JP2006134636A - Zinc air battery and its battery case - Google Patents
Zinc air battery and its battery case Download PDFInfo
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- JP2006134636A JP2006134636A JP2004320389A JP2004320389A JP2006134636A JP 2006134636 A JP2006134636 A JP 2006134636A JP 2004320389 A JP2004320389 A JP 2004320389A JP 2004320389 A JP2004320389 A JP 2004320389A JP 2006134636 A JP2006134636 A JP 2006134636A
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title abstract description 12
- 239000011701 zinc Substances 0.000 title abstract description 9
- 229910052725 zinc Inorganic materials 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 22
- 230000006866 deterioration Effects 0.000 claims abstract description 20
- 229920002379 silicone rubber Polymers 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 230000002940 repellent Effects 0.000 description 5
- 239000005871 repellent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 239000008151 electrolyte solution Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- UAYWVJHJZHQCIE-UHFFFAOYSA-L zinc iodide Chemical compound I[Zn]I UAYWVJHJZHQCIE-UHFFFAOYSA-L 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 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
Abstract
Description
本発明は、空気電池の未使用時に外気と電池をできるだけ遮断し、使用環境の温度湿度の変化による影響を防止するようにした空気電池とその電池ケースに関する。 The present invention relates to an air battery and a battery case for the air battery, in which the outside air and the battery are blocked as much as possible when the air battery is not used, and the influence of changes in temperature and humidity in the usage environment is prevented.
空気電池は単位体積当たりの容量が大きいことから、特に空気亜鉛電池が補聴器用やペイジャー用として使用されてきている。
近年、空気電池の高出力化への要望が高まり、重負荷でも放電可能な電池の開発が進められ、主に正極側への酸素供給量の向上により、かかる要望に応えている。
Since an air battery has a large capacity per unit volume, an air zinc battery has been used particularly for hearing aids and pagers.
In recent years, there has been an increasing demand for higher output of air batteries, and development of batteries capable of discharging even under heavy loads has been promoted, and this demand has been met mainly by improving the amount of oxygen supplied to the positive electrode side.
しかしながら、空気電池は正極に大気中の酸素を使用するため、これを取り入れる空気孔を持つことから、外気の温度，湿度と、電池内の電解液との飽和蒸気圧の関係によって、相対的に外気の湿度が高くなれば電解液は水分を吸収して増加し、漏液や短寿命を引き起こす恐れがあり、逆に湿度が低くなれば電解液は減少して短寿命を引き起こす恐れがある。これらは放置劣化と呼ばれている。 However, since the air battery uses oxygen in the atmosphere as the positive electrode, it has an air hole for taking it in. Therefore, depending on the relationship between the temperature and humidity of the outside air and the saturated vapor pressure of the electrolyte in the battery, If the humidity of the outside air increases, the electrolyte solution absorbs moisture and increases, which may cause leakage and a short life. Conversely, if the humidity decreases, the electrolyte solution may decrease and cause a short life. These are called neglected deterioration.
そこで、特許文献１に開示しているように、機器の電源スイッチの開閉と連動して、空気電池の空気孔を開閉する方法が提案されているが、開閉手段を付加する分、収納ケースが大きくなってしまうという欠点があった。また開閉手段によっては密閉性が十分でなく、空気電池の劣化防止という効果が十分に得られない場合があった。
上記のような放置劣化を評価する尺度として、放置劣化率が用いられる。この放置劣化率は、一定の温度湿度において、空気孔を塞いでいるシールテープや電池を密閉する袋を除いてから、直後に放電した場合に得られる持続時間を１００％として、同一の温度湿度において一定期間放置した後に放電した場合に得られる持続時間が直後に比較して何％となるかを表わすものである。 The neglected deterioration rate is used as a scale for evaluating the neglected deterioration as described above. This neglected deterioration rate is the same temperature / humidity at a constant temperature / humidity, assuming that the duration obtained when the battery is discharged immediately after removing the sealing tape that seals the air holes and the bag for sealing the battery is 100%. Represents the percentage of the duration obtained when the battery is discharged after being left for a certain period of time compared to immediately after.
