JPH0750600B2 - Air button battery - Google Patents
Air button batteryInfo
- Publication number
- JPH0750600B2 JPH0750600B2 JP60228018A JP22801885A JPH0750600B2 JP H0750600 B2 JPH0750600 B2 JP H0750600B2 JP 60228018 A JP60228018 A JP 60228018A JP 22801885 A JP22801885 A JP 22801885A JP H0750600 B2 JPH0750600 B2 JP H0750600B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- button battery
- separator
- air button
- internal resistance
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
-
- 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
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/429—Natural polymers
-
- 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
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cell Separators (AREA)
- Hybrid Cells (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は空気ボタン電池の改良に関するものである。Description: FIELD OF THE INVENTION The present invention relates to improvements in air button batteries.
従来の技術 空気電池、特に空気ボタン電池は単位重量あるいは単位
体積当りの電気容量が他の電池系に比較して大きく、か
つ低公害であるために水銀電池の代替として注目されて
いる。また補聴器用として用いられるにおいては機器の
発達に伴い、著しい内部インピーダンスの低下と、取扱
い簡便差が要求されるに至っている。2. Description of the Related Art Air batteries, especially air button batteries, are attracting attention as a substitute for mercury batteries because they have a larger electric capacity per unit weight or unit volume than other battery systems and have low pollution. Further, in the case of being used for hearing aids, with the development of the equipment, it is required that the internal impedance is remarkably lowered and the handling is simplified.
第１図に代表的な空気ボタン電池の断面図を示した。こ
の図において、１は汞化亜鉛、２は封口板、３は封口パ
ッキング、４は多孔性のセパレータで、ポリプロピレン
フィルム（以下、PPフィルムという）で形成されてい
る。５は空気極、６は空気拡散紙、７は正極ケース、８
は空気孔、９は封止紙である。FIG. 1 shows a cross-sectional view of a typical air button battery. In this figure, 1 is zinc fluoride, 2 is a sealing plate, 3 is a sealing packing, 4 is a porous separator, and is formed of a polypropylene film (hereinafter referred to as a PP film). 5 is an air electrode, 6 is an air diffusion paper, 7 is a positive electrode case, 8
Is an air hole, and 9 is a sealing paper.
第１図に示した様に空気ボタン電池のセパレータには多
孔性PPフィルムが用いられている。また、PPフィルムは
親水性が悪い為に、空気極とセパレータとの間に気泡が
たまりやすく内部抵抗の高い物が発生する。この為に空
気極とセパレータとを接着剤で部分的に接着したものも
用いられている。As shown in FIG. 1, a porous PP film is used for the separator of the air button battery. Further, since the PP film has poor hydrophilicity, air bubbles are likely to accumulate between the air electrode and the separator, and a substance having high internal resistance is generated. For this reason, the one in which the air electrode and the separator are partially bonded with an adhesive is also used.
発明が解決しようとする問題点 しかし多孔性PPフィルムをセパレータ４に用いた空気ボ
タン電池では以下の問題点があった。Problems to be Solved by the Invention However, the air button battery using the porous PP film as the separator 4 has the following problems.
（１）多孔性PPフィルムの親水性が悪い為に、空気極と
セパレータ間に気泡が入ると、電解液が空気極とセパレ
ータ間に浸透せず、内部抵抗が高くなる。(1) Due to the poor hydrophilicity of the porous PP film, when air bubbles enter between the air electrode and the separator, the electrolytic solution does not penetrate between the air electrode and the separator and the internal resistance increases.
（２）封止紙を除去し、乾燥雰囲気中に保存すると、空
気孔から水分が蒸発し、空気極及びセパレータが乾燥す
る。この結果、内部抵抗が保存に伴い、上昇する。(2) When the sealing paper is removed and stored in a dry atmosphere, moisture evaporates from the air holes and the air electrode and the separator are dried. As a result, the internal resistance increases with storage.
上記（１）の問題点についてはセパレータと空気極とを
部分的に接着することにより、内部低抗の低下は可能で
あるが、接着する工程が非常に複雑であり、コスト的に
高くなるという欠点がある。また、内部インピーダンス
の低下も十分ではない。Regarding the problem of (1) above, the internal resistance can be reduced by partially adhering the separator and the air electrode, but the adhering process is very complicated and the cost is high. There are drawbacks. In addition, the decrease in internal impedance is not sufficient.
本発明は上記のような従来の問題点を解消し、内部抵抗
が低くかつ封止紙を除去した開封状態においても内部抵
抗が上昇することのない空気ボタン電池を提供すること
を目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems, and to provide an air button battery which has a low internal resistance and which does not increase in the opened state with the sealing paper removed.
問題点を解決するための手段 この問題点を解決するため本発明は、セパレータ４に重
合度が400〜600の水和セルロースフィルムを用いたもの
である。好ましい水和セルロースフィルムの厚みは20〜
50μｍである。Means for Solving the Problem In order to solve this problem, the present invention uses a hydrated cellulose film having a degree of polymerization of 400 to 600 for the separator 4. Preferred hydrated cellulose film thickness is 20 ~
It is 50 μm.
作用 この構成によれば、セパレータと空気極との間に気泡が
入ることがなく、内部抵抗が低くなる。また、封止紙を
取り除いた状態においてもセパレータ４と空気極間が乾
燥することがなく、開封保存における内部抵抗の上昇が
なくできる。なお水和セルロースフィルムの重合度は40
0よりも低いと保存により劣化するので好ましくなく、
一般的に入手できる範囲では400〜600の重合度が好まし
い。Action According to this configuration, bubbles do not enter between the separator and the air electrode, and the internal resistance is reduced. Further, even when the sealing paper is removed, the space between the separator 4 and the air electrode is not dried, and the internal resistance can be prevented from increasing during opening and storage. The degree of polymerization of the hydrated cellulose film is 40.
If it is lower than 0, it deteriorates due to storage, which is not preferable
A degree of polymerization of 400 to 600 is preferred in the range generally available.
実施例 以下本実施例を説明する。Example This example will be described below.
本実施例における空気ボタン電池は第１図に示した空気
ボタン電池と同様の構成となっており、唯一、セパレー
タのみが重合度400〜600の水和セルロースフィルムで形
成されている点で異なる。なお、水和セルロースフィル
ムは厚さ30μｍとした。The air button battery in this example has the same structure as the air button battery shown in FIG. 1, except that only the separator is formed of a hydrated cellulose film having a polymerization degree of 400 to 600. The hydrated cellulose film had a thickness of 30 μm.
上記実施例の電池とセパレータに多孔性ポリプロピレン
フィルムを用いた空気ボタン電池（従来例１）及び多孔
性ポリプロピレンフィルムを解媒層に接着剤で接着した
空気ボタン電池（従来例２）を作成し比較を行なった。
なお、空気ボタン電池のサイズはIEC規格R44型とした。An air button battery using a porous polypropylene film as a separator (conventional example 1) and an air button battery (conventional example 2) in which a porous polypropylene film is bonded to a solvent-dissolving layer with an adhesive were prepared and compared. Was done.
The size of the air button battery was IEC standard R44 type.
以下に上記空気ボタン電池の内部抵抗を示した。The internal resistance of the above air button battery is shown below.
上記の様に実施例では従来例に比較して内部抵抗抗が小
さくかつバラツキも少ない。 As described above, the embodiment has smaller internal resistance and less variation than the conventional example.
第２図に20℃45％の保存条件で封止紙を除去して保存を
行なった場合の内部抵抗の変化を示した。従来例では、
保存とともに内部抵抗が増大するのに対して、実施例で
は内部抵抗の増大は認められなかった。Fig. 2 shows the change in internal resistance when the encapsulating paper was removed and stored under the storage condition of 20 ° C and 45%. In the conventional example,
While the internal resistance increased with storage, no increase in the internal resistance was observed in the examples.
次に第３図に水和セルロースの重合度を変えてIEC R44
タイプの空気ボタン電池を作り、それらを60℃で各期間
保存し、その後、20℃、負荷抵抗250Ω連続放電した結
果を示した。図より、明らかな様に重合度400以上では
優れた保存性を示した。Next, change the degree of polymerization of hydrated cellulose to IEC R44 in Fig. 3.
The following shows the results of making air button batteries of the type, storing them at 60 ° C for each period, and then continuously discharging them at 20 ° C and a load resistance of 250Ω. As is apparent from the figure, excellent storage stability was exhibited when the degree of polymerization was 400 or more.
第４図に上記と同様に水和セルロースフィルムの厚みを
変えて空気ボタン電池を作成し、60℃で各期間保存し、
その後20℃、負荷抵抗250Ω連続放電した結果を示し
た。また以下の表に上記空気ボタン電池の初期内部抵抗
を示した。なおここでの水和セルロースフィルムの重合
度は500とした。以上より明らかな様に厚みが20〜50μ
ｍの範囲では内部抵抗保存性能とも優れた結果を示して
いる。As shown in Fig. 4, air button cells were prepared by changing the thickness of the hydrated cellulose film and stored at 60 ° C for each period.
After that, the result of continuous discharge of load resistance of 250Ω at 20 ° C is shown. The initial internal resistance of the above air button battery is shown in the table below. The degree of polymerization of the hydrated cellulose film here was 500. As is clear from the above, the thickness is 20-50μ
In the range of m, excellent results are shown in the internal resistance storage performance.
なお、内部抵抗の測定は1KHz交流法で行ない、数値はｎ
＝50の平均値とした。 The internal resistance is measured by the 1KHz AC method, and the numerical value is n.
The average value was 50.
発明の効果 以上の説明から明らかなように、空気ボタン電池のセパ
レータとして重合度400〜600の水和セルロースフィルム
を用いると、内部抵抗が小さく、かつ開封保存性に優れ
た空気ボタン電池が得られるという効果が得られる。EFFECTS OF THE INVENTION As is clear from the above description, when a hydrated cellulose film having a degree of polymerization of 400 to 600 is used as a separator for an air button battery, the internal button resistance is small, and an air button battery having excellent open storage stability is obtained. The effect is obtained.
第１図は代表的な空気ボタン電池を示す断面図、第２図
は20℃45％保存における従来例と実施例の内部抵抗の挙
動図、第３図は水和セルロースの重合度による保存特性
の比較図、第４図は水和セルロースフィルムの厚さ変化
における保存特性の比較図である。 １……汞化亜鉛、２……封口板、３……封口パッキン
グ、４……セパレータ、５……空気極、６……空気拡散
紙、７……正極ケース、８……空気孔、９……封止紙。FIG. 1 is a cross-sectional view showing a typical air button battery, FIG. 2 is a behavioral diagram of internal resistance of a conventional example and an example at 20 ° C. 45% storage, and FIG. 3 is storage characteristics depending on the degree of polymerization of hydrated cellulose. FIG. 4 is a comparison diagram of the storage characteristics of the hydrated cellulose film with respect to the thickness change. 1 ... Zinc Fluoride, 2 ... Sealing plate, 3 ... Sealing packing, 4 ... Separator, 5 ... Air electrode, 6 ... Air diffusion paper, 7 ... Positive electrode case, 8 ... Air hole, 9 …… Sealing paper.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 沢井 忠 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (56)参考文献 特開 昭57−185668（ＪＰ，Ａ) 特開 昭53−83035（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadashi Sawai 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-57-185668 (JP, A) JP-A-53-83035 (JP, A)
Claims (2)
ロースフィルムを用いたことを特徴とする空気ボタン電
池。1. An air button battery characterized in that a hydrated cellulose film having a degree of polymerization of 400 to 600 is used as a separator.
ｍである特許請求の範囲第１項記載の空気ボタン電池。2. The hydrated cellulose film has a thickness of 20 to 50 μm.
The air button battery according to claim 1, wherein m is m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60228018A JPH0750600B2 (en) | 1985-10-14 | 1985-10-14 | Air button battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60228018A JPH0750600B2 (en) | 1985-10-14 | 1985-10-14 | Air button battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6288257A JPS6288257A (en) | 1987-04-22 |
| JPH0750600B2 true JPH0750600B2 (en) | 1995-05-31 |
Family
ID=16869899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60228018A Expired - Lifetime JPH0750600B2 (en) | 1985-10-14 | 1985-10-14 | Air button battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0750600B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5383035A (en) * | 1976-12-28 | 1978-07-22 | Suwa Seikosha Kk | Secondary battery |
| JPS5822862B2 (en) * | 1977-10-19 | 1983-05-11 | 株式会社ユアサコーポレーション | alkaline battery |
| JPS57185668A (en) * | 1981-05-11 | 1982-11-15 | Matsushita Electric Ind Co Ltd | Button-type air cell |
-
1985
- 1985-10-14 JP JP60228018A patent/JPH0750600B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6288257A (en) | 1987-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |