discloses a plurality of arc backup pads in the casing can support spacing to inside electric core, have improved the stability of placing of electric core, avoid taking place to rock the damage; through add in the middle of electric core and establish cross insulated column and can prop up a through-hole at the central authorities of electric core, make things convenient for the heat dissipation in the middle of the electric core when guaranteeing electric core coiling compactness, the through-hole on cross insulated column surface can improve the radiating effect.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell, especially, relate to a large capacity coiling type lithium cell.
Background
At present: the winding battery is a battery formed by electric cores formed by combination in a winding mode, has super-strong high-rate discharge capacity, good working capacity in a partial charge state, no free electrolyte, capability of being placed in any direction for working, firm structure and strong shock resistance, and is widely applied to the fields of vehicle starting, automobile emergency power supply, generator starting, hybrid electric automobiles and solar energy storage. The existing winding type battery is not provided with a heat dissipation structure, so that the winding type battery is easily damaged due to high temperature in use, and the service life is influenced. And the lithium battery components inside the existing winding type high-power lithium ion battery are all scattered in the shell, so that the structural strength is low, and the lithium battery components are easy to damage when being shaken.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) the existing winding type battery is easy to damage due to high temperature in use, and the service life is influenced.
(2) The lithium battery components inside the existing winding type high-power lithium ion battery are all scattered in the shell, the structural strength of the lithium battery components is low, and the lithium battery components are easy to shake and damage.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model provides a large capacity coiling formula lithium cell.
The utility model discloses a realize like this, a large capacity coiling type lithium cell is provided with:
a housing;
a plurality of arc-shaped supporting plates are welded on the inner wall of the shell at equal intervals, reinforcing rods are welded between the inner sides of the arc-shaped supporting plates and the inner wall of the shell, and an end cover is fixed at the upper end of the shell through threads;
the battery shell is internally provided with a battery cell in a sleeved mode, the battery cell is provided with an anode layer and a cathode layer in a winding mode, a diaphragm is arranged between the anode layer and the cathode layer in a clamping mode, the center of the battery cell is provided with a cross-shaped insulating column in a winding mode, and through holes are evenly distributed in the surface of the cross-shaped insulating column.
Further, the reinforcing rods are provided in plurality, and the plurality of reinforcing rods are arranged in a zigzag shape.
Furthermore, a limiting bin is arranged in the middle of the inner side of the end cover, and a protective plate is placed on the inner side of the limiting bin.
Furthermore, the upper end of the end cover is embedded with a positive tab and a negative tab, and the positive tab and the negative tab are respectively connected with the anode layer and the cathode layer inside the shell through connecting wires.
Furthermore, an interlayer is arranged in the middle of the outer wall of the shell, and a flame-retardant material layer is filled in the interlayer.
Further, the winding part of the outermost layer of the battery core is a cathode layer, and the joint of the outer end of the cathode layer is fixed through adhesive tape.
Combine foretell all technical scheme, the utility model discloses the advantage that possesses and positive effect are:
(1) the utility model discloses a plurality of arc backup pads in the casing can support spacing to inside electric core, have improved the stability of placing of electric core, avoid taking place to rock the damage; through add in the middle of electric core and establish cross insulated column and can prop up a through-hole at the central authorities of electric core, make things convenient for the heat dissipation in the middle of the electric core when guaranteeing electric core coiling compactness, the through-hole on cross insulated column surface can improve the radiating effect.
(2) The utility model discloses a stiffener that is provided with a plurality of zigzag arrangements can carry out the outrigger to the arc backup pad, has improved the stability can of arc backup pad.
(3) The utility model discloses a protection shield can protect electric core upper end, prevents to shake and collides with, can avoid rocking about the protection shield through spacing storehouse.
(4) The utility model discloses a positive pole ear and negative pole ear can be used for the output of electric quantity, convenient and external line or the connection that connects.
(5) The utility model discloses a flame retardant material layer can play flame retardant efficiency, has improved the fire resistance of whole shell.
(6) The utility model discloses a with the cathode layer as outmost ending, solved current through the interlayer ending, improved the problem of the quantity of interlayer, the electric core space utilization who makes simultaneously improves.
Drawings
Fig. 1 is a schematic view of a large-capacity wound lithium battery according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of an arc-shaped supporting plate provided by an embodiment of the present invention.
Fig. 3 is a schematic structural view of a cross-shaped insulating column according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a cell structure provided in an embodiment of the present invention.
Fig. 5 is a schematic diagram of a diaphragm structure provided by an embodiment of the present invention.
In the figure: 1. a housing; 2. a layer of flame retardant material; 3. a protection plate; 4. a positive tab; 5. a negative tab; 6. a limiting bin; 7. an end cap; 8. an interlayer; 9. an electric core; 10. an arc-shaped support plate; 11. a reinforcing bar; 12. a cross-shaped insulating column; 13. a through hole; 14. adhesive tape paper; 15. an anode layer; 16. a cathode layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
To the problem that prior art exists, the utility model provides a large capacity coiling formula lithium cell, it is right to combine the figure below the utility model discloses do detailed description.