本発明は、ＰＲ２３３０タイプの電池を２０℃−６０％ＲＨにおいて１００Ωで放電して得られた持続時間を１００％として、同じく３ヶ月間２０℃−６０％ＲＨにおいてシールテープを剥離した状態で放置した後に１００Ωで放電した時に得られる持続時間の劣化率で表わし、これを評価する。 In the present invention, a PR2330 type battery was discharged at 100Ω at 20 ° C.-60% RH for 100%, and left for 3 months at 20 ° C.-60% RH with the sealing tape peeled off. Then, it is expressed by the deterioration rate of the duration obtained when discharging at 100Ω, and this is evaluated.
従来技術では、電池として使用される機器と、その使用環境を予測して電池設計するため、必要な出力から電池内への酸素の供給量を設計し、これと予想される使用環境から電解液の量、濃度、負極活物質との配合について設計することが一般的であった。 In the conventional technology, in order to design a battery by predicting the equipment used as a battery and its use environment, the oxygen supply amount into the battery is designed from the required output, and the electrolyte is determined from the expected use environment. In general, the amount, concentration, and composition of the negative electrode active material are designed.
また、電池を利用する側でも、長期に使用しない場合は言うに及ばず、毎日使用する場合でも夜間使用しないときは電池を取り出してシールテープを貼ったり、袋に入れるなどして空気孔を密閉し、劣化を抑えることが一般的であった。 Also, even if the battery is used, not to mention that it will not be used for a long period of time, and even if it is used every day, if it is not used at night, take out the battery and put a seal tape or put it in a bag to seal the air hole. However, it has been common to suppress degradation.
本発明が解決しようとする課題は、このような煩わしさを防ぎ、あるいは、空気電池が持つ設計上の制約条件を、電池を使用する機器側、もしくは電池をセットする電池ホルダーや電池ケースなどの電池周辺部の設計によって回避し、空気電池の放置劣化をできるだけ防いで、より多種広範囲の機器で使用可能な空気電池を提供することにある。 The problem to be solved by the present invention is to prevent such annoyance, or to restrict the design constraints of the air battery to the equipment using the battery, or to the battery holder or battery case where the battery is set. An object of the present invention is to provide an air battery that can be used in a wider variety of devices by avoiding the deterioration of the air battery as much as possible by avoiding it by designing the battery periphery.
上記課題を解決するために、本発明は、酸素を正極、酸素より卑なる物質を負極として、該酸素を取り入れる空気孔をアウターカンに持つ空気電池において、空気孔またはその空気孔の周辺部を、ＪＩＳ Ａ硬度が２０以上９０以下となる材料で押えることによって外気と空気孔を遮断し、外気の影響による劣化を防止する。 In order to solve the above-described problems, the present invention provides an air battery having an air hole in which an oxygen is taken as a positive electrode, a substance lower than oxygen as a negative electrode, and an air hole for taking in the oxygen in an outer can. , By pressing with a material having a JIS A hardness of 20 or more and 90 or less, the outside air and the air hole are blocked, and deterioration due to the influence of the outside air is prevented.
該材料の形状は、リング形状と平面形状を組み合わせて、外気と空気孔を遮断する時に空気孔の周辺に空間を持っていることが好ましく、この場合リング形状の材料のみが本発明の条件を満たしていれば良い。 The shape of the material is preferably a combination of a ring shape and a planar shape, and preferably has a space around the air hole when blocking the outside air and the air hole. In this case, only the ring-shaped material satisfies the conditions of the present invention. It only has to satisfy.
ところで、電池ホルダーや電池ケースなどの電池周辺部の設計において、空気電池の状態には、使用時の酸素を積極的に供給させる状態と、未使用時の外気を遮断する状態がある。 By the way, in the design of battery peripheral parts such as a battery holder and a battery case, there are two states of the air battery: a state in which oxygen is actively supplied and a state in which outside air is not used when not in use.
