CN210245651U - Novel columnar battery - Google Patents
Novel columnar battery Download PDFInfo
- Publication number
- CN210245651U CN210245651U CN201920706347.6U CN201920706347U CN210245651U CN 210245651 U CN210245651 U CN 210245651U CN 201920706347 U CN201920706347 U CN 201920706347U CN 210245651 U CN210245651 U CN 210245651U
- Authority
- CN
- China
- Prior art keywords
- rivet
- battery
- negative electrode
- cover plate
- positive electrode
- 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
Links
Images
Classifications
-
- 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
-
- 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
Abstract
The utility model discloses a novel column battery, including casing, electric core, apron, the apron will electric core encapsulate in the cavity of casing, the apron is opened there is the rivet hole, rivet hole department riveting has the rivet, the rivet hole with be equipped with the insulating layer between the rivet, the apron is opened there is the notes liquid hole, and electrolyte warp notes liquid hole pours into in the battery, it is equipped with the sealing member to annotate liquid hole department, the sealing member is with the shutoff of electrolyte in the battery. The utility model discloses novel structure, design are ingenious, directly weld the negative pole ear of electric core in the apron, and the mesopore diameter of electric core can be accomplished to minimum, and the center of electric core can be convoluteed more closely for the energy density of battery is bigger. Compare in current cylinder battery, the utility model discloses can do more carefully littleer when guaranteeing capacity.
Description
Technical Field
The utility model relates to a lithium ion battery technical field, in particular to novel column battery.
Background
The metal shell cylindrical lithium ion battery is a lithium ion battery commonly used in the market, has stable output voltage, safe use (combustion or explosion caused by improper operations such as overcharge, overdischarge, short circuit and the like can not be caused), wide working temperature range and environmental friendliness compared with other types of batteries, and is widely applied to electronic products such as digital cameras, electric toys and the like. As shown in fig. 10 and 11, in the conventional metal-shell cylindrical lithium ion battery, a middle hole is formed in the middle of a battery cell, a welding rod needs to pass through the middle hole, and a negative electrode tab of the battery cell is welded to the bottom of a battery shell, so that the welding difficulty is high; in addition, the height direction of the metal-shell cylindrical lithium ion battery is greatly limited due to the influence of the operating length of the welding rod, and the metal-shell cylindrical lithium ion battery cannot be designed to be extended in the height direction according to the structure of a product. Meanwhile, in the conventional metal-clad cylindrical lithium ion battery with the diameter of phi 4, in order to facilitate welding of the negative electrode tab of the battery cell to the bottom of the battery shell by a welding rod, the diameter of the middle hole of the battery cell is 2.5mm, and the ratio of the middle hole of the battery cell to the diameter of the battery is 5/8, namely, the volume occupied by the middle hole of the battery cell in the metal-clad cylindrical lithium ion battery is more than half, only less than half of the volume is left for the function of the battery, and more than half of the space in the battery is wasted. In addition, along with the development of the technology, the electronic products are also miniaturized, the metal shell cylindrical lithium ion battery is made thinner and thinner along with the trend, the diameter of the battery is smaller and smaller, and meanwhile, along with the increasing diversity of the functions of the electronic products, the requirement on the capacity of the battery is also higher and higher. How to improve the capacity of the cylindrical lithium ion battery while making the cylindrical lithium ion battery thinner has become a technical problem restricting the miniaturization development of electronic products.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a novel column battery.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a novel columnar battery comprises a shell, an electric core and a cover plate, wherein the electric core is packaged in a cavity of the shell by the cover plate, a rivet hole is formed in the cover plate, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the cover plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the cover plate, and a middle hole is formed in the winding center of the battery cell.
A novel columnar battery comprises a shell, an electric core, a cover plate and a bottom plate, wherein the shell is provided with an upper shell opening and a lower shell opening, the cover plate is covered on the upper shell opening of the shell in a sealing manner, the bottom plate is covered on the lower shell opening of the shell in a sealing manner, the electric core is encapsulated in a cavity of the shell by the cover plate and the bottom plate, the cover plate is provided with a rivet hole, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the bottom plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the bottom plate, and a middle hole is formed in the winding center of the battery cell.
A novel columnar battery comprises a shell, an electric core, a cover plate and a bottom plate, wherein the shell is provided with an upper shell opening and a lower shell opening;
the cover plate is provided with a rivet hole, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the cover plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the cover plate, and a middle hole is formed in the winding center of the battery cell.
