CN201191631Y - Disposable lithium cell - Google Patents
Disposable lithium cell Download PDFInfo
- Publication number
- CN201191631Y CN201191631Y CN200820093363.4U CN200820093363U CN201191631Y CN 201191631 Y CN201191631 Y CN 201191631Y CN 200820093363 U CN200820093363 U CN 200820093363U CN 201191631 Y CN201191631 Y CN 201191631Y
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- lug
- positive
- battery
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- positive pole
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Abstract
The utility model relates to a primary lithium cell, which comprises an electrical core main body, electrolytic solution, a positive pole ear and a negative pole ear which are electrically connected with the electrical core main body and a casing body for packaging the electrical core main body and the electrolytic solution, wherein the electrical core main body comprises a positive pole piece and a negative pole piece which are mutually laminated and winded, a membrane which reliably insulates the two pole pieces is arranged between the positive pole piece and the negative pole piece, the negative pole piece is a metal lithium piece, and the positive pole ear and the negative pole ear are sealed and connected through seal gum and the casing body and are extended out of the casing body. The positive pole piece comprises a sheet-shaped or a net-shaped metal flow collection body and a positive pole material layer which is adhered on the surface of the flow collection body, and the metal flow collection body comprises a non-connecting positive pole material layer and a pole ear connecting portion which is connected with the pole ears, and the casing body is a packaging bag which is made of plastic-aluminum membrane. The disposal lithium cell adopts a plastic-aluminum membrane packaging structure and a positive pole piece which is provided with a pole ear connecting portion structure, and adopts a surface whose positive pole and negative pole are opposite to connect with the positive pole ear and the negative pole ear, leads the thickness of a battery to be greatly reduced, and greatly widens the application field.
Description
Technical field
The utility model relates to a kind of battery, is specifically related to a kind of disposable lithium-battery.
Background technology
Ultra-thinization is a direction of electronic product development, and electronic product will be realized ultra-thinization, at first will solve the ultra-thinization problem of battery.Along with development of science and technology, the application of slimline battery is more and more wider, for example in the credit card of band display screen, the utilization on the greeting card etc.
Disposable lithium-battery is to use a kind of widely battery commonly used, is widely used on the miniaturization electronics products such as calculator, wrist-watch, remote controller.Present disposable lithium-battery all is the button cell structure that adopts the box hat outsourcing, its thickness is the thinnest can only be accomplished about 1.2mm, be subjected to its structural limitations, the thickness of a lithium coin cells continues attenuate and have big difficulty on technology, and the scope of application of disposable lithium-battery is very limited.
The utility model content
The technical problems to be solved in the utility model is, a kind of disposable lithium-battery is provided, and can significantly reduce the thickness of existing disposable lithium-battery (lithium coin cells), makes disposable lithium-battery satisfy the instructions for use of more areas.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of disposable lithium-battery, comprise electric core body, electrolyte, the positive and negative lug that is electrically connected with this electricity core body and the housing that encapsulates this electricity core body and electrolyte, described electric core body comprises the positive and negative plate of stacked mutually or mutual coiling, comprise barrier film between the described positive and negative plate with the reliable insulation of two pole pieces, described negative plate is a metal lithium sheet, and described positive and negative lug is connected with described housing seal by fluid sealant and stretches out this housing; It is characterized in that, described positive plate comprises sheet or net metal collector and the positive electrode material layer that is bonded on this collection liquid surface, described metal collector comprises the lug connecting portion that does not bond described positive electrode material layer and be connected with described lug, and described housing is the encapsulation bag that aluminum plastic film is made.
In disposable lithium-battery of the present utility model, described sheet metal collector is paper tinsel or the net that alloy that the two or more metal in a kind of or aluminium, copper, iron, nickel in aluminium foil, aluminium net, Copper Foil, copper mesh, iron foil, iron net, nickel foil, the nickel screen is formed is made.
In disposable lithium-battery of the present utility model, described lug connecting portion is a narrow strip, and the width of its width and described lug adapts.
In disposable lithium-battery of the present utility model, described metal collector is sheet rectangle or square, and described lug connecting portion is arranged at described metal collector top.
