JPS63108665A - Manufacture of sealed alkaline storage battery - Google Patents
Manufacture of sealed alkaline storage batteryInfo
- Publication number
- JPS63108665A JPS63108665A JP61251593A JP25159386A JPS63108665A JP S63108665 A JPS63108665 A JP S63108665A JP 61251593 A JP61251593 A JP 61251593A JP 25159386 A JP25159386 A JP 25159386A JP S63108665 A JPS63108665 A JP S63108665A
- Authority
- JP
- Japan
- Prior art keywords
- separator
- electrode plate
- envelope
- positive
- metal container
- 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
- 238000003860 storage Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- 238000004804 winding Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007789 sealing 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
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/76—Containers for holding the active material, e.g. tubes, capsules
-
- 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
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
- H01M50/466—U-shaped, bag-shaped or folded
-
- 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
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は帯状の正極板および負極板との間を隔離するセ
パレータを改良する角形の密閉形アルカリ蓄電池の製造
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a rectangular sealed alkaline storage battery that improves a separator that isolates a strip-shaped positive electrode plate and a negative electrode plate.
従来、密閉形アルカリ蓄電池における極板群は、帯状の
正、負両極板を、それよシも巾、長石ともに大きいセパ
レータを間に介在して、重ね合せることで電極群を形成
していた。この電極群を金属容器内に収納し、絶縁ガス
ケットを用い、金属容器の開口端を内方に折曲して密封
口して密閉形アルカリ蓄電池を製造していた。Conventionally, the electrode group in a sealed alkaline storage battery has been formed by stacking strip-shaped positive and negative electrode plates with a separator, which is larger in both width and feldspar, interposed between them. This electrode group was housed in a metal container, an insulating gasket was used, and the open end of the metal container was bent inward to seal the opening to produce a sealed alkaline storage battery.
従来、この種の密閉形アルカリ電池では、極板群を収納
する金属容器は負極端子を兼ねているので、正極板とは
電気的に絶縁されていなければならない。そのため、正
、負両極板を七パレータを介して重ね合せた極板群の両
側面は、負極板になるように重ねていた。また、端面に
おいては、正、負両電極が露出しているため、端面が接
する金属容器底面を絶縁材で被榎するか、または正極板
の巾を負極板の巾よシ狭くすることで、正極板が直接金
属容器に接触しないようにしなければならなかった。Conventionally, in this type of sealed alkaline battery, the metal container housing the electrode plate group also serves as a negative electrode terminal, so it must be electrically insulated from the positive electrode plate. Therefore, both sides of the electrode plate group in which positive and negative electrode plates were stacked one on top of the other with seven pallets interposed therebetween were stacked to form negative electrode plates. In addition, since both the positive and negative electrodes are exposed on the end surface, the bottom surface of the metal container where the end surface touches is covered with an insulating material, or the width of the positive electrode plate is made narrower than the width of the negative electrode plate. It was necessary to prevent the positive electrode plate from coming into direct contact with the metal container.
しかし、金属容器の必要箇所を絶縁した場合には、その
絶縁部材の厚みの分だけ正、負両極容量が減ることとな
る。また正極板の巾を負極板の巾よシ狭くする場合も、
正極板の容量が減少するので好ましくなかった。However, if the necessary parts of the metal container are insulated, the capacitance between the positive and negative electrodes will be reduced by the thickness of the insulating member. Also, when making the width of the positive electrode plate narrower than the width of the negative electrode plate,
This was not preferable because the capacity of the positive electrode plate decreased.
さらに、正、負両極板を重ね合せる際、極板相互間ある
いは極板とセパレータとの位置ずれによって、極板同士
あるいは極板と他方の極板のリード端子とが接触して、
内部短絡を招くという問題があった。Furthermore, when stacking the positive and negative electrode plates, misalignment between the plates or between the plates and the separator may cause the plates to come into contact with each other or the lead terminals of the other plate.
There was a problem in that it caused an internal short circuit.
