JPH01128358A - Manufacture of manganese dry cell - Google Patents
Manufacture of manganese dry cellInfo
- Publication number
- JPH01128358A JPH01128358A JP28428787A JP28428787A JPH01128358A JP H01128358 A JPH01128358 A JP H01128358A JP 28428787 A JP28428787 A JP 28428787A JP 28428787 A JP28428787 A JP 28428787A JP H01128358 A JPH01128358 A JP H01128358A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- electrode mixture
- black mix
- electrolyte
- zinc
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims description 9
- 229910052748 manganese Inorganic materials 0.000 title claims description 9
- 239000011572 manganese Substances 0.000 title claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000011701 zinc Substances 0.000 claims abstract description 15
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 48
- 239000008151 electrolyte solution Substances 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 abstract description 17
- 238000007796 conventional method Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000243 solution 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
- H01M6/08—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with cup-shaped electrodes
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)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、円筒形のマンガン乾電池の製造方法の改良
に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an improvement in a method for manufacturing a cylindrical manganese dry battery.
（従来の技術）
マンガン乾電池の製造方法の従来の代表的な１つに以下
のような各工程を含んだものが知られている。(Prior Art) A typical conventional method for manufacturing a manganese dry battery is known to include the following steps.
■・・・円柱型に成形した正極合剤を、セパレータを内
面を被覆した有底円筒形の負極亜鉛缶に装填する。■...The positive electrode mixture formed into a cylindrical shape is loaded into a bottomed cylindrical negative electrode zinc can whose inner surface is covered with a separator.
■・・・上記負極亜鉛缶内で上記正極合剤を加圧する。(2) Pressurize the positive electrode mixture in the negative electrode zinc can.
■・・・上記負極亜鉛缶内の上記正極合剤の中心線に沿
って正極集電子としての炭素棒を圧入にする。(2) Press-fit a carbon rod as a positive electrode current collector along the center line of the positive electrode mixture in the negative electrode zinc can.
■・・・上記■の工程の後で上記正極合剤の上に電解液
または水を注ぎ入れ、この液が上記正極合剤に吸収され
るのを待つ。なお、電解液でなくて水を注入するのは、
濃い電解液を成形工程の前に正極合剤に含ませておく方
式の場合である。(2) After the step (2) above, pour the electrolytic solution or water onto the positive electrode mixture and wait for this liquid to be absorbed by the positive electrode mixture. In addition, injecting water instead of electrolyte is
This is a method in which a concentrated electrolyte is included in the positive electrode mixture before the molding process.
（発明が解決しようとする問題点）
負極亜鉛缶内で加圧された正極合剤は非常に密度が高く
なっており、これの上に注入した電解液（水の場合もあ
るが、以下では電解液と記す）を正極合剤に上部から下
部まで均一に吸収・含浸させるのには非常に時間がかか
る。十分な時間をかけて何回かに分けて注液すれば多量
の電解液を正極合剤に含ませることができるが、限られ
た工程時間内ではそうすることができず、実際に製品化
されている電池の電解液含有量はあまり多くなく、しか
も正極合剤中における電解液の濃度分布も均一になりに
くい。(Problem to be solved by the invention) The positive electrode mixture pressurized inside the negative electrode zinc can has a very high density, and an electrolyte (sometimes water may be used, but in the following, it is injected on top of this) It takes a very long time to absorb and impregnate the positive electrode mixture uniformly from the top to the bottom of the positive electrode mixture. Although it is possible to incorporate a large amount of electrolyte into the positive electrode mixture by injecting the solution in several batches over a sufficient period of time, this was not possible within the limited process time, and it was not possible to actually commercialize the product. The electrolyte content of such batteries is not very large, and the concentration distribution of the electrolyte in the positive electrode mixture is difficult to achieve.
電池に含まれている電解液の量が十分でないと周知のよ
うに高負荷放電性能が悪くなる。また、放電末期や長期
貯蔵後において、正極合剤中の液分が少なくなることで
合剤が収縮し、その結果合剤と炭素棒との接触部分が緩
み（接触性が悪くなる）、その後の放電特性が著しく劣
化する。As is well known, if the amount of electrolyte contained in the battery is not sufficient, high load discharge performance will deteriorate. In addition, at the end of discharge or after long-term storage, the liquid content in the positive electrode mixture decreases, causing the mixture to shrink, and as a result, the contact area between the mixture and the carbon rod becomes loose (poor contact properties), and then discharge characteristics deteriorate significantly.