A novel columnar battery comprises a shell, an electric core, a cover plate and a bottom plate, wherein the shell is provided with an upper shell opening and a lower shell opening, the cover plate is covered on the upper shell opening of the shell in a sealing manner, the bottom plate is covered on the lower shell opening of the shell in a sealing manner, the electric core is encapsulated in a cavity of the shell by the cover plate and the bottom plate, the cover plate is provided with a rivet hole, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the bottom plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the cover plate, and a middle hole is formed in the winding center of the battery cell.
A novel columnar battery comprises a shell, an electric core, a cover plate and a bottom plate, wherein the shell is provided with an upper shell opening and a lower shell opening;
the cover plate is provided with a rivet hole, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the cover plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the bottom plate, and a middle hole is formed in the winding center of the battery cell.
A novel columnar battery comprises a shell, an electric core, a cover plate and a bottom plate, wherein the shell is provided with an upper shell opening and a lower shell opening;
the cover plate is provided with a rivet hole, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the cover plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the inner wall of the shell, and a middle hole is formed in the winding center of the battery cell.
Further, the diameter of the mesopore ranges from 0 mm to 1.5 mm.
The beneficial effects of the utility model reside in that: the utility model discloses novel structure, design are ingenious, directly weld the negative pole ear of electric core in the apron, abandon the negative pole ear welding mode of current cylinder battery, and the mesopore of electric core no longer plays the effect in welding rod passageway, and the mesopore diameter in electric core can accomplish minimumly, and the center of electric core can be convoluteed more closely for the energy density of battery is bigger. Compare in current cylinder battery, the utility model discloses can do more carefully littleer when guaranteeing capacity.
Drawings
Fig. 1 is a schematic cross-sectional view of a first embodiment of the present invention.
Fig. 2 is a schematic diagram of a first embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a second embodiment of the present invention.
Fig. 4 is a schematic diagram of a second embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view of a third embodiment of the present invention.
Fig. 6 is a schematic diagram of a third embodiment of the present invention.
Fig. 7 is a schematic cross-sectional view of a fourth embodiment of the present invention.
Fig. 8 is a schematic cross-sectional view of a fifth embodiment of the present invention.
Fig. 9 is a schematic cross-sectional view of a sixth embodiment of the present invention.
Fig. 10 is a sectional view of a conventional cylindrical battery.
Fig. 11 is a schematic structural view of a conventional cylindrical battery.
Reference numerals:
10\10A \10B \10C \10D \10E and a shell;
20\20A \20B \20C \20D \20E and a battery cell;
201\201A \201B \201C \201D \201E and a middle hole;
21\21A \21B \21C \21D \21E and a positive electrode belt;
22\22A \22B \22C \22D \22E and a negative electrode belt;
23\23A \23B \23C \23D \23E and a diaphragm;
24\24A \24B \24C \24D \24E and a positive tab;
25\25A \25B \25C \25D \25E and a negative electrode lug;
30\30A \30B \30C \30D \30E and a cover plate;
40\40A \40B \40C \40D \40E and a rivet;
50\50A \50B \50C \50D \50E and an insulating layer;
60\60A \60B \60C \60D \60E and a sealing element;
70A \70B \70C \70D \70E and a bottom plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows: a novel columnar battery comprises a shell 10, a battery core 20 and a cover plate 30, wherein the battery core 20 is encapsulated in a cavity of the shell 10 by the cover plate 30, a rivet hole is arranged on the cover plate 30, a rivet 40 is riveted at the rivet hole, an insulating layer 50 is arranged between the rivet hole and the rivet 40,
the cover plate 30 is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element 60 is arranged at the liquid injection hole, and the sealing element 60 seals the electrolyte in the battery; the casing 10 and the cover plate 30 are made of the same material, the cover plate 30 is specifically made of aluminum, but not limited to aluminum, and the cover plate 30 may also be made of other materials such as nickel-plated steel; the seal 60 is specifically a steel ball, but is not limited to a steel ball; the insulating layer 50 is made of a non-conductive substance, specifically a non-conductive glue substance;
the battery cell 20 comprises a positive electrode belt 21 and a negative electrode belt 22, a diaphragm 23 is arranged between the positive electrode belt 21 and the negative electrode belt 22, the positive electrode belt 21, the diaphragm 23 and the negative electrode belt 22 are spirally wound into the battery cell, one end of a positive electrode tab 24 is connected with the positive electrode belt 21, the other end of the positive electrode tab 24 is connected with a rivet 40, one end of a negative electrode tab 25 is connected with the negative electrode belt 22, and the other end of the negative electrode tab 25 is connected with the cover plate 30. The positive pole area 21 is including the mass flow body aluminium foil, the mass flow body is scribbled anodal active material on the aluminium foil, one side department on mass flow body aluminium foil top is the empty aluminium foil of positive pole, anodal ear 24 weld in on the empty aluminium foil of positive pole. The positive electrode active material includes: one or a mixture of more of lithium cobaltate, lithium manganate, lithium iron phosphate, lithium cobalt nickel manganate and lithium nickel nickelate. The negative strip 22 comprises a current collector copper foil, negative active materials are coated on the current collector copper foil, and the negative lug 25 is welded on the negative empty copper foil. The negative electrode active material includes: one or more of graphite, mesocarbon microbeads, lithium titanate and silicon carbon materials.
