CN102201580A - High-efficiency and low-cost ultrathin flexible battery design and fabrication method - Google Patents
High-efficiency and low-cost ultrathin flexible battery design and fabrication method Download PDFInfo
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- CN102201580A CN102201580A CN201110083256XA CN201110083256A CN102201580A CN 102201580 A CN102201580 A CN 102201580A CN 201110083256X A CN201110083256X A CN 201110083256XA CN 201110083256 A CN201110083256 A CN 201110083256A CN 102201580 A CN102201580 A CN 102201580A
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Abstract
The invention provides a high-efficiency and low-cost ultrathin flexible battery design and fabrication method. The high-efficiency and low-cost ultrathin flexible battery comprises a collector layer, a Zn electrode layer, a pulp layer, and a MnO2 electrode layer in sequence from bottom to top. The fabrication method comprises the following steps: (A) soaking the pulp layer in a ZnCl2 or NH4Cl solution with the mass fraction of 30%; (B) imprinting a negative electrode material on a flexible substrate by a screen printing technique, platemaking, and then extruding a positive electrode material through a scraper to transfer the slurry to the pulp layer through mesh openings of a pattern and text part; (C) drying the pulp layer, leveling and extruding the positive electrode material through the scraper; (D) cutting transversely and longitudinally according to the design size to obtain the product; and (E) respectively connecting the positive electrode layer and the negative electrode layer with a metal material which has stable chemical property and does not react with the electrode material and electrolyte to be used as a collector. The product fabricated by the method provided by the invention has the advantages of low cost, ultrathin thickness, high durability and stability, and can achieve large-batch production without pollution.
Description
Technical field
The present invention relates to print coating technique and ultrathin flexible battery technology field, particularly a kind of high-efficiency and low-cost ultrathin flexible battery design and manufacture method of using the screen printing technique batch process.
Background technology
Silk screen printing is that silk fabrics, synthetic fabrics or woven wire are stretched tight on screen frame, adopts manual method of carving paint film or photochemistry plate-making to make screen printing forme.By the extruding of scraper plate, printing ink is transferred on the stock by the mesh of picture and text part during printing, formed the picture and text the same with original copy.Modern screen printing technique then is to utilize photosensitive material to make screen printing forme (making the silk screen hole of picture and text part on the screen printing forme is through hole, and the silk screen hole of non-graphic part is plugged) by photomechanical method.Screen printing apparatus is simple, easy to operate, and it is simple and easy and with low cost to print, make a plate, and adaptability is strong.
The ultrathin flexible battery, be (as paper with the insulation flexible substrate, cloth, plastics etc.) as the battery of carrier, the special inks of making by nano wires such as silver, carbon or materials such as zinc, manganese dioxide, be coated on the flexible substrate, make " ultrathin flexible battery ", become light-duty, novel energy-storing device efficiently.The low profile flexible battery of emerging appearance, receive publicity in the whole world, global two companies had developed the papery battery in 2006: Israel Power Paper company adopts the thin layer paper that one side is zinc-plated, another side plates manganese dioxide to make the paper battery of thickness less than 0.7mm as conductor and isolator; The Enfucell company of Finland adopts same material also to make the ultrathin flexible battery.Power Paper is in successful introduce its product to the market in 2007, and Enfucell company also had Related product to appear on the market in 2009.In the recent period, the ultrathin flexible battery that can be recycled is made with materials such as carbon nano-tube, nano silver wires by California, USA Stanford University, and manufacture method is simple, and its effect is 10 times of lithium battery.But also fail to form business-like product.Popularization gradually along with microelectronics market, at the place of finding of miniature label display, smart card, music greeting card, electronic newspaper, RFID label and small-power mobile equipment power supply system, and along with the RFID technology rapid development, this ultrathin flexible battery is expected to reach tens dollars in the potential market in future.
Summary of the invention
At the problem in the background technology, the object of the invention is to provide a kind of low cost, high efficiency to make the technical method of ultrathin flexible battery, adopt screen printing technique with the two poles of the earth of battery respectively according to designed size, be printed on the both sides of flexible substrate, next the substrate that prints electrode is cut into required single battery unit, connect metal good conductor thin slices such as platinum or titanium respectively as collector electrode in the both sides of each battery unit then, utilize laminator to encapsulate at last, and expose metal electrode, to make things convenient for external load.
