JPH1173949A - Air zinc battery - Google Patents
Air zinc batteryInfo
- Publication number
- JPH1173949A JPH1173949A JP23390997A JP23390997A JPH1173949A JP H1173949 A JPH1173949 A JP H1173949A JP 23390997 A JP23390997 A JP 23390997A JP 23390997 A JP23390997 A JP 23390997A JP H1173949 A JPH1173949 A JP H1173949A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- zinc
- discharge
- gelled
- battery
- 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.)
- Granted
Links
Classifications
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- Y02E60/128—
Landscapes
- Hybrid Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は空気亜鉛電池の高容
量化に関する。[0001] The present invention relates to increasing the capacity of zinc-air batteries.
【０００２】[0002]
【従来の技術】亜鉛を負極作用物質とし、空気中の酸素
を正極作用物質とする空気亜鉛電池は、通常の電池に比
べ、正極作用物質を電池内に詰め込む必要がないため
に、負極作用物質である亜鉛をより多く詰め込むことが
可能で、アルカリマンガン電池や酸化銀電池に比較して
大容量が得られるという特徴があり、需要が拡大してき
ている。2. Description of the Related Art An air zinc battery using zinc as a negative electrode active material and oxygen in the air as a positive electrode active material does not require the positive electrode active material to be packed in a battery as compared with a normal battery. It is characterized by the fact that it is possible to pack a larger amount of zinc, and it is possible to obtain a larger capacity as compared with alkaline manganese batteries and silver oxide batteries, and the demand is expanding.
【０００３】また、空気亜鉛電池は、環境問題が提起さ
れた水銀電池と互換性があるので、その代替とされてお
り、その主用途である補聴器に使用されている。そして
電池交換の頻度をより少なくすることが望まれており、
近年一層高容量化の要望が高まっている。[0003] Zinc air batteries are interchangeable with mercury batteries that have raised environmental concerns, and are therefore being used as alternatives, and are being used in hearing aids, which are their primary use. And it is desired to reduce the frequency of battery replacement,
In recent years, demands for higher capacity have been increasing.
【０００４】[0004]
【発明が解決しようとする課題】ところで、空気亜鉛電
池を高容量化するためには、ゲル状亜鉛負極の放電利用
率を向上させるか、あるいは作用物質としての亜鉛をよ
り多く充填して理論的な容量を増やす必要がある。By the way, in order to increase the capacity of the zinc-air battery, the discharge utilization rate of the gelled zinc negative electrode is improved, or the zinc as an active substance is filled more to theoretically increase the capacity. It is necessary to increase the capacity.
【０００５】しかしながら、正極作用物質を充填しなく
ともよいとはいえ、内容積には限界があるので、亜鉛の
増量には限界がある。また、亜鉛は放電反応後に反応生
成物となって体積が膨張するために、内容積一杯までに
ゲル状亜鉛負極を充填すると、過放電状態になったとき
に、膨張した負極生成物によってアルカリ電解液が押し
出され、空気孔から漏液するという問題がある。[0005] However, although it is not necessary to fill the positive electrode active substance, there is a limit in the internal volume, so there is a limit in increasing the amount of zinc. In addition, since zinc becomes a reaction product after the discharge reaction and expands in volume, when the gelled zinc negative electrode is filled to the full internal volume, when overdischarged, the expanded negative electrode product causes alkaline electrolysis. There is a problem that the liquid is pushed out and leaks from the air hole.
【０００６】充填するゲル状亜鉛負極の体積を増やさず
に亜鉛量を増やすためには、アルカリ電解液を減らし、
亜鉛を増やしたゲル状亜鉛負極の配合組成にすればよい
が、アルカリ電解液量が減少すると、亜鉛の放電利用率
が悪化する傾向にあり、亜鉛を増加した分だけ高容量化
を実現するのは困難である。In order to increase the amount of zinc without increasing the volume of the gelled zinc negative electrode to be filled, the amount of alkaline electrolyte must be reduced,
The composition of the gelled zinc negative electrode with increased zinc may be used.However, when the amount of the alkaline electrolyte decreases, the discharge utilization rate of zinc tends to deteriorate, and a higher capacity is achieved by increasing the amount of zinc. It is difficult.
【０００７】逆に、亜鉛の放電利用率の向上のために
は、アルカリ電解液比率のより高いゲル状亜鉛負極を使
用することが考えられるが、もともと空気亜鉛電池の亜
鉛の放電利用率は９０％以上もあり、放電利用率の向上
による大幅な高容量化は望めない。さらにアルカリ電解
液を増やした分、一定容積に充填される亜鉛量は減少す
るので、結果的に高容量化は達成できない。本発明は、
このような問題を解決するためになされたもので、その
目的は、過放電後の漏液を生ずることなく空気亜鉛電池
をより高容量化することにある。On the other hand, in order to improve the discharge utilization rate of zinc, it is conceivable to use a gelled zinc negative electrode having a higher alkaline electrolyte ratio. %, It is not possible to expect a large increase in capacity due to an improvement in discharge utilization. Further, as the amount of the alkaline electrolyte is increased, the amount of zinc filled in a certain volume is reduced, so that a high capacity cannot be achieved as a result. The present invention
The purpose of the present invention is to solve such a problem, and an object thereof is to increase the capacity of an air zinc battery without causing leakage after overdischarge.
【０００８】[0008]
【課題を解決するための手段】この目的を達成するた
め、本研究者らが鋭意研究の結果、ゲル状亜鉛負極の配
合組成、負極容積に対するゲル状亜鉛負極体積の充填率
を適正化することにより、過放電後の漏液が生ずること
なく、より高容量化を達成することができることがわか
った。Means for Solving the Problems To achieve this object, the present inventors have assiduously studied to optimize the composition of the gelled zinc negative electrode and the filling ratio of the gelled zinc negative electrode volume to the negative electrode volume. As a result, it was found that a higher capacity could be achieved without liquid leakage after overdischarge.
【０００９】すなわち、本発明は、空気中の酸素を正極
作用物質とし、負極集電体を兼ねた負極容器に亜鉛合金
粉，アルカリ電解液，及びゲル化剤で構成されたゲル状
亜鉛負極を有する空気亜鉛電池において、前記ゲル状亜
鉛負極の配合組成が亜鉛合金粉１００重量部に対してア
ルカリ電解液が２０〜２５重量部であり、且つ負極容積
に対する前記ゲル状亜鉛負極の充填率が８５〜９０％で
あることを特徴とする。That is, the present invention provides a gelled zinc negative electrode composed of zinc alloy powder, an alkaline electrolyte, and a gelling agent in a negative electrode container which also uses oxygen in the air as a positive electrode active material and also functions as a negative electrode current collector. In the air-zinc battery, the composition of the gelled zinc negative electrode is 20 to 25 parts by weight of the alkaline electrolyte with respect to 100 parts by weight of the zinc alloy powder, and the filling ratio of the gelled zinc negative electrode to the negative electrode volume is 85%. ９０90%.
【００１０】従来の空気亜鉛電池では、ゲル状亜鉛負極
の配合組成は亜鉛合金粉１００重量部に対してアルカリ
電解液が２５〜３０重量部程度が普通であるが、これ以
上亜鉛合金粉の配合比率を増やしアルカリ電解液を減ら
すと、亜鉛の放電利用率が低下してしまう。これに対し
本発明の空気亜鉛電池では、ゲル状亜鉛負極の配合組成
が亜鉛合金粉１００重量部に対してアルカリ電解液が２
０〜２５重量部であるが、ゲル状亜鉛負極体積の充填率
を８５〜９０％とすることで、放電利用率の低下が最小
に防げることがわかった。In a conventional zinc-air battery, the composition of the gelled zinc negative electrode is usually about 25 to 30 parts by weight of the alkaline electrolyte with respect to 100 parts by weight of the zinc alloy powder. When the ratio is increased and the alkaline electrolyte is reduced, the discharge utilization rate of zinc decreases. On the other hand, in the air zinc battery of the present invention, the composition of the gelled zinc negative electrode was such that the alkaline electrolyte was 2 parts per 100 parts by weight of zinc alloy powder.
Although it is 0 to 25 parts by weight, it has been found that by setting the filling rate of the gelled zinc negative electrode volume to 85 to 90%, a decrease in the discharge utilization rate can be prevented to a minimum.
【００１１】すなわち、このようなゲル状亜鉛負極の充
填率であれば、ゲル状亜鉛負極と負極集電体やセパレー
タとの接触が最適になり、放電利用率を良好に保てる。
ゲル状亜鉛負極の充填率が８５％未満であると前述の接
触が悪化し、放電利用率も低下してしまう。９０％以上
になると放電中に正極触媒を圧迫して放電に悪影響を及
ぼす。That is, with such a filling rate of the gelled zinc negative electrode, the contact between the gelled zinc negative electrode and the negative electrode current collector or the separator is optimized, and the discharge utilization can be kept good.
When the filling rate of the gelled zinc negative electrode is less than 85%, the above-mentioned contact is deteriorated, and the discharge utilization rate is also reduced. If it is 90% or more, the positive electrode catalyst is pressed during the discharge, which adversely affects the discharge.
【００１２】また、過放電後の漏液の発生は、ゲル状亜
鉛負極の配合組成及び充填率と密接に関係しており、ア
ルカリ電解液の比率が高いゲル状亜鉛負極ほど同じ充填
率でも漏液が発生し易くなる。そして放電生成物の体積
が負極内容積に占める比率Ｍ（占拠率、％）は次式
（１）で求められ、これを１１０％程度以下にするのが
よい。本発明のゲル状亜鉛負極の配合組成及び充填率の
範囲であれば、占拠率Ｍは１１２％以下となり、漏液は
発生しない。この点からもゲル状亜鉛負極の配合組成及
び充填率は、本発明の範囲が妥当である。Further, the occurrence of liquid leakage after overdischarge is closely related to the composition and filling rate of the gelled zinc negative electrode. A liquid is easily generated. Then, the ratio M (occupation ratio,%) of the volume of the discharge product to the internal volume of the negative electrode is obtained by the following equation (1), and it is preferable to set this to about 110% or less. Within the range of the composition and the filling rate of the gelled zinc negative electrode of the present invention, the occupation ratio M is 112% or less, and no liquid leakage occurs. From this point of view, the composition of the gelled zinc negative electrode and the filling rate are within the scope of the present invention.
【００１３】[0013]
【数１】 (Equation 1)
【００１４】なお、Ｇａは次の式から求めた。 Ｇａ＝［放電に利用された亜鉛の体積］×０．５８７ ０．５８７は、放電利用率が一番良い電流密度（ｍＡ／
ｍｍ2 ）で放電し、放電生成物が酸化亜鉛になると仮定
したときの、放電後亜鉛の体積増加率で、 亜鉛：比重７．１４，原子量６５．３ 酸化亜鉛：比重５．６，分子量８１．３ を用いて次式のように計算した。 ０．５８７＝［（８１．３／５．６）／（６５．３／
７．１４）］−１＝１．５８７−１Incidentally, Ga was obtained from the following equation. Ga = [volume of zinc used for discharge] × 0.587 0.587 is the current density (mA /
mm 2 ) and the volume increase rate of zinc after discharge, assuming that the discharge product is zinc oxide, zinc: specific gravity 7.14, atomic weight 65.3 zinc oxide: specific gravity 5.6, molecular weight 81 , And was calculated as follows. 0.587 = [(81.3 / 5.6) / (65.3 /
7.14)]-1 = 1.587-1
【００１５】[0015]
（ゲル状亜鉛負極の調製）ゲル状亜鉛負極は、亜鉛合金
粉，アルカリ電解液及びゲル化剤としてのポリアクリル
酸で構成される。亜鉛合金粉とアルカリ電解液の配合組
成は、表１に示すように、亜鉛合金粉１００重量部に対
して、３０ｗｔ％水酸化カリウム水溶液を３２．５，３
０．０，２７．５，２５．０，２２．５，２０．０及び
１７．５重量部の７種類とした。ゲル状亜鉛負極は、ま
ず亜鉛合金粉とポリアクリル酸（３０ｗｔ％水酸化カリ
ウム水溶液１００重量部に対して１．６重量部）をドラ
イ撹拌し、その後水酸化カリウム水溶液と共にウェット
撹拌して調製した。また、７種類のゲル状亜鉛負極の比
重を、亜鉛合金粉の比重７．１４と、３０ｗｔ％水酸化
カリウム水溶液の比重１．２９とを用いて算出し、表１
に示した。(Preparation of Gelled Zinc Negative Electrode) The gelled zinc negative electrode is composed of zinc alloy powder, an alkaline electrolyte and polyacrylic acid as a gelling agent. As shown in Table 1, the composition of the zinc alloy powder and the alkaline electrolyte was as follows.
There were seven types, 0.0, 27.5, 25.0, 22.5, 20.0 and 17.5 parts by weight. The gelled zinc negative electrode was prepared by first dry-stirring zinc alloy powder and polyacrylic acid (1.6 parts by weight with respect to 100 parts by weight of a 30 wt% aqueous solution of potassium hydroxide), and then wet-stirring with an aqueous solution of potassium hydroxide. . The specific gravities of the seven types of gelled zinc negative electrodes were calculated using the specific gravity of the zinc alloy powder, 7.14, and the specific gravity of the 30 wt% aqueous potassium hydroxide solution, 1.29.
It was shown to.
【００１６】[0016]
【表１】 [Table 1]
【００１７】（実施例１〜６）配合組成として、亜鉛合
金粉１００重量部に対して、３０ｗｔ％水酸化カリウム
水溶液を２５．０，２２．５及び２０．０重量部の３種
類のゲル状亜鉛負極を使用し、ゲル状亜鉛負極の充填率
を８５及び９０％として、図１に示すようなＰＲ４４型
空気亜鉛電池を作製した。(Examples 1 to 6) As a composition, three types of gels of 25.0, 22.5 and 20.0 parts by weight of a 30 wt% aqueous potassium hydroxide solution with respect to 100 parts by weight of zinc alloy powder were used. Using a zinc negative electrode, the filling rate of the gelled zinc negative electrode was set to 85 and 90% to produce a PR44 type air zinc battery as shown in FIG.
【００１８】図１において、１は負極集電体、２はゲル
状亜鉛負極、３はセパレータ、４はパッキング、５は正
極触媒、６は正極缶、７はテフロン膜、８は空気拡散
紙、９は空気孔、１０は絶縁シートである。In FIG. 1, 1 is a negative electrode current collector, 2 is a gelled zinc negative electrode, 3 is a separator, 4 is a packing, 5 is a positive electrode catalyst, 6 is a positive electrode can, 7 is a Teflon film, 8 is air diffusion paper, 9 is an air hole, 10 is an insulating sheet.
【００１９】ゲル状亜鉛負極の充填率は、次のようにし
てゲル状亜鉛負極の重量で調整した。まず電池の形状寸
法より負極内容積３０７μｌを算出し、各々の充填率８
５及び９０％に対応する体積を求め、次にそれらの体積
を各々３種類のゲル状亜鉛負極の比重を用いて重量に換
算した。The filling rate of the gelled zinc negative electrode was adjusted by the weight of the gelled zinc negative electrode as follows. First, a negative electrode internal volume of 307 μl was calculated from the shape and dimensions of the battery.
Volumes corresponding to 5 and 90% were determined, and then these volumes were converted to weights using the specific gravities of the three gelled zinc negative electrodes, respectively.
【００２０】このとき正極触媒は、マンガン酸化物，活
性炭及びテフロン粉末を混合撹拌して得られた正極合剤
をシート状に圧延し、片面にニッケルメッキしたステン
レスネットを、他面にテフロン膜をそれぞれ圧着して得
られた。また、パッキングはナイロン製パッキングを使
用した。At this time, as the positive electrode catalyst, a positive electrode mixture obtained by mixing and stirring manganese oxide, activated carbon and Teflon powder is rolled into a sheet, and a stainless steel net plated with nickel on one side and a Teflon film on the other side. Each was obtained by crimping. The packing used was nylon packing.