A middle hole 201 is formed in the winding center of the battery cell, and the diameter range of the middle hole 201 is 0-1.5 mm. The positive tab 24 is connected to the positive strap 21 on the outer ring of the battery cell 20, the negative tab 25 is connected to the negative strap 22 on the outer ring of the battery cell 20, the middle hole 201 of the battery cell 20 no longer functions as a welding rod passageway, and the diameter of the middle hole 201 can be made extremely small and even close to 0.
When the battery is manufactured, firstly welding the negative electrode tab 25 of the battery cell 20 to the cover plate 30, simultaneously welding the positive electrode tab 24 of the battery cell 20 to the rivet 40 of the cover plate 30, putting the battery cell 20 into the shell 10, and then welding the cover plate 30 to the shell 10 by adopting a laser welding mode; after the welding is completed, the electrolyte is injected into the battery through the electrolyte injection hole, and after the step of injecting the electrolyte is completed, the sealing element 60 is pressed into the electrolyte injection hole so as to seal the electrolyte injection hole and prevent the electrolyte from leaking.
Example two: a novel columnar battery comprises a shell 10A, an electric core 20A, a cover plate 30A and a bottom plate 70A, wherein the shell 10A is provided with an upper shell opening and a lower shell opening, the cover plate 30A covers the upper shell opening of the shell 10A, the bottom plate 70A covers the lower shell opening of the shell 10A, the electric core 20A is packaged in a cavity of the shell 10A through the cover plate 30A and the bottom plate 70A, a rivet hole is formed in the cover plate 30A, a rivet 40A is riveted at the rivet hole, an insulating layer 50A is arranged between the rivet hole and the rivet 40A, the shell 10A and the cover plate 30A are made of the same material, the cover plate 30A is specifically made of aluminum but not limited to aluminum, and the cover plate 30A can also be made of other materials such as nickel-plated steel; the insulating layer 50 is made of a non-conductive substance, specifically a non-conductive glue substance;
the bottom plate 70A is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element 60A is arranged at the liquid injection hole, and the sealing element 60A seals the electrolyte in the battery; the sealing element 60A is specifically a steel ball, but is not limited to a steel ball;
the battery cell 20A includes an anode tape 21A and a cathode tape 22A, a separator 23A is disposed between the anode tape 21A and the cathode tape 22A, the anode tape 21A, the separator 23A and the cathode tape 22A are spirally wound into a battery cell, one end of the anode tab 24A is connected to the anode tape 21A, the other end of the anode tab 24A is connected to a rivet, one end of the cathode tab 25A is connected to the cathode tape 22A, and the other end of the cathode tab 25A is connected to the bottom plate 70A. Anodal area 21A is including the mass flow body aluminium foil, be scribbled anodal active material on the mass flow body aluminium foil, one side department on mass flow body aluminium foil top is the empty aluminium foil of positive pole, anodal ear 24A weld in on the empty aluminium foil of positive pole. The positive electrode active material includes: one or a mixture of more of lithium cobaltate, lithium manganate, lithium iron phosphate, lithium cobalt nickel manganate and lithium nickel nickelate. The negative electrode belt 22A comprises a current collector copper foil, negative active materials are coated on the current collector copper foil, and the negative electrode lug 25A is welded on the negative empty copper foil. The negative electrode active material includes: one or more of graphite, mesocarbon microbeads, lithium titanate and silicon carbon materials.
A middle hole 201A is formed in the winding center of the battery cell, and the diameter range of the middle hole 201A is 0-1.5 mm. The positive tab 24A is connected to the positive strip 21A on the outer ring of the battery cell 20A, the negative tab 25A is connected to the negative strip 22A on the outer ring of the battery cell 20A, the middle hole 201A of the battery cell 20A no longer functions as a welding rod passageway, and the diameter of the middle hole 201A can be made extremely small, even approaching 0.
When the battery is manufactured, firstly, the battery cell 20A is placed in the shell 10A, then the negative electrode tab 25A of the battery cell 20A is welded on the bottom plate 70A, meanwhile, the positive electrode tab 24A of the battery cell 20A is welded on the rivet 40A of the cover plate 30A, and then the cover plate 30A and the bottom plate 70A are respectively welded on the upper shell opening and the lower shell opening of the shell 10A in a laser welding mode; after the welding is completed, the electrolyte is injected into the battery through the electrolyte injection hole at the bottom plate 70A, and after the step of injecting the electrolyte is completed, the sealing element 60A is pressed into the electrolyte injection hole so as to seal the electrolyte injection hole and prevent the electrolyte from leaking.
Example three: a novel columnar battery comprises a shell 10B, a battery cell 20B, a cover plate 30B and a bottom plate 70B, wherein the shell 10B is provided with an upper shell opening and a lower shell opening, the cover plate 30B covers the upper shell opening of the shell 10B, the bottom plate 70B covers the lower shell opening of the shell 10B, and the battery cell 20B is encapsulated in a cavity of the shell 10B by the cover plate 30B; the casing 10B and the cover plate 30B are made of the same material, the cover plate 30B is specifically made of aluminum, but not limited to aluminum, and the cover plate 30B may also be made of other materials such as nickel-plated steel; the sealing element 60B is specifically a steel ball, but is not limited to a steel ball; the insulating layer 50B is made of a non-conductive substance, specifically a non-conductive glue substance;
the cover plate 30B is provided with a rivet hole, a rivet 40B is riveted at the rivet hole, an insulating layer 50B is arranged between the rivet hole and the rivet 40B,
the cover plate 30B is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element 60B is arranged at the liquid injection hole, and the sealing element 60B seals the electrolyte in the battery;
the battery cell 20B comprises a positive electrode strip 21B and a negative electrode strip 22B, a diaphragm 23B is arranged between the positive electrode strip 21B and the negative electrode strip 22B, the positive electrode strip 21B, the diaphragm 23B and the negative electrode strip 22B are spirally wound into the battery cell 20B, one end of a positive electrode tab 24B is connected with the positive electrode strip 21B, the other end of the positive electrode tab 24B is connected with a rivet 40B, one end of a negative electrode tab 25B is connected with the negative electrode strip 22B, and the other end of the negative electrode tab 25B is connected with a cover plate 30B. Anodal area 21B is including the mass flow body aluminium foil, the mass flow body is scribbled anodal active material on the aluminium foil, one side department on mass flow body aluminium foil top is the empty aluminium foil of positive pole, anodal ear 24B weld in on the empty aluminium foil of positive pole. The positive electrode active material includes: one or a mixture of more of lithium cobaltate, lithium manganate, lithium iron phosphate, lithium cobalt nickel manganate and lithium nickel nickelate. The negative electrode belt 22B comprises a current collector copper foil, negative active materials are coated on the current collector copper foil, and the negative electrode lug 25B is welded on the negative empty copper foil. The negative electrode active material includes: one or more of graphite, mesocarbon microbeads, lithium titanate and silicon carbon materials.
A middle hole 201B is formed in the winding center of the battery cell, and the diameter range of the middle hole 201B is 0-1.5 mm. The positive tab 24B is connected to the positive strip 21B on the outer ring of the battery cell 20B, the negative tab 25B is connected to the negative strip 22B on the outer ring of the battery cell 20B, the middle hole 201B of the battery cell 20B no longer plays a role of passing a welding rod, and the diameter of the middle hole 201B can be extremely small and even close to 0.