本発明は上記欠点を除去し、内部短絡を防止することを
目的とするものである。The present invention aims to eliminate the above drawbacks and prevent internal short circuits.
本発明は帯状の正、負両極板の間を隔離するセパレータ
を封筒状とし、このセパレータ内に挿入した正極板と、
裸の負極板とを重ね合せて極板群を形成するものである
。The present invention has an envelope-shaped separator that isolates the band-shaped positive and negative electrode plates, and a positive electrode plate inserted into the separator.
A bare negative electrode plate is stacked on top of each other to form an electrode plate group.
また封筒状セパレータは、合成繊維紙を螺旋状に巻回し
て長尺の筒状とし、開口端を熱圧着によシ閉塞したのち
、正極板の長さよシ長い寸法で裁断して得られる。The envelope-shaped separator is obtained by spirally winding synthetic fiber paper to form a long tube, closing the open end by thermocompression bonding, and then cutting the tube into a length longer than the length of the positive electrode plate.
密閉形アルカリ蓄電池は、上記極板群を金属容器内に収
納し、絶縁ガスケットを用い、金属容器の開口端を内方
へ折曲して密封口して製造するものである。A sealed alkaline storage battery is manufactured by housing the electrode plate group in a metal container, using an insulating gasket, and bending the open end of the metal container inward to seal the container.
前記のようにセパレータを封筒状とし、その中に正極板
を挿入包被することで内部短絡を防止することができ、
さらに封筒状セパレータは連続的に製造されるので、組
立工数が低減できる。また、電池容器底面に絶縁部材を
敷く必要がなくなシ、その分両極の容量を増すことがで
きる。As mentioned above, internal short circuits can be prevented by forming the separator into an envelope shape and inserting and enclosing the positive electrode plate inside it.
Furthermore, since the envelope-shaped separators are manufactured continuously, the number of assembly steps can be reduced. Furthermore, there is no need to lay an insulating member on the bottom of the battery container, and the capacity of both electrodes can be increased accordingly.
以下、本発明の実施例を図面によυ説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図（イ）において、（資）は筒状セパレータを製造
する際一時的に芯となる回転軸であシ、この回転軸（資
）の表面にそれぞれ帯状をなした第１のセパレータ原紙
８１１．第２のセパレータ原紙８２を順次螺旋状に巻回
し、いわゆるラングストーン巻きを施す。In Figure 1 (a), (capital) is a rotating shaft that temporarily serves as a core when producing a cylindrical separator, and the first separator base paper is formed in a band shape on the surface of this rotating shaft (capital). 811. The second separator base paper 82 is sequentially wound spirally to perform so-called Langstone winding.
第１のセパレータ原紙８１及び第２のセパレータ原紙８
２としては、合成繊維からなる不織布、例えばＰＶＡの
誘導体、ナイロンあるいはポリプロピレン中の１種ある
いは複数種からなるものである。First separator base paper 81 and second separator base paper 8
2 is a nonwoven fabric made of synthetic fibers, such as one or more of PVA derivatives, nylon, and polypropylene.
各セパレータ原紙８１．８２の一方の面に酢酸ビニルを
主体とした複数本の線状の接着剤層８１ａ、８２ａを形
成しつつ巻回し、各セパレータ原紙８１．８２間を接着
し、２層構造の筒状セパレータを形成する。A plurality of linear adhesive layers 81a and 82a mainly made of vinyl acetate are formed on one side of each separator base paper 81.82 and wound, and each separator base paper 81.82 is bonded to form a two-layer structure. A cylindrical separator is formed.
このようにしてできた筒状セパレータを２本のローラー
ではさんで押し潰したのち、開口端を線状に熱圧着して
融着部９で閉塞し、正極板長さよシ長い寸法で裁断し、
第１図（ロ）のように封筒状セパレータ８を形成する。After crushing the cylindrical separator thus produced between two rollers, the open end is heat-pressed in a linear shape to close it at the fused part 9, and then cut into pieces longer than the length of the positive electrode plate. ,
An envelope-shaped separator 8 is formed as shown in FIG. 1(b).
