CN107452903B - Single-port battery top cover and battery - Google Patents
Single-port battery top cover and battery Download PDFInfo
- Publication number
- CN107452903B CN107452903B CN201710702865.6A CN201710702865A CN107452903B CN 107452903 B CN107452903 B CN 107452903B CN 201710702865 A CN201710702865 A CN 201710702865A CN 107452903 B CN107452903 B CN 107452903B
- Authority
- CN
- China
- Prior art keywords
- top cover
- battery
- sheet
- cover sheet
- conductive sheet
- 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
- 238000003466 welding Methods 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims 2
- 230000009172 bursting Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 229910052744 lithium Inorganic materials 0.000 description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 23
- 238000000034 method Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 150000002641 lithium Chemical class 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
-
- 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
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- 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
- H01M50/543—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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
Abstract
The invention relates to the technical field of batteries, and discloses a single-port battery top cover and a single-port battery. When the battery is used, the port and the boss on the top cover plate are respectively connected with external electric equipment in a conductive mode, so that the boss is arranged on the top cover plate to replace the original port of the battery, power supply to the outside is achieved, the use of one port can be reduced for each battery, the structure of the battery is simplified, the assembly efficiency of the battery is improved, and the manufacturing cost of the battery is reduced.
Description
Technical Field
The invention relates to the technical field of battery top covers and batteries, in particular to a single-port battery top cover and a single-port battery.
Background
At present, with the increasing miniaturization, portability and portability of electronic products, such as video cameras, notebooks, mobile phones, etc., driving power sources of these electronic products are also being developed toward high capacity, high safety and portability, and lithium batteries are widely used in electronic products due to their excellent characteristics such as high capacity.
The lithium battery comprises a shell, a top cover sheet, a battery cell and the like, wherein the battery cell is arranged in the shell, an upper end opening is formed in the upper end of the shell, the top cover sheet is sealed in the opening in the upper end of the shell, a port is formed in the cover plate, and power supply to the outside is achieved through the port.
In the prior art, a lithium battery is provided with two ports, and two poles of external electric equipment are respectively connected in a conductive manner through the two ports, so that power supply to the electric equipment is realized. However, the structure of the lithium battery with two ports is relatively complex, which affects the assembly efficiency of the lithium battery, and the manufacturing cost is relatively high, which is not beneficial to the production and use of the lithium battery.
Disclosure of Invention
The invention provides a single-port battery top cover and a battery, and aims to solve the problems that in the prior art, the structure of a lithium battery with two ports is relatively complex, the assembly efficiency of the lithium battery is affected, the manufacturing cost is relatively high, and the production and the use of the lithium battery are not facilitated.
The invention is realized in such a way that the cover plate comprises a top cover plate which is covered on the opening of the shell and is in conductive connection with the battery cell in the shell, the upper end surface part of the top cover plate is upwards protruded to form a boss which is in conductive connection with the outside, and the top cover plate is only provided with one port, and the port is arranged in an insulating way with the top cover plate.
Further, the alignment part of the lower end face of the top cover sheet and the boss is upwards recessed to form a groove with an opening at the lower end.
Further, the top cover sheet is integrally formed.
Further, a conductive sheet connected with the battery cell is arranged below the top cover sheet, and the conductive sheet is connected with the lower end face of the top cover sheet.
Further, the conductive sheet is in a flat-laid shape and is positioned right below the groove of the top cover sheet.
Further, the conductive sheet includes a middle portion and side portions that extend from the middle portion to outside the two sides in a flat manner, the middle portion of the conductive sheet is located right below the groove, and the side portions of the conductive sheet extend to outside the side edges of the groove and are connected with the lower end face of the conductive sheet.
Further, the middle portion of the conductive sheet protrudes downward with respect to the two side portions.
Further, the middle part and the two side edge parts enclose to form a concave area with an opening at the upper end, and the concave area is arranged opposite to the groove of the top cover sheet.
Further, the two side edge portions of the conductive sheet are connected with the lower end face of the top cover sheet by means of welding.
The battery comprises the battery top cover with the single port.