本発明では、未使用時の電池の状態で、必要十分な条件とするが、実用上では使用時の状態を考慮する必要があって、該材料の形状はリング形状と平面形状を組み合わせて、外気と空気孔を遮断する時に空気孔の周辺に空間を持たせて、使用時の空気拡散を十分行えるようにすることが好ましい。 In the present invention, it is necessary and sufficient conditions in the state of the battery when not in use, but in practice it is necessary to consider the state during use, the shape of the material is a combination of a ring shape and a planar shape, It is preferable that a space is provided around the air hole when the outside air and the air hole are blocked so that the air can be sufficiently diffused during use.
従って、未使用時の電池の状態のみを勘案すれば、材料の形状は何でも良く、平板で空気孔とその周辺を全て塞いでもよいし、突起形状の先端をもって空気孔だけを塞いでも良い。
すなわち、本発明においては、空気孔を塞ぐ方法の一つとして、柔軟性のある材料を用いることにより、できるだけ確実に空気孔と外気を遮断させるものである。
Therefore, if only the state of the battery when not in use is taken into consideration, the shape of the material may be any, and the air hole and its surroundings may be closed with a flat plate, or only the air hole may be closed with a protruding tip.
That is, in the present invention, as one method for closing the air holes, the air holes and the outside air are blocked as reliably as possible by using a flexible material.
また、本発明ではシリコンゴム製のリングを使用しているが、必ずしもこれに限定されるものではない。代表的な材料としてシリコンゴムを用いた理由は、同材料の硬度が、一般的に電池が使用される温度範囲の−１０℃から８０℃の間で少なくとも±１０％に収まる程度に安定していることと、その絶縁性が良いからである。 Further, in the present invention, a silicon rubber ring is used, but the present invention is not necessarily limited thereto. The reason why silicon rubber is used as a representative material is that the hardness of the material is stable so that the hardness falls within at least ± 10% in a temperature range of −10 ° C. to 80 ° C. where the battery is generally used. This is because the insulation is good.
また、本発明は、柔軟性すなわち弾性を持つ材料で空気孔を塞ぐことであり、その代表的として硬度を規定しているが、これ以外に材料の中を中空にするなどして、必要な柔軟性を確保しているものでも、本発明と同一と見なすことができる。 Further, the present invention is to seal the air holes with a material having flexibility, that is, elasticity, and the hardness is stipulated as a typical example. Even if flexibility is ensured, it can be regarded as the same as the present invention.
本発明の空気電池によると、通常の単なる放置に比較して放置劣化率を小さく改善することができるので、空気電池の適用される範囲を多種広範囲の機器に広げることが可能になる。 According to the air battery of the present invention, it is possible to improve the neglected deterioration rate as compared with ordinary mere neglect, so that the range to which the air battery is applied can be extended to a wide variety of devices.
以下、本発明の実施の形態を、図を参照して説明する。
図１は、本発明に係る代表的な空気亜鉛電池のＰＲ２３３０（直径φ２３、総高３ｍｍ）の断面図であり、その構成は、正極に大気中の酸素を取り入れる空気孔２を有する正極ケース１と、負極に集電と封口を兼ねる負極ケース１１と、そのケース１１内に亜鉛粉と電解液の苛性カリ水溶液によるゲル負極１０とから構成され、正極ケース１と負極ケース１１とはガスケット１２を介してカシメられ密封口されている。また、空気孔２はシールテープ１３を貼り付けられて塞がれている。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view of a PR2330 (diameter φ23,
同空気亜鉛電池は、電解液に３０重量％の苛性カリ水溶液を用い、亜鉛には１％の水銀と５００ｐｐｍの鉛を合金として含み、かつ、粒度が１００〜３００μｍの汞化亜鉛粉を用い、この電解液と亜鉛粉の重量比を亜鉛粉１ｋｇに対して電解液２５０ｇとした。そして、これらの材料とポリアクリル酸をゲル化剤として、共に混合し、ゲル負極１０とした。
The air zinc battery uses a 30% by weight caustic potash aqueous solution as an electrolyte, zinc contains 1% mercury and 500 ppm lead as an alloy, and uses zinc iodide powder having a particle size of 100 to 300 μm. The weight ratio of the electrolytic solution to zinc powder was 250 g of electrolytic solution with respect to 1 kg of zinc powder. And these materials and polyacrylic acid were mixed together as a gelling agent, and it was set as the gel
一方、正極側は、底面にφ０．５ｍｍの空気孔２を６個有し、さらに底面の外周部から連続する側面を持った正極ケース、すなわちアウターカン１と、その内部にＰＴＦＥ膜からなる撥水膜８と酸素還元電極およびセパレータ７が載置されている。酸素還元電極は活性炭、マンガン酸化物、導電材、ＰＴＦＥ粉からなる正極触媒粉をシート状に成形した正極触媒層６をニッケルメッキされたステンレスネット製の正極集電体５に圧着充填することにより一体化され、更に、撥水膜８とは別のＰＴＦＥ膜がセパレータ７と反対面に圧着して撥水層４を形成している。３は拡散紙であり、空気孔２を覆うようにアウターカン１の内側に載せられており、アウターカン１は拡散紙３の径に合わせて、底面で絞り込んでいる。このため、アウターカン１は電池底面で段差を持ち、電池の最外径はφ２３ｍｍであるが、拡散紙３付近のアウターカン１の段部外径はφ２０ｍｍであり、段部厚さは０．１ｍｍである。
On the other hand, on the positive electrode side, a positive electrode case having six
図２は本発明で使用した治具の断面図、図３はこれら治具とＰＲ２３３０のアウターカン１の底面部、およびその配置を示すものである。
図２に示すように、本発明で使用する治具はシリコンゴムリング２０上に塩化ビニル板２１が貼り付けられている。この治具を空気電池のシールテープ１３に貼り付けて図１の空気電池のシールテープ１３側から見ると、図３のように空気孔２はシールテープ１３と塩化ビニル板２１で外気と遮断されることになる。
FIG. 2 is a cross-sectional view of the jig used in the present invention, and FIG. 3 shows the jig, the bottom portion of the
As shown in FIG. 2, a jig used in the present invention has a
以下、実施例、従来例及び比較例について具体的に説明する。
（従来例１）
ＰＲ２３３０を［従来の技術］の項に示す通りｎ＝１０を２０℃−６０％ＲＨに３ヶ月間放置し、その後１００Ωで放電して、放置前の持続時間を１００％としてその劣化率を計算した。電池はアウターカンの空気孔が下になるように平地に設置して放置した。平地の材質は塩化ビニルを用いた。
（従来例２）
電池の空気孔を上にして、従来例１と同様に放置した。
Examples, conventional examples, and comparative examples will be specifically described below.
(Conventional example 1)
As shown in [Prior Art] for PR2330, leave n = 10 at 20 ° C.-60% RH for 3 months, then discharge at 100Ω, and calculate the deterioration rate with the duration before leaving as 100%. did. The battery was placed on a flat ground with the air hole of the outer can facing down and left to stand. The material of the flat ground was vinyl chloride.
(Conventional example 2)
The battery was left as in Conventional Example 1 with the air hole of the battery facing up.
（比較例１）
電池の空気孔を上にして、電池底面の空気孔の周辺に厚さ０．５ｍｍ、外径φ２０、内径φ１６、硬度１１０のシリコンゴム製リングを置き、その上にφ２５、厚さ０．５ｍｍの塩化ビニル製の板を置いて、従来例１と同様に放置した。
(Comparative Example 1)
With the air hole of the battery facing up, a silicon rubber ring with a thickness of 0.5 mm, an outer diameter of φ20, an inner diameter of φ16, and a hardness of 110 is placed around the air hole at the bottom of the battery, and φ25 and a thickness of 0.5 mm are placed on it. A plate made of vinyl chloride was placed and left in the same manner as in Conventional Example 1.
（比較例２）
電池の空気孔を上にして、電池底面の空気孔の周辺に厚さ０．５ｍｍ、外径φ２０、内径φ１６、硬度１０のシリコンゴム製のリングを置き、その上にφ２５、厚さ０．５ｍｍの塩化ビニル製の板を置いて、従来例１と同様に放置した。
(Comparative Example 2)
A ring made of silicon rubber having a thickness of 0.5 mm, an outer diameter of φ20, an inner diameter of φ16, and a hardness of 10 is placed around the air hole at the bottom of the battery with the air hole of the battery facing up, and φ25 having a thickness of 0. A 5 mm vinyl chloride plate was placed and left as in Conventional Example 1.
