CN112467267A - Production process of button battery - Google Patents
Production process of button battery Download PDFInfo
- Publication number
- CN112467267A CN112467267A CN202011377232.0A CN202011377232A CN112467267A CN 112467267 A CN112467267 A CN 112467267A CN 202011377232 A CN202011377232 A CN 202011377232A CN 112467267 A CN112467267 A CN 112467267A
- Authority
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- China
- Prior art keywords
- shell
- lower shell
- upper shell
- button
- battery cell
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 239000004033 plastic Substances 0.000 claims abstract description 33
- 229920003023 plastic Polymers 0.000 claims abstract description 33
- 238000004806 packaging method and process Methods 0.000 claims abstract description 18
- 239000003792 electrolyte Substances 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 13
- 238000002844 melting Methods 0.000 claims abstract description 10
- 230000008018 melting Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000004080 punching Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000002985 plastic film Substances 0.000 description 7
- 229920006255 plastic film Polymers 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000005672 electromagnetic field Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
Images
Classifications
-
- 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
- H01M10/0427—Button cells
-
- 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
-
- 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
-
- 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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The application discloses a production process of a button battery, which comprises the steps of heating electrolyte-resistant and waterproof plastic to a melting point, putting the plastic into a mold to form an upper shell and a lower shell, inserting guide pieces into the tops of the upper shell and the lower shell, and cooling and forming; forming a coil core by the diaphragm, the battery cell positive plate with the pole lug and the battery cell negative plate and drying; respectively conducting the guide sheet of the upper shell and the guide sheet of the lower shell with the tabs of the battery cell positive plate and the battery cell negative plate, placing the winding core into the lower shell, and injecting electrolyte into the lower shell; aligning the edges of the upper shell and the lower shell, and packaging the upper shell and the lower shell together; and carrying out formation charging on the packaged button battery. The production process of the button cell provided by the invention can save cost, avoid shell punching breakage and improve product quality.
Description
Technical Field
The invention belongs to the technical field of battery manufacturing, and particularly relates to a production process of a button battery.
Background
In the current lithium battery industry, an aluminum-plastic film shell or a steel shell is generally adopted as a shell for packaging a battery cell. When the aluminum-plastic film is adopted, the aluminum-plastic film is heated and fused through the end socket, the lugs are formed at the two ends of the electric core, welding and assembling are carried out, and packaging is finished; and the box hat battery is in process of production, utilize circular mould to carry out the punching press drawing to circular steel sheet, make circular steel sheet become cylindric box hat, it is serious to draw like this, the box hat is broken easily to appear, the phenomenon of explosion easily appears, therefore the risk is higher, then will roll up the core and put into the box hat, to naked electric core utmost point ear welding connection piece, after having welded the connection piece, weld the cap, mainly accomplish electric core encapsulation through the laser welding box hat between cap and the casing, ensure the gas tightness of electric core encapsulation, and the cost of box hat is higher moreover.
Disclosure of Invention
In order to solve the problems, the invention provides a production process of a button cell, which can save cost, avoid shell punching breakage and improve product quality.
The production process of the button battery provided by the invention comprises the following steps:
heating electrolyte-resistant and waterproof plastic to a melting point, putting the plastic into a mold to form an upper shell and a lower shell, inserting guide vanes into the tops of the upper shell and the lower shell, and cooling and molding;
forming a coil core by the diaphragm, the battery cell positive plate with the pole lug and the battery cell negative plate and drying;
respectively conducting the guide sheet of the upper shell and the guide sheet of the lower shell with the tabs of the battery cell positive plate and the battery cell negative plate, placing the winding core into the lower shell, and injecting electrolyte into the lower shell;
aligning the edges of the upper shell and the lower shell, and packaging the upper shell and the lower shell together;
and carrying out formation charging on the packaged button battery.
Preferably, in the above production process of the button cell, the upper case and the lower case are sealed together by aligning the edges of the upper case and the lower case:
aligning the edges of the upper shell and the lower shell, and packaging the upper shell and the lower shell together by means of heating and melting.
Preferably, in the above production process of the button cell, the upper case and the lower case are sealed together by aligning the edges of the upper case and the lower case:
and aligning the edges of the upper shell and the lower shell, and packaging the upper shell and the lower shell together by using a high-frequency welding mode.
Preferably, in the production process of the button cell, the frequency of the high frequency is not less than 100 KHz.
Preferably, in the production process of the button cell, the electrolyte-resistant and waterproof plastic is PET plastic, PC plastic, PP plastic or PE plastic.
Preferably, in the production process of the button cell, the lead is a nickel sheet.
Preferably, in the production process of the button battery, the forming and drying the diaphragm, the positive cell plate with the tab and the negative cell plate into a roll core includes:
and drying the moisture in the battery cell positive plate and the battery cell negative plate by using an oven.
Preferably, in the production process of the button battery, the conducting pieces on the upper casing and the conducting pieces on the lower casing are respectively conducted with the tabs of the cell positive plate and the cell negative plate as follows:
and respectively conducting the guide sheet on the upper shell and the guide sheet on the lower shell with the lugs of the battery cell positive plate and the battery cell negative plate by using resistance welding, laser welding or ultrasonic welding processes.
Preferably, in the above production process of a button cell, the aligning the upper case with the lower case edge is:
and placing the upper shell and the lower shell in a tool clamp, and aligning the upper shell and the lower shell.
As can be seen from the above description, in the manufacturing process of the button cell provided by the present invention, the electrolyte-resistant and waterproof plastic is heated to a melting point, and then placed in a mold to form the upper case and the lower case, and the top of the upper case and the bottom of the lower case are inserted with the guide plate, and then cooled and molded; forming a coil core by the diaphragm, the battery cell positive plate with the pole lug and the battery cell negative plate and drying; respectively conducting the guide sheet of the upper shell and the guide sheet of the lower shell with the tabs of the battery cell positive plate and the battery cell negative plate, placing the winding core into the lower shell, and injecting electrolyte into the lower shell; aligning the edges of the upper shell and the lower shell, and packaging the upper shell and the lower shell together; the encapsulated button cell is formed and charged, and the upper shell and the lower shell are made of plastics, so that the defects that an aluminum plastic film shell and a steel shell are adopted in the prior art are overcome, the cost is saved, the shell punching breakage can be avoided, and the product quality is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of an embodiment of a button cell production process provided by the present invention;
fig. 2 is a cross-sectional view of a button cell provided by the present invention.
Detailed Description
The key point of the invention is to provide a production process of the button cell, which can save cost, avoid shell punching breakage and improve product quality.
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.
Fig. 1 is a schematic view of an embodiment of a process for producing a button cell according to the present invention, where the process may include the following steps:
s1: heating electrolyte-resistant and waterproof plastic to a melting point, putting the plastic into a mold to form an upper shell and a lower shell, inserting guide vanes into the tops of the upper shell and the lower shell, and cooling and molding;
it should be noted that, in this embodiment, an aluminum-plastic film casing or a steel casing is not used as in the prior art, but a plastic casing is used to make the casing, and the guide plate can be directly connected to the casing in the cooling and molding process, so as to avoid the problem that the aluminum-plastic film casing is easy to break and the problem that the steel casing is easy to explode. The specific type of this plastics is not limited as long as not corroded by electrolyte and waterproof can, and this be used for electrically conductive guide plate can be preferred sets up the central point at two casings in addition, and the width of guide plate will be greater than the utmost point ear width of electric core, is less than a roll core diameter, and its specific material is also not limited, and after the cooling, this guide plate just becomes an organic whole with the casing, can also follow-up carry out insulating seal around this guide plate and handle, avoids the entering of moisture.
S2: forming a coil core by the diaphragm, the battery cell positive plate with the pole lug and the battery cell negative plate and drying;
it should be noted that, this tab may be welded in advance on the corresponding positive cell plate and negative cell plate, and the separator, the positive cell plate and the negative cell plate may be dried after forming the roll core, so as to remove the moisture in the plate.
S3: respectively conducting the guide sheet of the upper shell and the guide sheet of the lower shell with the tabs of the positive plate and the negative plate of the battery cell, placing the winding core into the lower shell, and injecting electrolyte into the lower shell;
specifically, the guide sheet and the electrode lug can be welded and conducted by an electric welding process in a dry environment, after welding is completed, the winding core is placed into the plastic shell after the winding core electrode lug is bent, and then electrolyte can be injected.
S4: aligning the edges of the upper shell and the lower shell, and packaging the upper shell and the lower shell together;
it should be noted that, after the liquid injection of the battery cell is completed, the contact positions of the upper casing and the lower casing are aligned and then are packaged into a whole, and the packaging manner is not limited here.
S5: and carrying out formation charging on the packaged button battery.
The battery cell can be activated by the formation charging step, so that the button battery is manufactured.
In addition, referring to fig. 2, fig. 2 is a cross-sectional view of a button cell provided by the present invention, and it can be seen that the button cell includes an upper casing 1, a lower casing 2 and a guide tab 3, the guide tab is connected to a tab 4, and a battery cell 5 is located inside.
As can be seen from the above description, in the embodiment of the manufacturing process of the button cell provided by the present invention, since the manufacturing process includes heating the electrolyte-resistant and waterproof plastic to the melting point, placing the plastic into a mold to form the upper casing and the lower casing, inserting the guide plate on the top of the upper casing and the lower casing, and cooling and molding; forming a coil core by the diaphragm, the battery cell positive plate with the pole lug and the battery cell negative plate and drying; respectively conducting the guide sheet of the upper shell and the guide sheet of the lower shell with the tabs of the positive plate and the negative plate of the battery cell, placing the winding core into the lower shell, and injecting electrolyte into the lower shell; aligning the edges of the upper shell and the lower shell, and packaging the upper shell and the lower shell together; the encapsulated button cell is formed and charged, and the upper shell and the lower shell are made of plastics, so that the defects that an aluminum plastic film shell and a steel shell are adopted in the prior art are overcome, the cost is saved, the shell punching breakage can be avoided, and the product quality is improved.
In a specific embodiment of the above production process of the button cell, aligning the edges of the upper casing and the lower casing, and packaging the two together may be specifically:
the edges of the upper shell and the lower shell are aligned, and the upper shell and the lower shell are packaged together by means of heating and melting.
Therefore, in the embodiment, the packaging is realized without adopting the existing laser mode, but the packaging can be realized only by adopting a simple heating mode, the temperature can be increased to 190 ℃ to 230 ℃, which is determined by the melting point characteristic of plastics, the production flow and the production equipment are effectively simplified, the cost is low, the liquid leakage phenomenon caused by scratching/scratching a main body is not easy to occur, and the product quality is improved.
In another specific embodiment of the above production process of the button cell, aligning the edges of the upper case and the lower case, and packaging the two together may be specifically:
the edges of the upper shell and the lower shell are aligned, and the upper shell and the lower shell are packaged together by means of high-frequency welding. Further, the frequency of the high frequency wave may be not less than 100 KHz.
It should be noted that, can realize welding between 190 deg.C to 230 deg.C, this kind of high frequency is to utilize the high frequency electromagnetic field to make the material inside the molecule collide each other violently to produce the high temperature and reach the purpose of welding and welding, can adopt the plastic welding machine of high frequency to finish this kind of encapsulation specifically, produce the high frequency electromagnetic field by the self-excited oscillator of the electronic tube, the plastics of the encapsulated position under the influence of high frequency electromagnetic field, its inside molecule is excited and high-speed movement rub each other and produce the heat and melt, achieve the purpose of encapsulating it as an organic whole.
In the above embodiment, the electrolyte-resistant and waterproof plastic may preferably be PET plastic, PC plastic, PP plastic or PE plastic, and the lead may preferably be a nickel sheet, which has excellent conductivity and thus better performance of the button cell, and of course, other leads may be selected according to actual needs, and the present invention is not limited thereto.
In another specific embodiment of the above production process of the button battery, the step of forming the separator, the positive cell plate with the tab, and the negative cell plate with the tab into a roll core and drying the roll core may include:
the moisture in the battery cell positive plate and the battery cell negative plate is dried by the oven, the operation is easy and the cost is low when the oven is used for drying, and other drying modes can be adopted according to specific conditions without limitation.
In a preferred embodiment of the above production process of the button battery, the conducting between the conducting plate on the upper casing and the conducting plate on the lower casing and the tabs of the positive electrode plate of the battery cell and the negative electrode plate of the battery cell respectively may be: and respectively conducting the guide sheet on the upper shell and the guide sheet on the lower shell with the lugs of the positive plate and the negative plate of the battery cell by using resistance welding, laser welding or ultrasonic welding processes. Of course, other welding methods may be used to connect the guide plate and the tab, and this is not limited here.
In another preferred embodiment of the above production process of the button cell, the aligning of the edges of the upper case and the lower case may be: and placing the upper shell and the lower shell in a tool clamp, and aligning the upper shell and the lower shell. Specifically, the purpose-made tool clamp is utilized, the upper shell and the lower shell can be well aligned, so that the packaging effect of the button cell is better, and the quality of a product is further improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A production process of a button cell is characterized by comprising the following steps:
heating electrolyte-resistant and waterproof plastic to a melting point, putting the plastic into a mold to form an upper shell and a lower shell, inserting guide vanes into the tops of the upper shell and the lower shell, and cooling and molding;
forming a coil core by the diaphragm, the battery cell positive plate with the pole lug and the battery cell negative plate and drying;
respectively conducting the guide sheet of the upper shell and the guide sheet of the lower shell with the tabs of the battery cell positive plate and the battery cell negative plate, placing the winding core into the lower shell, and injecting electrolyte into the lower shell;
aligning the edges of the upper shell and the lower shell, and packaging the upper shell and the lower shell together;
and carrying out formation charging on the packaged button battery.
