CN106450125B - Lithium battery structure - Google Patents
Lithium battery structure Download PDFInfo
- Publication number
- CN106450125B CN106450125B CN201610754541.2A CN201610754541A CN106450125B CN 106450125 B CN106450125 B CN 106450125B CN 201610754541 A CN201610754541 A CN 201610754541A CN 106450125 B CN106450125 B CN 106450125B
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- Prior art keywords
- negative
- positive
- plate
- positive electrode
- lugs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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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
Abstract
The invention relates to a lithium battery structure which comprises a negative electrode shell, a positive electrode end cover, positive electrode plates, negative electrode plates, positive electrode lugs, negative electrode lugs and diaphragms, wherein the positive electrode plates and the negative electrode plates are isolated by the diaphragms and are embedded in the negative electrode shell, the positive electrode end cover and the negative electrode shell form a closed cavity structure, the positive electrode plates are electrically connected with the positive electrode end cover through the positive electrode lugs, the negative electrode plates are electrically connected with the negative electrode shell through the negative electrode lugs, the number of the positive electrode lugs is two, the positive electrode lugs are symmetrically distributed at the positions of two ends of the positive electrode plates, the central line of each negative electrode lug is superposed with the central line of the negative electrode plate, the positive electrode lugs and the negative electrode lugs are respectively and electrically connected with the positive electrode plates and the negative electrode plates through positioning pole pieces, reinforced electrodes are arranged at the front ends of the positive electrode lugs, and. The lithium battery has a simple structure, and can effectively improve the charge-discharge efficiency, the discharge speed and the instantaneous discharge current of the lithium battery while improving the structural stability and the reliability of the lithium battery.
Description
Technical Field
The invention relates to a battery device, in particular to a lithium battery structure.
Background
The lithium battery gradually replaces the traditional dry battery and lead-acid battery due to the characteristics of small structure volume, flexible and convenient use and the like, and is widely applied, but in the practical use, the current lithium battery usually adopts the traditional battery structure, although the requirement of practical use can be met, the connection relation between a pole piece and a pole lug in the internal structure of the current lithium battery is relatively poor in stability, the loosening and breaking condition is easy to occur, the resistance in the lithium battery is increased, the heat productivity is large, the spontaneous combustion of the lithium battery is even caused in serious cases, and therefore, the operation stability and the safety are relatively poor, besides, the current lithium battery has the defects of slow discharge speed and small discharge current, so that the internal electric energy cannot be fully released on one hand, on the other hand, the requirement of using a high-power electric appliance cannot be effectively met on the premise of not increasing the, therefore, the flexibility and reliability of the lithium battery are greatly limited, and therefore, in order to solve the problem, the development of a lithium battery structure is urgently needed to meet the requirement of practical use.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a lithium battery structure which is simple in structure, can effectively improve the charge-discharge efficiency, the discharge speed and the instantaneous discharge current of the lithium battery while improving the stability and the reliability of the lithium battery structure, thereby effectively improving the operation performance of the lithium battery and meeting the operation requirements of high-power electrical appliances under the conditions of ensuring the operation safety and the stability of the lithium battery and not increasing the battery capacity.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a lithium battery structure comprises a negative electrode shell, a positive electrode end cover, a positive plate, a negative plate, positive lugs, negative lugs and a diaphragm, wherein the positive plate and the negative plate are isolated by the diaphragm and embedded in the negative electrode shell, the positive electrode end cover and the negative electrode shell form an airtight cavity structure, the positive plate is electrically connected with the positive electrode end cover through the positive lugs, the negative plate is electrically connected with the negative electrode shell through the negative lugs, the positive plate and the negative plate are rectangular strip-shaped structures and have the same structure, the positive plate and the negative plate are isolated by the diaphragm, the positive lugs are two in number and are symmetrically distributed at two ends of the positive plate, the negative lugs are one, the central line of the negative lug and the central line of the negative plate are coincided and distributed, the lengths of the connection parts of the positive lug and the negative lug and the positive plate and the negative plate are respectively the same as the widths of the negative plate, and the positive lug and the negative lug and, The cathode plate is electrically connected, the positioning pole pieces are at least two, the anode lugs, the cathode lugs, the anode plates and the cathode plates are used, the lengths of the connecting parts of the cathode plates are evenly distributed, the lengths of the positioning pole pieces are the anode lugs, at least 3 times of the effective width of the cathode lugs, the center lines of the anode lugs and the cathode lugs are superposed, the positioning pole pieces are respectively electrically connected with the anode plates, the cathode plates, the anode lugs and the cathode lugs, the positioning pole pieces are respectively distributed in parallel with the anode plates and the cathode plates, the front ends of the anode lugs are respectively provided with strengthening electrodes, the front ends of the two anode lugs are electrically connected with the anode end cover after being electrically connected through the strengthening electrodes, and the strengthening electrode lengths are not less than 2 times.
