JPS6319766A - Alkaline battery - Google Patents
Alkaline batteryInfo
- Publication number
- JPS6319766A JPS6319766A JP16201986A JP16201986A JPS6319766A JP S6319766 A JPS6319766 A JP S6319766A JP 16201986 A JP16201986 A JP 16201986A JP 16201986 A JP16201986 A JP 16201986A JP S6319766 A JPS6319766 A JP S6319766A
- Authority
- JP
- Japan
- Prior art keywords
- degree
- etherification
- negative electrode
- etherification degree
- cmc
- 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
- 238000006266 etherification reaction Methods 0.000 claims abstract description 29
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 20
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 20
- 239000003349 gelling agent Substances 0.000 claims abstract description 9
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 7
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 7
- 239000003792 electrolyte Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 abstract description 6
- 229920002678 cellulose Polymers 0.000 abstract description 4
- 239000001913 cellulose Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 2
- 238000004090 dissolution Methods 0.000 abstract description 2
- 230000000979 retarding effect Effects 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
-
- 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
- H01M6/22—Immobilising of electrolyte
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Colloid Chemistry (AREA)
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、粒状亜鉛を電解液にゲル状に分散させた負
極を使用するアルカリ電池に関し、特に、負極のゲル化
剤として使用するカルボキシメチルセルロースの改良に
関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to an alkaline battery using a negative electrode in which granular zinc is dispersed in an electrolytic solution in the form of a gel, and in particular, the present invention relates to an alkaline battery using a negative electrode in which granular zinc is dispersed in an electrolytic solution in the form of a gel. Regarding the improvement of
（従来の技術）
一般的なアルカリ電池の負極は、水酸化カリウム溶液な
どのアルカリ電解液に粒状亜鉛をゲル状に分散させたも
ので、ゲル化剤としてはカルボキシメチルセルロース（
以下ＣＭＣと称す）が使用されている。(Prior art) The negative electrode of a typical alkaline battery is made by dispersing granular zinc in a gel-like form in an alkaline electrolyte such as a potassium hydroxide solution, and the gelling agent is carboxymethyl cellulose (
(hereinafter referred to as CMC) is used.
（発明が解決しようとする問題点）
ゲル化剤としてのＣＭＣのエーテル化度（無水グルコー
ス単位１に対して、カルボキシメチル基何個がエーテル
結合しているかを示す数であり、ＣＭＣ全体の平均値と
して求められる。）は、粒状亜鉛をアルカリ電解液にゲ
ル状に分散させる際の重要な因子である。ＣＭＣのエー
テル化度が大きい程、電解液のアルカリ′ｆ：Ｊ度が比
較的低くても高粘度なゲル状負極が得られ、放電性能の
面で好ましい。(Problems to be Solved by the Invention) Degree of etherification of CMC as a gelling agent (a number indicating how many carboxymethyl groups are ether bonded to 1 anhydroglucose unit, the average of all CMC) ) is an important factor when dispersing granular zinc in an alkaline electrolyte in gel form. The higher the degree of etherification of CMC, the more viscous gel-like negative electrode can be obtained even if the alkaline 'f:J degree of the electrolyte is relatively low, which is preferable in terms of discharge performance.
しかしＣＭＣのエーテル化度が大きい程ゲル状負極のチ
クソトロピーが低下するため、粒状亜鈴が沈降しやすく
なり、電池組立時のゲル状負極の注入作業性が悪くなる
とともに、電池の保存性能が低下する。However, as the degree of etherification of CMC increases, the thixotropy of the gelled negative electrode decreases, making it easier for granular dumbbells to settle, which impairs the workability of pouring the gelled negative electrode during battery assembly, and reduces battery storage performance. .
従来のＣＭＣは分子内のエーテル化度をできるだけ均一
にするように工夫して生産されている。Conventional CMC is produced by making the degree of etherification within the molecule as uniform as possible.
