CN2718792Y - 锌负极蓄电池的电极隔离物 - Google Patents
锌负极蓄电池的电极隔离物 Download PDFInfo
- Publication number
- CN2718792Y CN2718792Y CNU2004200723248U CN200420072324U CN2718792Y CN 2718792 Y CN2718792 Y CN 2718792Y CN U2004200723248 U CNU2004200723248 U CN U2004200723248U CN 200420072324 U CN200420072324 U CN 200420072324U CN 2718792 Y CN2718792 Y CN 2718792Y
- Authority
- CN
- China
- Prior art keywords
- zinc
- liquid storage
- electrode
- film
- wettable
- 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 - Lifetime
Links
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000011701 zinc Substances 0.000 title claims abstract description 48
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 48
- 238000003860 storage Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000012528 membrane Substances 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 210000001787 dendrite Anatomy 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- -1 polypropylene Polymers 0.000 claims description 12
- 229920002978 Vinylon Polymers 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000002736 nonionic surfactant Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 239000012982 microporous membrane Substances 0.000 abstract description 12
- 238000012545 processing Methods 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000010287 polarization Effects 0.000 description 10
- 229920000098 polyolefin Polymers 0.000 description 8
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 210000004027 cell Anatomy 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052716 thallium Inorganic materials 0.000 description 2
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920013683 Celanese Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910020220 Pb—Sn Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- IUYLTEAJCNAMJK-UHFFFAOYSA-N cobalt(2+);oxygen(2-) Chemical compound [O-2].[Co+2] IUYLTEAJCNAMJK-UHFFFAOYSA-N 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(II) oxide Inorganic materials [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- IGUXCTSQIGAGSV-UHFFFAOYSA-K indium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[In+3] IGUXCTSQIGAGSV-UHFFFAOYSA-K 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- WJZHMLNIAZSFDO-UHFFFAOYSA-N manganese zinc Chemical compound [Mn].[Zn] WJZHMLNIAZSFDO-UHFFFAOYSA-N 0.000 description 1
- 229910000474 mercury oxide Inorganic materials 0.000 description 1
