JPH0689712A - Manufacture of alkaline storage battery - Google Patents
Manufacture of alkaline storage batteryInfo
- Publication number
- JPH0689712A JPH0689712A JP4268063A JP26806392A JPH0689712A JP H0689712 A JPH0689712 A JP H0689712A JP 4268063 A JP4268063 A JP 4268063A JP 26806392 A JP26806392 A JP 26806392A JP H0689712 A JPH0689712 A JP H0689712A
- Authority
- JP
- Japan
- Prior art keywords
- separator
- battery
- alkaline storage
- discharge
- storage battery
- 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.)
- Withdrawn
Links
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
- Y02E60/10—Energy storage using batteries
Landscapes
- Cell Separators (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アルカリ蓄電池の製造
方法に係わり、さらに詳しくそのセパレータの改良に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an alkaline storage battery, and more particularly to improving the separator thereof.
【０００２】[0002]
【従来の技術】アルカリ蓄電池のセパレータとしては、
ポリアミド繊維やポリオレフィン繊維の不織布が用いら
れている〔たとえば、吉沢四郎監修「電池ハンドブッ
ク」、（株）電気書院、ｐ３〜１５（昭５０）〕。2. Description of the Related Art As a separator for alkaline storage batteries,
Nonwoven fabrics of polyamide fibers and polyolefin fibers are used [for example, "Battery Handbook" supervised by Shiro Yoshizawa, Denki Shoin Co., Ltd., pp. 3-15 (50)].
【０００３】しかし、ポリアミド繊維は親水性が優れて
いるものの、アルカリに対する安定性に欠け、電解液中
で分解が生じるので、このポリアミド繊維の不織布をセ
パレータとして用いたアルカリ蓄電池では、セパレータ
の分解に基づいて自己放電が生じるという問題があった
〔たとえば、Ｈ．Ｓ．Ｌｉｍ等：“Ｐｒｏｃｅｅｄｉｎ
ｇｓ ｏｆ ｔｈｅ ２７ｔｈ Ｐｏｗｅｒ Ｓｏｕｒ
ｃｅｓ Ｃｏｎｆｅｒｅｎｃｅ”、ｐ８３〜８５（’７
６）〕。However, although the polyamide fiber is excellent in hydrophilicity, it lacks stability against alkali and decomposes in an electrolytic solution. Therefore, in an alkaline storage battery using the nonwoven fabric of the polyamide fiber as a separator, the separator cannot be decomposed. However, there is a problem that self-discharge is generated based on [H. S. Lim et al .: “Proceedin
gs of the 27th Power Source
ces Conference ", p83-85 ('7
6)].
【０００４】また、後者のポリオレフィン繊維はアルカ
リに対する安定性が優れているものの、親水性が劣るた
め、セパレータとして用いるポリオレフィン繊維の不織
布には界面活性剤で表面処理して親水性を付与すること
が行われているが、この界面活性剤で表面処理したポリ
オレフィン不織布をセパレータとして用いたアルカリ蓄
電池では、界面活性剤が充放電サイクル中に電解液中に
溶け出し、自己放電を引き起こすという問題があった
（たとえば、特開昭６４−５７５６８号公報）。The latter polyolefin fiber is excellent in alkali stability but inferior in hydrophilicity. Therefore, the polyolefin fiber nonwoven fabric used as a separator may be surface-treated with a surfactant to impart hydrophilicity. However, in alkaline storage batteries using the polyolefin non-woven fabric surface-treated with this surfactant as a separator, there was a problem that the surfactant was dissolved in the electrolytic solution during the charge / discharge cycle and caused self-discharge. (For example, Japanese Patent Laid-Open No. 64-57568).
