CN112563552A - Novel cylindrical battery - Google Patents
Novel cylindrical battery Download PDFInfo
- Publication number
- CN112563552A CN112563552A CN202011404848.2A CN202011404848A CN112563552A CN 112563552 A CN112563552 A CN 112563552A CN 202011404848 A CN202011404848 A CN 202011404848A CN 112563552 A CN112563552 A CN 112563552A
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- CN
- China
- Prior art keywords
- shell
- battery
- core
- winding core
- cylindrical battery
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- 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.)
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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
- H01M10/0422—Cells or battery with cylindrical casing
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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
- H01M10/0431—Cells with wound or folded electrodes
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to the technical field of batteries and discloses a novel cylindrical battery which comprises a film shell and a shell, wherein a winding core is fixedly arranged in the film shell, tab glue is fixedly arranged at two ends of the side surface of the winding core, the winding core is fixedly connected with a positive tab through the tab glue at one end, the winding core is fixedly connected with a negative tab through the tab glue at the other end, a positive plate is fixedly arranged in the winding core, and diaphragm paper is fixedly connected to the inner surface of the positive plate. According to the novel cylindrical battery, the film shell with the steel shell structure is arranged in the battery and used for protecting the winding core, so that the safety performance of the battery is better when the novel cylindrical battery is used, fatal defects such as short circuit and fire can not be caused by external force, and the battery does not need to be folded after being packaged, so that the stability of the packaging performance is ensured, fatal defects such as flatulence and liquid leakage can not be caused by poor packaging, the protection effect is higher, the battery capacity is improved, and the problem provided in the background art is solved.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a novel cylindrical battery.
Background
The packaging technology of the cylindrical battery which is commonly used in the industry at present is that a concave pit is formed by punching a shell by using an aluminum plastic film, and the upper edge, the left edge and the right edge are subjected to heat sealing after a roll core is placed in the concave pit, so that the sealing effect is achieved.
However, in the existing packaging technology, after the upper and lower end sockets are packaged, the surface is a flat aluminum-plastic film, but after the aluminum layer in the middle of the aluminum-plastic film is broken, the edge sealing of the arc surface can be subjected to physical impact, and after the aluminum layer in the middle of the aluminum-plastic film is broken, in the process of charging, discharging and storing the battery, electrolyte can continuously corrode the partner layer, so that gas is generated after the battery is stored, and fatality such as liquid leakage is caused; because the soft package battery only depends on the 113um aluminum plastic film to protect the winding core in the battery, when the battery is impacted by external force, the weak aluminum plastic film can not completely protect the winding core, and the anode and cathode contact short circuit caused by external extrusion in the winding core can be caused to form fatal damage; and the top seal of the cylindrical battery occupies 3.5mm to 4.5mm space and the side seal occupies 1.0mm space in the conventional design, so that the space utilization is reduced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a novel cylindrical battery which has the advantages of higher protection effect, battery capacity improvement and the like, and solves the problems that after forced physical punching, the edge sealing of the cambered surface is subjected to physical impact, so that the aluminum-plastic film with poor fatality and weakness, such as gas generation, liquid leakage and the like after the battery is stored cannot completely protect a roll core, the contact of a positive electrode and a negative electrode in the roll core is short due to external extrusion, the fatal damage is formed, and the space utilization of the conventionally designed cylindrical battery is reduced.
(II) technical scheme
In order to achieve the purposes of higher protection effect and battery capacity improvement, the invention provides the following technical scheme: the utility model provides a novel cylindrical battery, includes membrane shell and shell, the inside fixed mounting of membrane shell has a core, it has utmost point ear glue to roll up core side both ends fixed mounting, it glues the fixed connection with anodal ear through one end utmost point ear to roll up the core, it glues the fixed connection with negative pole ear through other end utmost point ear to roll up the core, roll up the inside fixed mounting of core and have the positive plate, the inside fixed surface of positive plate is connected with diaphragm paper, the inside fixed surface of diaphragm paper is connected with the negative pole piece.
Preferably, the bottom of the winding core is positioned in the shell, and the position of the positive tab and the position of the negative tab are diagonal.
Preferably, the membrane shell is made of a steel shell, and the shell is made of an aluminum-plastic membrane.
Preferably, the membrane shell and the outer shell and the winding core are square in shape.