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- WKMKTIVRRLOHAJ-UHFFFAOYSA-N oxygen(2-);thallium(1+) Chemical compound [O-2].[Tl+].[Tl+] WKMKTIVRRLOHAJ-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 229910003438 thallium oxide Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 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
- 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
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
-
- 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
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
-
- 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
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- H01M50/417—Polyolefins
-
- 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
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- H01M50/423—Polyamide resins
-
- 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
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
- H01M50/457—Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
-
- 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
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
-
- 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
- H01M10/24—Alkaline accumulators
-
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/42—Alloys based on zinc
-
- 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)
- Cell Separators (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
一种锌负极蓄电池的电极隔离物，它属于蓄电池制备技术领域，其特征在于它是包括了一层贮液膜和两层阻挡锌枝晶的可湿性微孔膜的复合隔膜，所述的两层阻挡锌枝晶的可湿性微孔膜叠加后置于所述的贮液膜上；其中一层可湿性微孔膜由两个独立部分构成，两部分的宽度加起来小于贮液膜的宽度；由两个独立部分构成的可湿性微孔膜两部分的宽度总和为贮液膜宽度的20％～80％。将本实用新型应用在现有的以锌为负极的蓄电池上可改善由于现有技术中因锌电极形变而造成的电池容量降低、循环寿命缩短的弊端，延长了以锌为负极的蓄电池的使用寿命。且本实用新型结构简单，加工容易，具有较低的成本。
Description
技术领域：
本实用新型涉及一种锌负极蓄电池的电极隔离物，它属于蓄电池制备技术领域，特别是以锌为负极的蓄电池所使用的隔离物的制备技术领域。
背景技术：
以锌(Zn)为负极的蓄电池包括锌镍电池、锌银电池、锌空气电池和锌锰电池等。这些以锌为负极的可充电电池的共同缺点是循环寿命较短。原因是锌的放电产物在电池的碱性电解质溶液中有较大的溶解度。在电池的充放过程中，锌反复地溶解入电解质溶液，又重新沉积在电极上。但是锌的沉积并不一定发生在锌溶解下来的位置上，这导致了锌在电极上的重新分配，表现为电极四周的活性物质向电极中央聚集，术语叫做“锌电极形变”。锌电极形变使电极的真实表面积在循环过程中逐步减小，造成电池容量降低、循环寿命缩短。因此，为抑制锌电极形变，一个研究方向是从抑制锌放电产物的迁移或从降低锌放电产物在电解质溶液中的溶解度着手。另一个研究方向是从改变电流密度在电极上的不均匀分布着手。当电流流过电极时，电极电位偏离其平衡电位数值的现象，叫做电极的极化。随着电极上电流密度的增大，电极电位偏离其平衡电位的数值也增大，也即电极的极化作用增大。电极上的极化值，从效果上来看，它相当于在电极表面附加了一个等效电阻，极化值越大，相当于附加的等效电阻越大；极化值越小，相当于附加的等效电阻越小。