【０００５】[0005]
【発明が解決しようとする課題】上記のようにポリアミ
ド不織布をセパレータとして用いたアルカリ蓄電池で
は、ポリアミド不織布の分解に基づく自己放電が生じ、
またポリオレフィン不織布をセパレータとして用いたア
ルカリ蓄電池では、親水性付与のために使用した界面活
性剤に基づく自己放電が生じるという問題があった。As described above, in the alkaline storage battery using the polyamide nonwoven fabric as the separator, self-discharge occurs due to the decomposition of the polyamide nonwoven fabric,
In addition, an alkaline storage battery using a polyolefin nonwoven fabric as a separator has a problem that self-discharge occurs due to a surfactant used for imparting hydrophilicity.
【０００６】したがって、本発明は、従来のアルカリ蓄
電池が持っていたセパレータに基づく問題点を解決し、
自己放電が少なく、貯蔵特性が優れたアルカリ蓄電池を
提供することを目的とする。[0006] Therefore, the present invention solves the problems due to the separator that the conventional alkaline storage battery has,
It is an object of the present invention to provide an alkaline storage battery having less self-discharge and excellent storage characteristics.
【０００７】[0007]
【課題を解決するための手段】本発明は、合成繊維不織
布からなるセパレータを熱処理してから電池組立に供す
ることによって、上記目的を達成したものである。The present invention has achieved the above object by subjecting a separator made of a synthetic fiber nonwoven fabric to a heat treatment and then subjecting it to battery assembly.
【０００８】すなわち、セパレータを熱処理することに
よって、下記の現象が生じる。That is, the following phenomenon occurs by heat-treating the separator.
【０００９】 結晶化度の上昇 不安定末端基の架橋 オリゴマーの除去、架橋Increase in crystallinity Crosslinking of unstable terminal groups Removal of oligomers, crosslinking
【００１０】そして、その結果、セパレータの電解液に
対する安定性が向上し、貯蔵中の自己放電が抑制され、
貯蔵特性が向上する。As a result, the stability of the separator against the electrolytic solution is improved, and self-discharge during storage is suppressed,
Storage characteristics are improved.
【００１１】セパレータを構成する合成繊維不織布とし
ては、たとえばポリアミド不織布や、ポリプロピレン不
織布、ポリエチレン不織布などのポリオレフィン不織布
が挙げられる。Examples of the synthetic fiber nonwoven fabric constituting the separator include polyamide nonwoven fabric, polyolefin nonwoven fabric such as polypropylene nonwoven fabric and polyethylene nonwoven fabric.
【００１２】前記の「結晶化度の上昇」とは、セパレ
ータとして用いるポリアミド不織布やポリオレフィン不
織布を構成するポリアミドやポリオレフィンの結晶化度
が上昇することを意味し、この結晶化度の上昇により、
アルカリなどに対する安定性がより一層向上して、自己
放電が少なくなる。The above-mentioned "increased crystallinity" means that the crystallinity of polyamide or polyolefin constituting the polyamide nonwoven fabric or the polyolefin nonwoven fabric used as a separator is increased, and this increase in crystallinity causes
The stability against alkali etc. is further improved and self-discharge is reduced.
【００１３】また、前記の「不安定末端基の架橋」と
は、ポリアミド不織布やポリオレフィン不織布を構成す
るポリアミドやポリオレフィン中に残存するカルボキシ
ル基、アミノ基、アルキル基などの不安定な末端基を架
橋させて、それらと活物質との反応を低減させ、自己放
電を少なくするものである。The above-mentioned "crosslinking of unstable terminal groups" means crosslinking of unstable terminal groups such as carboxyl groups, amino groups and alkyl groups remaining in polyamides and polyolefins constituting polyamide nonwoven fabrics and polyolefin nonwoven fabrics. The reaction between them and the active material is reduced, and self-discharge is reduced.
【００１４】前記の「オリゴマーの除去、架橋」とは
ポリアミド不織布やポリオレフィン不織布を構成するポ
リアミドやポリオレフィン中に残存する重合度２０程度
以下などのオリゴマーを除去したり、それらを架橋させ
て、それらのオリゴマーと活物質との反応を低減させ、
自己放電を少なくするものである。The above-mentioned "removal and cross-linking of oligomers" means removal of oligomers having a polymerization degree of about 20 or less remaining in polyamides and polyolefins constituting polyamide nonwoven fabrics and polyolefin nonwoven fabrics or cross-linking them to remove them. Reduces the reaction between the oligomer and the active material,
This is to reduce self-discharge.
【００１５】上記セパレータの熱処理は減圧下７５〜２
５０℃で２〜２０時間行うのが好ましい。熱処理を減圧
下で行うのは、残存する未反応物質の低減（未反応物質
を気化させて除去する）をできるだけ低い温度で実施で
きるようにするためであり、減圧度は特に限定されるも
のでないが、通常、１０ｍｍＨｇ以下にすることが好ま
しい。The heat treatment of the separator is carried out under reduced pressure at 75-2.
It is preferably carried out at 50 ° C. for 2 to 20 hours. The heat treatment is performed under reduced pressure in order to reduce residual unreacted substances (vaporize and remove unreacted substances) at a temperature as low as possible, and the degree of reduced pressure is not particularly limited. However, it is usually preferable that the pressure is 10 mmHg or less.
【００１６】熱処理時の温度は上記のように７５〜２５
０℃が適しているが、これは熱処理時の温度が７５℃よ
り低い場合には前記した結晶化度の上昇や不安定末端基
の架橋などが充分に行われず、また温度が２５０℃より
高くなるとセパレータを構成する合成繊維不織布の劣化
が生じるからである。The temperature during the heat treatment is 75 to 25 as described above.
0 ° C is suitable, but when the temperature during heat treatment is lower than 75 ° C, the above-mentioned increase in crystallinity and crosslinking of unstable terminal groups are not sufficiently performed, and the temperature is higher than 250 ° C. This is because the synthetic fiber nonwoven fabric that constitutes the separator is deteriorated.
【００１７】熱処理の時間は上記のように２〜２０時間
が適しているが、これは熱処理時の温度や合成繊維不織
布の種類によっても若干異なるものの、熱処理時間が少
なすぎると前記した結晶化度の上昇などの効果が生じに
くく、また熱処理時の時間が高くなるとセパレータを構
成する合成繊維不織布の熱劣化が生じるようになるから
である。As described above, the heat treatment time is suitable for 2 to 20 hours. Although the heat treatment time is slightly different depending on the temperature at the heat treatment and the kind of the synthetic fiber non-woven fabric, if the heat treatment time is too short, the above-mentioned crystallinity is increased. This is because effects such as increase in the heat resistance are less likely to occur, and if the time during the heat treatment is increased, the synthetic fiber nonwoven fabric forming the separator is thermally deteriorated.
【００１８】本発明において、正極に用いる金属酸化物
や金属水酸化物としては、たとえば、一酸化ニッケル
（ＮｉＯ）、二酸化ニッケル（ＮｉＯ2 ）、水酸化ニッ
ケル〔Ｎｉ（ＯＨ）2 〕などが代表的なものとして挙げ
られる。ただし、これらは、正極が放電状態にあるとき
であり、正極が充電状態では上記金属酸化物や金属水酸
化物は上記とは別の化合物として存在する。In the present invention, examples of the metal oxide or metal hydroxide used for the positive electrode include nickel monoxide (NiO), nickel dioxide (NiO 2 ), nickel hydroxide [Ni (OH) 2 ], and the like. It can be cited as an example. However, these are when the positive electrode is in a discharged state, and when the positive electrode is in a charged state, the above metal oxide or metal hydroxide exists as a compound different from the above.
【００１９】負極にはカドミウム、亜鉛、鉄、それらの
酸化物または水酸化物、あるいは水素吸蔵合金が活物質
として用いられる。For the negative electrode, cadmium, zinc, iron, their oxides or hydroxides, or hydrogen storage alloys are used as active materials.