When the battery is manufactured, firstly, the bottom plate 70B is welded to the lower shell opening of the shell 10B by adopting a laser welding mode, then the battery cell 20B is placed in the shell 10B, the negative electrode lug 25B of the battery cell 20B is welded to the cover plate 30B, meanwhile, the positive electrode lug 24B of the battery cell 20B is welded to the rivet 40B of the cover plate 30B, and then the cover plate 30B is welded to the upper shell opening of the shell 10B by adopting a laser welding mode; after the welding is completed, the electrolyte is injected into the battery through the electrolyte injection hole at the cover plate 30B, and after the step of injecting the electrolyte is completed, the sealing element 60B is pressed into the electrolyte injection hole so as to seal the electrolyte injection hole and prevent the electrolyte from leaking.
Example four: a novel columnar battery comprises a shell 10C, an electric core 20C, a cover plate 30C and a bottom plate 70C, wherein the shell 10C is provided with an upper shell opening and a lower shell opening, the cover plate 30C covers the upper shell opening of the shell 10C, the bottom plate 70C covers the lower shell opening of the shell 10C, the electric core 20C is packaged in a cavity of the shell 10C by the cover plate 30C and the bottom plate 70C, the cover plate 30C is provided with a rivet hole, a rivet 40C is riveted at the rivet hole, an insulating layer 50C is arranged between the rivet hole and the rivet 40C, the shell 10C and the cover plate 30C are made of the same material, the cover plate 30C is specifically made of aluminum but not limited to aluminum, and the cover plate 30C can also be made of other materials such as nickel-plated steel; the insulating layer 50C is made of a non-conductive substance, specifically a non-conductive glue substance;
the bottom plate 70C is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing piece 60C is arranged at the liquid injection hole, and the sealing piece 60C seals the electrolyte in the battery; the sealing element 60C is specifically a steel ball, but is not limited to a steel ball;
the battery cell 20C comprises a positive electrode strip 21C and a negative electrode strip 22C, a diaphragm 23C is arranged between the positive electrode strip 21C and the negative electrode strip 22C, the positive electrode strip 21C, the diaphragm 23C and the negative electrode strip 22C are spirally wound into the battery cell 20C, one end of a positive electrode tab 24C is connected with the positive electrode strip 21C, the other end of the positive electrode tab 24C is connected with a rivet 40C, one end of a negative electrode tab 25C is connected with the negative electrode strip 22C, and the other end of the negative electrode tab 25C is connected with a cover plate 30C. Anodal area 21C is including the mass flow body aluminium foil, be scribbled anodal active material on the mass flow body aluminium foil, one side department on mass flow body aluminium foil top is the empty aluminium foil of positive pole, anodal ear 24C weld in on the empty aluminium foil of positive pole. The positive electrode active material includes: one or a mixture of more of lithium cobaltate, lithium manganate, lithium iron phosphate, lithium cobalt nickel manganate and lithium nickel nickelate. The negative electrode strip 22C comprises a current collector copper foil, negative active materials are coated on the current collector copper foil, and the negative electrode lug 25C is welded on the negative empty copper foil. The negative electrode active material includes: one or more of graphite, mesocarbon microbeads, lithium titanate and silicon carbon materials.
A middle hole 201C is formed in the winding center of the battery cell 20C, and the diameter of the middle hole 201C ranges from 0 mm to 1.5 mm. The positive tab 24C is connected to the positive strip 21C on the outer ring of the battery cell 20C, the negative tab 25C is connected to the negative strip 22C on the outer ring of the battery cell 20C, the middle hole 201C of the battery cell 20C no longer plays a role of a welding rod passageway, and the diameter of the middle hole 201C can be extremely small and even close to 0.
When the battery is manufactured, the bottom plate 70C is welded to the lower shell opening of the shell 10C by laser welding, the battery cell 20C is placed in the shell 10C, the negative electrode tab 25C of the battery cell 20C is welded to the cover plate 30C, the positive electrode tab 24C of the battery cell 20B is welded to the rivet 40C of the cover plate 30C, and the cover plate 30C is welded to the upper shell opening of the shell 10C by laser welding; after the welding is completed, the electrolyte is injected into the battery through the electrolyte injection hole at the bottom plate 70C, and after the step of injecting the electrolyte is completed, the sealing element 60C is pressed into the electrolyte injection hole so as to seal the electrolyte injection hole and prevent the electrolyte from leaking.