当我们采取措施使锌电极上存在较大极化度时，因为在锌电极表面各处的初始电流分布不同，所以在锌电极上各处的极化值和附加的等效电阻也各不相同。电流密度大的区域，极化值和等效电阻也大；电流密度小的区域，极化值和等效电阻也小，这样就使初始电流密度在阴极上各处发生重新分布，使得整个锌电极表面上各处的实际电流密度趋于均匀。这样，解决电极形变的途径从改善电流密度的平均分布归结为调整锌电极上不同区域的等效电阻。而等效电阻的调整，必须有较大的极化度。在研究中发现铅、镉、铊、铟的氧化物和氢氧化物有效地减小了形变，并将其影响原因归结为基底效应。氧化铅、氢氧化铟和***通过提高极化度，改善了电流分布，从而减小了形变：而***由于降低了极化度，增加了电极形变速率。但是，铅镉铊会对环境造成严重污染，而铟，则是一种贵重的金属。所以，无论是从环保还是节约成本的角度出发，都必须寻找另一种改善电流密度分布的方法。理论上，可以提出这么一个解决办法：人为地增加与电极接触的电极隔离物的边缘的层数和厚度，使隔着隔离物的正负电极的边缘部分之间的电阻更大些，从而使电极边缘的电流密度降低，表现为整个电极的电流密度变得均匀。在现有技术中，用这种方法制造锌镍电池，在用微孔膜包裹正极时，在正极的边缘多包一层。以达到调整电流密度分布的目的。但是，这种方法只适用于大中型的方型电池。而不适于用卷绕方式制造的小型圆柱型电池。而且这种包裹方式，对于厚度仅为0.02~0.04mm的微孔膜来说，实际操作相当烦琐，效率很低。
发明内容：
本实用新型的目的是提供一种可以使得电流密度在电极上分布均匀，结构和制作简单，加工成本较低，有效增加以锌为负极的蓄电池的使用寿命的锌负极蓄电池的电极隔离物。
本实用新型的目的是这样实现的：
一种锌负极蓄电池的电极隔离物，它是包括了一层贮液膜和两层阻挡锌枝晶的可湿性微孔膜的复合隔膜，所述的两层阻挡锌枝晶的可湿性微孔膜叠加后置于所述的贮液膜上。
所述的其中一层可湿性微孔膜由两个独立部分构成，两部分的宽度加起来小于贮液膜的宽度。
所述的由两个独立部分构成的可湿性微孔膜两部分的宽度总和为贮液膜宽度的20％~80％，
所述的由两个独立部分构成的可湿性微孔膜两部分的宽度总和可为贮液膜宽度的40~60％。
所述的由一层贮液膜和两层可湿性微孔膜构成的复合隔膜，其中的贮液膜和可湿性微孔膜之间是通过高周波焊接或用粘接剂粘接构成。
所述的贮液膜层是改性聚丙烯毡或维尼纶毡或尼龙毡。
所述的可湿性微孔膜是经非离子表面活性剂处理过的聚乙烯或聚丙烯微孔膜。
所述的可湿性微孔膜是聚乙烯辐射接枝膜。
本实用新型有益效果在于：将本实用新型应用在现有的以锌为负极的蓄电池上，由于本实用新型的边缘的电阻较中部的电阻大，保证了蓄电池的电流密度在电极上分布均匀，从而改善了由于锌电极形变而造成的电池容量降低、循环寿命缩短的弊端，大大的延长了以锌为负极的蓄电池的使用寿命。且本实用新型结构简单，加工容易，具有较低的成本，适合在以锌为负极的蓄电池的生产领域推广使用。
附图说明：
附图1为本实用新型的结构示意图
具体实施方式：
下面以附图1为本实用新型的实施例，对本实用新型进行进一步的说明：
实施例1：如附图1中所示：
本实用新型是由一层贮液膜a和两层阻挡锌枝晶的可湿性微孔膜b、c1、c2组成的复合隔膜。复合隔膜是由其中的贮液膜和微孔膜是通过高周波焊接在一起或用粘接剂粘接在一起组成的。
其中一层可湿性微孔膜b的长度和宽度与贮液膜a的长度和宽度相同，而另一层可湿性微孔膜分为两部分，分别是c1和c2。c1和c2的宽度加起来小于贮液膜a的宽度。而长度则与贮液膜a的长度相同。这样，组合好的隔离物表现为边缘部分是三层，即一层贮液膜与两层可湿性微孔膜。在复合隔膜的一侧可观察到a，b和c1，在复合隔膜的另一侧可观察到a，b和c2。而隔离物的中部则为两层，即一层贮液膜与一层可湿性微孔膜，在这里，只能观察到a和b。
所述的一层贮液膜a可以是改性聚丙烯毡、维尼纶毡或尼龙毡。所述的两层可湿性微孔膜b、c1、c2，可以是美国Hoechst Celanese Corporation生产的一系列经非离子表面活性剂处理过的聚乙烯或聚丙烯微孔膜中的任何一种，特别是指Celgard 3400系列隔膜，如Celgard 3400或Celgard 3406。也可以是一系列上海原子核研究所生产的聚乙烯辐射接枝膜中的任何种，如CN-1000、CN-2000、CN-2020等。其中的一层微孔膜的宽度与贮液膜的宽度相同，而另一层微孔膜分为两部分，两部分的宽度加起来小于贮液膜的宽度。是贮液膜的20％～80％，更佳的范围是40～60％。
具体加工程序如下：
根据蓄电池所需要的规格，将一片长210mm，宽44mm，厚0.15mm的维尼纶毡作为贮液膜a，与一片长210mm，宽44mm，厚0.025mm的可湿性聚烯烃微孔膜b及两片长210mm，宽11mm，厚0.025mm的可湿性聚烯烃微孔膜c1、c2用高周波焊接机焊接成一个本实用新型所述的复合隔膜。重复此过程若干次得到若干个本实用新型所述的复合隔膜。
下面是完整的以锌为负极的蓄电池的加工程序以及本实用新型在锌为负极的蓄电池的应用示例：
取无汞锌粉10克、氧化锌60克、氢氧化钙9克、导电碳黑3克用混合设备混合均匀。将上述混合物与20克3％的PVA溶液、25克2％的HPMC溶液及5克去离子水搅拌成粘稠的浆状物。再将上述浆状物通过拉浆机附于镀有Pb-Sn合金镀层的厚0.07mm，宽42mm的冲孔铜带上。经过烘干、辊压、裁片并焊接引流带制得长95mm、宽42mm的负极片若干。
将92克球型氢氧化镍、7克氧化亚钴、11克导电碳黑和3克PTFE、0.2克CMC以及52克去离子水搅拌成浆状物并涂到焊有引流带的发泡镍上，经过烘干、辊压、裁片制得长65mm宽40mm的正极片若干。
将正极和负极隔着本实用新型所述的复合隔膜用卷绕机卷绕多圈形成极芯并收存于AA型电池钢壳中。将制得的半成品经点焊、冲槽、注入含有25％的KOH和1.5％的LiOH的电解液并封口制成本发明所述的AA型圆柱锌镍电池。将电池化成后以210mA充电4小时，210mA放电至1.2V进行循环测试，当电池放电容量降至初始放电容量的70％时终止测试，结果见表1。
实施例2：
将一片长210mm，宽44mm，厚0.15mm的维尼纶毡作为贮液膜a与一片长210mm，宽44mm，厚0.025mm的可湿性聚烯烃微孔膜b及两片长210mm，宽7.5mm，厚0.025mm的可湿性聚烯烃微孔膜c1、c2用高周波焊接机焊接成一个本实用新型所述的复合隔膜。重复此过程若干次得到若干个本实用新型所述的复合隔膜。
按实施例1所述方法制备负极片若干。
按实施例1所述方法制备正极片若干。
将正极和负极隔着本实用新型所述的复合隔膜用卷绕机卷绕多圈形成极芯并收存于AA型电池钢壳中。将制得的半成品经点焊、冲槽、注入含有25％的KOH和1.5％的LiOH的电解液并封口制成本发明所述的AA型圆柱锌镍电池。将电池化成后以210mA充电4小时，210mA放电至1.2V进行循环测试，当电池放电容量降至初始放电容量的70％时终止测试，结果见表1。
实施例3：
按实施例1所述方法制备负极片若干。
按实施例1所述方法制备正极片若干。
将一片长210mm，宽44mm，厚0.15mm的维尼纶毡作为贮液膜a与一片长210mm，宽44mm，厚0.025mm的可湿性聚烯烃微孔膜b及两片长210mm，宽17mm，厚0.025mm的可湿性聚烯烃微孔膜用c1、c2高周波焊接机焊接成一个本实用新型所述的复合隔膜。重复此过程若干次得到若干个本实用新型所述的复合隔膜。
将正极和负极隔着本实用新型所述的复合隔膜用卷绕机卷绕多圈形成极芯并收存于AA型电池钢壳中。将制得的半成品经点焊、冲槽、注入含有25％的KOH和1.5％的LiOH的电解液并封口制成本发明所述的AA型圆柱锌镍电池。将电池化成后以210mA充电4小时，210mA放电至1.2V进行循环测试，当电池放电容量降至初始放电容量的70％时终止测试，结果见表1。
比较例1
负极和正极的制备同实施例1。
电池的装配、化成和测试方法同实施例1。
所不同的是电极的隔离物复合隔膜只包括一片长210mm，宽44mm，厚0.15mm的维尼纶毡作为贮液膜与一片长210mm，宽44mm，厚0.025mm的可湿性聚烯烃微孔膜。测试结果见表2。
比较例2
负极和正极的制备同实施例1。
电池的装配、化成和测试方法同实施例1。结果见表2
所不同的是电极的隔离物复合隔膜包括一片长210mm，宽44mm，厚0.15mm的维尼纶毡作为贮液膜a与两片长210mm，宽44mm，厚0.025mm的可湿性聚烯烃微孔膜。
测试结果见表2。
表1
| 实施例 | 贮液膜宽度(mm) | 第一层可湿性微孔膜宽度(mm) | 第二层可湿性微孔膜总宽度(mm) | 电池循环寿命(次) |
| 实施例1 | 44 | 44 | 22 | ≥500 |
| 实施例2 | 44 | 44 | 15 | 440 |
| 实施例3 | 44 | 44 | 34 | 380 |
表2
| 比较例 | 贮液膜宽度(mm) | 第一层可湿性微孔膜宽度(mm) | 第二层可湿性微孔膜总宽度(mm) | 电池循环寿命(次) |
| 比较例1 | 44 | 44 | 350 | |
| 比较例2 | 44 | 44 | 44 | 300 |
表中的测试结果表明，使用了本实用新型技术的蓄电池的循环使用寿命大大的高于现有技术中的蓄电池。
Claims (8)
1、一种锌负极蓄电池的电极隔离物，其特征在于，它包括一层贮液膜(a)和两层阻挡锌枝晶的可湿性微孔膜(b、c1、c2)的复合隔膜，所述的两层阻挡锌枝晶的可湿性微孔膜(b、c1、c2)叠加后置于所述的贮液膜(a)上。
2、如权利要求1中所述的锌负极蓄电池的电极隔离物，其特征在于，所述的其中一层可湿性微孔膜由两个独立部分(c1、c2)构成，两部分的宽度加起来小于贮液膜的宽度。
3、如权利要求2中所述的锌负极蓄电池的电极隔离物，其特征在于，所述的由两个独立部分(c1、c2)构成的可湿性微孔膜两部分的宽度总和为贮液膜宽度的20％~80％。
4、如权利要求2中所述的锌负极蓄电池的电极隔离物，其特征在于所述的由两个独立部分(c1、c2)构成的可湿性微孔膜两部分的宽度总和可为贮液膜宽度的40~60％。
5、如权利要求1至4中任一条所述的锌负极蓄电池的电极隔离物，其特征在于所述的由一层贮液膜(a)和两层可湿性微孔膜(b、c1、c2)构成的复合隔膜，其中的贮液膜和可湿性微孔膜之间是通过高周波焊接或用粘接剂粘接构成。
6、如权利要求1至4中任一条所述的锌负极蓄电池的电极隔离物，其特征在于所述的贮液膜层是改性聚丙烯毡或维尼纶毡或尼龙毡。
7、如权利要求1至4中任一条所述的锌负极蓄电池的电极隔离物，其特征在于所述的可湿性微孔膜是经非离子表面活性剂处理过的聚乙烯或聚丙烯微孔膜。
8、如权利要求1至4中任一条所述的锌负极蓄电池的电极隔离物，其特征在于所述的可湿性微孔膜是聚乙烯辐射接枝膜。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200723248U CN2718792Y (zh) | 2004-08-02 | 2004-08-02 | 锌负极蓄电池的电极隔离物 |
| US11/187,540 US7914921B2 (en) | 2004-08-02 | 2005-07-22 | Enhanced separators for zinc negative electrodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200723248U CN2718792Y (zh) | 2004-08-02 | 2004-08-02 | 锌负极蓄电池的电极隔离物 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2718792Y true CN2718792Y (zh) | 2005-08-17 |
Family
ID=34893773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200723248U Expired - Lifetime CN2718792Y (zh) | 2004-08-02 | 2004-08-02 | 锌负极蓄电池的电极隔离物 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US7914921B2 (zh) |
| CN (1) | CN2718792Y (zh) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438138C (zh) * | 2005-10-31 | 2008-11-26 | 比亚迪股份有限公司 | 锌负极蓄电池的电极隔离物以及含有该电极隔离物的电池 |
| CN101826638B (zh) * | 2009-03-05 | 2013-11-06 | 深圳市倍特力电池有限公司 | 一种圆柱镍锌电池及其制作工艺 |
| CN105098128A (zh) * | 2015-09-18 | 2015-11-25 | 河南科高辐射化工科技有限公司 | 一种用于二次镍锌电池的复合隔膜及其制备方法 |
| CN106129305A (zh) * | 2016-08-05 | 2016-11-16 | 大连理工大学 | 一种用于镍锌电池的微孔膜及其制备方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI121611B (fi) * | 2007-02-06 | 2011-01-31 | Enfucell Oy | Ohutparisto ja menetelmä ohutpariston valmistamiseksi |
| DE102009023126A1 (de) * | 2009-05-20 | 2010-11-25 | Varta Microbattery Gmbh | Galvanisches Element mit quecksilberfreier negativer Elektrode |
| JP6273688B2 (ja) * | 2012-04-18 | 2018-02-07 | 株式会社Ｇｓユアサ | 蓄電素子、捲回装置、および捲回方法 |
| EP2722913B1 (de) * | 2012-10-17 | 2018-11-28 | VARTA Microbattery GmbH | Anodenmischung, Knopfzelle mit einer Metallpartikel umfassenden Anode und deren Herstellung |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1823031A (en) * | 1929-01-07 | 1931-09-15 | John H Dalen | Cutting blade |
| US3537908A (en) * | 1967-04-28 | 1970-11-03 | Accumulateurs Fixes | Composite separator means for electro-chemical power sources and power sources embodying them |
| US3539396A (en) * | 1968-11-05 | 1970-11-10 | Us Army | Rechargeable alkaline zinc system |
| US3970472A (en) * | 1975-07-08 | 1976-07-20 | Mcgraw-Edison Company | Rechargeable battery with zinc negative and dendrite barrier |
| US4000005A (en) * | 1976-01-08 | 1976-12-28 | General Motors Corporation | Method for making a nickel positive electrode for an alkaline battery |
| US4218521A (en) * | 1978-12-08 | 1980-08-19 | Electric Power Research Institute, Inc. | Metal-halogen battery having reduced dendrite growth |
| US6330925B1 (en) * | 1997-01-31 | 2001-12-18 | Ovonic Battery Company, Inc. | Hybrid electric vehicle incorporating an integrated propulsion system |
-
2004
- 2004-08-02 CN CNU2004200723248U patent/CN2718792Y/zh not_active Expired - Lifetime
-
2005
- 2005-07-22 US US11/187,540 patent/US7914921B2/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438138C (zh) * | 2005-10-31 | 2008-11-26 | 比亚迪股份有限公司 | 锌负极蓄电池的电极隔离物以及含有该电极隔离物的电池 |
| CN101826638B (zh) * | 2009-03-05 | 2013-11-06 | 深圳市倍特力电池有限公司 | 一种圆柱镍锌电池及其制作工艺 |
| CN105098128A (zh) * | 2015-09-18 | 2015-11-25 | 河南科高辐射化工科技有限公司 | 一种用于二次镍锌电池的复合隔膜及其制备方法 |
| CN106129305A (zh) * | 2016-08-05 | 2016-11-16 | 大连理工大学 | 一种用于镍锌电池的微孔膜及其制备方法 |