Compared with the prior art, the single-port battery top cover and the battery provided by the invention have the advantages that only one port is penetrated through the top cover, the boss is formed on the upper end surface of the top cover and is used for conducting connection with external electric equipment to replace the original port of the battery, so that the external power supply is realized, the structure of the battery can be simplified, the assembly efficiency of the battery is improved, the manufacturing cost of the battery is reduced, the problems that the structure of the lithium battery with two ports is relatively complex, the assembly efficiency of the lithium battery is influenced, the manufacturing cost is relatively high, and the production and the use of the lithium battery are not facilitated are solved.
Drawings
Fig. 1 is a schematic perspective view of a single-port battery according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a single port battery provided in an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view taken at section A-A of FIG. 2;
FIG. 4 is an enlarged schematic view at B in FIG. 3;
fig. 5 is a schematic structural view of a top cover sheet of a single-port battery according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a conductive sheet of a single-port battery according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The implementation of the present invention will be described in detail below with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1 to 6, a preferred embodiment of the present invention is provided.
The battery top cover and the battery with the single port are used for solving the problems that the structure of a lithium battery with two ports is relatively complex, the assembly efficiency of the lithium battery is affected, the manufacturing cost is relatively high, and the production and the use of the lithium battery are not facilitated, can be used for other types of batteries, and are not limited to the embodiment.
The single-port battery top cover comprises a top cover sheet 12 which is covered on an opening of a shell 11 and is electrically connected with a battery cell 13 in the shell 11, an upper end face part of the top cover sheet 12 faces upwards to a boss 121 to form the boss 121 which is electrically connected with the outside, the top cover sheet 12 is provided with only one port 14, the port 14 is arranged in an insulating way with the top cover sheet 12, in the embodiment, a through hole 123 is arranged on the top cover sheet 12, and the port 14 penetrates through the top cover sheet 12 through the through hole 123.
The battery top cover and the battery with the single port are provided, the top cover sheet 12 is only provided with the port 14, the boss 121 formed on the upper end face of the top cover sheet 12 is used for being connected with external electric equipment in a conductive mode to replace the original port 14 of the battery, and power supply to the external is achieved.
Specifically, the lower end surface of the top cover sheet 12 is recessed upward from the boss 121, forming a recess 122 with an open lower end. In fact, the grooves 122 are formed by upwardly arching the top cover sheet 12, and in the processing process of the top cover sheet 12, the specific part of the top cover sheet 12 is pressurized, so that the specific part of the top cover sheet 12 is upwardly arched, thereby forming the grooves 122 on the bottom surface of the top cover sheet 12, and meanwhile, the boss 121 is formed on the upper surface of the top cover sheet 12, the whole processing process does not increase materials, the whole weight of the top cover sheet 12 does not need to be increased, and the manufacturing process is simpler and more convenient. Of course, the grooves 122 and the bosses 121 may be manufactured by other methods according to practical situations.
Specifically, the top cover sheet 12 is integrally formed, so that the top cover sheet 12 is more convenient to manufacture, the manufacturing efficiency is higher, the manufacturing cost of the top cover sheet 12 is reduced, and meanwhile, the battery top cover is firmer, gaps are avoided, and the normal use of the battery is influenced.
A conductive sheet 15 connected to the battery cell 13 is provided below the top sheet 12, and the conductive sheet 15 is connected to the lower end surface of the top sheet 12. Through setting up conducting strip 15, this conducting strip 15 is connected with electric core 13 for top cap piece 12 is connected with electric core 13 is electrically conductive, thereby makes boss 121 on the top cap piece 12 realize replacing the function of another port in the original battery, makes the battery structure simpler, reduces the cost of battery.
Specifically, the conductive sheet 15 is laid in a flat shape directly under the recess 122 of the top sheet 12. In this way, the contact area between the conductive sheet 15 and the top cover sheet 12 is larger, so that the conductive sheet 15 and the top cover sheet 12 are connected conveniently, and the connection between the conductive sheet 15 and the top cover sheet 12 is firm.
