JPH05217605A - Button type air cell - Google Patents
Button type air cellInfo
- Publication number
- JPH05217605A JPH05217605A JP9222292A JP2229292A JPH05217605A JP H05217605 A JPH05217605 A JP H05217605A JP 9222292 A JP9222292 A JP 9222292A JP 2229292 A JP2229292 A JP 2229292A JP H05217605 A JPH05217605 A JP H05217605A
- Authority
- JP
- Japan
- Prior art keywords
- air
- positive electrode
- electrode case
- diffusion paper
- air diffusion
- 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
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
- Sealing Battery Cases Or Jackets (AREA)
- Hybrid Cells (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、空気ボタン電池に関す
るものである。FIELD OF THE INVENTION The present invention relates to an air button battery.
【０００２】[0002]
【従来の技術】空気ボタン電池を構成する場合、底部中
央部に凹部を設け、その中に空気孔を開口した有底円筒
状正極ケースの前記凹部に、多孔質の空気拡散紙を載置
し、さらに正極ケース内径とほぼ同径の撥水膜、金属集
電体と一体化した触媒物質よりなる空気極を載置してい
た。そこで、空気孔からの漏液の問題がなく、酸素の供
給障害を解決できる方法として正極ケースの形状を中心
に種々検討が加えられてきた。例えばケース底部に階段
状の段部を設け、中間段部の平坦部に空気孔を設けた正
極ケースを用いる空気ボタン電池（特開昭６２−２７２
４７６）。また正極ケースの底部周縁段部に、円周上凸
部を設け、撥水膜と正極ケース底部周縁段部との密着性
を改良した空気ボタン電池（特開平２−２６２２８１）
等である。2. Description of the Related Art In constructing an air button battery, a porous air diffusion paper is placed in the recess of a bottomed cylindrical positive electrode case having a recess at the center of the bottom and air holes opened therein. Further, a water repellent film having a diameter substantially the same as the inner diameter of the positive electrode case, and an air electrode made of a catalyst substance integrated with a metal current collector were placed. Therefore, various studies have been made mainly on the shape of the positive electrode case as a method for solving the problem of oxygen supply without the problem of liquid leakage from the air holes. For example, an air button battery using a positive electrode case in which a step-like step is provided on the bottom of the case and an air hole is provided in the flat part of the intermediate step (Japanese Patent Laid-Open No. 62-272).
476). Further, an air button battery in which a circumferential convex portion is provided on the bottom peripheral step of the positive electrode case to improve the adhesion between the water-repellent film and the bottom peripheral step of the positive case (Japanese Patent Laid-Open No. 2-262281).
Etc.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、正極ケースの底部内側に空気拡散紙を挿入
した場合、空気孔を通して電池内に流入する空気は、図
３に示すように空気拡散紙と空気孔が近接する局部のみ
を通して空気拡散紙の内部に拡散し、撥水膜、空気極へ
と空気が供給される。その結果として空気極での空気中
の酸素と陰極活物質である亜鉛との反応を十分に促進さ
せることができなく、電池の放電容量が少ないという問
題があった。However, in the above-mentioned conventional configuration, when the air diffusion paper is inserted inside the bottom of the positive electrode case, the air flowing into the battery through the air holes is the air diffusion paper as shown in FIG. The air diffuses into the inside of the air diffusion paper only through the local areas where the air holes are close to each other, and the air is supplied to the water repellent film and the air electrode. As a result, there is a problem that the reaction between oxygen in the air at the air electrode and zinc, which is the cathode active material, cannot be sufficiently promoted, and the discharge capacity of the battery is small.
【０００４】本発明は、上記のような従来の問題を解消
し、優れた放電特性を実現するための空気ボタン電池を
提供することを目的とするものである。It is an object of the present invention to provide an air button battery for solving the above-mentioned conventional problems and realizing excellent discharge characteristics.
【０００５】[0005]
【課題を解決するための手段】前記問題点を解決するた
め、本発明の空気ボタン電池は、正極ケースの底部内側
の周縁部に段部を設け、段部上に空気拡散紙の周縁部を
載し、空気拡散紙と正極ケースの底部内側面との間に空
隙層を設けることを特徴とする。In order to solve the above-mentioned problems, the air button battery of the present invention is provided with a step portion at the peripheral portion inside the bottom of the positive electrode case, and the peripheral portion of the air diffusion paper is provided on the step portion. It is characterized in that a void layer is provided between the air diffusion paper and the inner surface of the bottom of the positive electrode case.
【０００６】[0006]
【作用】この構成によれば、空気孔から流入する空気
は、正極ケースの底部内側全面に拡散し、その拡散した
空気は空気拡散紙の全面から内部へ拡散する。その結
果、図４に示すように、空気拡散紙、撥水膜、空気極へ
の空気供給がより円滑となり、空気極での空気中の酸素
と陰極活物質である亜鉛との反応を十分に促進させるこ
とができ、より安定した電池の放電容量が確保される。According to this structure, the air flowing in from the air holes diffuses to the entire inner surface of the bottom of the positive electrode case, and the diffused air diffuses from the entire surface of the air diffusion paper to the inside. As a result, as shown in FIG. 4, the air supply to the air diffusion paper, the water repellent film, and the air electrode becomes smoother, and the reaction between oxygen in the air and zinc, which is the cathode active material, at the air electrode is sufficient. It can be promoted and a more stable discharge capacity of the battery is secured.
【０００７】[0007]
【実施例】以下本発明の実施例を説明する。EXAMPLES Examples of the present invention will be described below.
【０００８】図１は、本発明の一実施例であるＰＲ４４
の空気ボタン電池の断面を示す。正極ケースはＳＵＳ材
にニッケルメッキをした厚み０．３０mmのものであり、
その底部に空気拡散紙収納部が存在し、その外径φは
９．０mm、深さｈは１．２mmである。また、正極ケース
の底部には直径１．０mmの空気取り入れ用の空気孔が少
なくとも１箇所設定されている。空気拡散紙収納用凹部
即ち正極ケースの底部内側の周縁部に段部（Ａ）を設
け、空気拡散紙を固定する。段部（Ａ）は、その片側幅
Ｄが１mm、深さＨは０．２mmとしている。空気拡散紙は
直径が８mm、厚みは１．０mmのビニロン製不織布を材質
とするもので段部に挿入固定する。４は空気極で、線径
０．１５mm、厚さ０．３mmで４０メッシュのニッケルス
クリーンに、活性炭、アセチレンブラックを、ポリテト
ラフルオロエチレンの結着剤とともに、厚さ０．３〜
０．３５mmに成型されている。空気極はその片面に多孔
性のフッ素樹脂よりなる撥水膜を圧着し、次に金型で正
極ケースに挿入できるように打ち抜かれる。打ち抜かれ
た撥水膜および空気極は、空気拡散紙上に載置され、次
にセパレータを挿入して、正極ケース側が完成する。７
は負極封口板で、封口パッキング８と嵌着され、内部に
は負極活物質となる亜鉛粉６とアルカリ電解液が充填さ
れている。この封口板７と正極ケース２を嵌合して、正
極ケース２の開口部を封口パッキング８を介して封口板
側に締めつけることによって、電池が完成する。FIG. 1 shows a PR44 which is an embodiment of the present invention.
2 shows a cross section of the air button battery of FIG. The positive electrode case is made of SUS material with nickel plating and has a thickness of 0.30 mm.
An air diffusion paper storage is present at the bottom, and its outer diameter φ is 9.0 mm and its depth h is 1.2 mm. In addition, at least one air hole for air intake having a diameter of 1.0 mm is set at the bottom of the positive electrode case. A step portion (A) is provided at the peripheral portion inside the bottom portion of the positive electrode case, that is, the concave portion for storing the air diffusion paper, and the air diffusion paper is fixed. The step portion (A) has a width D on one side of 1 mm and a depth H of 0.2 mm. The air diffusion paper is made of vinylon non-woven fabric having a diameter of 8 mm and a thickness of 1.0 mm, and is inserted and fixed in the step portion. Numeral 4 is an air electrode having a wire diameter of 0.15 mm and a thickness of 0.3 mm, a 40-mesh nickel screen, activated carbon and acetylene black, together with a binder of polytetrafluoroethylene, and a thickness of 0.3 to
It is molded to 0.35 mm. The air electrode is punched so that a water-repellent film made of a porous fluororesin is pressure-bonded to one surface of the air electrode, and then the air electrode can be inserted into a positive electrode case with a mold. The punched water-repellent film and the air electrode are placed on the air diffusion paper, and then the separator is inserted to complete the positive electrode case side. 7
Is a negative electrode sealing plate, which is fitted with a sealing packing 8 and is filled with zinc powder 6 as a negative electrode active material and an alkaline electrolyte. The battery is completed by fitting the sealing plate 7 and the positive electrode case 2 and tightening the opening of the positive electrode case 2 to the sealing plate side via the sealing packing 8.
【０００９】以上の本発明における空気ボタン電池と図
２で示される従来の構成での電池を作成し、負荷抵抗６
２０Ωで放電を実施した時の放電時間を比較した結果を
表１に示した。テスト数は各々１００個、放電終止電圧
は０．９Ｖで比較した。The air button battery according to the present invention and the battery having the conventional configuration shown in FIG.
Table 1 shows the results of comparison of discharge times when discharge was performed at 20Ω. The number of tests was 100, and the final discharge voltage was 0.9V for comparison.
【００１０】[0010]
【表１】 [Table 1]
【００１１】表１のように本発明電池は放電特性に優
れ、耐漏液特性は従来電池と同等程度を確保できるもの
である。As shown in Table 1, the battery of the present invention has excellent discharge characteristics, and the leakage resistance can be as high as that of the conventional battery.
【００１２】[0012]
【発明の効果】以上のように本発明は、空気ボタン電池
正極ケースの底部内側の周縁部に段部を設け、段部上に
空気拡散紙の周縁部を載置することにより、電池内への
空気供給が円滑に行われ、放電特性において優れた空気
ボタン電池を提供するものである。INDUSTRIAL APPLICABILITY As described above, according to the present invention, a step portion is provided on the inner peripheral edge portion of the bottom of the air button battery positive electrode case, and the peripheral edge portion of the air diffusion paper is placed on the step portion, so that the battery can be installed inside the battery. The present invention provides an air button battery in which the air supply is smoothly performed and the discharge characteristics are excellent.
【図１】本発明の空気ボタン電池の実施例における断面
図FIG. 1 is a sectional view of an air button battery according to an embodiment of the present invention.
【図２】従来の空気ボタン電池における断面図FIG. 2 is a sectional view of a conventional air button battery.
【図３】従来の空気ボタン電池における空気孔近傍の空
気の流れを示した図FIG. 3 is a diagram showing a flow of air near air holes in a conventional air button battery.
【図４】本発明の空気ボタン電池における空気孔近傍の
空気の流れを示した図FIG. 4 is a diagram showing the flow of air near air holes in the air button battery of the present invention.
１ 空気拡散紙 ２ 正極ケース ３ 撥水膜 ４ 空気極 ５ セパレータ ６ 亜鉛粉 ７ 封口板 ８ 封口パッキング ９ 空気孔 Ａ 段部 1 Air diffusion paper 2 Positive electrode case 3 Water repellent film 4 Air electrode 5 Separator 6 Zinc powder 7 Sealing plate 8 Sealing packing 9 Air hole A Step
Claims (1)
気拡散紙、撥水膜、空気極、セパレータを順に位置さ
せ、封口パッキングを周縁部に嵌合させた封口板に電解
液と活物質である亜鉛を充填し、前記ケース開口部に封
口板を挿入して封口した空気ボタン電池であって、正極
ケースの底部内側の周縁部に段部を設け、前記段部上に
空気拡散紙の周縁部を載置し、空気拡散紙と正極ケース
の底部内側面との間に空隙層を構成してなる空気ボタン
電池。1. An air diffusion paper, a water repellent film, an air electrode, and a separator are sequentially placed in a positive electrode case having an air hole at the bottom, and an electrolyte solution and an electrolyte solution are applied to a sealing plate fitted with a sealing packing at the peripheral portion. An air button battery which is filled with zinc which is a substance, and which is sealed by inserting a sealing plate into the opening of the case, wherein a step portion is provided at a peripheral portion inside the bottom of the positive electrode case, and an air diffusion paper is provided on the step portion. The air button battery, which has a peripheral portion thereof placed thereon and forms a void layer between the air diffusion paper and the inner surface of the bottom portion of the positive electrode case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9222292A JPH05217605A (en) | 1992-02-07 | 1992-02-07 | Button type air cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9222292A JPH05217605A (en) | 1992-02-07 | 1992-02-07 | Button type air cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05217605A true JPH05217605A (en) | 1993-08-27 |
Family
ID=12078677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9222292A Pending JPH05217605A (en) | 1992-02-07 | 1992-02-07 | Button type air cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05217605A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5795667A (en) * | 1995-05-05 | 1998-08-18 | Rayovac Corporation | Metal-air cathode can, and electrochemical cell made therewith |
| US6040074A (en) * | 1995-05-05 | 2000-03-21 | Rayovac Corporation | Metal-air cathode can, and electrochemical cell made therewith |
| US6197445B1 (en) | 1998-03-06 | 2001-03-06 | Rayovac Corporation | Air depolarized electrochemical cells |
| WO2001069698A1 (en) * | 2000-03-10 | 2001-09-20 | Eveready Battery Company, Inc. | Increased volume electrochemical cell |
| EP1498977A1 (en) * | 2002-04-17 | 2005-01-19 | Matsushita Electric Industrial Co., Ltd. | Alkaline storage battery |
| WO2008051508A2 (en) * | 2006-10-23 | 2008-05-02 | Eveready Battery Company, Inc. | Electrochemical air cell batteries with air flow channels |
| WO2023059107A1 (en) * | 2021-10-07 | 2023-04-13 | 주식회사 엘지에너지솔루션 | Button-type secondary battery |
-
1992
- 1992-02-07 JP JP9222292A patent/JPH05217605A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6284400B1 (en) | 1995-05-05 | 2001-09-04 | Rayovac Corporation | Metal-air cathode can, and electrochemical cell made therewith |
| US5958615A (en) * | 1995-05-05 | 1999-09-28 | Rayovac Corporation | Metal-air cathode can, and electrochemical cell made therewith |
| US6040074A (en) * | 1995-05-05 | 2000-03-21 | Rayovac Corporation | Metal-air cathode can, and electrochemical cell made therewith |
| US5795667A (en) * | 1995-05-05 | 1998-08-18 | Rayovac Corporation | Metal-air cathode can, and electrochemical cell made therewith |
| US6436571B1 (en) | 1998-03-06 | 2002-08-20 | Rayovac Corporation | Bottom seals in air depolarized electrochemical cells |
| US6197445B1 (en) | 1998-03-06 | 2001-03-06 | Rayovac Corporation | Air depolarized electrochemical cells |
| WO2001069698A1 (en) * | 2000-03-10 | 2001-09-20 | Eveready Battery Company, Inc. | Increased volume electrochemical cell |
| US6759162B2 (en) | 2000-03-10 | 2004-07-06 | Eveready Battery Company, Inc. | Increased volume electrochemical cell |
| EP1498977A1 (en) * | 2002-04-17 | 2005-01-19 | Matsushita Electric Industrial Co., Ltd. | Alkaline storage battery |
| EP1498977A4 (en) * | 2002-04-17 | 2009-11-25 | Panasonic Corp | Alkaline storage battery |
| WO2008051508A2 (en) * | 2006-10-23 | 2008-05-02 | Eveready Battery Company, Inc. | Electrochemical air cell batteries with air flow channels |
| WO2008051508A3 (en) * | 2006-10-23 | 2008-07-31 | Eveready Battery Inc | Electrochemical air cell batteries with air flow channels |
| WO2023059107A1 (en) * | 2021-10-07 | 2023-04-13 | 주식회사 엘지에너지솔루션 | Button-type secondary battery |
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