For achieving the above object, the invention provides following technical scheme:
A kind of high efficiency, low-cost ultrathin flexible battery design and manufacture method are followed successively by collector layer, Zn electrode layer, pulp layered paper and MnO by bottom to upper strata
2Electrode layer, its concrete steps are as follows:
A) at first pulp layered paper being infiltrated on mass fraction is about 30% ZnCl
2Or MH
4In the Cl solution, flatten oven dry;
B) utilize screen printing technique that negative material is stamped on the flexible substrate, after the plate-making,, slurry is transferred on the pulp layered paper by the mesh of picture and text part the extruding of positive electrode by scraper plate;
C) treat pulp layered paper oven dry leveling after, with the extruding of positive electrode, slurry is transferred on the pulp layered paper another side, by the mesh of picture and text part just in time corresponding to positive electrode by scraper plate;
D) cut layer to form product by design size by the vertical and horizontal cutting step, wherein the pulp layered paper layer has the area bigger than the material that prints electrode;
E) respectively the both positive and negative polarity layer is connected chemical property stable and not with the metal material of electrode material and electrolyte reaction as collector electrode.
As preferred version of the present invention, in the described steps A, the electrolyte solution main component is ZnCl
2Or NH
4Cl treats to print positive and negative pole material respectively after oven dry flattens.
As preferred version of the present invention, among the described step B, negative material is made up of Zn powder and mixed slurry with electrolyte solution of additive, and additive is a polytetrafluoroethylene, so that electrode particle is adhered in the slurry.
As preferred version of the present invention, among the described step C, positive electrode is by γ-MnO
2Powder and the mixed slurry composition with electrolyte solution of additive, described additive is polytetrafluoroethylene and carbon black or carbon nano-tube or other inactive conductive materials.
As preferred version of the present invention, in the described step e, collector material is selected the platinum paper tinsel.
The beneficial effect that the present invention brought is: the product that uses design of the present invention and manufacture method to produce has that cost is low, ultralight thin, continual and steady, durability is high and advantage such as excellent performance, and, can realize superior production decisions such as in enormous quantities, pollution-free, easy industrialization, promptly efficient, the cleaning of ultrathin flexible battery are made.
Description of drawings
Fig. 1 is a ultrathin flexible battery unit structure principle schematic of the present invention;
Fig. 2 is the product structure schematic diagram of battery unit of the present invention.
Number in the figure is:
1-positive electrode layer 2-separator 3-positive electrode layer
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that.
A kind of high efficiency as shown in Figure 1 and Figure 2, low-cost ultrathin flexible battery design and manufacture method,
Embodiment is:
1, battery unit structure design
The basic structure of design battery unit on the ultrathin flexible substrate, as shown in Figure 1.Positive electrode layer 1, positive electrode layer 3 are to be respectively the Activity of Chemical Reaction electrode layer can take place, under electrolytical effect, and the transfer that redox reaction takes place and then produce electronics.
The employing screen printing technique reduces cost, and improves to apply the uniformity, and then increases the transformation efficiency of active material.
2, the preparation of battery unit
It is the core of whole silk screen printing that half tone is made, and according to the designing requirement of battery required size, fabrication cycle is the blockage of 60mm*60mm on half tone, and circumferentially-spaced all is 20mm, also can make according to customer requirements.
Separator 2: adopting battery industry pulp layered paper commonly used to soak into mass fraction is behind 30% the ZnCl2 electrolyte solution, as separator.
The slurry of positive electrode layer 3: adopt granularity at nano level zinc powder and sneak into a spot of ZnCl2, preferably ZnCl2 content is 10% of negative material total amount, is 1% PTFE splashing into dosage then, stirs to make it mix the back sealing to preserve, and is stand-by.
The slurry of positive electrode layer 1: the employing granularity is at nano level manganese dioxide powder, carbon black and sneak into a spot of ZnCl2, preferably ZnCl2 content is 10% of negative material total amount, carbon black is 0.8% of a negative material, be 1% PTFE splashing into dosage then, stirring makes it mix the back sealing and preserves, and is stand-by.
Utilize screen printing technique respectively positive and negative electrode to be printed on the both sides of separator, connect with two electrodes respectively and can use after collector electrode encapsulates.
The above; it only is the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range that claims were limited.
Claims (5)
1. a high efficiency, low-cost ultrathin flexible battery design and manufacture method are followed successively by collector layer, Zn electrode layer, pulp layered paper and MnO by bottom to upper strata
2Electrode layer is characterized in that, concrete steps are as follows:
A) at first pulp layered paper being infiltrated on mass fraction is about 30% ZnCl
2Or NH
4In the Cl solution, flatten oven dry;
B) utilize screen printing technique that negative material is stamped on the flexible substrate, after the plate-making,, slurry is transferred on the pulp layered paper by the mesh of picture and text part the extruding of positive electrode by scraper plate;
C) treat pulp layered paper oven dry leveling after, with the extruding of positive electrode, slurry is transferred on the pulp layered paper another side, by the mesh of picture and text part just in time corresponding to positive electrode by scraper plate;
D) cut layer to form product by design size by the vertical and horizontal cutting step, wherein the pulp layered paper layer has the area bigger than the material that prints electrode;
E) respectively the both positive and negative polarity layer is connected chemical property stable and not with the metal material of electrode material and electrolyte reaction as collector electrode.