(III) advantageous effects
Compared with the prior art, the invention has the following beneficial effects: according to the novel cylindrical battery, the film shell with the steel shell structure is arranged in the battery and used for protecting the winding core, so that the safety performance of the battery is better when the novel cylindrical battery is used, fatal defects such as short circuit and fire can not be caused by external force, and the battery does not need to be folded after being packaged, so that the stability of the packaging performance is ensured, fatal defects such as flatulence and liquid leakage can not be caused by poor packaging, the protection effect is higher, the battery capacity is improved, and the problem provided in the background art is solved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. a membrane shell; 2. a negative tab; 3. a positive plate; 4. a separator paper; 5. a negative plate; 6. a housing; 7. gluing a tab; 8. a positive tab; 9. and (6) winding cores.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Please refer to fig. 1, a novel cylindrical battery, including membrane shell 1 and shell 6, be used for protecting its inside book core 9, the inside fixed mounting of membrane shell 1 has a book core 9, it is the winding battery to roll up core 9, roll up core 9 side both ends fixed mounting and have utmost point ear glue 7, roll up core 9 and glue 7 fixedly connected with anodal ear 8 through one end utmost point ear, roll up core 9 and glue 7 fixedly connected with negative pole ear 2 through other end utmost point ear, roll up the inside fixed mounting of core 9 and have anodal piece 3, the inside fixed surface of anodal piece 3 is connected with diaphragm paper 4, the inside fixed surface of diaphragm paper 4 is connected with negative pole piece 5, roll up core 9 bottom and be located inside the shell 6, the position of anodal ear 8 and the position 2 of negative pole ear are the diagonal angle, the material of membrane shell 1 is the steel casing, the material of shell 6 is the plastic-aluminum membrane, the shape.
The working principle of the novel cylindrical battery is as follows:
firstly, winding a winding core 9, punching a steel shell membrane shell 1 according to the size of the winding core 9 after the winding core 9 is wound, putting the manufactured winding core 9 into the membrane shell 1, and extending out the anode tab 8 and the cathode tab 2 from opposite angles at two sides of the steel shell membrane shell 1; injecting liquid into the steel shell before packaging, and when the winding core 9 is placed into the steel shell, dropping the electrolyte into the shell to enable the winding core 9 to normally absorb the electrolyte, and packaging after liquid absorption is finished; the upper aluminum-plastic shell 6 is taken down during packaging, the aluminum-plastic film and the processed steel shell are pressed through the end socket, and high-frequency heating packaging is carried out through high-frequency packaging equipment, so that the packaging process between the shell 6 and the film shell 1 is achieved, during packaging, high-frequency packaging is carried out on the outer side of the aluminum-plastic film shell 6, and high temperature is not generated inside the winding core 9; and finally, activating by using low-current constant-current charging after packaging is finished, so that the aims of higher protection effect and improvement of battery capacity are fulfilled.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A novel cylindrical battery comprises a membrane shell (1) and a shell (6), and is characterized in that: film shell (1) inside fixed mounting has roll core (9), roll up core (9) side both ends fixed mounting and have utmost point ear glue (7), roll up core (9) and glue (7) positive electrode ear (8) through one end utmost point ear, roll up core (9) and glue (7) fixedly connected with negative electrode ear (2) through other end utmost point ear, roll up the inside fixed mounting of core (9) and have positive plate (3), the fixed surface is connected with diaphragm paper (4) in positive plate (3), the fixed surface is connected with negative pole piece (5) in diaphragm paper (4) inside.
2. The novel cylindrical battery of claim 1, wherein: the bottom of the winding core (9) is positioned in the shell (6), and the position of the positive electrode tab (8) and the position (2) of the negative electrode tab are diagonal.
3. The novel cylindrical battery of claim 1, wherein: the membrane shell (1) is made of a steel shell, and the shell (6) is made of an aluminum-plastic membrane.
4. The novel cylindrical battery of claim 1, wherein: the shape of the membrane shell (1), the shell (6) and the winding core (9) is square.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011404848.2A CN112563552A (en) | 2020-12-03 | 2020-12-03 | Novel cylindrical battery |
| US17/424,443 US20220311079A1 (en) | 2020-10-18 | 2021-03-25 | Pouch battery and manufacturing method thereof |
| EP21731882.3A EP4007045A4 (en) | 2020-10-18 | 2021-03-25 | Soft package battery and manufacturing method therefor |
| JP2021543485A JP2023502186A (en) | 2020-10-18 | 2021-03-25 | Pouch type battery and its manufacturing method |
| PCT/CN2021/082987 WO2022077867A1 (en) | 2020-10-18 | 2021-03-25 | Soft package battery and manufacturing method therefor |
| JP2023001593U JP3242750U (en) | 2020-10-18 | 2023-05-11 | pouch type battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011404848.2A CN112563552A (en) | 2020-12-03 | 2020-12-03 | Novel cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112563552A true CN112563552A (en) | 2021-03-26 |
Family
ID=75048705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011404848.2A Pending CN112563552A (en) | 2020-10-18 | 2020-12-03 | Novel cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112563552A (en) |
-
2020
- 2020-12-03 CN CN202011404848.2A patent/CN112563552A/en active Pending
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