CN109686587A - 一种采用锂箔带制造的锂离子负电极及其制备方法 - Google Patents
一种采用锂箔带制造的锂离子负电极及其制备方法 Download PDFInfo
- Publication number
- CN109686587A CN109686587A CN201811630769.6A CN201811630769A CN109686587A CN 109686587 A CN109686587 A CN 109686587A CN 201811630769 A CN201811630769 A CN 201811630769A CN 109686587 A CN109686587 A CN 109686587A
- Authority
- CN
- China
- Prior art keywords
- negative electrode
- lithium
- lithium foil
- foil
- band
- 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.)
- Pending
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 53
- 239000011888 foil Substances 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 22
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000003475 lamination Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 abstract description 21
- 230000005611 electricity Effects 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 4
- 238000000280 densification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000012939 laminating adhesive Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/14—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/50—Electrodes characterised by their material specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
-
- 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
-
- 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
- H01M4/134—Electrodes based on metals, Si or alloys
-
- 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
- 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
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/10—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
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
本发明公开了一种采用锂箔带制造的锂离子负电极及其制备方法,所述锂离子负电极从下到上依次设置有下锂箔带、负电极带、上锂箔带,所述下锂箔带设置有若干条平行的平铺在负电极带的下端面,所述上锂箔带设置有若干条平行的平铺在负电极带的上端面。所述锂离子负电极是一种可用于锂离子电容器的复合锂负电极。本发明的制造工艺采用锂箔带,不需要任何粉末或喷雾的步骤,大大降低了电极制造过程的时间和成本,不需要粘合剂的干燥时间,不需要加热的复合层压辊,便于制造过程的质量控制,可获得了具有高密度、高性能复合锂负电极带卷,适用于锂电容负电极等,可广泛推广于新能源汽车、风力发电、备用电源、电动工具等领域,市场潜力巨大。
Description
技术领域
本发明涉及一种电极的制造,特别是涉及一种采用锂箔带制造的锂离子负电极及其制备方法
技术背景