Example five: a novel columnar battery comprises a shell 10D, a battery cell 20D, a cover plate 30D and a bottom plate 70D, wherein the shell 10D is provided with an upper shell opening and a lower shell opening, the cover plate 30D covers the upper shell opening of the shell 10D, the bottom plate 70D covers the lower shell opening of the shell 10D, and the battery cell 20D is encapsulated in a cavity of the shell 10D by the cover plate 30D; the casing 10D and the cover plate 30D are made of the same material, the cover plate 30D is specifically made of aluminum, but not limited to aluminum, and the cover plate 30D may also be made of other materials such as nickel-plated steel; the insulating layer 50D is made of a non-conductive substance, specifically a non-conductive glue substance;
the cover plate 30D is provided with a rivet hole, a rivet 40D is riveted at the rivet hole, an insulating layer 50D is arranged between the rivet hole and the rivet 40D,
the cover plate 30D is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing piece 60D is arranged at the liquid injection hole, and the sealing piece 60D seals the electrolyte in the battery; the seal 60D is specifically a steel ball, but is not limited to a steel ball;
electric core 20D is including anodal area 21D, negative pole area 22D, be equipped with diaphragm 23D between anodal area 21D and the negative pole area 22D, anodal area 21D, diaphragm 23D and negative pole area 22D spiral winding are into electric core 20D, anodal ear 24D's one end is connected with anodal area 21D, anodal ear 24D's the other end is connected with rivet 40D, negative pole ear 25D's one end is connected with negative pole area 22D, negative pole ear 25D's the other end is connected with bottom plate 70D. Anodal area 21D is including the mass flow body aluminium foil, be scribbled anodal active material on the mass flow body aluminium foil, one side department on mass flow body aluminium foil top is the empty aluminium foil of positive pole, anodal ear 24D weld in on the empty aluminium foil of positive pole. The positive electrode active material includes: one or a mixture of more of lithium cobaltate, lithium manganate, lithium iron phosphate, lithium cobalt nickel manganate and lithium nickel nickelate. The negative electrode strip 22D comprises a current collector copper foil, negative active materials are coated on the current collector copper foil, and the negative electrode lug 25D is welded on the negative empty copper foil. The negative electrode active material includes: one or more of graphite, mesocarbon microbeads, lithium titanate and silicon carbon materials.
A middle hole 201D is formed in the winding center of the battery cell 20D, and the diameter range of the middle hole 201D is 0-1.5 mm. The positive tab 24D is connected to the positive strip 21D on the outer ring of the battery cell 20D, the negative tab 25D is connected to the negative strip 22D on the outer ring of the battery cell 20D, the middle hole 201D of the battery cell 20D no longer plays a role of a welding rod passageway, and the diameter of the middle hole 201D can be extremely small and even close to 0.
When the battery is manufactured, the battery cell 20D is placed into the casing 10D, the negative electrode tab 25D of the battery cell 20D is welded to the bottom plate 70D, the positive electrode tab 24D of the battery cell 20D is welded to the rivet 40D of the cover plate 30D, and then the cover plate 30D and the bottom plate 70D are welded to the upper shell opening and the lower shell opening of the casing 10D in a laser welding manner; after the welding is completed, the electrolyte is injected into the battery through the electrolyte injection hole at the position of the cover plate 30D, and after the step of injecting the electrolyte is completed, the sealing piece 60D is pressed into the electrolyte injection hole so as to seal the electrolyte injection hole and prevent the electrolyte from leaking.