A plurality of arc-shaped supporting plates 10 are welded on the inner wall of the shell 1 at equal intervals, reinforcing rods 11 are welded between the inner sides of the arc-shaped supporting plates 10 and the inner wall of the shell 1, and an end cover 7 is fixed at the upper end of the shell 1 through threads; the battery cell 9 is sleeved in the shell 1, the battery cell 9 is provided with an anode layer 15 and a cathode layer 16 in a winding mode, the diaphragm 8 is clamped between the anode layer 15 and the cathode layer 16, the center of the battery cell 9 is provided with a cross-shaped insulating column 12 in a winding mode, and through holes 13 are evenly distributed in the surface of the cross-shaped insulating column 12.
Preferably, the reinforcing bar 11 is provided in plurality, and the plurality of reinforcing bars 11 are arranged in a zigzag shape. The reinforcing rods arranged in the zigzag mode can stably support the arc-shaped supporting plate, and stability of the arc-shaped supporting plate is improved.
Preferably, a limiting bin 6 is arranged in the middle of the inner side of the end cover 7, and a protective plate 3 is placed on the inner side of the limiting bin 6. Can protect electric core upper end through the protection shield, prevent that vibrations from colliding with, rock about can avoiding the protection shield through spacing storehouse.
Preferably, the positive tab 4 and the negative tab 5 are embedded in the upper end of the end cap 7, and the positive tab 4 and the negative tab 5 are respectively connected with the anode layer and the cathode layer inside the casing through connecting wires. The positive electrode lug and the negative electrode lug can be used for outputting electric quantity, and are convenient to be connected with an external circuit or a connector.
Preferably, the middle of the outer wall of the shell 1 is provided with an interlayer, and the interlayer is filled with the flame retardant material layer 2. The flame-retardant material layer can play a flame-retardant role, and the fire resistance of the whole shell is improved.
Preferably, the outermost winding part of the battery cell 9 is a cathode layer 16, and the joint of the outer end of the cathode layer is fixed by adhesive tape 14. Through regarding the cathode layer as outmost ending, the problem that the quantity of the interlayer is improved due to the existing ending of the interlayer is solved, and the space utilization rate of the battery cell is improved.
The utility model discloses a theory of operation is: the utility model discloses when using, twine electric core 9 in the cross insulated column 12 outside, can prop up a space through cross insulated column 12 at the central authorities of electric core 9 and open, make things convenient for the heat dissipation in the middle of electric core 9 when guaranteeing electric core coiling compactness, through-hole 13 on cross insulated column surface can improve the radiating effect. The outermost periphery of the battery cell 9 is terminated by a cathode layer 16, and the joint of the outer end of the cathode layer 16 is fixed by adhesive tape 14. Inside putting into casing 1 with good electric core 9 of winding, can support spacingly through a plurality of arc backup pads 10 in casing 1 to inside electric core, improved the stability of placing of electric core, avoid taking place to rock the damage. Place protection shield 3 in the middle of electric core upper end, lock end cover 7 for protection shield 3 is located the spacing storehouse 6 of end cover 7. The positive electrode tab 4 and the negative electrode tab 5 at the upper end of the end cover 7 are connected with the anode layer 15 and the cathode layer 16 of the battery cell 9 through connecting circuits, and the positive electrode tab 4 and the negative electrode tab 5 are connected with an external circuit to supply power.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.
Claims (6)
1. A large capacity winding type lithium battery, characterized in that the large capacity winding type lithium battery is provided with:
a housing;
a plurality of arc-shaped supporting plates are welded on the inner wall of the shell at equal intervals, reinforcing rods are welded between the inner sides of the arc-shaped supporting plates and the inner wall of the shell, and an end cover is fixed at the upper end of the shell through threads;
the battery shell is internally provided with a battery cell in a sleeved mode, the battery cell is provided with an anode layer and a cathode layer in a winding mode, a diaphragm is arranged between the anode layer and the cathode layer in a clamping mode, the center of the battery cell is provided with a cross-shaped insulating column in a winding mode, and through holes are evenly distributed in the surface of the cross-shaped insulating column.
2. A large capacity rolled lithium battery as claimed in claim 1, wherein the reinforcing bars are provided in plurality, and the plurality of reinforcing bars are arranged in a zigzag shape.
3. A large capacity coiled lithium battery as claimed in claim 1, wherein a limiting bin is provided in the middle of the inner side of the end cap, and a protection plate is placed inside the limiting bin.
4. A large capacity coiled lithium battery as claimed in claim 1, wherein the end cap has a positive tab and a negative tab embedded in the upper end thereof, and the positive tab and the negative tab are connected to the anode layer and the cathode layer inside the case respectively through connection wires.
5. A large capacity coiled lithium battery as claimed in claim 1, wherein an interlayer is provided in the middle of the outer wall of the case, and the interlayer is filled with a flame retardant material layer.
6. The high capacity coiled lithium battery as claimed in claim 1, wherein the outermost layer of the core is a cathode layer, and the joint of the outer end of the cathode layer is fixed by adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020360727.1U CN211295297U (en) | 2020-03-20 | 2020-03-20 | Large-capacity winding type lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020360727.1U CN211295297U (en) | 2020-03-20 | 2020-03-20 | Large-capacity winding type lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211295297U true CN211295297U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020360727.1U Active CN211295297U (en) | 2020-03-20 | 2020-03-20 | Large-capacity winding type lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211295297U (en) |
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2020
- 2020-03-20 CN CN202020360727.1U patent/CN211295297U/en active Active
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