JPS648898B2 - - Google Patents
Info
- Publication number
- JPS648898B2 JPS648898B2 JP1238882A JP1238882A JPS648898B2 JP S648898 B2 JPS648898 B2 JP S648898B2 JP 1238882 A JP1238882 A JP 1238882A JP 1238882 A JP1238882 A JP 1238882A JP S648898 B2 JPS648898 B2 JP S648898B2
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- battery
- alkaline
- negative electrode
- injecting
- 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
Links
- 239000003792 electrolyte Substances 0.000 claims description 31
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 8
- 239000002562 thickening agent Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】
本発明は、亜鉛粉末と増粘剤とを粉末状で混合
した負極に苛性ソーダを含むアルカリ電解液を注
液して構成するアルカリ電池の製造法に関するも
ので、湿度60〜70％の雰囲気下で負極にアルカリ
電解液を注液し、注液後５分以内に封口すること
により、アルカリ電池の製造直後および保存後の
内部抵抗を低下させ、さらにアルカリ電池の放電
中における内部抵抗の上昇を抑制することを目的
とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an alkaline battery, which is constructed by injecting an alkaline electrolyte containing caustic soda into a negative electrode made of a powdered mixture of zinc powder and a thickener. By injecting alkaline electrolyte into the negative electrode in an atmosphere of ~70% and sealing it within 5 minutes after injection, the internal resistance of alkaline batteries can be lowered immediately after manufacture and after storage, and even during discharge of alkaline batteries. The purpose is to suppress the increase in internal resistance.
従来、亜鉛粉末と増粘剤とを粉末状で混合した
負極にアルカリ電解液を注液してなるアルカリ電
池の製造においては、常温・常湿の条件下で負極
にアルカリ電解液を注液し、注液した後１分〜15
分後に封口していた。この種電池の電解液には苛
性カリを主とするものと、苛性ソーダを主とする
ものがあるが、特に後者は低湿度雰囲気下では濃
度変化が激しい。従つて、上記のような製造法に
おいては、湿度条件あるいは注液後の放置時間等
が均一でないため、苛性ソーダを主とする電解液
を注液した後に、負極中に吸収された電解液中の
水分が蒸発し、電池に構成された後の電解液濃度
にバラツキがあつた。特に、30％以下の低湿度領
域で５分以上放置された場合には、電池の内部抵
抗が著しく上昇するという欠点があつた。また、
放電途中や保存中に内部抵抗が上昇するため、長
期間の信頼性が要求される付加機能付の時計など
の仕様には充分満足することができなかつた。 Conventionally, in the production of alkaline batteries in which alkaline electrolyte is injected into a negative electrode made of a powdered mixture of zinc powder and a thickener, the alkaline electrolyte is injected into the negative electrode under normal temperature and normal humidity conditions. , 1 minute to 15 minutes after injection
It was sealed a minute later. The electrolytes of this type of battery include those mainly composed of caustic potash and those mainly composed of caustic soda, and the concentration of the latter particularly changes drastically in a low humidity atmosphere. Therefore, in the above manufacturing method, since the humidity conditions or the standing time after injection are not uniform, after injection of an electrolyte mainly consisting of caustic soda, the electrolyte absorbed into the negative electrode is The water evaporated and the concentration of the electrolyte after it was assembled into a battery varied. In particular, if the battery is left in a low humidity region of 30% or less for more than 5 minutes, the internal resistance of the battery increases significantly. Also,
Because the internal resistance increases during discharge and storage, it was not possible to fully satisfy the specifications of watches with additional functions that require long-term reliability.
本発明は、以上のような不都合を解消するもの
で、亜鉛粉末と増粘剤との混合物に対して、湿度
60〜70％の雰囲気下で、20〜30重量％の苛性ソー
ダを含む電解液を注液し、注液後５分以内に封口
することを特徴とする。 The present invention solves the above-mentioned inconveniences by controlling the humidity of the mixture of zinc powder and thickener.
It is characterized by injecting an electrolytic solution containing 20 to 30% by weight of caustic soda in an atmosphere of 60 to 70% and sealing within 5 minutes after injection.
本発明の製造法によれば、負極に電解液を注液
した後から封口までに生じる負極に吸収した電解
液中の水分の蒸発を抑制することが可能となり、
電池として構成したアルカリ電池の電解液濃度を
均一にすることができる。また、電池内に含まれ
る電解液の濃度を均一にすることができるので、
従来、生じていた直後と放電途中および保存中の
内部抵抗の上昇等の欠点を解消することが可能と
なる。 According to the manufacturing method of the present invention, it is possible to suppress the evaporation of water in the electrolyte absorbed by the negative electrode that occurs after the electrolyte is injected into the negative electrode until the sealing.