2. The process for producing a button cell according to claim 1, wherein the upper case and the lower case are sealed together by aligning the edges of the upper case and the lower case:
aligning the edges of the upper shell and the lower shell, and packaging the upper shell and the lower shell together by means of heating and melting.
3. The process for producing a button cell according to claim 1, wherein the upper case and the lower case are sealed together by aligning the edges of the upper case and the lower case:
and aligning the edges of the upper shell and the lower shell, and packaging the upper shell and the lower shell together by using a high-frequency welding mode.
4. The process for producing button cells according to claim 3, wherein the frequency of the high frequency is not less than 100 KHz.
5. The process for producing a button cell according to claim 1, wherein the electrolyte-resistant and waterproof plastic is PET plastic, PC plastic, PP plastic or PE plastic.
6. The process for producing a button cell according to claim 1, wherein the lead is a nickel sheet.
7. The production process of the button battery according to claim 1, wherein the step of forming the diaphragm, the positive cell plate with the tab and the negative cell plate into a winding core and drying comprises the following steps:
and drying the moisture in the battery cell positive plate and the battery cell negative plate by using an oven.
8. The production process of the button battery according to claim 1, wherein the conducting of the guide sheet on the upper casing and the guide sheet on the lower casing with the tabs of the cell positive plate and the cell negative plate respectively is as follows:
and respectively conducting the guide sheet on the upper shell and the guide sheet on the lower shell with the lugs of the battery cell positive plate and the battery cell negative plate by using resistance welding, laser welding or ultrasonic welding processes.
9. The process for producing a button cell according to claim 1, wherein the aligning the upper case with the lower case edge is:
and placing the upper shell and the lower shell in a tool clamp, and aligning the upper shell and the lower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377232.0A CN112467267A (en) | 2020-11-30 | 2020-11-30 | Production process of button battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377232.0A CN112467267A (en) | 2020-11-30 | 2020-11-30 | Production process of button battery |
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| Publication Number | Publication Date |
|---|---|
| CN112467267A true CN112467267A (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011377232.0A Pending CN112467267A (en) | 2020-11-30 | 2020-11-30 | Production process of button battery |
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| CN (1) | CN112467267A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101075676A (en) * | 2007-06-22 | 2007-11-21 | 惠州亿纬电源科技有限公司 | 9V square lithium battery |
| CN101267023A (en) * | 2008-04-30 | 2008-09-17 | 成都中科来方能源科技有限公司 | Plastic shell lithium ion battery and its making method |
| CN106953032A (en) * | 2017-03-13 | 2017-07-14 | 湖南立方新能源科技有限责任公司 | A kind of lithium ion battery encapsulating structure and its method for packing |
| CN207381437U (en) * | 2016-10-30 | 2018-05-18 | 深圳格林德能源有限公司 | A kind of miniature plastic housing annular lithium ion battery |
| CN108346758A (en) * | 2017-01-25 | 2018-07-31 | 兴能高科技股份有限公司 | Has the rechargeable type lithium ion battery of plastic housing |
| CN211629137U (en) * | 2020-01-21 | 2020-10-02 | 珠海微矩实业有限公司 | Button cell |
| CN111755778A (en) * | 2020-08-04 | 2020-10-09 | 广州鹏辉能源科技股份有限公司 | Air battery and battery pack |
-
2020
- 2020-11-30 CN CN202011377232.0A patent/CN112467267A/en active Pending
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| CN101075676A (en) * | 2007-06-22 | 2007-11-21 | 惠州亿纬电源科技有限公司 | 9V square lithium battery |
| CN101267023A (en) * | 2008-04-30 | 2008-09-17 | 成都中科来方能源科技有限公司 | Plastic shell lithium ion battery and its making method |
| CN207381437U (en) * | 2016-10-30 | 2018-05-18 | 深圳格林德能源有限公司 | A kind of miniature plastic housing annular lithium ion battery |
| CN108346758A (en) * | 2017-01-25 | 2018-07-31 | 兴能高科技股份有限公司 | Has the rechargeable type lithium ion battery of plastic housing |
| CN106953032A (en) * | 2017-03-13 | 2017-07-14 | 湖南立方新能源科技有限责任公司 | A kind of lithium ion battery encapsulating structure and its method for packing |
| CN211629137U (en) * | 2020-01-21 | 2020-10-02 | 珠海微矩实业有限公司 | Button cell |
| CN111755778A (en) * | 2020-08-04 | 2020-10-09 | 广州鹏辉能源科技股份有限公司 | Air battery and battery pack |
Non-Patent Citations (1)
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| 林述琦, 中国轻工业出版社 * |
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Application publication date: 20210309 |
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