ゲル化剤として使用するＣＭＣのエーテル化度をどの程
度に選定するかは電池メーカーの設計事項であり、上述
した相反する二つの面の兼合いで決めており、上記両面
を両立させることはできなかった。The degree of etherification of CMC used as a gelling agent is a design matter for the battery manufacturer, and is determined by balancing the two conflicting aspects mentioned above, and it is not possible to achieve both of the above. There wasn't.
この発明は上述した従来の問題点に鑑みなされたもので
、その目的は、電池性能上好ましい高粘度のゲル状負極
が得られ、しかもチクソトロピーを高く保ち、ゲル状負
極の注入作業性を良くするとともに、電池の保存性能を
も高めることができるようにした技術を提供することに
ある。This invention was made in view of the above-mentioned conventional problems, and its purpose is to obtain a gelled negative electrode with a high viscosity that is favorable for battery performance, maintain high thixotropy, and improve the workability of pouring the gelled negative electrode. At the same time, it is an object of the present invention to provide a technology that can also improve the storage performance of batteries.
（問題点を解決するための手段）
そこでこの発明で１よ、負極のゲル化剤用カルボキシメ
チルセルロースとして、分子内のエーテル化度が不均一
で、平均的エーテル化度が０．６〜１．３のものを使用
する。(Means for Solving the Problems) Accordingly, in the present invention, 1. The carboxymethyl cellulose for use as a gelling agent in the negative electrode has a nonuniform degree of etherification within the molecule, and an average degree of etherification of 0.6 to 1. Use item 3.
（作 用）
ＣＭＣ分子内でエーテル化度の大きい部分と小さい部分
とが混在し、エーテル化度が大きい部分の作用で粒状亜
鉛を良好にゲル化でき、エーテル化度の小さい部分の作
用でゲル状負極のチクソトロピーを高く保つことができ
る。(Function) Within the CMC molecule, parts with a high degree of etherification and parts with a low degree of etherification coexist, and the action of the part with a high degree of etherification allows the granular zinc to gel well, while the action of the part with a low degree of etherification causes it to gel. The thixotropy of the negative electrode can be kept high.
（実施例）
まず、分子内のエーテル化度が不均一なＣＭＣの製造方
法について説明する。これは容易で、か性ソーダとモノ
クロール酢酸を用い、セルロースを溶媒法でエーテル化
する通常のＣＭＣ製造方法において、溶媒濃度を高クシ
、アルカリセルロースの溶媒への溶解を抑制すればよい
。(Example) First, a method for manufacturing CMC having a non-uniform degree of etherification within the molecule will be described. This is easy; in the usual CMC production method in which cellulose is etherified by a solvent method using caustic soda and monochloroacetic acid, the solvent concentration is increased to suppress dissolution of the alkali cellulose in the solvent.
上記の方法で分子内エーテル化度の不均一なＣＭＣを製
造し、そのｑ、Ｍ、Ｃをエーテル化度の不均一さの程度
によって次の表に示す４種類に分類した。Ｎｏ、１はエ
ーテル化度が比較的均一であり、Ｎｏ、２→Ｎ０．３→
Ｎ０．４とエーテル化度がより不均一になっている。CMC having a nonuniform degree of intramolecular etherification was produced by the above method, and its q, M, and C were classified into four types shown in the following table according to the degree of nonuniformity of the degree of etherification. No.1 has a relatively uniform degree of etherification, No.2→N0.3→
N0.4 and the degree of etherification are more uneven.
ＣＭＣのエーテル化度比率（％）
以上の４師類のＣＩＶＩ Ｃをゲル化剤として用いて、
しＲ６型のアルカリ・マンガン電池をそれぞれ組立てた
。そして、その４種類の電池（各１００個）の放電性能
を比較してみた結果、次の表に示すようになった。Etherification degree ratio (%) of CMC Using the above four types of CIVI C as a gelling agent,
We assembled R6 type alkaline and manganese batteries. The discharge performance of the four types of batteries (100 each) was compared, and the results are shown in the following table.