なお従来において、前述の■の工程で炭素棒を打込む際
の位置決め六を浅く形成するようにした製造方法も知ら
れている。この場合も正極合剤に炭素棒を打込んでから
注液しているため、上記と同じ問題が生じる。In the past, there has also been known a manufacturing method in which the positioning six when driving the carbon rod in the above-mentioned step (1) is formed shallowly. In this case as well, the same problem as above occurs because the carbon rod is inserted into the positive electrode mixture before the liquid is injected.
この発明は上述した従来の問題点に鑑みてなされたもの
で、その目的は、注液工程において短時間で多量の電解
液または水を正極合剤に均一に吸収させることができる
ようにしたマンガン乾電池の製造方法を適応することに
ある。This invention was made in view of the above-mentioned conventional problems, and its purpose is to make it possible to uniformly absorb a large amount of electrolyte or water into the positive electrode mixture in a short time during the injection process. The aim is to adapt the manufacturing method of dry cell batteries.
（問題点を解決するための手段）
そこでこの発明では、負極亜鉛缶に装填した正極合剤を
加圧する工程で、この正極合剤の中心線に沿って炭素棒
の外径と等しいか小さい内径の深い縦穴を形成しておき
、次に正極合剤の上に電解液または水を注ぎ入れ、この
液を上記縦穴などを通して正極合剤に吸収させる。この
注液工程の後で上記縦穴に正極集電子としての炭素棒を
圧入する。(Means for solving the problem) Therefore, in this invention, in the step of pressurizing the positive electrode mixture loaded in the negative electrode zinc can, the inner diameter of the carbon rod is equal to or smaller than the outer diameter of the carbon rod along the center line of this positive electrode mixture. A deep vertical hole is formed in advance, and then an electrolytic solution or water is poured onto the positive electrode mixture, and this liquid is absorbed into the positive electrode mixture through the vertical hole. After this liquid injection step, a carbon rod as a positive electrode current collector is press-fitted into the vertical hole.
（作 用）
この発明の製造方法においては、注入した電解液または
水はまず上記正極合剤の中心線に沿って形成された深い
縦穴を満たし、また上記正極合剤の上面に溜る。この状
態から徐々に正極合剤に吸収されていくわけだが、上記
縦穴からその周辺に液が吸収されていくので、多量の液
が短時間で均一に正極合剤に吸収される。(Function) In the manufacturing method of the present invention, the injected electrolytic solution or water first fills the deep vertical hole formed along the center line of the positive electrode mixture and accumulates on the upper surface of the positive electrode mixture. From this state, the liquid is gradually absorbed into the positive electrode mixture, and since the liquid is absorbed from the vertical hole to the surrounding area, a large amount of liquid is uniformly absorbed into the positive electrode mixture in a short period of time.
（実 施 例）
この発明の一実施例によるマンガン乾電池の製造工程を
第１図〜第４図にしたがって順番に説明する。(Example) The manufacturing process of a manganese dry battery according to an example of the present invention will be explained in order according to FIGS. 1 to 4.
まず第１図に示すように、円柱形に成形した正極合剤１
を、セパレータ２で内面を被覆した有底円筒形の負極亜
鉛缶３に装填する。First, as shown in Fig. 1, the positive electrode mixture 1 is formed into a cylindrical shape.
is loaded into a bottomed cylindrical negative electrode zinc can 3 whose inner surface is covered with a separator 2.
次に第２図に示すように、正極合剤１を上からプレスし
て負極亜鉛缶３内でこれを加圧し、セパレータ２を挟ん
で負極亜鉛缶３と正極合剤１とを密着させる。この加圧
工程で同時に、正極合剤１の中心線に沿って深い縦穴４
を形成する。この縦穴４の内径は第４図の炭素棒６の外
径と等しいか多少率さい寸法とし、また深さは正極合剤
１のほぼ下端に達する程度の寸法とする。Next, as shown in FIG. 2, the positive electrode mixture 1 is pressed from above and pressurized inside the negative electrode zinc can 3 to bring the negative electrode zinc can 3 and the positive electrode mixture 1 into close contact with each other with the separator 2 in between. At the same time, in this pressurizing process, a deep vertical hole 4 is inserted along the center line of the positive electrode mixture 1.
form. The inner diameter of the vertical hole 4 is equal to or slightly larger than the outer diameter of the carbon rod 6 shown in FIG.
次が注液工程で、負極亜鉛缶３内の正極合剤１の上に電
解液を注ぎ入れる。すると第３図に示すように、注入さ
れた電解液５は正極合剤１の縦穴４を満たすとともに正
極合剤１の上面に溜る。この状態で少し時間をおくと電
解液５が正極合剤ｌに吸収される。Next is a liquid injection step, in which the electrolytic solution is poured onto the positive electrode mixture 1 inside the negative electrode zinc can 3. Then, as shown in FIG. 3, the injected electrolyte 5 fills the vertical hole 4 of the positive electrode mixture 1 and accumulates on the upper surface of the positive electrode mixture 1. After a while in this state, the electrolytic solution 5 is absorbed into the positive electrode mixture l.
上記のように電解液を正極合剤１に吸収させた後で、正
極集電子としての炭素棒６を縦穴４に圧入する。After the electrolyte is absorbed into the positive electrode mixture 1 as described above, the carbon rod 6 as a positive electrode current collector is press-fitted into the vertical hole 4.
この方法によれば、注液工程において、縦穴４があるの
で電解液５と正極合剤１との接触面積が大きくなり、液
の吸収速度が増す、それだけでなく、縦穴４が正極合剤
１の中心に上から下にわたって深く形成されているので
、正極合剤１の全体に均一に電解液５が吸収される。そ
の結果、従来より短時間でより多くの電解液を正極合剤
に吸収させることができる。According to this method, in the liquid injection process, the vertical hole 4 increases the contact area between the electrolytic solution 5 and the positive electrode mixture 1, increasing the absorption speed of the liquid. Since the positive electrode mixture 1 is deeply formed in the center from top to bottom, the electrolytic solution 5 is uniformly absorbed throughout the positive electrode mixture 1. As a result, more electrolyte can be absorbed into the positive electrode mixture in a shorter time than conventionally.
従来方法と本発明の方法とで電解液を吸収させる時間を
同じにして単一型のマンガン乾電池を製作し、それぞれ
を常温で６ケ月貯蔵した後の放電性能を調べな、放電試
験は２Ω負荷の連続放電での放電時間を調べた。その結
果、従来方法による電池に比べて本発明の方法による電
池の方が約１０％も放電時間が向上した。これは本発明
の方が従来より多くの電解液を正極合剤に吸収させるこ
とができるからである。Manganese dry batteries of the same type were manufactured using the conventional method and the method of the present invention for the same amount of time to absorb the electrolyte, and the discharge performance of each battery was examined after storing them at room temperature for 6 months.The discharge test was carried out under a 2Ω load. The discharge time in continuous discharge was investigated. As a result, the discharge time of the battery produced by the method of the present invention was improved by about 10% compared to the battery produced by the conventional method. This is because the present invention allows more electrolyte to be absorbed into the positive electrode mixture than the conventional method.
（発明の効果）
以上詳細に説明したように、この発明にかかるマンガン
乾電池の製造方法では、負極亜鉛缶内にに装填して加圧
した正極合剤の中心線に沿って深い縦穴を形成した後、
この正極合剤の上に電解液または水を注ぎ入れ、この液
を上記縦穴などを通して上記正極合剤に吸収させ、その
後で上記縦穴に炭素棒を圧入する手順としたので、注入
液が上記縦穴を通して正極合剤に速やかに吸収される。(Effects of the Invention) As explained in detail above, in the method for manufacturing a manganese dry battery according to the present invention, a deep vertical hole is formed along the center line of the positive electrode mixture, which is loaded into a negative electrode zinc can and pressurized. rear,
The electrolytic solution or water was poured onto the positive electrode mixture, this liquid was absorbed into the positive electrode mixture through the vertical hole, etc., and then the carbon rod was press-fitted into the vertical hole. is quickly absorbed into the positive electrode mixture.
つまり、多量の電解液を短時間で正極合剤に含ませるこ
とができ、その結果、高負荷放電性および貯蔵性能に優
れたマンガン乾電池を実現することができる。That is, a large amount of electrolyte can be included in the positive electrode mixture in a short time, and as a result, a manganese dry battery with excellent high load discharge performance and storage performance can be realized.
第１図〜第４図は本発明の一実施例によるマンガン乾電
池の製造工程を示す図である。1 to 4 are diagrams showing the manufacturing process of a manganese dry battery according to an embodiment of the present invention.