Furthermore, a plurality of meshes are uniformly distributed on the positioning pole piece, and the total area of all the meshes is not more than 1/2 of the surface area of the positioning pole piece.
Furthermore, the meshes are circular or elliptical.
The lithium battery has a simple structure, can effectively improve the charge and discharge efficiency, the discharge speed and the instantaneous discharge current of the lithium battery while improving the structural stability and the reliability of the lithium battery, thereby effectively improving the operation performance of the lithium battery and meeting the operation requirement of a high-power electrical appliance under the conditions of ensuring the operation safety and the stability of the lithium battery and not increasing the battery capacity.
Drawings
The invention is described in detail below with reference to the drawings and the detailed description;
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a positive plate structure;
fig. 3 is a schematic structural diagram of the negative plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
A lithium battery structure as shown in fig. 1, 2 and 3, comprising a negative electrode casing 1, a positive electrode end cap 2, a positive plate 3, a negative electrode plate 4, a positive electrode tab 5, a negative electrode tab 6 and a diaphragm 7, wherein the positive plate 3 and the negative electrode tab 4 are isolated by the diaphragm 7 and embedded in the negative electrode casing 1, the positive electrode end cap 2 and the negative electrode casing 1 form a closed cavity structure, the positive plate 3 is electrically connected with the positive electrode end cap 2 through the positive electrode tab 5, the negative electrode tab 4 is electrically connected with the negative electrode casing 1 through the negative electrode tab 6, the positive plate 3 and the negative electrode tab 4 are both rectangular strip structures and have the same structure, the positive plate 3 and the negative electrode tab 4 are isolated by the diaphragm 7, wherein the positive electrode tabs 5 are two and are symmetrically distributed at two ends of the positive plate, the negative electrode tabs 6 are one, the center line of the negative electrode tab 6 and the center line of the negative electrode tab 4 are coincided and distributed, and the lengths of the connecting portions of the positive electrode, The width of the negative electrode 4 is the same, the positive electrode tab 5 and the negative electrode tab 6 are respectively and electrically connected with the positive electrode plate 3 and the negative electrode plate 4 through the positioning pole pieces 8, at least two positioning pole pieces 8 are arranged, the lengths of the connecting parts of the positive electrode tab 5 and the negative electrode tab 6 and the positive plate 3 and the negative plate 4 are evenly distributed, the lengths of the positioning pole pieces 8 are at least 3 times of the effective widths of the positive electrode tab 5 and the negative electrode tab 6, the center lines of the positive tab 5 and the negative tab 6 are superposed with the center line of the positioning pole piece 8, the positioning pole piece 8 is respectively and electrically connected with the positive plate 3, the negative plate 4, the positive tab 5 and the negative tab 6, the positioning pole pieces 8 are respectively distributed in parallel with the positive pole piece 3 and the negative pole piece 4, the front ends of the positive pole lugs 5 are respectively provided with a strengthening electrode 9, and the front ends of the two positive lugs 5 are electrically connected with the positive end cover 2 after being electrically connected through the strengthening electrode 9, wherein the length of the strengthening electrode 9 is not less than 2 times of the width of the positive lug 5.