Specifically, the conductive sheet 15 includes a middle portion and side portions that extend from the middle portion to outside the two sides, the middle portion of the conductive sheet 15 is located directly under the groove 122, and the side portions of the conductive sheet 15 extend to outside the sides of the groove 122 and are connected to the lower end surface of the conductive sheet 15. That is, the conductive sheet 15 covers the opening at the lower end of the recess 122, so that the connection mode of the conductive sheet 15 and the battery core 13 is closer to the connection mode of the original port 14 of the battery and the battery core 13, and thus the structural variation in the battery can be reduced as much as possible, and the performance of the battery is more stable.
The middle portion of the conductive sheet 15 protrudes downward with respect to the two side portions. Like this for the lower terminal surface of the mid portion of conducting strip 15 is nearer with the distance of electric core 13, generally, sets the distance between mid portion of conducting strip 15 and electric core 13 to the distance between conducting column and electric core 13 the same, makes the equipment more convenient like this, improves the production efficiency of battery.
Specifically, the intermediate portion and the two side edge portions enclose a recessed area with an open upper end, which is disposed directly opposite the recess 122 of the top cover sheet 12. In fact, the concave region is formed by downwardly concave in the middle region of the conductive sheet 15, so that the processing of the conductive sheet 15 is more convenient.
In this embodiment, both side edge portions of the conductive sheet 15 are connected to the lower end face of the top sheet 12 by welding. In this way, the connection between the conductive sheet 15 and the top cover sheet 12 is more firm, and the conductive sheet 15 and the top cover sheet 12 may be connected by other means according to actual needs.
A battery, a battery top cover comprising the single port 14 described above. That is, the battery top cover described above is used in the battery and forms part of the battery.
In addition, when the battery cell 13 is used as a power storage element of the lithium battery, abnormal gas is generated in the casing 11 due to factors such as a charger and along with chemical reaction in the lithium battery, so that the internal pressure of the casing 11 of the lithium battery is excessively high, and if the internal pressure of the casing 11 is continuously increased, the internal pressure of the lithium battery is excessively high, so that an explosion accident of the lithium battery occurs. In order to avoid this, be provided with the blasthole 124 on the top cap piece 12, be provided with the rupture disk 125 in this blasthole 124, when the internal pressure of lithium cell exceeds a definite value, the rupture disk 125 can split, lets out the inside unusual gas of lithium cell, reduces the internal pressure of lithium cell, avoids the explosion of lithium cell for the use of lithium cell is safer.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (3)
1. The battery top cover with the single port is characterized by comprising a top cover sheet which is covered on an opening of the shell and is in conductive connection with an electric core in the shell, wherein the upper end face part of the top cover sheet is upwards protruded to form a boss which is in conductive connection with the outside, and only one port is arranged on the top cover sheet and is in insulating arrangement with the top cover sheet;
the alignment part of the lower end surface of the top cover sheet and the boss is upwards recessed to form a groove with an opening at the lower end; the top cover sheet is integrally formed to synchronously form the boss and the groove;
a conductive sheet connected with the battery cell is arranged below the top cover sheet, and the conductive sheet is connected with the lower end surface of the top cover sheet;
the conducting strip is in a flat-laid shape and is positioned right below the groove of the top cover strip;
the conductive sheet comprises a middle part and side edge parts which are tiled outwards from the middle part towards two sides, the middle part of the conductive sheet is positioned right below the groove, and the side edge parts of the conductive sheet extend out of the side edges of the groove and are connected with the lower end face of the conductive sheet;
the middle part of the conductive sheet protrudes downwards relative to the two side edge parts; the distance between the middle part of the conductive sheet and the battery cell is the same as the distance between the conductive column and the battery cell;
the middle part and the two side edge parts are enclosed to form a concave area with an opening at the upper end, and the concave area is opposite to the groove of the top cover sheet;
and a blasting hole is formed in the top cover plate, and a bursting disc is arranged in the blasting hole.
2. The single port battery top cover of claim 1 wherein said side edge portions of the conductive sheet are connected to the lower end surface of said top cover sheet by welding.