また第２図において、６はニッケルなどよりなる正極板
で、７はカドミウムなどよりなる負極板である。封筒状
セパレータ８内に正極板６を納め、これと負極板７とを
交互に重ね合せ、極板群を形成する。この際極板群の両
側面には負極板７が露出するようにする。尚６ａはリー
ド端子で蓋板２に電気的に接続される。Further, in FIG. 2, 6 is a positive electrode plate made of nickel or the like, and 7 is a negative electrode plate made of cadmium or the like. A positive electrode plate 6 is housed in an envelope-shaped separator 8, and this and a negative electrode plate 7 are stacked alternately to form an electrode plate group. At this time, the negative electrode plate 7 is exposed on both sides of the electrode plate group. Note that 6a is a lead terminal electrically connected to the cover plate 2.
次に、極板群を金属容器１内に収納したのち、絶縁ガス
ケット４内に蓋板２を納めた封口部材を金属容器ｌの開
口部に圧入して、内方突出部ｌａ上に載置する。そして
蓋板２上に安全弁５、正極端子３の順に重ね、金属容器
ｌの開口部をカシメて封口し、本発明の密閉形アルカリ
蓄電池を製造し完成させる。Next, after storing the electrode plate group in the metal container 1, a sealing member containing the lid plate 2 in the insulating gasket 4 is press-fitted into the opening of the metal container l, and placed on the inward protrusion la. do. Then, the safety valve 5 and the positive terminal 3 are stacked on the lid plate 2 in this order, and the opening of the metal container 1 is caulked and sealed to complete the production of the sealed alkaline storage battery of the present invention.
ちなみに、セパレータとして本発明による封筒状のセパ
レータを用いた密閉形アルカリ蓄電他人と、従来の極板
よシ寸法大の帯状セパレータを用いた密閉形アルカリ蓄
電池Ｂとを夫々製造し、試料２００個の内部短絡不良数
を調べたところ、下記の結果が得られた。Incidentally, a sealed alkaline storage battery B using an envelope-shaped separator according to the present invention as a separator and a sealed alkaline storage battery B using a strip separator larger in size than the conventional electrode plate were manufactured, and 200 samples were manufactured. When we investigated the number of internal short-circuit defects, we obtained the following results.
表
上表よシ、本発明電池人は内部短絡が完全に防止されて
いることが判った。これは従来電池が正極板と負極板と
を重ね合せる際、その間を隔離するセパレータの位置決
めに精度を要するにもかかわらず、極板のズレが発生し
たシ、極板群端部で正極板が完全にセパレータで包被さ
れていないため、金属容器との接触が起こってしまうか
らである。これに比べ、本発明電池は封筒状のセパレー
タで正極板が完全に包被されているので、内部短絡の危
険性が全くない。As shown in the table, it was found that internal short circuits were completely prevented in the batteries of the present invention. This is because when conventional batteries overlap the positive and negative electrode plates, the positioning of the separator that separates them requires precision, but misalignment of the electrode plates occurs, and the positive electrode plate completely closes at the end of the electrode group. This is because the metal container is not covered with a separator, so it may come into contact with the metal container. In contrast, in the battery of the present invention, the positive electrode plate is completely covered with the envelope-shaped separator, so there is no risk of internal short circuit.
本発明によれば正、負両極板を隔離するセパレータを封
筒状とすることで、極板の重ね合せの際の位置決め精度
を上げる必要もなく、また金属容器内に絶縁部材を設け
る必要もない。さらに封筒状セパレータは自動機にて、
巻回、融着、裁断が連続的に行なわれ、しかも封筒状セ
パレータの巾は均一でバラツキを最小限に管理できる。According to the present invention, by making the separator that separates the positive and negative electrode plates into an envelope shape, there is no need to improve the positioning accuracy when stacking the electrode plates, and there is no need to provide an insulating member inside the metal container. . Furthermore, the envelope-shaped separator is made using an automatic machine.
Winding, fusing, and cutting are performed continuously, and the width of the envelope-shaped separator is uniform so that variations can be kept to a minimum.
このため電池の放電容量を増せ、また組立工数も減らす
ことができる。Therefore, the discharge capacity of the battery can be increased and the number of assembly steps can be reduced.
第１図（イ）は本発明による密閉形アルカリ蓄電池の一
実施例に用いられる筒状セパレータの製造方法を示した
図、（ロ）は同実施例に用いられる封筒状セパレータの
正面図、第２図は同実施例における密閉形アルカリ蓄電
池の断面図である。
ｌ・・・金属容器 ６・・・正極板７・・負極板
８・・・封筒状セパレータ９・・融着部
（資）・・回転軸８１・・・第１のセパレータ原
紙
８２・第２のセパレータ原紙
８１ａ、８２ａ・・・接着剤層FIG. 1(A) is a diagram showing a method for manufacturing a cylindrical separator used in an embodiment of a sealed alkaline storage battery according to the present invention, FIG. 1(B) is a front view of an envelope-shaped separator used in the same embodiment, and FIG. FIG. 2 is a sectional view of the sealed alkaline storage battery in the same example. l...Metal container 6...Positive electrode plate 7...Negative electrode plate 8...Envelope-shaped separator 9...Fusion part
(Capital)...Rotating shaft 81...First separator base paper 82/Second separator base paper 81a, 82a...Adhesive layer
Claims (2)
レータを封筒状とし、この封筒状セパレータ内に正極板
を挿入し全体を包被し、負極板と重ね合せて極板群を形
成し、金属容器内に収納することを特徴とする密閉形ア
ルカリ蓄電池の製造法。(1) The separator that separates the band-shaped positive electrode plate and negative electrode plate is shaped like an envelope, and the positive electrode plate is inserted into the envelope-shaped separator to cover the whole, and then overlapped with the negative electrode plate to form an electrode plate group. A method for producing a sealed alkaline storage battery characterized by storing the battery in a metal container.
繊維紙を螺旋状に巻回して長尺の筒状とし、開口端を熱
圧着により閉塞したのち、正極板の長さより長い寸法で
裁断して製造することを特徴とする特許請求の範囲第１
項記載の密閉形アルカリ蓄電池の製造法。(2) The envelope-shaped separator is made by winding one or more sheets of synthetic fiber paper spirally to form a long cylinder, and after closing the open end by thermocompression bonding, Claim 1 characterized in that the product is manufactured by cutting.
A method for producing a sealed alkaline storage battery as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61251593A JPS63108665A (en) | 1986-10-24 | 1986-10-24 | Manufacture of sealed alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61251593A JPS63108665A (en) | 1986-10-24 | 1986-10-24 | Manufacture of sealed alkaline storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63108665A true JPS63108665A (en) | 1988-05-13 |
Family
ID=17225123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61251593A Pending JPS63108665A (en) | 1986-10-24 | 1986-10-24 | Manufacture of sealed alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63108665A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6060255A (en) * | 1997-10-03 | 2000-05-09 | Tosoh Corporation | Type IV collagen high molecular form and production and diagnostic use thereof |
| US7407702B2 (en) | 1999-09-13 | 2008-08-05 | Teijin Limited | Polymetaphenylene isophthalamide-based polymer porous film, process for its production and battery separator |
-
1986
- 1986-10-24 JP JP61251593A patent/JPS63108665A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6060255A (en) * | 1997-10-03 | 2000-05-09 | Tosoh Corporation | Type IV collagen high molecular form and production and diagnostic use thereof |
| US7407702B2 (en) | 1999-09-13 | 2008-08-05 | Teijin Limited | Polymetaphenylene isophthalamide-based polymer porous film, process for its production and battery separator |
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