Example six: a novel columnar battery comprises a shell 10E, a battery cell 20E, a cover plate 30E and a bottom plate 70E, wherein the shell 10E is provided with an upper shell opening and a lower shell opening, the cover plate 30E covers the upper shell opening of the shell 10E, the bottom plate 70E covers the lower shell opening of the shell 10E, and the battery cell 20E is encapsulated in a cavity of the shell 10E by the cover plate 30E; the casing 10E and the cover plate 30E are made of the same material, the cover plate 30E is specifically made of aluminum, but not limited to aluminum, and the cover plate 30E may also be made of other materials such as nickel-plated steel; the insulating layer 50E is made of a non-conductive substance, specifically a non-conductive glue substance;
the cover plate 30E is provided with a rivet hole, a rivet 40E is riveted at the rivet hole, an insulating layer 50E is arranged between the rivet hole and the rivet 40E,
the cover plate 30E is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing piece 60E is arranged at the liquid injection hole, and the sealing piece 60E seals the electrolyte in the battery; the sealing member 60E is specifically a steel ball, but is not limited to a steel ball;
the battery cell 20E comprises an anode tape 21E and a cathode tape 22E, a diaphragm 23E is arranged between the anode tape 21E and the cathode tape 22E, the anode tape 21E, the diaphragm 23E and the cathode tape 22E are spirally wound into the battery cell 20E, one end of an anode tab 24E is connected with the anode tape 21E, the other end of the anode tab 24E is connected with a rivet 40E, one end of a cathode tab 25E is connected with the cathode tape 22E, and the other end of the cathode tab 25E is connected with the inner wall of the casing 10E. Anodal area 21E is including the mass flow body aluminium foil, be scribbled anodal active material on the mass flow body aluminium foil, one side department on mass flow body aluminium foil top is the empty aluminium foil of positive pole, anodal ear 24E weld in on the empty aluminium foil of positive pole. The positive electrode active material includes: one or a mixture of more of lithium cobaltate, lithium manganate, lithium iron phosphate, lithium cobalt nickel manganate and lithium nickel nickelate. The negative electrode strip 22E comprises a current collector copper foil, negative active materials are coated on the current collector copper foil, and the negative electrode lug 25E is welded on the negative empty copper foil. The negative electrode active material includes: one or more of graphite, mesocarbon microbeads, lithium titanate and silicon carbon materials.
A middle hole 201E is formed in the winding center of the battery cell 20E, and the diameter of the middle hole 201E ranges from 0 mm to 1.5 mm. The positive tab 24E is connected to the positive strip 21E on the outer ring of the battery cell 20E, the negative tab 25E is connected to the negative strip 22E on the outer ring of the battery cell 20E, the middle hole 201E of the battery cell 20E no longer functions as a welding rod passageway, and the diameter of the middle hole 201E can be extremely small, even approaching 0.
When the battery is manufactured, the battery cell 20E is placed into the casing 10E, the negative tab 25E of the battery cell 20E is welded to the inner wall of the casing 10E, the positive tab 24E of the battery cell 20E is welded to the rivet 40E of the cover plate 30E, and then the cover plate 30E and the bottom plate 70E are welded to the upper shell opening and the lower shell opening of the casing 10E by laser welding; after the welding is completed, the electrolyte is injected into the battery through the electrolyte injection hole at the cover plate 30E, and after the step of injecting the electrolyte is completed, the sealing element 60E is pressed into the electrolyte injection hole so as to seal the electrolyte injection hole and prevent the electrolyte from leaking.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (7)
1. A novel cylindrical battery is characterized in that: comprises a shell, an electric core and a cover plate, wherein the cover plate encapsulates the electric core in a cavity of the shell, a rivet hole is arranged on the cover plate, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the cover plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the cover plate, and a middle hole is formed in the winding center of the battery cell.
2. A novel cylindrical battery is characterized in that: comprises a shell, an electric core, a cover plate and a bottom plate, wherein the shell is provided with an upper shell opening and a lower shell opening, the cover plate is covered on the upper shell opening of the shell, the bottom plate is covered on the lower shell opening of the shell, the electric core is encapsulated in a cavity of the shell by the cover plate and the bottom plate, the cover plate is provided with a rivet hole, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the bottom plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the bottom plate, and a middle hole is formed in the winding center of the battery cell.
3. A novel cylindrical battery is characterized in that: the battery comprises a shell, a battery cell, a cover plate and a bottom plate, wherein the shell is provided with an upper shell opening and a lower shell opening, the cover plate is covered on the upper shell opening of the shell in a sealing manner, the bottom plate is covered on the lower shell opening of the shell in a sealing manner, and the battery cell is packaged in a cavity of the shell by the cover plate;
the cover plate is provided with a rivet hole, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the cover plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the cover plate, and a middle hole is formed in the winding center of the battery cell.
4. A novel cylindrical battery is characterized in that: comprises a shell, an electric core, a cover plate and a bottom plate, wherein the shell is provided with an upper shell opening and a lower shell opening, the cover plate is covered on the upper shell opening of the shell, the bottom plate is covered on the lower shell opening of the shell, the electric core is encapsulated in a cavity of the shell by the cover plate and the bottom plate, the cover plate is provided with a rivet hole, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the bottom plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the cover plate, and a middle hole is formed in the winding center of the battery cell.