【００２０】そして、電解液としては、水酸化カリウ
ム、水酸化ナトリウム、水酸化リチウムなどのアルカリ
水溶液が用いられる。As the electrolytic solution, an alkaline aqueous solution such as potassium hydroxide, sodium hydroxide or lithium hydroxide is used.
【００２１】[0021]
【実施例】つぎに、実施例をあげて本発明をより具体的
に説明する。ただし、本発明はそれらの実施例のみに限
定されるものではない。EXAMPLES Next, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to only those examples.
【００２２】実施例１ 厚さ０．１５ｍｍで重量６５ｇ／ｍ2 のポリアミド不織
布〔日本バイリーン（株）製のＦＴ−７６５（商品
名）〕を１０ｍｍＨｇ以下に保った減圧雰囲気中、２０
０℃で４時間加熱し、冷却した後、この熱処理したポリ
アミド不織布をセパレータとして電池組立に供した。Example 1 A polyamide non-woven fabric having a thickness of 0.15 mm and a weight of 65 g / m 2 [FT-765 (trade name) manufactured by Nippon Vilene Co., Ltd.] was kept at 10 mmHg or less in a reduced pressure atmosphere for 20 times.
After heating at 0 ° C. for 4 hours and cooling, this heat-treated polyamide nonwoven fabric was used as a separator for battery assembly.
【００２３】正極には焼結式ニッケル電極を用い、負極
には水素吸蔵合金電極を用い、電解液には濃度３０重量
％の水酸化カリウム水溶液を用いて、図１に示す構造で
単３形のアルカリ蓄電池を作製した。A sintered nickel electrode is used for the positive electrode, a hydrogen storage alloy electrode is used for the negative electrode, and a potassium hydroxide aqueous solution having a concentration of 30% by weight is used for the electrolytic solution. The alkaline storage battery of was produced.
【００２４】図１に示す電池について説明すると、１は
正極、２は負極、３はセパレータ、４は渦巻状電極体、
５は電池ケース、６は環状ガスケット、７は封口蓋、８
は端子板、９は封口板、１０は金属バネ、１１は弁体、
１２は正極リード体、１３は絶縁体、１４は絶縁体であ
る。Explaining the battery shown in FIG. 1, 1 is a positive electrode, 2 is a negative electrode, 3 is a separator, 4 is a spiral electrode body,
5 is a battery case, 6 is an annular gasket, 7 is a sealing lid, 8
Is a terminal plate, 9 is a sealing plate, 10 is a metal spring, 11 is a valve body,
Reference numeral 12 is a positive electrode lead body, 13 is an insulator, and 14 is an insulator.
【００２５】正極１は上記のように焼結式ニッケル電極
が用いられていて、活物質として水酸化ニッケル（ただ
し、放電時で、充電時にはオキシ水酸化ニッケルにな
る）を含むシート状のものであり、負極２は圧着式で作
製されたシート状の水素吸蔵合金電極からなるものであ
る。The positive electrode 1 uses a sintered nickel electrode as described above, and is in the form of a sheet containing nickel hydroxide (which becomes nickel oxyhydroxide at the time of discharging and at the time of charging) as an active material. The negative electrode 2 is composed of a sheet-shaped hydrogen storage alloy electrode manufactured by a pressure bonding method.
【００２６】セパレータ３は上記のようにポリアミド不
織布を熱処理してから電池組立に供したものであり、上
記正極１と負極２はこのセパレータ３を介して重ね合わ
せられ渦巻状に巻回されて渦巻状電極体４として電池ケ
ース５内に挿入され、その上部には絶縁体１４が配置さ
れている。また、上記渦巻状電極体４の電池ケース５内
への挿入に先立って、電池ケース５の底部に絶縁体１３
が配置され、電池ケース５と正極１との接触を防止して
いる。The separator 3 is obtained by heat-treating the polyamide nonwoven fabric as described above and then used for battery assembly. The positive electrode 1 and the negative electrode 2 are superposed with the separator 3 interposed therebetween, and are spirally wound and swirled. The electrode body 4 is inserted into the battery case 5, and the insulator 14 is arranged on the upper part thereof. Further, prior to the insertion of the spiral electrode body 4 into the battery case 5, the insulator 13 is attached to the bottom of the battery case 5.