In disposable lithium-battery of the present utility model, the surface that described positive plate is connected with described anode ear is described positive plate and described negative plate facing surfaces with the surface that described negative plate is connected with described negative electrode lug.
In disposable lithium-battery of the present utility model, described positive and negative lug parallel interval is provided with or is provided with in opposite direction or along the mutually perpendicular direction setting.
In disposable lithium-battery of the present utility model, described metal collector thickness is 0.016mm, and the thickness of described barrier film is 0.020mm, and described metal lithium sheet thickness is 0.10mm, and described lug thickness is 0.1mm, and described aluminum plastic film thickness is 0.087mm.
Implement disposable lithium-battery of the present utility model, compared with the prior art, its beneficial effect is:
1. adopt the aluminum plastic film flexible package to replace the metal shell packing of button cell, the while positive plate is provided with the lug connecting portion and is connected with lug, the tie point of lug and positive plate is positioned at the positive electrode material layer thickness range of positive plate, reduced the increase that lug thickness when lug is overlapping to be connected on the positive electrode material layer causes cell thickness greatly, made cell thickness can be decreased to about 0.5mm;
2. the surface that is connected with positive and negative lug of positive/negative plate is two pole piece facing surfaces, has further reduced the influence of lug thickness to cell thickness;
3. be the flexible package slimline battery, thickness can be reduced to about 0.5mm, has widened the utilization field greatly.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structure chart of the utility model disposable lithium-battery embodiment one.
Fig. 2 is the utility model disposable lithium-battery positive plate structural front view.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the front view of the utility model disposable lithium-battery metal lithium sheet.
Fig. 5 is that the utility model disposable lithium-battery lug is provided with direction execution mode one.
Fig. 6 is that the utility model disposable lithium-battery lug is provided with direction execution mode two.
Fig. 7 is the structure chart of the utility model disposable lithium-battery aluminum plastic film.
Fig. 8 is the electric core body construction that adopts winding method among the utility model disposable lithium-battery embodiment two.
Embodiment
Embodiment one
As shown in Figure 1, disposable lithium-battery of the present utility model comprises electric core body 30, electrolyte, positive and negative lug 10 and aluminum plastic film encapsulation bag 20, aluminum plastic film encapsulation bag 20 encapsulation these electricity core body and electrolyte.Electricity core body 30 comprises stacked positive and negative plate mutually, comprise barrier film between the positive and negative plate with the reliable insulation of two pole pieces, negative plate is a metal lithium sheet, and positive and negative lug 10 is tightly connected by fluid sealant 11 and aluminum plastic film encapsulation bag 20 and stretches out this aluminum plastic film encapsulation bag 20.
Aluminum plastic film structure commonly used as shown in Figure 7, it outer 21 is nylon or polyester film PET, interior one deck 22 is the metal aluminum foil layer, interior two layer 23 is ethylene acrylic acid co polymer EAA layer, interior three layer 24 is cast polypropylene film layer CPP.
As Fig. 2, shown in Figure 3, positive plate 31 comprises makes sheet or netted metal collector 312 and the positive electrode material layer 311 that is bonded on this collector both side surface, metal collector 312 comprise do not bond positive electrode material layer and be connected with lug 10 make the strip lug connecting portion 313 that width and lug width adapt, as shown in Figure 1, lug 10 is welded to connect (also can adopt other connected mode to be connected as modes such as welding, conducting resinl bondings) at lug welding position 1 place with lug connecting portion 313.Positive electrode material layer 311 is made positive plate by the mode of roll-in after the one-sided or both side surface that is applied to metal collector 312 then by with positive electrode active materials, conductive agent, the bonding agent anode sizing agent of making admixed together.
As shown in Figure 4, the shape of the shape of negative plate 32 and positive plate 31 adapts, and comprises negative plate body 321 and negative plate connecting portion 322, and negative plate connecting portion 322 is connected with negative lug.
As shown in Figure 5, metal collector 312 adopts sheet rectangle (or square), and lug connecting portion 313 is arranged at the top of metal collector 312, and its width equals the width of metal collector 312.
Certainly, positive plate 31 and negative plate 32 can adopt other shape, as circle, ellipse etc.Usually, in order to guarantee the works fine state of both positive and negative polarity, the size of negative plate is greater than the size that equals anodal, to guarantee all positive active materials the negative electrode active material correspondence is arranged all.