放電性能（１０Ω連続 ２０℃）
以上の４種類の電池はいずれも、初度の放電性能として
は従来一般的なＬＲ６型アルカリ・マンガン電池と変わ
りはなく、３ケ月保存後の放電性能においては従来の電
池より明らかな性能向上が認められた。そして、電池組
立時のゲル状負極の注入作業性はＮｏ、１〜Ｎｏ、４と
もに従来より良好であった。Discharge performance (10Ω continuous, 20℃) All of the above four types of batteries have the same initial discharge performance as conventional LR6 type alkaline manganese batteries, and the discharge performance after 3 months storage is better than that of conventional batteries. A clear improvement in performance was observed compared to batteries. In addition, the workability of pouring the gelled negative electrode during battery assembly was better than the conventional method in all cases No. 1 to No. 4.
（発明の効果）
以上詳細に説明したように、この発明に係るアルカリ電
池では、負極のゲル化剤として分子内のエーテル化度が
不均一で、平均的エーテル化度が０３６〜１．３のＣＮ
１Ｃを使用したことにより、粒状亜鉛を良好にゲル状化
した高粘度の負極が（ｑられ、高い放電性能を実現でき
ると同時に、ゲル状負極のチクソトロピーはあまり低下
せず、電池組立時のゲル状負極の注入作業性がよいとと
もに、電池の保存性能も高く保てる。(Effects of the Invention) As explained in detail above, in the alkaline battery according to the present invention, the degree of etherification within the molecule is non-uniform as a gelling agent for the negative electrode, and the average degree of etherification is between 0.36 and 1.3. C.N.
By using 1C, a high viscosity negative electrode made of granular zinc well gelatinized can be achieved, achieving high discharge performance, and at the same time, the thixotropy of the gelled negative electrode does not decrease significantly, making it possible to easily gel during battery assembly. The injection workability of the shaped negative electrode is good, and the storage performance of the battery can also be kept high.
Claims (2)
用いて粒状亜鉛をアルカリ電解液にゲル状に分散させて
なる負極を使用するアルカリ電池において、上記カルボ
キシメチルセルロースとして、分子内のエーテル化度が
不均一で、平均的エーテル化度が０．６〜１．３のもの
を使用したことを特徴とするアルカリ電池。(1) In an alkaline battery that uses a negative electrode made by dispersing granular zinc in an alkaline electrolyte in gel form using a gelling agent made of carboxymethyl cellulose, the degree of etherification within the molecule is non-uniform as the carboxymethyl cellulose. An alkaline battery characterized by using an alkaline battery having an average degree of etherification of 0.6 to 1.3.
０〜７０％が０．６〜１．０のエーテル化度で、１０〜
４０％が１．０以上のエーテル化度のカルボキシメチル
セルロースを使用したことを特徴とする特許請求の範囲
第１項記載のアルカリ電池。(2) 10 to 40% has a degree of etherification of 0.6 or less, and 3
0-70% with degree of etherification of 0.6-1.0, 10-70%
The alkaline battery according to claim 1, characterized in that 40% of the battery uses carboxymethyl cellulose with a degree of etherification of 1.0 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16201986A JPS6319766A (en) | 1986-07-11 | 1986-07-11 | Alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16201986A JPS6319766A (en) | 1986-07-11 | 1986-07-11 | Alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6319766A true JPS6319766A (en) | 1988-01-27 |
Family
ID=15746512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16201986A Pending JPS6319766A (en) | 1986-07-11 | 1986-07-11 | Alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6319766A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3531501A4 (en) * | 2017-09-28 | 2019-12-04 | Maxell Holdings, Ltd. | Sheet-shaped air battery, production method therefor, and patch |
-
1986
- 1986-07-11 JP JP16201986A patent/JPS6319766A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3531501A4 (en) * | 2017-09-28 | 2019-12-04 | Maxell Holdings, Ltd. | Sheet-shaped air battery, production method therefor, and patch |
| US11695175B2 (en) | 2017-09-28 | 2023-07-04 | Maxell, Ltd. | Sheet-type air cell, method for manufacturing the same, and patch |
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