The electrolyte concentration of the alkaline battery configured as a battery can be made uniform. In addition, since the concentration of the electrolyte contained in the battery can be made uniform,
It becomes possible to eliminate the conventional disadvantages such as an increase in internal resistance immediately after discharge, during discharge, and during storage.
以下に本発明を実施例により詳細に説明する。 The present invention will be explained in detail below using examples.
第１図は本発明を適用したボタン形アルカリマ
ンガン電池を示す。１は外面がニツケル、中心部
がステンレス鋼、内面が銅よりなるクラツド板で
作つた負極端子を兼ねる封口板、２はニツケルメ
ツキ鋼板からなる正極端子を兼ねる電池ケースで
ある。３はポリアミド樹脂などからなるガスケツ
トで、その内面に封口板１が嵌着され、ケース２
のフランジを内方にわん曲させることにより、内
部に電池構成要素を封入している。４は正極合剤
で、正極リング５とともにケースに成形圧入され
ている。６はセパレータ、７は電解液含浸材であ
る。 FIG. 1 shows a button-type alkaline manganese battery to which the present invention is applied. Reference numeral 1 designates a sealing plate that also serves as a negative electrode terminal and is made of a clad plate made of nickel on the outside, stainless steel in the center, and copper on the inner surface, and 2 is a battery case that also serves as a positive electrode terminal and is made of a nickel-plated steel plate. 3 is a gasket made of polyamide resin, etc. A sealing plate 1 is fitted on the inner surface of the gasket, and a case 2
By bending the flange inward, the battery components are enclosed inside. 4 is a positive electrode mixture, which is molded and press-fitted into the case together with the positive electrode ring 5. 6 is a separator, and 7 is an electrolyte impregnated material.
８は亜鉛粉末と増粘剤とを粉末状で混合した負
極合剤で、後述のようにしてアルカリ電解液が注
液される。 Reference numeral 8 denotes a negative electrode mixture prepared by mixing zinc powder and a thickener in powder form, into which an alkaline electrolyte is injected as described below.
本発明による製造法について説明すれば、ま
ず、亜鉛粉末と増粘剤とを粉末状で混合してなる
負極合剤を封口板１内に秤量する。次にこの封口
板を湿度60〜70％の雰囲気中に置き、20〜30重量
％の苛性ソーダを含むアルカリ電解液を注液す
る。アルカリ電解液を注液した後、正極とセパレ
ータ及び電解液含浸材を組み入れ、電解液を注液
したケース１に組合せ、ケース２の開口端を内方
にわん曲して電池構成要素を内部に封入する。苛
性ソーダを20〜30重量％含むアルカリ電解液は、
湿度60〜70％の範囲で濃度変化が少なく、さらに
注液度５分以内に電池を封口することにより、電
解液中の水分の蒸発が抑制され、電池内の電解液
濃度を均一にすることができる。 To explain the manufacturing method according to the present invention, first, a negative electrode mixture made by mixing zinc powder and a thickener in powder form is weighed into the sealing plate 1. Next, this sealing plate is placed in an atmosphere with a humidity of 60 to 70%, and an alkaline electrolyte containing 20 to 30% by weight of caustic soda is poured into it. After injecting the alkaline electrolyte, the positive electrode, separator, and electrolyte-impregnated material are assembled, assembled into case 1 in which the electrolyte has been injected, and the open end of case 2 is bent inward to place the battery components inside. Encapsulate. An alkaline electrolyte containing 20 to 30% by weight of caustic soda is
There is little change in concentration in the humidity range of 60-70%, and by sealing the battery within 5 minutes, evaporation of water in the electrolyte is suppressed and the concentration of electrolyte in the battery is made uniform. I can do it.
次に、酸化銀に二酸化マンガン及びカーボンを
加えて正極合剤を用い、負極合剤として、亜鉛粉
末と増粘剤のカルボキシメチルセルロースとの混
合物、電解液として酸化亜鉛を５重量％含む苛性
ソーダの20〜30重量％水溶液を用いたボタン形銀
電池SR721SWについての実験結果を説明する。
第２図はアルカリ電解液を負極に注液する際の湿
度条件及び電解液の注液後から封口までに要した
時間と、電池の直後の内部抵抗の関係を示す。 Next, a positive electrode mixture was prepared by adding manganese dioxide and carbon to silver oxide, a mixture of zinc powder and carboxymethyl cellulose as a thickener was used as a negative electrode mixture, and 20% of caustic soda containing 5% by weight of zinc oxide was used as an electrolyte. We will explain the experimental results for the button-shaped silver battery SR721SW using ~30% by weight aqueous solution.
FIG. 2 shows the relationship between the humidity conditions when injecting the alkaline electrolyte into the negative electrode, the time required from injecting the electrolyte to the sealing, and the internal resistance immediately after the battery.