| CN106129305B (zh) * | 2016-08-05 | 2018-11-06 | 大连理工大学 | 一种用于镍锌电池的微孔膜及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US7914921B2 (en) | 2011-03-29 |
| US20060024570A1 (en) | 2006-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100449826C (zh) | 锌负极二次电池和该电池的锌负极及它们的制备方法 | |
| US7153607B2 (en) | Alkaline zinc secondary cell and method for preparation thereof | |
| KR100736511B1 (ko) | 전지캔과 그의 제조방법 및 그를 사용한 전지 | |
| EP2472641A1 (en) | Nickel-zinc battery and manufacturing method thereof | |
| CA2756456A1 (en) | Electrode separator | |
| KR20090109550A (ko) | 금속성 아연-기반의 집전기 | |
| US20130288128A1 (en) | Active material of negative electrode, tilted-grid substrate of negative electrode, negative electrode for nickel-zinc battery, and methods for preparing negative electrode | |
| US7713661B2 (en) | Negative electrodes for zinc nickel secondary batteries and their fabrication methods | |
| US7914921B2 (en) | Enhanced separators for zinc negative electrodes | |
| EP1478037A2 (en) | Secondary battery using non-sintered thin electrode and process for same | |
| CN1331266C (zh) | 一种碱性蓄电池及其制备方法 | |
| CN2798320Y (zh) | 碱性二次电池的电极芯及含有该电极芯的碱性二次电池 | |
| US20100062347A1 (en) | Rechargeable zinc cell with longitudinally-folded separator | |
| JP2021077543A (ja) | 亜鉛二次電池 | |
| EP3493301A1 (en) | Electrode drying method | |
| CN1117408C (zh) | 碱性蓄电池 | |
| JP2555710B2 (ja) | 亜鉛電極 | |
| CN111463502A (zh) | 一种避免锌枝晶短路的结构、制备和含有该结构的电池 | |
| CN101132066B (zh) | 锌负极和包括该负极的二次锌镍电池及它们的制备方法 | |
| EP1763097B1 (fr) | Electrode positive pour accumulateur alcalin | |
| KR100287120B1 (ko) | 함습율및기공의크기가다른세퍼레이터를이용한알카리-아연2차전지 | |
| CN2798322Y (zh) | 碱性二次电池 | |
| US20230317918A1 (en) | Electrically Conductive Substrate for an Electrochemical Device | |
| CN117613363A (zh) | 一种固态电解质膜及其在固态锂硫电池中的应用 | |
| CN113611871A (zh) | 一种锂电池负极片及其制备方法和锂电池 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANAN ROAD,KUIYONG TOWN,LONGGANG DISTRICT, SHENZHE Free format text: FORMER NAME OR ADDRESS: BIYADI INDUSTRIAL PARK, YAN AN ROAD,KUIYONG TOWN,LONGGANG DISTRICT,SHENZHENCITY,GUANGDONG PROVINCE |
|
| CP03 | Change of name, title or address |
Patentee address after: Intellectual Property Department, BYD Road, Yanan Road, Kwai Chung Town, Longgang District, Guangdong, Shenzhen Patentee address before: BYD Industrial Park, Yanan Road, Kwai Chung Town, Longgang District, Shenzhen, Guangdong |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140802 Granted publication date: 20050817 |