In this embodiment, a plurality of meshes 10 are uniformly distributed on the positioning pole piece 8, and the total area of each mesh 10 is not greater than 1/2 of the surface area of the positioning pole piece 8.
In this embodiment, the mesh 10 is a perfect circle or an ellipse.
The lithium battery has a simple structure, can effectively improve the charge and discharge efficiency, the discharge speed and the instantaneous discharge current of the lithium battery while improving the structural stability and the reliability of the lithium battery, thereby effectively improving the operation performance of the lithium battery and meeting the operation requirement of a high-power electrical appliance under the conditions of ensuring the operation safety and the stability of the lithium battery and not increasing the battery capacity.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a lithium battery structure, includes negative pole casing, anodal end cover, positive plate, negative pole piece, anodal ear, negative pole ear and diaphragm, wherein anodal plate, negative pole piece keep apart and inlay in the negative pole casing through the diaphragm, anodal end cover and negative pole casing constitute inclosed cavity structures, the anodal plate pass through anodal ear and anodal end cover electrical connection, the negative pole piece passes through negative pole ear and negative pole casing electrical connection, its characterized in that: the positive plate and the negative plate are rectangular strip structures and have the same structure, the positive plate and the negative plate are isolated by a diaphragm, wherein the positive lugs are two and are symmetrically distributed at the positions of two ends of the positive plate, the negative lugs are one, the central line of the negative lug is superposed with the central line of the negative plate, the lengths of the connecting parts of the positive lug and the negative lug and the positive plate are respectively the same as the widths of the positive plate and the negative plate, the positive lug and the negative lug are respectively electrically connected with the positive plate and the negative plate by a positioning pole piece, the positioning pole pieces are at least two and are evenly distributed by the lengths of the connecting parts of the positive lug and the negative lug, the length of the positioning pole piece is at least 3 times of the effective width of the positive lug and the negative lug, and the central lines of the positive lug and the negative lug are superposed with the central line of the positioning pole piece, and the positioning pole pieces are respectively superposed, The positive electrode plate is electrically connected with the negative electrode plate, the positive electrode lugs and the negative electrode lugs, the positioning pole pieces are respectively distributed in parallel with the positive electrode plate and the negative electrode plate, the front ends of the positive electrode lugs are respectively provided with a reinforced electrode, the front ends of the two positive electrode lugs are electrically connected with the positive electrode end cover after being electrically connected through the reinforced electrodes, and the length of each reinforced electrode is not less than 2 times of the width of the positive electrode lug; a plurality of meshes are uniformly distributed on the positioning pole piece, and the total area of all meshes is not more than 1/2 of the surface area of the positioning pole piece; the meshes are in a perfect circle or an ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754541.2A CN106450125B (en) | 2016-08-29 | 2016-08-29 | Lithium battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754541.2A CN106450125B (en) | 2016-08-29 | 2016-08-29 | Lithium battery structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106450125A CN106450125A (en) | 2017-02-22 |
| CN106450125B true CN106450125B (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610754541.2A Active CN106450125B (en) | 2016-08-29 | 2016-08-29 | Lithium battery structure |
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| CN (1) | CN106450125B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5198313A (en) * | 1989-06-14 | 1993-03-30 | Bolder Battery, Inc. | Battery end connector |
| CN102104133B (en) * | 2011-01-28 | 2013-03-27 | 福建南平南孚电池有限公司 | Pole lug of lithium battery and negative pole structure with same as well as lithium battery |
| CN104916868A (en) * | 2015-07-03 | 2015-09-16 | 深圳市慧通天下科技股份有限公司 | Cylindrical lithium ion power battery and manufacturing process thereof |
| CN205452456U (en) * | 2015-12-25 | 2016-08-10 | 天津神鹿能源有限公司 | Big cylindrical lithium ion battery of high magnification |
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2016
- 2016-08-29 CN CN201610754541.2A patent/CN106450125B/en active Active
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| CN106450125A (en) | 2017-02-22 |
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