また第３図はアルカリ電解液を負極に注液する
際の湿度条件及び電解液の注液後から封口までに
要した時間と放電中の内部抵抗との関係を示す。 Moreover, FIG. 3 shows the relationship between the humidity conditions when injecting the alkaline electrolyte into the negative electrode, the time required from the time of injecting the electrolyte to the sealing, and the internal resistance during discharge.
第２図、第３図から明らかなように、湿度60〜
70％の雰囲気下で電池を構成した場合と、30〜60
％の雰囲気下で構成した場合とでは内部抵抗に差
があり、又電解液を注液した後に封口までにかか
る時間によつても内部抵抗に差があり、注液後５
分以内に封口した電池の内部抵抗が低い。なお湿
度70〜80％の雰囲気下で構成した場合は、内部抵
抗においては低く良好であるが、電解液、ゲル化
剤等が雰囲気中の水分も吸収し、電解液組成が変
化する。また実質的な電解液量が増加し、耐漏液
性が劣下すると共に、セパレータが加湿されるこ
とにより、セパレータ切断状態が悪く、工程トラ
ブルが発生するなど問題が生じ、70〜80％の雰囲
気下は適さない範囲であることがわかつた。 As is clear from Figures 2 and 3, the humidity is 60~
When the battery is configured under an atmosphere of 70% and 30 to 60
There is a difference in internal resistance between the configuration in an atmosphere of
The internal resistance of the battery sealed within minutes is low. Note that when constructed in an atmosphere with a humidity of 70 to 80%, the internal resistance is low and good, but the electrolyte, gelling agent, etc. absorb moisture in the atmosphere, and the electrolyte composition changes. In addition, the actual amount of electrolyte increases, the leakage resistance deteriorates, and the separator is humidified, causing problems such as poor separator cutting conditions and process troubles. It turns out that the lower range is not suitable.
以上のように、本発明によれば、内部抵抗が低
く、かつ一定品質のアルカリ電池を得ることがで
きる。 As described above, according to the present invention, an alkaline battery with low internal resistance and constant quality can be obtained.
第１図は本発明の実施例に用いたアルカリ電池
の一部を断面にした側面図、第２図は負極への注
液時の湿度条件及び封口までの時間と電池の直後
の内部抵抗との関係を示したグラフ、第３図は同
様に湿度条件及び封口までの時間と電池放電中の
内部抵抗との関係を示したグラフである。
４……正極合剤、６……セパレータ、７……電
解液含浸材、８……負極。
Figure 1 is a partially cross-sectional side view of an alkaline battery used in an example of the present invention, and Figure 2 shows the humidity conditions during injection into the negative electrode, the time until sealing, and the internal resistance immediately after the battery. Similarly, FIG. 3 is a graph showing the relationship between humidity conditions, time until sealing, and internal resistance during battery discharge. 4... Positive electrode mixture, 6... Separator, 7... Electrolyte impregnated material, 8... Negative electrode.
Claims (1)
苛性ソーダを20〜30重量％含むアルカリ電解液を
注液して負極を構成するアルカリ電池の製造法で
あつて、粉末状で混合した亜鉛粉末と増粘剤に湿
度60〜70％の雰囲気下で前記電解液を注液し、注
液後５分以内に封口することを特徴とするアルカ
リ電池の製造法。1. After mixing zinc powder and thickener in powder form,
This is a method for manufacturing alkaline batteries in which the negative electrode is formed by injecting an alkaline electrolyte containing 20 to 30% by weight of caustic soda into a mixture of zinc powder and a thickener in an atmosphere with a humidity of 60 to 70%. A method for producing an alkaline battery, comprising injecting the electrolytic solution and sealing the battery within 5 minutes after the electrolyte is injected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1238882A JPS58129772A (en) | 1982-01-28 | 1982-01-28 | Manufacture of alkaline cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1238882A JPS58129772A (en) | 1982-01-28 | 1982-01-28 | Manufacture of alkaline cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58129772A JPS58129772A (en) | 1983-08-02 |
| JPS648898B2 true JPS648898B2 (en) | 1989-02-15 |
Family
ID=11803878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1238882A Granted JPS58129772A (en) | 1982-01-28 | 1982-01-28 | Manufacture of alkaline cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58129772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112016005376B4 (en) | 2015-11-24 | 2021-11-04 | Autonetworks Technologies, Ltd. | Shield connector and shielded cable with one connector |
-
1982
- 1982-01-28 JP JP1238882A patent/JPS58129772A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112016005376B4 (en) | 2015-11-24 | 2021-11-04 | Autonetworks Technologies, Ltd. | Shield connector and shielded cable with one connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58129772A (en) | 1983-08-02 |
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