3. A battery comprising the single port battery top cap of any one of claims 1 to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710702865.6A CN107452903B (en) | 2017-08-16 | 2017-08-16 | Single-port battery top cover and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710702865.6A CN107452903B (en) | 2017-08-16 | 2017-08-16 | Single-port battery top cover and battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107452903A CN107452903A (en) | 2017-12-08 |
| CN107452903B true CN107452903B (en) | 2024-02-20 |
Family
ID=60492757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710702865.6A Active CN107452903B (en) | 2017-08-16 | 2017-08-16 | Single-port battery top cover and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107452903B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070067783A (en) * | 2005-12-23 | 2007-06-29 | 삼성에스디아이 주식회사 | Secondary battery |
| JP2015018757A (en) * | 2013-07-12 | 2015-01-29 | 株式会社豊田自動織機 | Power storage device |
| CN204946951U (en) * | 2015-09-21 | 2016-01-06 | 宁德时代新能源科技有限公司 | Secondary cell top cover and secondary cell |
| CN105609693A (en) * | 2014-11-19 | 2016-05-25 | 三星Sdi株式会社 | Electrode assembly and battery pack having the same |
| CN105609667A (en) * | 2014-11-19 | 2016-05-25 | 三星Sdi株式会社 | Secondary battery |
| CN105702889A (en) * | 2016-04-08 | 2016-06-22 | 深圳市瑞德丰精密制造有限公司 | Forming method of battery top cap |
| CN106356490A (en) * | 2015-07-15 | 2017-01-25 | 三星Sdi株式会社 | Rechargeable battery and rechargeable battery module using the same |
| CN106450137A (en) * | 2016-11-15 | 2017-02-22 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| JP2017069058A (en) * | 2015-09-30 | 2017-04-06 | 日立マクセル株式会社 | Hermetically sealed type battery |
| CN207134390U (en) * | 2017-08-16 | 2018-03-23 | 深圳市瑞德丰精密制造有限公司 | The battery cap and battery of single port |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101084056B1 (en) * | 2010-07-21 | 2011-11-16 | 에스비리모티브 주식회사 | Rechargeable battery |
-
2017
- 2017-08-16 CN CN201710702865.6A patent/CN107452903B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070067783A (en) * | 2005-12-23 | 2007-06-29 | 삼성에스디아이 주식회사 | Secondary battery |
| JP2015018757A (en) * | 2013-07-12 | 2015-01-29 | 株式会社豊田自動織機 | Power storage device |
| CN105609693A (en) * | 2014-11-19 | 2016-05-25 | 三星Sdi株式会社 | Electrode assembly and battery pack having the same |
| CN105609667A (en) * | 2014-11-19 | 2016-05-25 | 三星Sdi株式会社 | Secondary battery |
| CN106356490A (en) * | 2015-07-15 | 2017-01-25 | 三星Sdi株式会社 | Rechargeable battery and rechargeable battery module using the same |
| CN204946951U (en) * | 2015-09-21 | 2016-01-06 | 宁德时代新能源科技有限公司 | Secondary cell top cover and secondary cell |
| JP2017069058A (en) * | 2015-09-30 | 2017-04-06 | 日立マクセル株式会社 | Hermetically sealed type battery |
| CN105702889A (en) * | 2016-04-08 | 2016-06-22 | 深圳市瑞德丰精密制造有限公司 | Forming method of battery top cap |
| CN106450137A (en) * | 2016-11-15 | 2017-02-22 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| CN207134390U (en) * | 2017-08-16 | 2018-03-23 | 深圳市瑞德丰精密制造有限公司 | The battery cap and battery of single port |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107452903A (en) | 2017-12-08 |
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| CB02 | Change of applicant information |
Address after: 213200 Minghu Road, Jintan District, Changzhou City, Jiangsu Province, 399 Applicant after: Changzhou Redford Precision Technology Co.,Ltd. Address before: Guangming Martin street Shenzhen city Guangdong province 518106 water Sixth Industrial Zone xufa Science Park 6, building 7, building 3 floor 3A Applicant before: RDF FAIRY PRECISION TECHNOLOGY Co.,Ltd. |
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