2. a kind of high efficiency according to claim 1, low-cost ultrathin flexible battery design and manufacture method is characterized in that, in the described steps A, the electrolyte solution main component is ZnCl
2Or NH
4Cl treats to print positive and negative pole material respectively after oven dry flattens.
3. a kind of high efficiency according to claim 1, low-cost ultrathin flexible battery design and manufacture method, it is characterized in that, among the described step B, negative material is made up of Zn powder and mixed slurry with electrolyte solution of additive, additive is a polytetrafluoroethylene, so that electrode particle is adhered in the slurry.
4. a kind of high efficiency according to claim 1, low-cost ultrathin flexible battery design and manufacture method is characterized in that among the described step C, positive electrode is by γ-MnO
2Powder and the mixed slurry composition with electrolyte solution of additive, described additive is polytetrafluoroethylene and carbon black or carbon nano-tube or other inactive conductive materials.
5. a kind of high efficiency according to claim 1, low-cost ultrathin flexible battery design and manufacture method is characterized in that, in the described step e, collector material is selected the platinum paper tinsel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110083256XA CN102201580A (en) | 2011-04-02 | 2011-04-02 | High-efficiency and low-cost ultrathin flexible battery design and fabrication method |
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| CN201110083256XA CN102201580A (en) | 2011-04-02 | 2011-04-02 | High-efficiency and low-cost ultrathin flexible battery design and fabrication method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610786A (en) * | 2011-12-20 | 2012-07-25 | 南昌大学 | Preparation method of ternary composite paper battery positive electrode |
| CN103326000A (en) * | 2013-05-28 | 2013-09-25 | 遵义师范学院 | Method for preparing composite material for cathode of lithium ion battery |
| CN105355844A (en) * | 2015-10-14 | 2016-02-24 | 中国科学院深圳先进技术研究院 | Water-injection power generation environment-friendly battery and positive electrode and battery pack thereof |
| CN107221648A (en) * | 2017-04-26 | 2017-09-29 | 苏州浏宸新材料科技有限公司 | A kind of preparation method of flexible battery |
| CN110350133A (en) * | 2019-07-23 | 2019-10-18 | 四川新力能源科技有限公司 | Rechargeable sealed zinc ion battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157586A (en) * | 1991-01-28 | 1992-10-20 | Bollore Technologies | Separator for electrolytic capacitors, and capacitors made therewith |
| CN1207703A (en) * | 1995-12-20 | 1999-02-10 | 帕沃·派伯有限公司 | Flexible thin layer open electrochemical cell |
| CN101601152A (en) * | 2007-02-06 | 2009-12-09 | 恩福塞尔公司 | The method of thin battery and manufacturing thin battery |
| CN201608230U (en) * | 2010-01-28 | 2010-10-13 | 吴立 | Environment-friendly paper battery |
-
2011
- 2011-04-02 CN CN201110083256XA patent/CN102201580A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157586A (en) * | 1991-01-28 | 1992-10-20 | Bollore Technologies | Separator for electrolytic capacitors, and capacitors made therewith |
| CN1207703A (en) * | 1995-12-20 | 1999-02-10 | 帕沃·派伯有限公司 | Flexible thin layer open electrochemical cell |
| CN101601152A (en) * | 2007-02-06 | 2009-12-09 | 恩福塞尔公司 | The method of thin battery and manufacturing thin battery |
| CN201608230U (en) * | 2010-01-28 | 2010-10-13 | 吴立 | Environment-friendly paper battery |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610786A (en) * | 2011-12-20 | 2012-07-25 | 南昌大学 | Preparation method of ternary composite paper battery positive electrode |
| CN103326000A (en) * | 2013-05-28 | 2013-09-25 | 遵义师范学院 | Method for preparing composite material for cathode of lithium ion battery |
| CN103326000B (en) * | 2013-05-28 | 2015-05-13 | 遵义师范学院 | Method for preparing composite material for cathode of lithium ion battery |
| CN105355844A (en) * | 2015-10-14 | 2016-02-24 | 中国科学院深圳先进技术研究院 | Water-injection power generation environment-friendly battery and positive electrode and battery pack thereof |
| CN105355844B (en) * | 2015-10-14 | 2018-10-16 | 深圳先进技术研究院 | Water-injection power generation environment-friendly battery and positive electrode and battery pack thereof |
| CN107221648A (en) * | 2017-04-26 | 2017-09-29 | 苏州浏宸新材料科技有限公司 | A kind of preparation method of flexible battery |
| CN110350133A (en) * | 2019-07-23 | 2019-10-18 | 四川新力能源科技有限公司 | Rechargeable sealed zinc ion battery |
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Application publication date: 20110928 |