Claims (1)
するマンガン乾電池の製造方法。（ａ）・・・円柱形に
成形した正極合剤を、セパレータで内面を被覆した有底
円筒形の負極亜鉛缶に装填する。 （ｂ）・・・上記負極亜鉛缶内で上記正極合剤を加圧す
るとともに、上記正極合剤の中心線に沿って下記の炭素
棒の外径と等しいか小さい内径の深い縦穴を形成する。 （ｃ）・・・上記負極亜鉛缶内の上記正極合剤の上に電
解液または水を注ぎ入れ、この液を上記縦穴などを通し
て上記正極合剤に吸収させる。 （ｄ）・・・上記（ｃ）の工程の後で上記縦穴に正極集
電子としての炭素棒を圧入する。(1) A method for manufacturing a manganese dry battery, comprising the following steps (a) to (d). (a)...A positive electrode mixture formed into a cylindrical shape is loaded into a bottomed cylindrical negative electrode zinc can whose inner surface is covered with a separator. (b)...The positive electrode mixture is pressurized in the negative electrode zinc can, and a deep vertical hole with an inner diameter equal to or smaller than the outer diameter of the carbon rod described below is formed along the center line of the positive electrode mixture. (c)...Pour an electrolytic solution or water onto the positive electrode mixture in the negative electrode zinc can, and allow this liquid to be absorbed into the positive electrode mixture through the vertical hole or the like. (d)...After the step (c) above, a carbon rod as a positive electrode current collector is press-fitted into the vertical hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28428787A JPH01128358A (en) | 1987-11-12 | 1987-11-12 | Manufacture of manganese dry cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28428787A JPH01128358A (en) | 1987-11-12 | 1987-11-12 | Manufacture of manganese dry cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01128358A true JPH01128358A (en) | 1989-05-22 |
Family
ID=17676578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28428787A Pending JPH01128358A (en) | 1987-11-12 | 1987-11-12 | Manufacture of manganese dry cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01128358A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06235328A (en) * | 1992-11-07 | 1994-08-23 | Toyoaki Tokunaga | Object of exothermic body wrapped in ceramic |
| CN111864224A (en) * | 2019-11-26 | 2020-10-30 | 宁波丰银电池有限公司 | Zinc-manganese dry battery manufacturing process |
-
1987
- 1987-11-12 JP JP28428787A patent/JPH01128358A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06235328A (en) * | 1992-11-07 | 1994-08-23 | Toyoaki Tokunaga | Object of exothermic body wrapped in ceramic |
| CN111864224A (en) * | 2019-11-26 | 2020-10-30 | 宁波丰银电池有限公司 | Zinc-manganese dry battery manufacturing process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3776779A (en) | Gelled battery electrolyte containing a polyglycol polymer and a process for locating same within a lead-acid cell | |
| JPH01128358A (en) | Manufacture of manganese dry cell | |
| US5401279A (en) | Filling mat-immobilized-electrolyte batteries | |
| DE59208459D1 (en) | Process for the production of a lead accumulator with a thixotropic gel electrolyte | |
| US3014975A (en) | Positive plate for lead-acid batteries and method for its manufacture | |
| US3967980A (en) | Method for forming a dry charge-type battery itself | |
| US2544517A (en) | Method of making batteries | |
| JPS6119056A (en) | Separator for battery | |
| JPS59148282A (en) | Manufacturing method for sealed type lead storage battery | |
| JPS5521859A (en) | Preparation of electrode | |
| SU389584A1 (en) | ||
| JPS61151966A (en) | Manufacture of enclosed type lead storage battery | |
| JPS5569970A (en) | Enclosed type lead storage battery | |
| JPH08315832A (en) | Electrolyte injecting method for battery | |
| JP2946127B2 (en) | Battery and battery manufacturing method | |
| RU2069422C1 (en) | Lead-acid cell forming method | |
| JP3298177B2 (en) | Method for manufacturing electrode plate for lead-acid battery | |
| JPH05325950A (en) | Manufacture of lead-acid battery of negative electrode absorbing sealed type | |
| JPS6489161A (en) | Nonaqueous solvent secondary battery | |
| JPS59173968A (en) | Manufacture of organic electrolyte battery | |
| JPS58186164A (en) | Manufacture of negative electrode for alkaline battery | |
| JPS5996650A (en) | Injection method into cylindrical battery | |
| JPS5590063A (en) | Manufacturing method of dry cell | |
| JPH0480511B2 (en) | ||
| JPS62122062A (en) | Manufacture of instant use lead-acid battery |