（比較例３）
電池の空気孔を上にして、電池底面の空気孔の周辺に厚さ１．５ｍｍ、外径φ２０、内径φ１６、硬度５０のシリコンゴム製のリングを置き、その上にφ２５、厚さ０．５ｍｍの塩化ビニル製の板を置いて、従来例１と同様に放置した。
(Comparative Example 3)
A ring made of silicon rubber having a thickness of 1.5 mm, an outer diameter of φ20, an inner diameter of φ16, and a hardness of 50 is placed around the air hole on the bottom surface of the battery with the air hole of the battery facing up, and φ25 having a thickness of 0. A 5 mm vinyl chloride plate was placed and left as in Conventional Example 1.
（実施例１）
電池の空気孔を上にして、電池底面の空気孔の周辺に厚さ０．５ｍｍ、外径φ２０、内径φ１６、硬度９０のシリコンゴム製のリングを置き、その上にφ２５、厚さ０．５ｍｍの塩化ビニル製の板を置いて、従来例１と同様に放置した。
Example 1
A ring made of silicon rubber having a thickness of 0.5 mm, an outer diameter of φ20, an inner diameter of φ16, and a hardness of 90 is placed around the air hole on the bottom of the battery with the air hole of the battery facing up, and φ25 having a thickness of 0. A 5 mm vinyl chloride plate was placed and left as in Conventional Example 1.
（実施例２）
電池の空気孔を上にして、電池底面の空気孔の周辺に厚さ０．５ｍｍ、外径φ２０、内径φ１６、硬度５０のシリコンゴム製のリングを置き、その上にφ２５、厚さ０．５ｍｍの塩化ビニル製の板を置いて、従来例１と同様に放置した。
(Example 2)
A ring made of silicon rubber having a thickness of 0.5 mm, an outer diameter of φ20, an inner diameter of φ16, and a hardness of 50 is placed around the air hole on the bottom of the battery with the air hole of the battery facing up, and φ25 having a thickness of 0.1 mm. A 5 mm vinyl chloride plate was placed and left as in Conventional Example 1.
（実施例３）
電池の空気孔を上にして、電池底面の空気孔の周辺に厚さ０．５ｍｍ、外径φ２０、内径φ１６、硬度２０のシリコンゴム製のリングを置き、その上にφ２５、厚さ０．５ｍｍの塩化ビニル製の板を置いて、従来例１と同様に放置した。
(Example 3)
A ring made of silicon rubber having a thickness of 0.5 mm, an outer diameter of φ20, an inner diameter of φ16, and a hardness of 20 is placed around the air hole on the bottom surface of the battery with the air hole of the battery facing up, and φ25 and a thickness of 0. A 5 mm vinyl chloride plate was placed and left as in Conventional Example 1.
（実施例４）
電池の空気孔を上にして、電池底面の空気孔の周辺に厚さ０．０５ｍｍ、外径φ２０、内径φ１６、硬度５０のシリコンゴム製のリングを置き、その上にφ２５、厚さ０．５ｍｍの塩化ビニル製の板を置いて、従来例１と同様に放置した。
Example 4
A ring made of silicon rubber having a thickness of 0.05 mm, an outer diameter of φ20, an inner diameter of φ16, and a hardness of 50 is placed around the air hole on the bottom surface of the battery with the air hole of the battery facing up, and φ25 and a thickness of 0. A 5 mm vinyl chloride plate was placed and left as in Conventional Example 1.
（実施例５）
電池の空気孔を上にして、電池底面の空気孔の周辺に厚さ１ｍｍ、外径φ２０、内径φ１６、硬度５０のシリコンゴム製のリングを置き、その上にφ２５、厚さ０．５ｍｍの塩化ビニル製の板を置いて、従来例１と同様に放置した。
(Example 5)
A ring made of silicon rubber having a thickness of 1 mm, an outer diameter of φ20, an inner diameter of φ16, and a hardness of 50 is placed around the air hole on the bottom surface of the battery with the air hole of the battery facing up, and a diameter of 25 mm and a thickness of 0.5 mm is placed thereon. A vinyl chloride plate was placed and left as in Conventional Example 1.