5. A novel cylindrical battery is characterized in that: the battery comprises a shell, a battery cell, a cover plate and a bottom plate, wherein the shell is provided with an upper shell opening and a lower shell opening, the cover plate is covered on the upper shell opening of the shell in a sealing manner, the bottom plate is covered on the lower shell opening of the shell in a sealing manner, and the battery cell is packaged in a cavity of the shell by the cover plate;
the cover plate is provided with a rivet hole, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the cover plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the bottom plate, and a middle hole is formed in the winding center of the battery cell.
6. A novel cylindrical battery is characterized in that: the battery comprises a shell, a battery cell, a cover plate and a bottom plate, wherein the shell is provided with an upper shell opening and a lower shell opening, the cover plate is covered on the upper shell opening of the shell in a sealing manner, the bottom plate is covered on the lower shell opening of the shell in a sealing manner, and the battery cell is packaged in a cavity of the shell by the cover plate;
the cover plate is provided with a rivet hole, a rivet is riveted at the rivet hole, an insulating layer is arranged between the rivet hole and the rivet,
the cover plate is provided with a liquid injection hole, electrolyte is injected into the battery through the liquid injection hole, a sealing element is arranged at the liquid injection hole, and the sealing element seals the electrolyte in the battery;
the battery cell comprises a positive electrode belt and a negative electrode belt, a diaphragm is arranged between the positive electrode belt and the negative electrode belt, the positive electrode belt, the diaphragm and the negative electrode belt are spirally wound into the battery cell, one end of a positive electrode lug is connected with the positive electrode belt, the other end of the positive electrode lug is connected with a rivet, one end of a negative electrode lug is connected with the negative electrode belt, the other end of the negative electrode lug is connected with the inner wall of the shell, and a middle hole is formed in the winding center of the battery cell.
7. A novel cylindrical battery according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: the diameter range of the mesopore is 0-1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920706347.6U CN210245651U (en) | 2019-05-17 | 2019-05-17 | Novel columnar battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920706347.6U CN210245651U (en) | 2019-05-17 | 2019-05-17 | Novel columnar battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210245651U true CN210245651U (en) | 2020-04-03 |
Family
ID=69970834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920706347.6U Active CN210245651U (en) | 2019-05-17 | 2019-05-17 | Novel columnar battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210245651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212233A (en) * | 2019-05-17 | 2019-09-06 | 金能电池(东莞)有限公司 | A kind of novel column battery |
-
2019
- 2019-05-17 CN CN201920706347.6U patent/CN210245651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212233A (en) * | 2019-05-17 | 2019-09-06 | 金能电池(东莞)有限公司 | A kind of novel column battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4790732B2 (en) | High-capacity lithium ion secondary battery with metal casing | |
| US20220181725A1 (en) | Secondary battery | |
| EP1643569A1 (en) | Lithium rechargeable battery | |
| US9627658B2 (en) | Battery and battery pack | |
| CN110212233A (en) | A kind of novel column battery | |
| JP7045438B2 (en) | Button type battery and its manufacturing method | |
| US8852795B2 (en) | Secondary battery | |
| JP5173095B2 (en) | Sealed battery | |
| EP4156387A1 (en) | Battery | |
| CN210245651U (en) | Novel columnar battery | |
| JP3584656B2 (en) | Method of manufacturing sealing plate for prismatic nonaqueous electrolyte battery | |
| CN101404339B (en) | Secondary battery | |
| JP2003007346A (en) | Secondary lithium battery and manufacturing method of the same | |
| EP3690976B1 (en) | Battery cell and battery | |
| CN112331895A (en) | Battery with a battery cell | |
| CN215644579U (en) | Battery with a battery cell | |
| JP2001176455A (en) | Cylindrical secondary battery | |
| JP2002222666A (en) | Lithium secondary cell | |
| KR20020039097A (en) | Production Method of Lithium Rechargeable Battery and Electrode Tap for Producing the Lithium Rechargeable Battery | |
| CN111786033A (en) | Forming method of button lithium battery roll core, roll core and button lithium battery comprising roll core | |
| KR100601544B1 (en) | Cap Assembly and Li Secondary Battery with the same | |
| CN109193022A (en) | A kind of abnormal shape lithium ion battery | |
| CN218569177U (en) | Electricity core and electricity core module | |
| KR100614398B1 (en) | Prismatic type lithium secondary battery | |
| CN218299972U (en) | Button cell with pin needle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |