CN103956273B - Method for manufacturing electrode pieces for supercapacitors - Google Patents
Method for manufacturing electrode pieces for supercapacitors Download PDFInfo
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- 238000000034 method Methods 0.000 title abstract description 5
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000007772 electrode material Substances 0.000 claims abstract description 38
- 239000004020 conductor Substances 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 23
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 238000007731 hot pressing Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 30
- 238000000576 coating method Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- 238000004898 kneading Methods 0.000 claims description 8
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 7
- 239000002041 carbon nanotube Substances 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000001879 gelation Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000004537 pulping Methods 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000011149 active material Substances 0.000 abstract description 16
- 239000011230 binding agent Substances 0.000 abstract description 6
- 235000015110 jellies Nutrition 0.000 abstract description 4
- 239000008274 jelly Substances 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract 2
- 238000010298 pulverizing process Methods 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 229910021389 graphene Inorganic materials 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000006258 conductive agent Substances 0.000 description 4
- 239000000499 gel Substances 0.000 description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000006230 acetylene black Substances 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004966 Carbon aerogel Substances 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- QOSMNYMQXIVWKY-UHFFFAOYSA-N Propyl levulinate Chemical compound CCCOC(=O)CCC(C)=O QOSMNYMQXIVWKY-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
Classifications
-
- 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
- Y02E60/13—Energy storage using capacitors
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- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
一种超级电容器用极片的制备方法，将导电材料与粘结剂混合均匀，得到胶化导电材料，将活性物质加入到胶化导电材料中并粉碎成电极材料大颗粒，将电极材料大颗粒捏合成电极材料弹性胶状体，加入水，搅拌成电极材料浆料，涂覆于集流体上，热压压实，制成体密度为0.62g/cm3～0.75g/cm3成品极片。优点是：能够降低导电材料的用量，并提高导电材料的分散性及其与活性材料的附着性，同时，还有效降低了电极的内阻，提高了极片的体密度，增加了用此极片制作的超级电容器的体积比能量。A method for preparing a pole piece for a supercapacitor, comprising uniformly mixing a conductive material and a binder to obtain a gelled conductive material, adding an active material to the gelled conductive material and pulverizing it into large particles of the electrode material, and mixing the large particles of the electrode material Knead into an electrode material elastic jelly, add water, stir to form an electrode material slurry, coat it on the current collector, and compact it by hot pressing to make a finished electrode piece with a bulk density of 0.62g/cm 3 to 0.75g/cm 3 . The advantages are: it can reduce the amount of conductive materials used, and improve the dispersion of conductive materials and their adhesion to active materials. The volume specific energy of supercapacitors made of sheets.
Description
技术领域technical field
本发明涉及一种超级电容器用极片的制备方法。The invention relates to a preparation method of pole pieces for supercapacitors.
背景技术Background technique
超级电容器作为一种新兴储能器件，以其高比功率、高比能量、充放电速度快、使用温度范围宽、长寿命、免维护等特性，在智能仪表、电力、医疗、太阳能风能、玩具、新能源汽车等领域有广泛应用。As a new energy storage device, supercapacitors are widely used in smart meters, electric power, medical care, solar wind energy, toys, etc. , new energy vehicles and other fields are widely used.
超级电容器从结构上分为扣式型和卷绕型，其中卷绕型超级电容器的电极片主要包括活性物质和集流体。Supercapacitors are structurally divided into button type and winding type, and the electrode sheet of winding type supercapacitor mainly includes active material and current collector.
现有卷绕型超级电容器的电极片制备方法以涂覆方式为主，即先将活性物质和导电剂混合，然后加入粘结剂和水，搅拌成浆料，涂覆于集流体上。此方法存在的问题是在制备过程中活性物质与导电剂之间的接触以及活性物质与活性物质之间的接触不充分，导致电极片的内阻大，体密度低，单位体积内电极的比容量低。The existing preparation method of the electrode sheet of the wound supercapacitor is mainly based on the coating method, that is, the active material and the conductive agent are mixed first, and then the binder and water are added, stirred into a slurry, and coated on the current collector. The problem with this method is that the contact between the active material and the conductive agent and the contact between the active material and the active material are insufficient during the preparation process, resulting in large internal resistance of the electrode sheet, low bulk density, and the ratio of the electrode per unit volume. low capacity.
发明内容Contents of the invention
本发明要解决的技术问题是提供一种超级电容器用极片的制备方法，该方法可使导电材料与粘结剂的充分结合，保证活性物质之间以及活性物质和导电剂之间的接触良好，从而使电极片内阻小，体密度高，单位体积内比容量高。The technical problem to be solved by the present invention is to provide a method for preparing pole pieces for supercapacitors, which can fully combine conductive materials and binders, and ensure good contact between active materials and between active materials and conductive agents , so that the internal resistance of the electrode sheet is small, the bulk density is high, and the specific capacity per unit volume is high.
本发明的技术解决方案是：Technical solution of the present invention is:
一种超级电容器用极片的制备方法，其具体步骤如下：A kind of preparation method of pole piece for supercapacitor, its concrete steps are as follows:
（1）导电材料胶化(1) Conductive material gelation
将导电材料与粘结剂按照质量比为1:1～5:1混合均匀，得到胶化导电材料；Mix the conductive material and the binder uniformly according to the mass ratio of 1:1 to 5:1 to obtain the gelled conductive material;
（2）造大颗粒(2) Make large particles
将活性物质加入到胶化导电材料中并粉碎成粒径为0.1mm～10mm的电极材料大颗粒，所述导电材料与活性物质的质量比为1:1～1:10； Adding the active material to the gelled conductive material and crushing it into large particles of electrode material with a particle size of 0.1 mm to 10 mm, the mass ratio of the conductive material to the active material is 1:1 to 1:10;
（3）捏合(3) kneading
将电极材料大颗粒捏合成电极材料弹性胶状体； Knead the large particles of the electrode material into an elastic gel of the electrode material;
（4）制浆(4) pulping
将电极材料弹性胶状体加入水，搅拌成固含量为30wt%～40wt%的电极材料浆料； Add the electrode material elastic gel into water, and stir to form an electrode material slurry with a solid content of 30wt% to 40wt%;
（5）涂覆(5) coating
将电极材料浆料涂覆于集流体上，制得未处理的极片；Coating the electrode material slurry on the current collector to produce an untreated pole piece;
（6）热压(6) Hot pressing
将未处理的极片在60℃～240℃下热压压实，制成体密度为0.62g/cm3～0.75g/cm3成品极片。The untreated pole piece is hot-pressed and compacted at 60°C to 240°C to produce a finished pole piece with a bulk density of 0.62g/cm 3 to 0.75g/cm 3 .
所述活性物质为活性炭、碳纤维、石墨烯、碳纳米管、炭气凝胶、金属氧化物、导电聚合物中的一种。The active material is one of activated carbon, carbon fiber, graphene, carbon nanotube, carbon aerogel, metal oxide, and conductive polymer.
所述活性物质为活性炭、石墨烯或碳纳米管。The active material is activated carbon, graphene or carbon nanotube.
所述导电剂和粘结剂的比例为1:1。The ratio of the conductive agent to the binder is 1:1.
所述导电材料为导电炭黑、乙炔黑、导电石墨、石墨烯、碳纳米管、碳纤维中的一种或几种。The conductive material is one or more of conductive carbon black, acetylene black, conductive graphite, graphene, carbon nanotubes, and carbon fibers.
所述粘结剂为聚四氟乙烯、羧甲基纤维素钠、水性胶、聚偏氟乙烯、丁苯橡胶、聚乙烯、聚丙烯中的一种或者几种。The binder is one or more of polytetrafluoroethylene, sodium carboxymethyl cellulose, water-based glue, polyvinylidene fluoride, styrene-butadiene rubber, polyethylene, and polypropylene.
步骤（3）的捏合时，采用行星式搅拌机、捏合机、高速搅拌机或球磨机进行捏合。During the kneading in step (3), planetary mixers, kneaders, high-speed mixers or ball mills are used for kneading.
热压时，将加热对辊机预热到40℃～100℃，用喷雾剂将未处理极片喷湿，用加热对辊机将经喷湿的未处理极片压实后，进行加热烘干；所述喷雾剂为水、甲醇、乙醇、异丙醇、碳酸丙烯酯、苯乙烯、全氯乙烯、三氯乙烯、乙烯乙二醇醚、三乙醇胺、醋酸甲酯、醋酸乙酯、醋酸丙酯等的一种或几种。When hot pressing, preheat the heating roller machine to 40 ℃ ~ 100 ℃, spray the untreated pole piece with spray, compact the sprayed untreated pole piece with the heating roller machine, and then heat and dry dry; the spray is water, methanol, ethanol, isopropanol, propylene carbonate, styrene, perchlorethylene, trichlorethylene, ethylene glycol ether, triethanolamine, methyl acetate, ethyl acetate, acetic acid One or more of propyl ester etc.
本发明的有益效果：Beneficial effects of the present invention:
用活性物质和胶化导电材料制备电极材料大颗粒可以提高导电材料的分散性，通过捏合成电极材料弹性胶状体可以提高导电材料与活性物质之间的附着性，改善了导电材料与活性物质之间的接触，从而达到了降低导电材料的用量，并且降低了电极的内阻，提高了极片的体密度，增加了用此极片制作的超级电容器的体积比容量。The preparation of large particles of electrode materials with active materials and gelled conductive materials can improve the dispersion of conductive materials, and the adhesion between conductive materials and active materials can be improved by kneading into elastic colloids of electrode materials, which improves the contact between conductive materials and active materials. Contact between them, thereby reducing the amount of conductive material, reducing the internal resistance of the electrode, increasing the bulk density of the pole piece, and increasing the volume specific capacity of the supercapacitor made of this pole piece.
具体实施方式detailed description
实施例1Example 1
（1）导电材料胶化(1) Conductive material gelation
将导电炭黑与聚四氟乙烯按照质量比为1:1混合均匀，得到胶化导电材料；Mix conductive carbon black and polytetrafluoroethylene evenly according to the mass ratio of 1:1 to obtain a gelled conductive material;
（2）造大颗粒(2) Make large particles
将石墨烯加入到胶化导电材料中并粉碎成粒径为0.1mm～10mm的电极材料大颗粒，所述导电炭黑与石墨烯的质量比为1:1；Graphene is added to the gelled conductive material and crushed into large particles of electrode material with a particle size of 0.1 mm to 10 mm, and the mass ratio of the conductive carbon black to graphene is 1:1;
（3）捏合(3) kneading
将电极材料大颗粒用行星式搅拌机捏合成电极材料弹性胶状体；Knead the large particles of the electrode material into an elastic jelly of the electrode material with a planetary mixer;
（4）制浆(4) pulping
将电极材料弹性胶状体加入水，搅拌成固含量(电极材料弹性胶状体的质量)为30wt%的电极材料浆料；The electrode material elastic jelly is added to water, and stirred to form an electrode material slurry with a solid content (the quality of the electrode material elastic jelly) of 30wt%;
（5）涂覆(5) coating
将电极材料浆料涂覆于集流体上，制得未处理的极片； Coating the electrode material slurry on the current collector to produce an untreated pole piece;
（6）热压(6) Hot pressing
将未处理的极片在60℃下热压压实，热压时，将加热对辊机预热到40℃，用水将未处理极片喷湿，用加热对辊机将经喷湿的未处理极片压实后，进行加热烘干，制成体密度为0.62g/cm3成品极片。Hot-press the untreated pole piece at 60°C. When hot-pressing, preheat the heated pair of rollers to 40°C, spray the untreated pole piece with water, and use the heated pair of rollers to wet the wetted pole piece. After the processed pole piece is compacted, it is heated and dried to make a finished pole piece with a bulk density of 0.62g/cm 3 .
实施例2Example 2
（1）导电材料胶化(1) Conductive material gelation
将乙炔黑与丁苯橡胶按照质量比为3:1混合均匀，得到胶化导电材料； Mix acetylene black and styrene-butadiene rubber evenly according to the mass ratio of 3:1 to obtain a gelled conductive material;
（2）造大颗粒(2) Make large particles
将活性炭加入到胶化导电材料中并粉碎成粒径为0.1mm～10mm的电极材料大颗粒，所述乙炔黑与活性炭的质量比为1:10；Activated carbon is added to the gelled conductive material and crushed into large particles of electrode material with a particle size of 0.1 mm to 10 mm, and the mass ratio of acetylene black to activated carbon is 1:10;
（3）捏合(3) kneading
将电极材料大颗粒用球磨机捏合成电极材料弹性胶状体；Knead the large particles of the electrode material into an elastic colloid of the electrode material with a ball mill;
（4）制浆(4) pulping
将电极材料弹性胶状体加入水，搅拌成固含量为40wt%的电极材料浆料；Add the electrode material elastic colloid into water, and stir to form an electrode material slurry with a solid content of 40wt%;
（5）涂覆(5) coating
将电极材料浆料涂覆于集流体上，制得未处理的极片； Coating the electrode material slurry on the current collector to produce an untreated pole piece;
（6）热压(6) Hot pressing
将未处理的极片在240℃下热压压实，热压时，将加热对辊机预热到100℃，用苯乙烯将未处理极片喷湿，用加热对辊机将经喷湿的未处理极片压实后，进行加热烘干，制成体密度为0.75g/cm3成品极片。Hot press the untreated pole piece at 240°C. During hot pressing, preheat the heating roller machine to 100°C, spray the untreated pole piece with styrene, and use the heating roller machine to wet the warp After the untreated pole piece is compacted, it is heated and dried to make a finished pole piece with a bulk density of 0.75g/cm 3 .
实施例3Example 3
（1）导电材料胶化(1) Conductive material gelation
将碳纤维与聚丙烯按照质量比为5:1混合均匀，得到胶化导电材料； Mix carbon fiber and polypropylene evenly according to the mass ratio of 5:1 to obtain a gelled conductive material;
（2）造大颗粒(2) Make large particles
将碳纳米管加入到胶化导电材料中并粉碎成粒径为0.1mm～10mm的电极材料大颗粒，所述碳纤维与碳纳米管的质量比为1:5；Adding carbon nanotubes to the gelled conductive material and crushing them into large particles of electrode material with a particle size of 0.1 mm to 10 mm, the mass ratio of the carbon fibers to the carbon nanotubes is 1:5;
（3）捏合(3) kneading
将电极材料大颗粒用高速搅拌机捏合成电极材料弹性胶状体；Knead the large particles of the electrode material with a high-speed mixer to form an elastic gel of the electrode material;
（4）制浆(4) pulping
将电极材料弹性胶状体加入水，搅拌成固含量为35wt%的电极材料浆料；The electrode material elastic gel is added to water, and stirred to form an electrode material slurry with a solid content of 35wt%;
（5）涂覆(5) coating
将电极材料浆料涂覆于集流体上，制得未处理的极片；Coating the electrode material slurry on the current collector to produce an untreated pole piece;
（6）热压(6) Hot pressing
将未处理的极片在150℃下热压压实，热压时，将加热对辊机预热到80℃，用三氯乙烯将未处理极片喷湿，用加热对辊机将经喷湿的未处理极片压实后，进行加热烘干，制成体密度为0.70g/cm3成品极片。Hot-press the untreated pole piece at 150°C. When hot-pressing, preheat the heating roller machine to 80°C, spray the untreated pole piece wet with trichlorethylene, and use the heating roller machine to spray the After the wet untreated pole piece is compacted, it is heated and dried to make a finished pole piece with a bulk density of 0.70g/cm 3 .
对比例1Comparative example 1
将导电石墨和活性炭混合，然后加入丁苯橡胶和水，所述导电石墨、活性炭与丁苯橡胶的质量比为10:85:5，搅拌成固含量为35wt%的电极材料浆料，涂覆于集流体上，制得未处理的极片，将未处理的极片在150℃下热压压实，热压时，将加热对辊机预热到80℃，用乙醇将未处理极片喷湿，用加热对辊机将经喷湿的未处理极片压实后，进行加热烘干，制成体密度为0.6g/cm3成品极片。Conductive graphite and activated carbon are mixed, then add styrene-butadiene rubber and water, the mass ratio of described conductive graphite, activated carbon and styrene-butadiene rubber is 10:85:5, stir into the electrode material slurry that solid content is 35wt%, coating On the current collector, an untreated pole piece is made, and the untreated pole piece is hot-pressed and compacted at 150°C. When hot-pressing, the heating roller machine is preheated to 80°C, and the untreated pole piece is heated with ethanol. Spray wet, compact the sprayed untreated pole piece with a heating roller machine, then heat and dry to make a finished pole piece with a bulk density of 0.6g/cm 3 .
用本发明实施例1～实施例3以及对比例1所制得的电极片分别铆钉上导针，卷绕成卷芯，然后经过120℃除水，在氮气的环境中组立封装，制得超级电容器产品，经过测试，三种极片分别制得的超级电容器的产品性能如表1：The electrode sheets prepared in Examples 1 to 3 of the present invention and Comparative Example 1 were respectively riveted with guide pins, wound into cores, then dewatered at 120°C, assembled and packaged in a nitrogen environment, and obtained Supercapacitor products, after testing, the product properties of supercapacitors made of three kinds of pole pieces are shown in Table 1:
表1 本发明实施例1～实施例3以及对比例1的极片制得的超级电容器产品的电化学性能Table 1 Electrochemical properties of supercapacitor products prepared from the pole pieces of Examples 1 to 3 of the present invention and Comparative Example 1
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| CN102360960A (en) * | 2011-10-14 | 2012-02-22 | 渤海大学 | Super capacitor electrode material and super capacitor electrode production method |
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