以上の結果を表１にまとめて示した。
なお、放置試験前のＰＲ２３３０、１００Ω放電の持続時間はｎ＝１０の平均で８１時間であった。劣化率（Ｙ）は放置の結果得られた持続時間を（Ｘ）として、（Ｙ）＝（８１−Ｘ）÷８１×１００：％で計算した。
The above results are summarized in Table 1.
In addition, the duration of PR2330 and 100Ω discharge before the standing test was 81 hours on the average of n = 10. The deterioration rate (Y) was calculated as (Y) = (81−X) ÷ 81 × 100:%, where (X) was the duration obtained as a result of leaving.
表１の結果から、実施例１〜５は従来例１〜２、比較例１〜３に比較して、劣化率が明らかに改善されている。また、実施例の中では硬度の小さいもの、厚さの薄いものほど劣化率が小さいことからリングと電池底部の密着が良好なほど、空気孔の上の空間が小さいほど劣化率が小さくなると考えられる。
しかしながら、電池底部の形状は完全な平面ではなく、僅かに凸凹があるため、従来例１が示すとおり、完全平面な材料を置いても劣化はそれほど小さくならない。
From the results in Table 1, the deterioration rates of Examples 1 to 5 are clearly improved as compared with Conventional Examples 1 and 2 and Comparative Examples 1 to 3. Also, in the examples, the smaller the hardness and the thinner the thickness, the smaller the degradation rate. Therefore, the better the adhesion between the ring and the battery bottom, the smaller the space above the air holes, the smaller the degradation rate. It is done.
However, since the shape of the bottom of the battery is not a perfect plane and has a slight unevenness, as shown in Conventional Example 1, even if a completely planar material is placed, the deterioration is not so small.
また、比較例１や比較例２から、硬度が大きくなったり、リングの厚さが大きくなることにより、リングが変形しづらくなって、外気を十分に遮断できなくなっていると考えられる。比較例３でも劣化率が大きくなっているが、これはリングの硬度が小さく、リングを電池に配置するにあたり、リングの横方向への変形が大きく、リングが空気孔の全てを覆うことができなかったためであり、他の例とは全く別の理由であるとともに、実用上も使用が困難であると考えられる。 Further, from Comparative Example 1 and Comparative Example 2, it is considered that the hardness is increased and the thickness of the ring is increased, so that the ring is not easily deformed and the outside air cannot be sufficiently blocked. Although the deterioration rate is also large in Comparative Example 3, this is because the hardness of the ring is small, and when the ring is placed in the battery, the ring is deformed in the lateral direction so that the ring can cover all of the air holes. This is because it was not, for a completely different reason from the other examples, and considered to be difficult to use in practice.
１…正極ケース、２…空気孔、３…拡散紙、４…第１の撥水層、５…集電体、６…正極触媒層、７…セパレータ、８…第２の撥水層、１０…ゲル負極、１１…負極ケース、１２…ガスケット、１３…シールテープ、２０…シリコンゴムリング、２１…塩化ビニル板。
DESCRIPTION OF
Claims (10)
A battery case, wherein the air battery according to claim 1 is stored in the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004320389A JP2006134636A (en) | 2004-11-04 | 2004-11-04 | Zinc air battery and its battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004320389A JP2006134636A (en) | 2004-11-04 | 2004-11-04 | Zinc air battery and its battery case |
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| Publication Number | Publication Date |
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| JP2006134636A true JP2006134636A (en) | 2006-05-25 |
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| JP2004320389A Withdrawn JP2006134636A (en) | 2004-11-04 | 2004-11-04 | Zinc air battery and its battery case |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9343786B2 (en) | 2012-12-10 | 2016-05-17 | Samsung Electronics Co., Ltd. | Electrochemical device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9343786B2 (en) | 2012-12-10 | 2016-05-17 | Samsung Electronics Co., Ltd. | Electrochemical device |
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