CN100492749C - 生产电化学元件用隔膜/电极组件的方法 - Google Patents
生产电化学元件用隔膜/电极组件的方法 Download PDFInfo
- Publication number
- CN100492749C CN100492749C CNB021201943A CN02120194A CN100492749C CN 100492749 C CN100492749 C CN 100492749C CN B021201943 A CNB021201943 A CN B021201943A CN 02120194 A CN02120194 A CN 02120194A CN 100492749 C CN100492749 C CN 100492749C
- Authority
- CN
- China
- Prior art keywords
- electrode
- paste mixture
- lithium
- diaphragm
- pvdf
- 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.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 10
- 229910052729 chemical element Inorganic materials 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000011149 active material Substances 0.000 claims abstract description 10
- 238000009830 intercalation Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 18
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 14
- 239000002033 PVDF binder Substances 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 13
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 13
- 239000002562 thickening agent Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 239000007774 positive electrode material Substances 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 229920000307 polymer substrate Polymers 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 2
- 150000002697 manganese compounds Chemical class 0.000 claims description 2
- 239000003607 modifier Substances 0.000 claims 1
- 239000007773 negative electrode material Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 abstract description 11
- -1 polyfluoropropylen Polymers 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000010416 ion conductor Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000005486 organic electrolyte Substances 0.000 abstract 1
- 229920000131 polyvinylidene Polymers 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000004902 Softening Agent Substances 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910015645 LiMn Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011245 gel electrolyte Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- 229920006370 Kynar Polymers 0.000 description 1
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 241001083492 Trapa Species 0.000 description 1
- 235000014364 Trapa natans Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002579 anti-swelling effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- SIXOAUAWLZKQKX-UHFFFAOYSA-N carbonic acid;prop-1-ene Chemical compound CC=C.OC(O)=O SIXOAUAWLZKQKX-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 125000001979 organolithium group Chemical group 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000009165 saligot Nutrition 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
- H01M4/623—Binders being polymers fluorinated polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- 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
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
- Cell Separators (AREA)
Abstract
一种生产电化学元件用隔膜/电极组件的方法，其包含至少一个锂-嵌入电极，在其聚合物基质中，精细地分散着不溶于该聚合物的电化学活性材料，按此法，含活性材料的聚合物基质直接施加到多孔隔膜材料上或者到由固体离子导体组成的层上，然后干燥。聚偏二氟乙烯和六氟丙烯被用作该聚合物。为了生产电化学元件，隔膜/电极组件或电极/隔膜/电极组件，在按照该方法生产出来之后，被层合到至少一个收集电极或电极上，然后该叠层浸渍以液态有机电解质。
Description
技术领域
本发明涉及生产电化学元件用隔膜/电极组件的方法，其包含至少一个锂-嵌入电极，在该电极的聚合物基质中精细地分散着不溶于该聚合物的电化学活性材料。本发明还涉及具有采用该方法生产的隔膜/电极组件的电化学元件。
背景技术
具有带锂-嵌入材料的电极的薄膜电池，已知有多种多样生产方法。
例如，WO 00/57504公开一种薄膜电池，其中正电极由糊料混合物制成，例如由二氧化锰、碳和电解质组成的糊料，其中该糊料被涂敷到一个框架中。然后，一片隔膜放在框架上，并在较高温度下被压到该糊料电极上。像这样的方法存在着正电极材料糊料物质已经包含电解质溶液的缺点，因此其余的加工步骤必须尽可能快地和在特殊条件下，特别是在干燥区域进行。
文献EP 954 042 A1公开一种锂离子可再充电电池，其中正和负片状电极借助增粘树脂层被连接在隔膜上。特别是，增粘层还会在电极与隔膜之间产生一种不希望的绝缘作用，因此增加了内阻。另外，像这样的层还会导致不希望的物质进入电池中。
文献EP 1056 142公开一种锂离子电池，其中凝胶电解质布置在正与负电极片之间。该凝胶，尤其由聚偏二氟乙烯或聚偏二氟乙烯共聚物组成。此种电池的生产过程复杂，因为电极和凝胶电解质的加工必须在干燥区域进行。再者，像这样的电解质往往不能形成充足的电导率。
WO/0069010公开一种锂离子电池，其中聚烯烃隔膜作为一种隔膜被用在正与负电极之间，并涂以与电极中使用的相同粘结剂聚合物。此种程序复杂，因为该隔膜必须首先采用湿化学方式涂布，以后仍然需要进行层合。
文献DE 19 916 041 A1公开一种方法，其中先是含石墨的糊料混合物，然后是由聚合物混合物和二氧化硅以糊料形式组成的分隔条，被施涂到一种机械上牢固的载体片，例如铜片上，然后加工成形为片材。为避免穿透该凝胶状分隔条与活性物质形成接触。像这样的方法要求比较厚的分隔层，从而增加了电池的内阻和降低了能量密度。
电极与隔膜以及电极与收集电极之间的附着乃是电化学元件正常工作的核心。由于电极在电解质中溶胀或由于分解产生气体，从而可能在电化学意义上丧失接触，或者导致机械接触的丧失。层合的电池在此种情况下则具有优势，因为不会由于例如出气而导致接触的自发丧失，因此该成形因素意味着可以达到较大能量密度。另外，凭借其生产方法，层合物通常也更抗溶胀。
像这样的层合物一般基于用湿化学手段生产的片材，其中相当数量，一般大于70wt％活性材料被悬浮在溶解的粘结剂聚合物中，并借助刮板挤出而成形为片材。该悬浮体还可任选包含软化剂和改善电导率的添加剂。该电池组件通过电极片层合到片状收集电极上，然后如此生产的组件在另一个层合步骤中连接到隔膜上而制成。层合温度一般介于110～140℃，并在条状层合机上进行。
然而，活性电极材料并非都能先采用湿化学方法倾倒(浇铸)成形为片材，随后再趁热层合。某些片材不能按如此方式加工，具体取决于它们生产所用的配方。不过，终归有一种可获得层合能力的途径，这就是加入软化剂。在PVDF和HFP聚合物的情况下，用邻苯二甲酸二丁酯作为软化剂，而它又必须在层合加工之后萃取出来。
特别是，基于锰的电极材料，例如二氧化锰，或者尖晶石，如LiMn2O4，由于其成本低、环境友好以及良好的电容值，故用于锂电池颇受重视，但采用上面提到的方法加工时总是遇到困难。
发明内容
按照规定的目的，本发明是一种生产本文开头所提到的那种类型隔膜/电极组件的方法，它容易实施并且其中，特别是其加工可在任何要求的气氛中和采用多种多样电极材料实施。
在本文开头所提到的那种类型的方法中，本发明的目的是由以下方案的优异特征达到的：
一种生产电化学电池用隔膜/电极组件的方法，其包含至少一个锂-嵌入电极，该方法包含：在PVDF/HFP聚合物基质中精细地分散不溶于该聚合物的锂-嵌入电极用电化学活性材料，以形成含65～98wt％正电极材料的糊料，将该糊料直接施加到多孔聚烯烃隔膜上，然后干燥该糊料。
该方法的优势实施方式，以及具有采用该方法生产的电极/隔膜组件的电化学电池，在下文中均做了规定。
在该方法中，电极和基材的活性材料的润湿能力和有效表面面积(BET表面面积)是至关重要的。例如，若活性材料的BET表面面积使得，由于该材料的表面特性导致粘结聚合物集聚在凹陷内，则在粘结到光滑粘结基础上的过程中将产生根本性的困难。像这样的效应尤其发生在，例如当采用二氧化锰或尖晶石LiMn2O4时，特别是配合使用氟代粘结剂聚合物时。
附图说明
图1显示，按照该实例生产的扁平电池的电压U随规格化电容CN变化的情况(曲线1，涂黑方块)，以百分数表示，以及相比之下，采用工业标准生产方法(压入阴极片和隔膜)生产的、基于与该扁平电池相同电化学原理和阴极层厚度的钮扣电池电容(曲线2，黑色背景上的白色、菱形)。从该曲线可以看出，在这一电压范围从该扁平电池发出的功率竟然要好得多。电流密度是0.27mA/cm2。
具体实施方式
按照本发明，该问题是通过活性材料倾倒在其上的载体也同样具有孔隙来解决的。本身已知的聚烯烃隔膜便具有此种特性。优点在于在生产中可以不需要任何例如由聚酯构成的中间基础片材，与层合加工相比，也不需要对隔膜预处理，该隔膜具有与电极的粘结剂聚合物相容的层。因此，可以不需要任何特殊措施就将以往不可能结合在一起形成多层的材料组合组装在一起。
聚偏二氟乙烯和六氟丙烯被作为适合本发明隔膜/电极组件的聚合物使用。例如，N-甲基吡咯烷(pyroildin)-2-酮或丙酮可用作溶剂。该多孔隔膜材料由，特别是，聚烯烃或者由聚丙烯、聚乙烯构成，或者可由这些材料当中不同材料的多个层制成。
金属锂或改性石墨化碳可用作负电极的材料，而正电极则包含锰化合物或者，例如，电解二氧化锰作为该锂-嵌入材料。
用于负电极片材的糊料混合物包含55～95wt％，优选65～85wt％碳材料。正电极使用的糊料混合物包含65～98wt％，优选65～95wt％正电极材料.本发明糊料混合物包含50～75％，优选55～65wt％溶剂。正电极片材的PVDF/HFP比值介于最高99.5～最低0.5，优选介于最高80～最低20。
在负电极片材中，PVDF/HFP比值介于99.5～0.5，优选85～15。
该物质的生产中，初始糊料的粘度规定在1～10帕，优选3～6帕.
为生产电化学元件，隔膜/电极组件或电极/隔膜/电极组件，在按照本发明方法生产出来以后，层合到至少一个收集电极或电极上，然后该叠层浸渍以液态有机电解质。
实施例
糊料物质的制备：77wt％在360℃热活化过的二氧化锰(电解二氧化锰)、6wt％石墨(KS6，Timcal)、2wt％导电碳黑(Super P，Sedema)，7wt％聚偏二氟乙烯/六氟丙烯(Kynar Flex 2801，Elf Atochem)和8wt％碳酸丙烯酯(Merck)在丙酮中进行混合.将如此获得的物质刮抹到聚烯烃隔膜(聚丙烯，Celgard 2500)上，蒸发掉溶剂，在真空中干燥(110℃，48h)如此获得的条状物，用有机锂电解质浸渍它，冲压出尺寸1.6 x 2.3cm2的隔膜/电极组件片，然后将它们插入到铜片套中，该套的上表面已预先压制上了锂，并且其杯面备有石墨基导电改进层，然后超声波焊接杯子与盖子，其中在铜与铜相遇的地方加设绝缘层.
Claims (19)
1.一种生产电化学电池用隔膜/电极组件的方法，其包含至少一个锂-嵌入电极，该方法包含：
在PVDF/HFP聚合物基质中精细地分散不溶于该聚合物基质的锂-嵌入电极用电化学活性材料，以形成含65～98wt％正电极材料的糊料混合物，
将该糊料混合物直接施用到多孔聚烯烃隔膜上，
然后干燥该糊料混合物。
2.权利要求1的方法，其中该糊料混合物包含N-甲基吡咯烷-2-酮或丙酮作为溶剂。
3.权利要求1或2的方法，其中该糊料混合物包含锰化合物作为正锂-嵌入材料。
4.权利要求3的方法，其中该糊料混合物包含电解二氧化锰作为正锂-嵌入材料。
5.权利要求1或2的方法，其中该糊料混合物含75～95wt％的正电极材料。
6.权利要求1或2的方法，其中金属锂被用作负活性材料。
7.权利要求1或2的方法，其中采用石墨化碳改性物作为负电极片用的电化学活性材料。
8.权利要求7的方法，其中负电极片用的糊料混合物包含55～95wt％碳材料。
9.权利要求8的方法，其中负电极片用的糊料混合物包含65～85wt％碳材料。
10.权利要求1或2的方法，其中糊料混合物包含50～75wt％溶剂。
11.权利要求10的方法，其中糊料混合物包含55～65wt％溶剂。
12.权利要求1或2的方法，其中正电极片用的PVDF/HFP比值介于99.5～0.5。
13.权利要求12的方法，其中正电极片用的PVDF/HFP比值介于80～20。
14.权利要求1或2的方法，其中负电极片用的PVDF/HFP比值介于99.5～0.5。
15.权利要求14的方法，其中负电极片用的PVDF/HFP比值介于85～15。
16.权利要求1或2的方法，其中初始糊料的粘度规定在1～10帕。
17.权利要求16的方法，其中初始糊料的粘度规定在3～6帕。
18.一种电化学电池，其具有至少一个电极/隔膜组件，它是采用权利要求1～17任一项的方法生产的。
19.权利要求18的电化学电池，其特征在于，其中隔膜/电极组件或电极/隔膜/电极组件，在按照权利要求1～17任一项的方法生产出来之后，被层合到至少一个收集电极或电极上，然后将该叠层浸渍以液态有机电解质。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10125619A DE10125619A1 (de) | 2001-05-25 | 2001-05-25 | Verfahren zur Herstellung eines Separator/Elektrodenverbundes für galvanische Elemente |
| DE10125619.1 | 2001-05-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1388606A CN1388606A (zh) | 2003-01-01 |
| CN100492749C true CN100492749C (zh) | 2009-05-27 |
Family
ID=7686189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021201943A Expired - Fee Related CN100492749C (zh) | 2001-05-25 | 2002-05-24 | 生产电化学元件用隔膜/电极组件的方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20020177037A1 (zh) |
| EP (1) | EP1261046B1 (zh) |
| JP (1) | JP2003022800A (zh) |
| KR (1) | KR100870604B1 (zh) |
| CN (1) | CN100492749C (zh) |
| DE (1) | DE10125619A1 (zh) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100987260B1 (ko) * | 2007-07-25 | 2010-10-12 | 주식회사 엘지화학 | 전기화학소자 및 그 제조방법 |
| DE102008015965A1 (de) | 2008-03-20 | 2009-09-24 | Varta Microbattery Gmbh | Galvanisches Element mit Foliendichtung |
| KR101283487B1 (ko) * | 2011-07-20 | 2013-07-12 | 주식회사 엘지화학 | 세퍼레이터, 그 제조방법 및 이를 구비한 전기화학소자 |
| KR101434377B1 (ko) * | 2011-10-21 | 2014-08-27 | 데이진 가부시키가이샤 | 비수계 이차전지용 세퍼레이터 및 비수계 이차전지 |
| CN103891002B (zh) * | 2011-10-21 | 2017-03-15 | 帝人株式会社 | 非水系二次电池用隔膜及非水系二次电池 |
| CN111403183A (zh) * | 2020-03-26 | 2020-07-10 | 浙江浙能技术研究院有限公司 | 一种由石墨烯薄膜-绝缘滤膜构成的电极-隔膜结构 |
| CN115513602B (zh) * | 2022-10-21 | 2024-01-26 | 武汉中金泰富新能源科技有限公司 | 一种含界面管理层结构电极的动力电池制造工艺 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2674685B1 (fr) * | 1991-03-29 | 1996-12-13 | Alsthom Cge Alcatel | Generateur electrochimique secondaire au lithium et a electrolyte organique liquide. |
| US5894656A (en) * | 1997-04-11 | 1999-04-20 | Valence Technology, Inc. | Methods of fabricating electrochemical cells |
| FR2766296B1 (fr) * | 1997-07-17 | 1999-08-20 | Alsthom Cge Alcatel | Procede de fabrication d'un generateur electrochimique de structure unitaire |
| JP4075259B2 (ja) * | 1999-05-26 | 2008-04-16 | ソニー株式会社 | 固体電解質二次電池 |
| CN1399801A (zh) * | 1999-11-23 | 2003-02-26 | 威伦斯技术公司 | 多层电化学电池 |
| US6488721B1 (en) * | 2000-06-09 | 2002-12-03 | Moltech Corporation | Methods of preparing electrochemical cells |
-
2001
- 2001-05-25 DE DE10125619A patent/DE10125619A1/de not_active Withdrawn
-
2002
- 2002-05-02 EP EP02009822A patent/EP1261046B1/de not_active Expired - Lifetime
- 2002-05-09 KR KR1020020025433A patent/KR100870604B1/ko active IP Right Grant
- 2002-05-21 US US10/152,954 patent/US20020177037A1/en not_active Abandoned
- 2002-05-24 JP JP2002150999A patent/JP2003022800A/ja active Pending
- 2002-05-24 CN CNB021201943A patent/CN100492749C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1388606A (zh) | 2003-01-01 |
| KR100870604B1 (ko) | 2008-11-25 |
| EP1261046A1 (de) | 2002-11-27 |
| KR20020090117A (ko) | 2002-11-30 |
| US20020177037A1 (en) | 2002-11-28 |
| JP2003022800A (ja) | 2003-01-24 |
| EP1261046B1 (de) | 2012-11-28 |
| DE10125619A1 (de) | 2002-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW434604B (en) | Supercapacitor structure and method of making same | |
| JP6608862B2 (ja) | ナノ多孔性セパレータ層を利用するリチウム電池 | |
| CN109074961B (zh) | 用于储能装置的电极以及用于制造干储能装置电极膜的方法 | |
| US10923707B2 (en) | Dry process method for producing electrodes for electrochemical devices and electrodes for electrochemical devices | |
| KR100647966B1 (ko) | 전자부품용 세퍼레이터 및 그 제조방법 | |
| JP5163439B2 (ja) | 繊維含有高分子膜及びその製造方法、並びに、電気化学デバイス及びその製造方法 | |
| JP3482443B2 (ja) | 非水電解質二次電池用電極及びその製造方法 | |
| CN1331259C (zh) | 生产电化学元件用电极片的方法 | |
| CN106328992A (zh) | 一种锂离子电池和该锂离子电池的制备方法 | |
| WO2000013252A1 (fr) | Procede de production d'un element electrolytique en gel non aqueux | |
| US9214661B2 (en) | Electrode manufacturing method | |
| CN110858660B (zh) | 锂离子电池及其制备方法和电动车辆 | |
| KR20110053256A (ko) | 애노드 및 애노드 제조 방법 | |
| CN100492749C (zh) | 生产电化学元件用隔膜/电极组件的方法 | |
| CN110402506A (zh) | 锂离子二次电池 | |
| JP6969518B2 (ja) | 固体電池用電極の製造方法 | |
| CN1424784A (zh) | 制造含有液体有机电解质的原电池的方法 | |
| US6737196B2 (en) | Method of making a lithium polymer battery and battery made by the method | |
| KR102013173B1 (ko) | 울트라커패시터 전극용 조성물, 이를 이용한 울트라커패시터 전극의 제조방법 및 상기 제조방법을 이용하여 제조된 울트라커패시터 | |
| JP2007087680A (ja) | 電子部品用電極−高分子電解質膜複合体およびその製造方法 | |
| JP4691314B2 (ja) | 電子部品用セパレータの製造方法 | |
| KR102188237B1 (ko) | 전해액 함침성이 우수한 전극을 제조할 수 있는 슈퍼커패시터 전극용 조성물, 이를 이용한 슈퍼커패시터 전극의 제조방법 및 상기 제조방법을 이용하여 제조된 슈퍼커패시터 | |
| KR20170027433A (ko) | 절연층과 상이한 방법으로 형성된 접착층을 포함하는 전극-분리막 단위체 및 이의 제조방법 | |
| US20240039116A1 (en) | Method of Printing and Articles | |
| JPH11144708A (ja) | 電気化学素子用電極構造 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: VALDAS MICRO-BATTERY CO., LTD. Free format text: FORMER NAME: MICRO-BATTERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Hannover Patentee after: Verta Microbattery GmbH Address before: Hannover, Federal Republic of Germany Patentee before: Microcell GmbH |
|
| ASS | Succession or assignment of patent right |
Owner name: VOLKSWAGEN VARTA MICROBATTERY FORSCHUNGSGESSELLSCH Effective date: 20120116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120116 Address after: Hannover Co-patentee after: Varta Microbattery GmbH Patentee after: Verta Microbattery GmbH Address before: Hannover Patentee before: Verta Microbattery GmbH |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: German El Wongan Co-patentee after: Varta Microbattery GmbH Patentee after: Verta Microbattery GmbH Address before: Hannover Co-patentee before: Varta Microbattery GmbH Patentee before: Verta Microbattery GmbH |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: German El Wongan Patentee after: Verta Microbattery GmbH Patentee after: Volkswagen Varta Microbattery Forschungsgesellschaft mbH & Co. KG Address before: German El Wongan Patentee before: Verta Microbattery GmbH Patentee before: Varta Microbattery GmbH |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190515 Address after: German El Wongan Co-patentee after: Volkswagen Power Plant Co., Ltd. Patentee after: Verta Microbattery GmbH Address before: German El Wongan Co-patentee before: Volkswagen Varta Microbattery Forschungsgesellschaft mbH & Co. KG Patentee before: Verta Microbattery GmbH |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20200524 |