锂离子电极的制造涉及到一个相对柔韧的层附着到一个相对刚性的层,负极电极是用这种方法制造的一类电极。电极广泛用于存储电能的许多设备,包括初级(非充电)电池、二次电池、燃料电池和电容器。由于设计电极时需要考虑各种相互矛盾的性能标准,许多电极使用两种甚至更多种材料构建。一种常用的复合电极应用实例是双电层电容器结构,也称为电化学电容器或超级电容器。双层电容器采用作为能量存储元件的电极,它被浸入电解质溶液(电解质)中。通常,浸渍电解质的多孔隔板确保电极彼此不接触。在固体电极和电解质之间的每个界面上形成一层电荷。双层电容器的这些层具有不同描述。与传统电容器相比,双层电容器的电容量与体积和重量有关。造成这种体积和重量效率的原因主要有两个。首先,电荷分离层的宽度很小,按纳米量级排列。第二,电极可以由多孔材料制成,每单位体积有非常大的有效面积,即非常大的归一化有效面积。由于电容量与电极面积成正比,与电荷分离层的宽度成反比,窄电荷分离层和大表面积的综合效应导致其电容量比传统电容器电容量高很多。高电容量使双层电容器能够接收、储存和释放大量的电能。电容器的另一个重要性能参数是它的内阻,也称为等效串联电阻(ESR)。电容器的频率响应取决于电容器的特征时间常数,而电容器的特性时间常数是电容和内阻的乘积,或RC。换言之,内部电阻限制电容器的充放电率,因为电阻限制了流入或流出电容器的电流。在许多应用中,最大化充放电速率是很重要的。例如,在混合动力汽车应用中,作为汽车发动机能量储存元件的电容器必须能够在加速过程中提供高瞬时功率,并接收再生制动所产生的功率。高内阻可在充放电周期内产生热量。热引起机械应力,加速各种化学反应,从而加速电容器老化。此外,转换成热能的能量也会丢失,从而降低电容器的效率。因此,降低电容器内阻是可取的。用于构成电极的活性材料,例如活性炭,通常具有相当有限的比电导。因此,可以要求大的接触面积以将电极与其端子之间的接触电阻降到最小。活性材料也可能过于脆或不适合直接连接到端子。此外,该材料可能具有相对较低的抗拉强度,在某些应用中需要机械支撑。由于这些原因,电极通常包含电流收集器。电流收集器通常是一层导电材料,在该电极上沉积活性电极材料。铝箔通常用作电极的电流收集材料。在一种电极制造过程中,制备溶剂基电极膜,然后用湿溶剂粘合剂或粘合剂层把它贴到薄铝箔上。为提高电极活性材料薄膜与集流体之间的界面粘结质量,薄膜与集流器的结合是采用压力复膜机完成的。例如,碾压辊或夹送辊。压力复膜增加了薄膜与集电器之间的结合力,降低了等效串联电阻。在溶剂基电极膜、湿粘合剂和集流体经层压之复合,随后被干燥处理以除去任何液体溶剂、润滑剂或杂质。正如已经提到的,双层电容器的高电容在很大程度上是由于电极层较高的有效比面积引起的。活性电极层的孔隙率对提高有效表面积起着重要作用。一般情况下,当活性电极膜压实致密时小尺度范围的孔隙度是不变的。例如,通过碾压辊或高压夹送辊处理。由于压实作用在保持孔隙表面相对不变的同时降低了膜的体积,使有效比表面积增大。此外,压实往往会降低等效串联电阻,也可能改善薄膜的结构完整性。由于这些原因,目前的溶剂型活性电极膜在粘贴到电流收集器之前通常是经压实的。典型的活性电极膜的材料是可压缩的和可延展的。当电极膜经辊子单独地碾压,或电极膜与湿粘合剂层一起碾压,这不但会使通过施压方向压实,而且也会变形、伸长和平面横向宽展。这会有问题的,有两个原因。首先,致密化减少,可能需要多次压实/致密的步骤。第二,电极膜可能需要修剪,因为延展,即伸长和宽展。例如,当电极膜扩散到集电极表面时,或者电极膜扩散到需要连接其它组件的集电极的区域,例如端子或其它电极时,就需要进行微调。额外的压实和修整步骤增加了加工成本和时间,并且最好减少或完全避免。这些问题不一定局限于电极的制备,也与其它可压缩材料的压实和复合过程相关。
发明概述
本电极制造过程的主要优点是使用纯锂箔带。
本发明的目的针对现有技术中的缺陷,为此提供一种采用锂箔带制造的锂离子负电极及其制备方法,该锂离子负电极能解决目前电极制造过程的时间长和成本高等缺陷。
为实现上述目的,本发明的技术方案是:一种采用锂箔带制造的锂离子负电极,其特征在于,所述锂离子负电极从下到上依次设置有下锂箔带、负电极带、上锂箔带,所述下锂箔带设置有若干条平行的平铺在负电极带的下端面,所述上锂箔带设置有若干条平行的平铺在负电极带的上端面。
3、进一步地,所述上锂箔带的厚度为5-150μm,所述下锂箔带的宽度为1-50mm,所述上下锂箔带之间的间隙在10-300μm的公差范围。
进一步地,一种卷到卷工艺过程中采用锂箔带制造的锂离子负电的制备方法,包括以下步骤:
1)将下锂箔带经过第一进料辊送入到第一张力辊区域,然后进入到层压对辊中;
2)将负电极带经过第二进料辊送入到第二张力辊区域,然后进入到层压对辊中;
3)将上锂箔带经过第三进料辊送入到若干个第三张力辊区域,然后进入到层压对辊中;
4)完成步骤1)、2)、3),即三者的带材头部都穿过层压对辊后,形成复合负电极带,并通过第四张力辊区域,进入到收卷筒中收卷,即可得到成品。
进一步地,所述制造过程中必须在温度和湿度控制的洁净干燥室进行。
有益效果:本锂离子负电极制造过程的优点是不需要粘合剂的干燥时间,不需要加热的复合层压辊,大大降低了电极制造过程的时间和成本,制成的负极电极在性能方面显著提高;另一个优点是密度最大化,因为锂箔是纯元素金属,其密度最高,且制造过程的质量控制大大简化,涉及到辊子的张力控制,以及检测和消除不符合制造标准部分的电极,同时锂箔的使用不需要任何粉末或喷雾的步骤,粉末或喷雾增加了制造电极时间和费用,本电极制造过程没有安全问题。
附图说明
图1为本发明的结构示意图。
具体实施方式
一种采用锂箔带制造的锂离子负电极是基于卷到卷工艺过程中进行加工的,所述锂离子负电极从下到上依次设置有下锂箔带、负电极带、上锂箔带,所述下锂箔带设置有若干条平行的平铺在负电极带的下端面,所述上锂箔带设置有若干条平行的平铺在负电极带的上端面。
在一个实施例中,上锂箔带的优选厚度为20-50μm,下锂箔带的宽度为1-50mm,上下锂箔带之间的间隙在10-300μm的公差范围。
一种采用锂箔带制造的锂离子负电的制备方法,包括以下步骤:
1)将下锂箔带经过第一进料辊送入到第一张力辊区域,然后进入到层压对辊中;
2)将负电极带经过第二进料辊送入到第二张力辊区域,然后进入到层压对辊中;
3)将上锂箔带经过第三进料辊送入到若干个第三张力辊区域,然后进入到层压对辊中;
4)完成步骤1)、2)、3),即三者的带材头部都穿过层压对辊后,形成复合负电极带,并通过第四张力辊区域,进入到收卷筒中收卷,即可得到成品。
在一个实施例中,为了保证整个过程的顺利进行,制造过程中必须在温度和湿度控制的洁净干燥室进行。
本锂离子负电极制造过程的优点是不需要粘合剂的干燥时间,不需要加热的复合层压辊,大大降低了电极制造过程的时间和成本,制成的负极电极在性能方面显著提高;另一个优点是密度最大化,因为锂箔是纯元素金属,其密度最高,且制造过程的质量控制大大简化,涉及到辊子的张力控制,以及检测和消除不符合制造标准部分的电极,同时锂箔的使用不需要任何粉末或喷雾的步骤,粉末或喷雾增加了制造电极时间和费用,本电极制造过程没有安全问题。
上面所述的实施方案仅仅是对本发明的优选实施方案进行描述,并非对本发明的构思和范围进行限定。在不脱离本发明设计构思的前提下,本领域技术人员对本发明的技术方案做出的各种变型和改进,均应归入到本发明的保护范围。
Claims (4)
1.一种采用锂箔带制造的锂离子负电极,其特征在于,所述锂离子负电极从下到上依次设置有下锂箔带、负电极带、上锂箔带,所述下锂箔带设置有若干条平行的平铺在负电极带的下端面,所述上锂箔带设置有若干条平行的平铺在负电极带的上端面。
2.如权利要求1所述的采用锂箔带制造的锂离子负电极,其特征在于,所述上锂箔带的厚度为5-150μm,所述下锂箔带的宽度为1-50mm,所述上下锂箔带之间的间隙在10-300μm的公差范围。
3.一种采用锂箔带制造的锂离子负电极的制备方法,其特征在于,包括以下步骤:
1)将下锂箔带经过第一进料辊送入到第一张力辊区域,然后进入到层压对辊中;
2)将负电极带经过第二进料辊送入到第二张力辊区域,然后进入到层压对辊中;
3)将上锂箔带经过第三进料辊送入到若干个第三张力辊区域,然后进入到层压对辊中;
4)完成步骤1)、2)、3),即三者的带材头部都穿过层压对辊后,形成复合负电极带,并通过第四张力辊区域,进入到收卷筒中收卷,即可得到成品。
4.如权利要求3所述的卷到卷工艺过程中采用锂箔带制造的锂离子负电极的方法,其特征在于,所述制造过程中必须在温度和湿度控制的洁净干燥室进行。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811630769.6A CN109686587A (zh) | 2018-12-29 | 2018-12-29 | 一种采用锂箔带制造的锂离子负电极及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811630769.6A CN109686587A (zh) | 2018-12-29 | 2018-12-29 | 一种采用锂箔带制造的锂离子负电极及其制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109686587A true CN109686587A (zh) | 2019-04-26 |
Family
ID=66190189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811630769.6A Pending CN109686587A (zh) | 2018-12-29 | 2018-12-29 | 一种采用锂箔带制造的锂离子负电极及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109686587A (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106229158A (zh) * | 2016-07-27 | 2016-12-14 | 中航锂电(洛阳)有限公司 | 一种复合负极片的制备方法及复合负极片、锂离子电容器 |
US20170263388A1 (en) * | 2016-03-14 | 2017-09-14 | General Capacitor, Llc | Process for lithium loaded electrode manufacturing for lithium-ion capacitors |
CN107910499A (zh) * | 2017-12-05 | 2018-04-13 | 中航锂电技术研究院有限公司 | 锂电池负极预锂方法以及预锂装置 |
-
2018
- 2018-12-29 CN CN201811630769.6A patent/CN109686587A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170263388A1 (en) * | 2016-03-14 | 2017-09-14 | General Capacitor, Llc | Process for lithium loaded electrode manufacturing for lithium-ion capacitors |
CN106229158A (zh) * | 2016-07-27 | 2016-12-14 | 中航锂电(洛阳)有限公司 | 一种复合负极片的制备方法及复合负极片、锂离子电容器 |
CN107910499A (zh) * | 2017-12-05 | 2018-04-13 | 中航锂电技术研究院有限公司 | 锂电池负极预锂方法以及预锂装置 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1860568B (zh) | 有机电解质电容器 | |
CN100418169C (zh) | 电化学组件及其制造方法 | |
TWI466365B (zh) | An insulating layer with heat-resistant insulation | |
CN111755700A (zh) | 复合集流体、应用该复合集流体的电极极片及电芯 | |
CN101341624A (zh) | 电池或电容器用锂金属箔 | |
CN104752752B (zh) | 锂离子电池裸电芯及含有该裸电芯的锂离子电池的制备方法 | |
US20170263388A1 (en) | Process for lithium loaded electrode manufacturing for lithium-ion capacitors | |
CN113611916A (zh) | 叠片式电芯及其制备方法 | |
CN115172660A (zh) | 金属箔及制备方法与锂电池负极和锂电池 | |
CN208336372U (zh) | 电极极片、电极组件及二次电池 | |
JP2000268813A (ja) | 電池及びキャパシタの電極構造、並びに電極の製造方法 | |
JP2013042053A (ja) | エネルギーデバイス電極構造およびその製造方法、およびエネルギーデバイス | |
KR20180113417A (ko) | 리튬 이차전지의 제조방법 | |
CN112510215B (zh) | 电极极片、电极极片的制作方法及电化学储能器件 | |
KR101098240B1 (ko) | 슈퍼커패시터 셀의 제조방법 | |
JP2013182735A (ja) | 多層の膜電極接合体の製造方法及びリチウムイオン二次電池 | |
JP2009199962A (ja) | セパレータ合体型の電極およびその製造方法、並びにそれを用いた蓄電装置 | |
JP2023523064A (ja) | バイポーラ集電体、電気化学装置および電子装置 | |
CN109686587A (zh) | 一种采用锂箔带制造的锂离子负电极及其制备方法 | |
JPH1041199A (ja) | 大容量電気二重層コンデンサの製造方法 | |
KR102188237B1 (ko) | 전해액 함침성이 우수한 전극을 제조할 수 있는 슈퍼커패시터 전극용 조성물, 이를 이용한 슈퍼커패시터 전극의 제조방법 및 상기 제조방법을 이용하여 제조된 슈퍼커패시터 | |
JP5949485B2 (ja) | 電解液を有する蓄電装置及び二次電池並びに電解液を有する蓄電装置の電極の製造方法 | |
JP2018041921A (ja) | 非水系リチウム蓄電素子 | |
CN106784818A (zh) | 一种高功率软包装锂二硫化铁电池的制备方法 | |
CN202816686U (zh) | 一种卷绕式超级电容器的生产流水线装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190426 |