As Fig. 5, shown in Figure 6, positive and negative lug 10 can adopt the parallel interval setting, or is provided with in opposite direction, or along (not shown)s such as mutually perpendicular direction are provided with.
In order further to guarantee to obtain the battery of thin thickness, reduce of the influence of lug thickness to cell thickness, the surface of selecting positive plate 31 to be connected with anode ear is positive plate 31 and negative plate 32 facing surfaces with the surface that negative plate 32 is connected with negative electrode lug.
In the present embodiment, the thickness of metal collector 312 is 0.016mm, and the thickness of barrier film is 0.020mm, and the thickness of metal lithium sheet 321 is 0.10mm, and the thickness of lug 10 is 0.1mm, and the thickness of aluminum plastic film is 0.087mm.In other embodiments, the thickness of above-mentioned metal collector 312, barrier film, metal lithium sheet 321, lug 10 and aluminum plastic film can adopt other suitable thickness.
Embodiment two
As shown in Figure 8, present embodiment and embodiment one are basic identical, and difference only is: electric core body 30 adopts winding method, and correspondingly, positive plate 31 and negative plate 32 should adopt strip.
Claims (7)
1, a kind of disposable lithium-battery, comprise electric core body, electrolyte, the positive and negative lug that is electrically connected with this electricity core body and the housing that encapsulates this electricity core body and electrolyte, described electric core body comprises the positive and negative plate of stacked mutually or mutual coiling, comprise barrier film between the described positive and negative plate with the reliable insulation of two pole pieces, described negative plate is a metal lithium sheet, and described positive and negative lug is connected with described housing seal by fluid sealant and stretches out this housing; It is characterized in that, described positive plate comprises sheet or net metal collector and the positive electrode material layer that is bonded on this collection liquid surface, described metal collector comprises the lug connecting portion that does not bond described positive electrode material layer and be connected with described lug, and described housing is the encapsulation bag that aluminum plastic film is made.
2, disposable lithium-battery as claimed in claim 1 is characterized in that: described sheet metal collector is paper tinsel or the net that alloy that the two or more metal in a kind of or aluminium, copper, iron, nickel in aluminium foil, aluminium net, Copper Foil, copper mesh, iron foil, iron net, nickel foil, the nickel screen is formed is made.
3, disposable lithium-battery as claimed in claim 1 is characterized in that: described lug connecting portion is a narrow strip, and the width of its width and described lug adapts.
4, disposable lithium-battery as claimed in claim 1 is characterized in that: described metal collector is sheet rectangle or square, and described lug connecting portion is arranged at described metal collector top.
5, as the described disposable lithium-battery of one of claim 1 to 4, it is characterized in that: the surface that described positive plate is connected with described anode ear is described positive plate and described negative plate facing surfaces with the surface that described negative plate is connected with described negative electrode lug.
6, as the described disposable lithium-battery of one of claim 1 to 4, it is characterized in that: described positive and negative lug parallel interval is provided with or is provided with in opposite direction or along the mutually perpendicular direction setting.
7, as the described disposable lithium-battery of one of claim 1 to 4, it is characterized in that: described metal collector thickness is 0.016mm, and the thickness of described barrier film is 0.020mm, and described metal lithium sheet thickness is 0.10mm, described lug thickness is 0.1mm, and described aluminum plastic film thickness is 0.087mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820093363.4U CN201191631Y (en) | 2008-04-16 | 2008-04-16 | Disposable lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820093363.4U CN201191631Y (en) | 2008-04-16 | 2008-04-16 | Disposable lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201191631Y true CN201191631Y (en) | 2009-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820093363.4U Expired - Fee Related CN201191631Y (en) | 2008-04-16 | 2008-04-16 | Disposable lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201191631Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244290A (en) * | 2011-06-03 | 2011-11-16 | 向建辉 | Ultrathin lithium ion battery |
| CN101867032B (en) * | 2010-02-09 | 2013-01-02 | 湖南科力远新能源股份有限公司 | Method for welding lug on anode |
| CN105161667A (en) * | 2015-09-25 | 2015-12-16 | 金龙联合汽车工业（苏州）有限公司 | Connecting structure and connecting method of lithium battery pole lugs and battery shell |
| CN105552397A (en) * | 2016-02-01 | 2016-05-04 | 宁波超霸能源有限公司 | Disposable wound product of lithium metal battery |
| CN105655534A (en) * | 2015-12-30 | 2016-06-08 | 中国电子科技集团公司第十八研究所 | Coiled primary lithium battery cathode structure |
| CN105702912A (en) * | 2014-11-27 | 2016-06-22 | 中国电子科技集团公司第十八研究所 | Negative electrode of primary lithium battery and preparation method of negative electrode |
| CN105870392A (en) * | 2016-05-13 | 2016-08-17 | 深圳市科陆电子科技股份有限公司 | Electrode, battery cell, battery module, as well as preparation method and application of battery module |
| CN106099132A (en) * | 2016-08-30 | 2016-11-09 | 惠州市惠德瑞锂电科技股份有限公司 | A kind of lithium battery core body and the lithium primary battery of gained |
| CN106229527A (en) * | 2016-09-30 | 2016-12-14 | 宁波超霸能源有限公司 | Battery winding product and disposable lithium metal battery |
| CN111725533A (en) * | 2019-06-27 | 2020-09-29 | 湖南立方新能源科技有限责任公司 | Preparation method of lithium primary battery |
-
2008
- 2008-04-16 CN CN200820093363.4U patent/CN201191631Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867032B (en) * | 2010-02-09 | 2013-01-02 | 湖南科力远新能源股份有限公司 | Method for welding lug on anode |
| CN102244290A (en) * | 2011-06-03 | 2011-11-16 | 向建辉 | Ultrathin lithium ion battery |
| CN105702912A (en) * | 2014-11-27 | 2016-06-22 | 中国电子科技集团公司第十八研究所 | Negative electrode of primary lithium battery and preparation method of negative electrode |
| CN105161667A (en) * | 2015-09-25 | 2015-12-16 | 金龙联合汽车工业（苏州）有限公司 | Connecting structure and connecting method of lithium battery pole lugs and battery shell |
| CN105655534B (en) * | 2015-12-30 | 2018-09-11 | 中国电子科技集团公司第十八研究所 | A kind of coiling lithium one-shot battery negative pole structure |
| CN105655534A (en) * | 2015-12-30 | 2016-06-08 | 中国电子科技集团公司第十八研究所 | Coiled primary lithium battery cathode structure |
| CN105552397B (en) * | 2016-02-01 | 2018-04-06 | 宁波超霸能源有限公司 | Disposable lithium metal battery winding product |
| CN105552397A (en) * | 2016-02-01 | 2016-05-04 | 宁波超霸能源有限公司 | Disposable wound product of lithium metal battery |
| CN105870392A (en) * | 2016-05-13 | 2016-08-17 | 深圳市科陆电子科技股份有限公司 | Electrode, battery cell, battery module, as well as preparation method and application of battery module |
| CN106099132A (en) * | 2016-08-30 | 2016-11-09 | 惠州市惠德瑞锂电科技股份有限公司 | A kind of lithium battery core body and the lithium primary battery of gained |
| CN106229527A (en) * | 2016-09-30 | 2016-12-14 | 宁波超霸能源有限公司 | Battery winding product and disposable lithium metal battery |
| CN106229527B (en) * | 2016-09-30 | 2018-08-17 | 宁波超霸能源有限公司 | Battery winding product and disposable lithium metal battery |
| CN111725533A (en) * | 2019-06-27 | 2020-09-29 | 湖南立方新能源科技有限责任公司 | Preparation method of lithium primary battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Yao'an Battery Power Technology (Shenzhen) Co., Ltd. patent person in charge Document name: Notification that Application Deemed not to be Proposed |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Longgang District of Shenzhen City, Guangdong province 518116 new Longgang Street Community Xian Road No. 53 Patentee after: Yaoan Battery Potech (Shenzhen) Ltd. Address before: With the Longgang District of Shenzhen city in Guangdong province was 518116 pit road No. 168 Hengli Industrial Park building A1 Patentee before: Yaoan Battery Potech (Shenzhen) Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20170416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |