CN102779974B - Nano cell and process this nano cell manufacture method - Google Patents
Nano cell and process this nano cell manufacture method Download PDFInfo
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- CN102779974B CN102779974B CN201110118935.6A CN201110118935A CN102779974B CN 102779974 B CN102779974 B CN 102779974B CN 201110118935 A CN201110118935 A CN 201110118935A CN 102779974 B CN102779974 B CN 102779974B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
A kind of nano cell involved in the present invention, comprises battery positive and negative electrode, electrolyte and membrane for polymer and forms; Because technical solution of the present invention adopts anode to be formed by lithium compound powder mull; Battery cathode is formed by carbon compound powder mull, by electrolyte solution, electrolyte adds that organic solvent is mixed with; Membrane for polymer makes film by the multilayer microporous film of polypropylene (PP) and polyethylene (PE) compound, by grinding and ultrasonic wave two procedures and add conductivity good carbon nano-fiber processing and manufacturing, be conducive to improving cell density, reach the performance improving battery capacity and current charge-discharge electric energy, meanwhile, be conducive to improving electric conductivity.Because described cell density has been improved, make battery that higher multiplying power can be used to carry out discharge and recharge, reduce discharge and recharge to cell damage, thus reach the useful life extending battery.In addition, manufacture method of the present invention also has simple to operation and cost is low.
Description
[Ji Intraoperative field]
The present invention relates to a kind of battery, specifically a kind of nano cell being applied to nanometer technology.
[Bei Jing Ji Intraoperative]
Along with science and technology constantly progressive and development forward, more and more higher to battery performance requirements along with various electronic digital product.Its percentage of batteries is all adopt two or more heterogeneity electrochemical activity electrode combine positive and negative electrode and be soaked in the electrolyte that can provide media conduction.But battery major part is all adopt lithium battery material to form in prior art.Particle volume due to lithium battery material is large and tap density is low, cause that the capacity of described battery storage electric energy is low, poor electric conductivity and current charge-discharge performance low.
[summary of the invention]
The technology of the present invention object be in order to solve above-mentioned prior art Problems existing provide a kind of improve battery storage electric energy volumetric properties, the performance of current charge-discharge electric energy, electric conductivity and the nano cell of battery can be extended.
The technology of the present invention object also provides a kind of manufacture method with simple to operation, that cost is low this nano cell of processing.
In order to realize above-mentioned technical purpose, a kind of nano cell provided by the present invention, it comprises battery positive and negative electrode, electrolyte and membrane for polymer; Described cell positive electrode is formed by lithium compound powder mull; Described battery cathode is formed by the grinding of carbon compound powder end; By electrolyte solution, described electrolyte adds that organic solvent is mixed with; Described membrane for polymer makes film by the multilayer microporous film of polypropylene (PP) and polyethylene (PE) compound.
According to above-mentioned technical characteristics, described lithium compound powder packets contains LiMn2O4 powder or iron phosphate powder or cobalt acid lithium powder or nickle cobalt lithium manganate powder.
According to above-mentioned technical characteristics, described carbon compound powder end includes powdered graphite or carbon dust.
According to above-mentioned technical characteristics, described electrolyte solution includes lithium hexafluorophosphate solution or hexafluoroarsenate lithium solution or lithium perchlorate solution or thionyl chloride solution.
In order to process above-mentioned nano cell, and machining manufacture is adopted to be:
Cell positive electrode nanometer operation: first described lithium compound powder is poured in specified containers according to setting ratio, full and uniform stirring, make the uniform cell positive material of formation, then, cell positive material is put into ball mill, be ground to micron particles, again micron particles is dissolved in organic solvent and forms micron particles solution, recycling ultrasonic wave is to after this micron particles solution-treated setting-up time, high temperature distillation extracts, then minus 20 degrees is cooled to, pure micron particles is formed after using high-strength focused ion beam-electron beam two-beam process, again this pure micron particles is ground to nano particle, i.e. nanometer cell positive material, described lithium compound powder packets contains LiMn2O4 powder or iron phosphate powder or cobalt acid lithium powder or nickle cobalt lithium manganate powder,
Battery negative electrodes nanometer operation: first described carbon compound powder is poured in specified containers according to the ratio of presetting, full and uniform stirring, make the uniform cell negative electrode material of formation, ball mill grinding is utilized to become micron particles this cell negative electrode material again, again described micron particles is dissolved in organic solvent and forms micron particles solution, recycling ultrasonic wave is to after this micron particles solution-treated setting-up time, carry out high temperature distillation extraction, then under cooling minus 20 degrees, pure micron particles is formed after using high-strength focused ion beam-electron beam two-beam process, again this pure micron particles is ground to nano particle, be nanometer negative material, described carbon compound powder packets contains powdered graphite or carbon dust,
Electrolyte nano chemical industry sequence: first described electrolyte solution is dissolved in organic solvent, form electrolyte, again the carbon nano-fiber with conduction is added in described electrolyte, stir, and after using ultrasonic wave to be added with the electrolyte process setting-up time of carbon nano-fiber to this; Described electrolyte solution includes lithium hexafluorophosphate solution or hexafluoroarsenate lithium solution or lithium perchlorate solution or thionyl chloride solution;
Film-making roll process: above-mentioned nanometer cell positive material is spread evenly across the two sides of aluminium foil and flattens, nanometer cell negative electrode material is spread evenly across the two sides of Copper Foil and flattens;
Rolling step: will the aluminium foil of nanometer cell positive material be scribbled and scribble the Copper Foil superposition of nanometer cell negative electrode material, the micro-pore septum that centre polypropylene (PP) and polyethylene (PE) are combined into separates, then shape not of the same race is wound into according to presetting requirement, draw the both positive and negative polarity of battery by nickel sheet, and put into metal-back or soft shape bag;
Inject electrolyte operation: collect positive electrode current with aluminium foil and draw, and collect cathodal current with Copper Foil and draw, and electrolytic solution is injected in battery;
Enclosed package: weld two positive and negative electrodes.
Advantageous Effects of the present invention: technical solution of the present invention adopts described cell positive electrode to be formed by lithium compound powder mull; Described battery cathode is formed by the grinding of carbon compound powder end; By electrolyte solution, described electrolyte adds that organic solvent is mixed with; Described membrane for polymer makes film by the multilayer microporous film of polypropylene (PP) and polyethylene (PE) compound, by grinding and ultrasonic wave two procedures and add conductivity good carbon nano-fiber processing and manufacturing, be conducive to improving cell density, reach the performance improving battery capacity performance and current charge-discharge electric energy, meanwhile, be conducive to improving electric conductivity.Because described cell density has been improved, make battery that higher multiplying power can be used to carry out discharge and recharge, reduce discharge and recharge to cell damage, thus reach the useful life extending battery.Again owing to adopting above-mentioned manufacture processing method, mutually compare with processing method of the prior art, the present invention also has simple to operation and that cost is low Advantageous Effects.
For having further understanding to object of the present invention, technical characteristic and function thereof, be hereby described in detail as follows:
[embodiment]
Below in conjunction with a kind of embodiment, a kind of nano cell provided by the present invention is described, it comprises battery positive and negative electrode, electrolyte and membrane for polymer and forms; Described cell positive electrode is formed by lithium compound powder mull; Described battery cathode is formed by the grinding of carbon compound powder end; By electrolyte solution, described electrolyte adds that organic solvent is mixed with; Described membrane for polymer makes film by the multilayer microporous film of polypropylene (PP) and polyethylene (PE) compound.
Described lithium compound powder packets contains LiMn2O4 powder or iron phosphate powder or cobalt acid lithium powder or nickle cobalt lithium manganate powder.Described carbon compound powder end includes powdered graphite or carbon dust.Described electrolyte solution includes lithium hexafluorophosphate solution or hexafluoroarsenate lithium solution or lithium perchlorate solution or thionyl chloride solution.
In the present embodiment, described lithium compound powder is that lithium manganate material is formed, and described carbon compound is that graphite powder material is formed, and described electrolyte solution is that lithium hexafluorophosphate solution is formed, illustrate described in the present embodiment the machining manufacture of nano cell
Cell positive electrode nanometer operation: first described LiMn2O4 is poured in specified containers according to setting ratio, full and uniform stirring, make the uniform cell positive material of formation, then, cell positive material is put into ball mill, be ground to micron particles, again micron particles is dissolved in organic solvent and forms micron particles solution, recycling ultrasonic wave is to after this micron particles solution-treated setting-up time, high temperature distillation extracts, then minus 20 degrees is cooled to, pure micron particles is formed after using high-strength focused ion beam-electron beam two-beam process, again this pure micron particles is ground to nano particle, i.e. nanometer cell positive material.Described lithium compound powder also includes iron phosphate powder or cobalt acid lithium powder or nickle cobalt lithium manganate powder;
Battery negative electrodes nanometer operation: first described powdered graphite is poured in specified containers according to the ratio of presetting, full and uniform stirring, make the uniform cell negative electrode material of formation, ball mill grinding is utilized to become micron particles this cell negative electrode material again, again described micron particles is dissolved in organic solvent and forms micron particles solution, recycling ultrasonic wave is to after this micron particles solution-treated setting-up time, carry out high temperature distillation extraction, then under cooling minus 20 degrees, pure micron particles is formed after using high-strength focused ion beam-electron beam two-beam process, again this pure micron particles is ground to nano particle, be nanometer negative material, described carbon compound powder also includes carbon dust.
Electrolyte nano chemical industry sequence: first described lithium hexafluoro phosphate is dissolved in organic solvent, form electrolyte, again the carbon nano-fiber with conduction is added in described electrolyte, stir, and after using ultrasonic wave to be added with the electrolyte process setting-up time of carbon nano-fiber to this; Described electrolyte solution also includes hexafluoroarsenate lithium solution or lithium perchlorate solution or thionyl chloride solution;
Film-making roll process: above-mentioned nanometer cell positive material is spread evenly across the two sides of aluminium foil and flattens, nanometer cell negative electrode material is spread evenly across the two sides of Copper Foil and flattens.
Rolling step: will the aluminium foil of nanometer cell positive material be scribbled and scribble the Copper Foil superposition of nanometer cell negative electrode material, centre polypropylene (PP) and polyethylene (PE) are combined into that micro-pore septum separates, then shape not of the same race is wound into according to presetting requirement, draw the both positive and negative polarity of battery by nickel sheet, and put into metal-back or soft shape bag.
Inject electrolyte operation: collect positive electrode current with aluminium foil and draw, and collect cathodal current with Copper Foil and draw, inject electrolyte.
Enclosed package: weld two positive and negative electrodes, product nano cell can be manufactured.Use universal meter is measured, and the voltage of described nano cell is 3V, and the internal resistance of cell is 70M Ω, under 20 degree of ambient temperatures, use 0.5C discharge and recharge, its initial capacity reaches 600MAH, uses 1C discharge and recharge, its initial capacity reaches 580MAH, after 100 circulations, and capacity attenuation 0.8%.By inferring that the cycle life of battery is at about 2500 times (80% capacity) a bit.
Described nano cell is made up of battery positive and negative electrode, electrolyte, polymeric barrier films, cell negative electrode material is made up of the native graphite of nanometer, anode is by the synthesizing lithium ion material of nanometer, the electrolyte of nano cell adds that organic solvent is made into by lithium hexafluoro phosphate, adopt by the multilayer microporous film of polyethylene (PP) and polypropylene (PE) compound as barrier film, and add the carbon nano-fiber of conduction in the electrolyte.Again through coating, film-making, roll-in, winding, cuts, dress shell, fluid injection, and encapsulation, detect, the operations such as Bao Biao make resultant battery. and adopt takeup type, make the type batteries such as 14500,18650,26650, make the battery of flexible package with superposed type.
Adopt lithium Li material as the positive pole of battery, be connected with anode by aluminium foil, centre is the barrier film of polymer, it separates positive pole and negative pole, but lithium ion Li+ can pass through and electronics e-not by, the battery cathode be made up of nano-graphite, is connected with the negative pole of battery by Copper Foil.Be the electrolyte of battery between the upper and lower side of battery, battery is by box hat or polybag enclosed package.Collect positive electrode current with aluminium foil and draw, collect cathodal current with Copper Foil and draw.
Nano cell is when charging, and the lithium ion Li+ in positive pole is moved to negative pole by membrane for polymer; In discharge process, the lithium ion Li+ in negative pole is moved to positive pole by barrier film.Utilize the embedding/deintercalation process of lithium ion, realize the repeated charge of battery.
In sum, technical solution of the present invention adopts described cell positive electrode to be formed by lithium compound powder mull; Described battery cathode is formed by the grinding of carbon compound powder end; By electrolyte solution, described electrolyte adds that organic solvent is mixed with; Described membrane for polymer makes film by the multilayer microporous film of polypropylene (PP) and polyethylene (PE) compound, by grinding and ultrasonic wave two procedures and add conductivity good carbon nano-fiber processing and manufacturing, be conducive to improving cell density, reach the performance improving battery capacity performance and current charge-discharge electric energy, meanwhile, be conducive to improving electric conductivity.Because described cell density has been improved, make battery that higher multiplying power can be used to carry out discharge and recharge, reduce discharge and recharge to cell damage, thus reach the useful life extending battery.Again owing to adopting above-mentioned manufacture processing method, mutually compare with processing method of the prior art, the present invention also has simple to operation and that cost is low Advantageous Effects.
Claims (1)
1. a nano cell, it comprises battery positive and negative electrode, electrolyte and membrane for polymer and forms; It is characterized in that: described cell positive electrode is formed by lithium compound powder mull; Described battery cathode is formed by carbon compound powder mull; By electrolyte solution, described electrolyte adds that organic solvent is mixed with; Described membrane for polymer makes film by the multilayer microporous film of polypropylene (PP) and polyethylene (PE) compound; It is characterized in that, adopt technological process to be:
Cell positive electrode nanometer operation: first described lithium compound powder is poured in specified containers according to setting ratio, full and uniform stirring, make the uniform cell positive material of formation, then, cell positive material is put into ball mill, be ground to micron particles, again micron particles is dissolved in organic solvent and forms micron particles solution, recycling ultrasonic wave is to after this micron particles solution-treated setting-up time, high temperature distillation extracts, then minus 20 degrees is cooled to, pure micron particles is formed after using high-strength focused ion beam-electron beam two-beam process, again this pure micron particles is ground to nano particle, i.e. nanometer cell positive material, described lithium compound powder packets contains the sour lithium powder of LiMn2O4 powder or iron phosphate powder or cobalt or nickle cobalt lithium manganate powder,
Battery negative electrodes nanometer operation: first carbon compound powder is poured in specified containers according to the ratio of presetting, full and uniform stirring, make the uniform cell negative electrode material of formation, ball mill grinding is utilized to become micron particles this cell negative electrode material again, again described micron particles is dissolved in organic solvent and forms micron particles solution, recycling ultrasonic wave is to after this micron particles solution-treated setting-up time, carry out high temperature distillation extraction, then under cooling minus 20 degrees, pure micron particles is formed after using high-strength focused ion beam-electron beam two-beam process, again this pure micron particles is ground to nano particle, be nanometer negative material, described carbon compound powder packets contains powdered graphite or carbon dust,
Electrolyte nano chemical industry sequence: first electrolyte solution is dissolved in organic solvent, form electrolyte, then the carbon nano-fiber with conduction is added in described electrolyte, stir, and after using ultrasonic wave to be added with the electrolyte process setting-up time of carbon nano-fiber to this; Described electrolyte solution includes lithium hexafluoro phosphate (LIPF6) solution or hexafluoroarsenate lithium (LIASF6) solution or lithium perchlorate (LIClO4) solution or thionyl chloride (SOCL2) solution;
Film-making roll process: the cell positive material of nanometer is spread evenly across the two sides of aluminium foil and flattens, is spread evenly across the two sides of Copper Foil by the cell negative electrode material of nanometer and flattens;
Rolling step: will the aluminium foil of nanometer cell positive material be scribbled and scribble the Copper Foil superposition of nanometer cell negative electrode material, centre polypropylene (PP) and polyethylene (PE) are combined into that micro-pore septum separates, then shape not of the same race is wound into according to presetting requirement, draw the both positive and negative polarity of battery by nickel sheet, and put into metal-back or soft shape bag;
Inject electrolyte operation: collect positive electrode current with aluminium foil and draw, and collect cathodal current with Copper Foil and draw, inject electrolyte;
Enclosed package: weld two positive and negative electrodes, airtight closed.
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| CN201110118935.6A CN102779974B (en) | 2011-05-09 | 2011-05-09 | Nano cell and process this nano cell manufacture method |
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| CN102779974B true CN102779974B (en) | 2015-09-30 |
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| CN103022483A (en) * | 2012-12-07 | 2013-04-03 | 南京工业大学 | Preparation method for positive electrode material of power lithium ion battery |
| CN110707964B (en) * | 2019-10-10 | 2021-09-21 | 内蒙古工业大学 | Electric furnace steelmaking noise power generation device adopting piezoelectric method |
| CN111668480B (en) * | 2020-06-22 | 2023-07-28 | 贝特瑞新材料集团股份有限公司 | Graphite anode material, preparation method thereof and lithium ion battery |
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| CN1339835A (en) * | 2000-08-22 | 2002-03-13 | 潘树明 | Synthesis process of positive electrode for high performance lithium iron secondary cell |
| CN1357933A (en) * | 2000-12-08 | 2002-07-10 | 兰州大学化学化工学院 | Prepn of LiCoC2 as nanometer positive electrode material for lithium ion cell |
| CN1747218A (en) * | 2004-09-03 | 2006-03-15 | 香港科技大学 | The lithium ion battery of incorporating carbon nanostructure materials |
| CN101229917A (en) * | 2007-11-16 | 2008-07-30 | 中南民族大学 | Method for synthesizing lithium ion-cell anode material LiFePO4 |
| CN101901899A (en) * | 2009-12-07 | 2010-12-01 | 耿世达 | Nano lithium iron phosphate material for lithium battery anode and manufacturing method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1339835A (en) * | 2000-08-22 | 2002-03-13 | 潘树明 | Synthesis process of positive electrode for high performance lithium iron secondary cell |
| CN1357933A (en) * | 2000-12-08 | 2002-07-10 | 兰州大学化学化工学院 | Prepn of LiCoC2 as nanometer positive electrode material for lithium ion cell |
| CN1747218A (en) * | 2004-09-03 | 2006-03-15 | 香港科技大学 | The lithium ion battery of incorporating carbon nanostructure materials |
| CN101229917A (en) * | 2007-11-16 | 2008-07-30 | 中南民族大学 | Method for synthesizing lithium ion-cell anode material LiFePO4 |
| CN101901899A (en) * | 2009-12-07 | 2010-12-01 | 耿世达 | Nano lithium iron phosphate material for lithium battery anode and manufacturing method thereof |
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