Are arranged to prevent contact between the battery case 5 and the positive electrode 1.
【００２７】環状ガスケット６はナイロン６６で作製さ
れ、封口蓋７は端子板８と封口板９とで構成され、電池
ケース５の開口部はこの封口蓋７と上記環状ガスケット
６とで封口されている。The annular gasket 6 is made of nylon 66, the sealing lid 7 is composed of the terminal plate 8 and the sealing plate 9, and the opening of the battery case 5 is sealed by the sealing lid 7 and the annular gasket 6. There is.
【００２８】つまり、電池ケース５内に渦巻状電極体４
や絶縁体１４などを挿入した後、電池ケース５の開口端
近傍部分に底部が内方に突出した環状の溝５ａを形成
し、その溝５ａの内方突出部で環状ガスケット６の下部
を支えさせて環状ガスケット６と封口蓋７とを電池ケー
ス５の開口部に配置し、電池ケース５の溝５ａから先の
部分を内方に締め付けて電池ケース５の開口部を封口蓋
７と環状ガスケット６とで封口している。That is, the spiral electrode body 4 is provided in the battery case 5.
After inserting the insulator, the insulator 14, etc., an annular groove 5a with a bottom protruding inward is formed in the vicinity of the open end of the battery case 5, and the inward protruding portion of the groove 5a supports the lower portion of the annular gasket 6. Then, the annular gasket 6 and the sealing lid 7 are arranged in the opening of the battery case 5, and the portion beyond the groove 5a of the battery case 5 is tightened inward to close the opening of the battery case 5 to the sealing lid 7 and the annular gasket. It is sealed with 6.
【００２９】上記端子板８にはガス排出孔８ａが設けら
れ、封口板９にはガス検知孔９ａが設けられ、端子板８
と封口板９との間には金属バネ１０と弁体１１とが配置
されている。そして、封口板９の外周部を折り曲げて端
子板８の外周部を挟み込んで端子板８と封口板９とを固
定している。The terminal plate 8 is provided with a gas discharge hole 8a, the sealing plate 9 is provided with a gas detection hole 9a, and the terminal plate 8 is provided.
The metal spring 10 and the valve body 11 are arranged between the sealing plate 9 and the sealing plate 9. Then, the outer peripheral portion of the sealing plate 9 is bent to sandwich the outer peripheral portion of the terminal plate 8 to fix the terminal plate 8 and the sealing plate 9.
【００３０】この電池は、通常の状況下では金属バネ１
０の押圧力により弁体１１がガス検知孔９ａを閉鎖して
いるので、電池内部は密閉状態に保たれているが、電池
内部にガスが発生して電池内圧が異常に上昇した場合に
は、金属バネ１０が収縮して弁体１１とガス検知孔９ａ
との間に隙間が生じ、電池内部のガスはガス検知孔９ａ
およびガス排出孔８ａを通過して電池外部に放出され、
電池破裂が防止できるように構成されている。This battery has a metal spring 1 under normal circumstances.
Since the valve body 11 closes the gas detection hole 9a by the pressing force of 0, the inside of the battery is kept in a sealed state, but when gas is generated inside the battery and the internal pressure of the battery rises abnormally, , The metal spring 10 contracts and the valve body 11 and the gas detection hole 9a
A gap is created between the gas inside the battery and the gas inside the battery and the gas detection hole 9a
And is discharged to the outside of the battery through the gas discharge hole 8a,
It is configured to prevent the battery from bursting.
【００３１】上記電池を１００ｍＡで１５時間充電し、
２００ｍＡで０．９Ｖまで放電するという充放電サイク
ルを１０回繰り返し、１０回目の放電容量を測定し、こ
れを貯蔵前容量とした。The above battery was charged at 100 mA for 15 hours,
The charge / discharge cycle of discharging to 0.9 V at 200 mA was repeated 10 times, and the discharge capacity at the 10th time was measured, and this was taken as the capacity before storage.
【００３２】その後、同じ条件で充電し、４５℃で１０
日間貯蔵し、同じ条件で放電し、その時の放電容量を測
定し、これを貯蔵後容量とし、下式によって容量保持率
を算出したところ、容量保持率は４５％であった。Thereafter, the battery is charged under the same conditions and the temperature is 10 ° C at 45 ° C.
It was stored for a day, discharged under the same conditions, the discharge capacity at that time was measured, this was taken as the capacity after storage, and the capacity retention rate was calculated by the following formula. The capacity retention rate was 45%.
【００３３】 [0033]
【００３４】実施例２ 厚さ０．１６ｍｍで重量５５ｇ／ｍ2 のポリオレフィン
不織布〔日本バイリーン（株）製のＦＴ−３００（商品
名）〕を１０ｍｍＨｇ以下に保った減圧雰囲気中、１５
０℃で２時間加熱し、冷却した後、この熱処理したポリ
プロピレン不織布をセパレータとして電池組立に供し、
それ以外は実施例１と同様にして電池を作製し、容量保
持率を測定したところ、容量保持率は５０％であった。Example 2 A polyolefin non-woven fabric having a thickness of 0.16 mm and a weight of 55 g / m 2 [FT-300 (trade name) manufactured by Nippon Vilene Co., Ltd.] was kept under 10 mmHg in a reduced pressure atmosphere for 15
After heating at 0 ° C for 2 hours and cooling, the heat-treated polypropylene non-woven fabric is used as a separator for battery assembly,
A battery was produced in the same manner as in Example 1 except for the above, and the capacity retention was measured. As a result, the capacity retention was 50%.
【００３５】比較例１ 厚さ０．１５ｍｍで重量６５ｇ／ｍ2 のポリアミド不織
布〔日本バイリーン（株）製のＦＴ−７６５（商品
名）〕を熱処理することなくセパレータとして電池組立
に供し、それ以外は実施例１と同様にして電池を作製
し、容量保持率を測定したところ、容量保持率は１０％
であった。Comparative Example 1 A polyamide nonwoven fabric [FT-765 (trade name) manufactured by Japan Vilene Co., Ltd.] having a thickness of 0.15 mm and a weight of 65 g / m 2 was used as a separator for battery assembly without heat treatment. A battery was made in the same manner as in Example 1 and the capacity retention rate was measured. The capacity retention rate was 10%.
Met.
【００３６】比較例２ 厚さ０．１６ｍｍで重量５５ｇ／ｍ2 のポリオレフィン
不織布〔日本バイリーン（株）製のＦＴ−３００（商品
名）〕を熱処理することなくセパレータとして電池組立
に供し、それ以外は実施例１と同様にして電池を作製
し、容量保持率を測定したところ、容量保持率は１５％
であった。Comparative Example 2 A polyolefin non-woven fabric having a thickness of 0.16 mm and a weight of 55 g / m 2 [FT-300 (trade name) manufactured by Nippon Vilene Co., Ltd.] was used as a separator for battery assembly without heat treatment. A battery was made in the same manner as in Example 1 and the capacity retention rate was measured. The capacity retention rate was 15%.
Met.
【００３７】以上の結果をセパレータの材質、熱処理の
有無などと併せて表１に示す。なお、表１では、セパレ
ータの材質は簡略化してポリマー名のみで示す。The above results are shown in Table 1 together with the material of the separator and the presence or absence of heat treatment. In Table 1, the material of the separator is simplified and shown only by the polymer name.
【００３８】[0038]
【表１】 [Table 1]
【００３９】表１に示すように、本発明の実施例１〜２
は比較例１〜２に比べて、容量保持率が高く、セパレー
タを熱処理してから電池組立に供することにより、貯蔵
中の自己放電が抑制され、貯蔵特性が向上することが明
らかにされていた。As shown in Table 1, Examples 1 to 2 of the present invention
Has a higher capacity retention rate than Comparative Examples 1 and 2, and it has been clarified that by subjecting the separator to heat treatment and then subjecting it to battery assembly, self-discharge during storage is suppressed and storage characteristics are improved. .
【００４０】[0040]
【発明の効果】以上説明したように、本発明では、セパ
レータを熱処理してから電池組立に供することにより、
貯蔵中の自己放電が少なく、貯蔵特性の優れたアルカリ
蓄電池を提供することができた。As described above, according to the present invention, by subjecting the separator to heat treatment and then subjecting it to battery assembly,
It was possible to provide an alkaline storage battery that has less self-discharge during storage and has excellent storage characteristics.
【図１】本発明のアルカリ蓄電池の一実施例を拡大して
示す縦断面図である。FIG. 1 is an enlarged vertical sectional view showing an embodiment of an alkaline storage battery of the present invention.
１ 正極 ２ 負極 ３ セパレータ 1 Positive electrode 2 Negative electrode 3 Separator
Claims (1)
ト状の正極１と、カドミウム、亜鉛、鉄、それらの酸化
物または水酸化物、あるいは水素吸蔵合金を含むシート
状の負極２と、合成繊維不織布からなるセパレータ３
と、アルカリ水溶液からなる電解液を有するアルカリ蓄
電池の製造にあたり、上記セパレータ３を熱処理してか
ら電池組立に供することを特徴とするアルカリ蓄電池の
製造方法。1. A sheet-shaped positive electrode 1 containing a metal oxide or a hydrous oxide, and a sheet-shaped negative electrode 2 containing cadmium, zinc, iron, their oxides or hydroxides, or a hydrogen storage alloy. Separator 3 made of synthetic fiber non-woven fabric
And a method of manufacturing an alkaline storage battery having an electrolytic solution comprising an alkaline aqueous solution, the separator 3 is heat-treated and then subjected to battery assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4268063A JPH0689712A (en) | 1992-09-09 | 1992-09-09 | Manufacture of alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4268063A JPH0689712A (en) | 1992-09-09 | 1992-09-09 | Manufacture of alkaline storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0689712A true JPH0689712A (en) | 1994-03-29 |
Family
ID=17453377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4268063A Withdrawn JPH0689712A (en) | 1992-09-09 | 1992-09-09 | Manufacture of alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0689712A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100773795B1 (en) * | 2006-09-25 | 2007-11-06 | 주식회사 디지털텍 | Winding type electrolytic condenser using conductive polymer and method for manufacturing the same |
| WO2014010753A1 (en) * | 2012-07-11 | 2014-01-16 | 帝人株式会社 | Microfiber structure |
| WO2021175277A1 (en) * | 2020-03-04 | 2021-09-10 | 华为技术有限公司 | Battery separator and preparation method therefor, battery, and terminal |
-
1992
- 1992-09-09 JP JP4268063A patent/JPH0689712A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100773795B1 (en) * | 2006-09-25 | 2007-11-06 | 주식회사 디지털텍 | Winding type electrolytic condenser using conductive polymer and method for manufacturing the same |
| WO2014010753A1 (en) * | 2012-07-11 | 2014-01-16 | 帝人株式会社 | Microfiber structure |
| WO2021175277A1 (en) * | 2020-03-04 | 2021-09-10 | 华为技术有限公司 | Battery separator and preparation method therefor, battery, and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991130 |