【００２１】負極ケースを兼ねた負極集電体はニッケル
−ステンレス−銅の３層クラッド材を成形加工して使用
した。正極ケースは、鉄材を成形加工した後にニッケル
メッキを施して使用した。The negative electrode current collector also serving as the negative electrode case was formed by processing a three-layered clad material of nickel-stainless-copper. The positive electrode case was used by forming an iron material and then performing nickel plating.
【００２２】（比較例１〜２２）実施例と同様にして、
配合組成が、亜鉛合金粉１００重量部に対して、３０ｗ
ｔ％水酸化カリウム水溶液を３２．５，３０．０，２
７．５，２５．０，２２．５，２０．０及び１７．５重
量部の７種類のゲル状亜鉛負極を使用し、ゲル状亜鉛負
極の充填率を８０，８５，９０及び９５％として、図１
に示すようなＰＲ４４型空気亜鉛電池を作製した。ま
た、ゲル状亜鉛負極の充填率は、実施例と同様にゲル状
亜鉛負極の重量で調整した。(Comparative Examples 1 to 22)
The composition is 30 w / 100 parts by weight of zinc alloy powder.
32.5, 30.0, 2
Using 7.5, 25.0, 22.5, 20.0 and 17.5 parts by weight of seven kinds of gelled zinc negative electrodes, and filling rates of the gelled zinc negative electrodes are 80, 85, 90 and 95%. , FIG.
The PR44 type zinc-air battery shown in FIG. The filling rate of the gelled zinc negative electrode was adjusted by the weight of the gelled zinc negative electrode in the same manner as in the example.
【００２３】（評価）上記実施例及び比較例の電池の各
２０個について、６２０Ω及び２５０Ωの連続放電試験
を行った。６２０Ω連続放電は、ＰＲ４４型空気亜鉛電
池では、正負極の対向面積に対して０．０２５ｍＡ／ｍ
ｍ2 程度の放電になり放電利用率が比較的良い条件であ
る。２５０Ω連続放電は、０．０５ｍＡ／ｍｍ2 程度の
比較的重負荷の放電である。表１に結果を示す。各数値
は、２０個の電池の平均値である。(Evaluation) Continuous discharge tests of 620 Ω and 250 Ω were performed on each of the 20 batteries of the above Examples and Comparative Examples. In the PR44 type zinc-air battery, the 620Ω continuous discharge is 0.025 mA / m
This is a condition where the discharge is about m 2 and the discharge utilization rate is relatively good. The 250Ω continuous discharge is a discharge with a relatively heavy load of about 0.05 mA / mm 2 . Table 1 shows the results. Each numerical value is an average value of 20 batteries.
【００２４】次に、実施例及び比較例の電池各２０個を
２５℃−８５％ＲＨの環境下において、６２０Ωで５０
０時間放電し、過放電後の空気孔からの漏液を目視調査
した。ＰＲ４４型空気亜鉛電池の６２０Ω連続放電は、
２００〜３５０時間程度で放電が終わるので、１．５〜
２．５倍程度の過放電である。空気亜鉛電池では、過放
電により負極内容物が膨張したときに空気孔からアルカ
リ電解液が押し出されて漏液することがあり、２５℃−
８５％ＲＨのように高湿の環境下では特に漏液しやすく
なる。結果を表１に示す。各数値は、電池２０個中の漏
液した電池の個数である。Next, in the environment of 25 ° C. and 85% RH, 50 batteries at 620 Ω
Discharge was performed for 0 hour, and liquid leakage from the air hole after overdischarge was visually inspected. 620Ω continuous discharge of PR44 type zinc-air battery is
Since the discharge is completed in about 200 to 350 hours, 1.5 to
The overdischarge is about 2.5 times. In the case of a zinc-air battery, when the content of the negative electrode expands due to overdischarge, the alkaline electrolyte may be extruded from the air holes and leak, and the temperature may be reduced to 25 ° C.
In a highly humid environment such as 85% RH, liquid leakage is particularly likely. Table 1 shows the results. Each numerical value is the number of leaked batteries among the 20 batteries.
【００２５】この表から明らかなように、ゲル状亜鉛負
極の配合組成に関わらず、充填率が８５％から８０％に
減少すると放電利用率が大きく低下し高容量化できな
い。充填率が８５％から９０％に増加すると、本発明の
場合は過放電後の漏液特性は悪くならないが、比較例の
場合は漏液特性が悪化する。配合組成が亜鉛合金粉１０
０重量部に対してアルカリ電解液が３２．５，３０．
０，２７．５及び１７．５重量部のゲル状亜鉛負極の場
合は、充填率を８５及び９０％にしても高容量化と過放
電後の漏液特性の両方を満足させるものはない。As is clear from this table, regardless of the composition of the gelled zinc negative electrode, when the filling rate is reduced from 85% to 80%, the discharge utilization rate is greatly reduced and the capacity cannot be increased. When the filling rate increases from 85% to 90%, in the case of the present invention, the liquid leakage characteristics after overdischarge do not deteriorate, but in the case of the comparative example, the liquid leakage characteristics deteriorate. The composition is zinc alloy powder 10
0 parts by weight of the alkaline electrolyte was 32.5, 30.
In the case of 0, 27.5 and 17.5 parts by weight of the gelled zinc negative electrode, none of them satisfy both the high capacity and the liquid leakage characteristics after overdischarge even if the filling rate is 85 and 90%.
【００２６】以上のように、ゲル状亜鉛負極の配合組成
が、亜鉛合金粉１００重量部に対してアルカリ電解液２
０〜２５重量部であり、電池の負極容積に対してゲル状
亜鉛負極体積の充填率が８５〜９０％である本発明品
は、従来の空気亜鉛電池に比較して、高容量化すること
ができ、且つ過放電後の漏液の危険性もない。As described above, the composition of the gelled zinc negative electrode is such that the alkaline electrolyte 2
The product of the present invention, which has a filling rate of 85 to 90% of the volume of the gelled zinc negative electrode with respect to the negative electrode volume of the battery, has a higher capacity than a conventional air zinc battery. And there is no danger of liquid leakage after overdischarge.
【００２７】なお、本発明は上記実施例により限定され
るものではなく、本発明に直接影響を及ぼさない、亜鉛
合金粉，ゲル化剤，電解液濃度，正極触媒等の要素につ
いては本発明の範囲を逸脱しない限り、変更して差支え
ない。It should be noted that the present invention is not limited to the above-described embodiment, and elements that do not directly affect the present invention, such as zinc alloy powder, gelling agent, electrolyte concentration, and positive electrode catalyst, are described in the present invention. Changes can be made without departing from the scope.
【００２８】[0028]
【発明の効果】以上説明したように、本発明によれば、
従来の空気亜鉛電池に比較して、高容量化され、且つ過
放電漏液の危険性もない電池を提供することができる。As described above, according to the present invention,
It is possible to provide a battery which has a higher capacity than the conventional zinc-air battery and has no risk of over-discharge leakage.
【図１】本発明の一実施例であるＰＲ４４型空気亜鉛電
池の断面図。FIG. 1 is a sectional view of a PR44 type zinc-air battery according to one embodiment of the present invention.
１…負極集電体、２…ゲル状亜鉛負極、３…セパレー
タ、４…パッキング、５…正極触媒、６…正極缶、７…
テフロン膜、８…空気拡散紙、９…空気孔、１０…絶縁
シート。DESCRIPTION OF SYMBOLS 1 ... Negative electrode current collector, 2 ... Gel zinc negative electrode, 3 ... Separator, 4 ... Packing, 5 ... Positive catalyst, 6 ... Positive electrode can, 7 ...
Teflon film, 8: air diffusion paper, 9: air hole, 10: insulating sheet.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 川口 正夫 東京都品川区南品川三丁目４番10号 東芝 電池株式会社内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Masao Kawaguchi 3-4-10 Minamishinagawa, Shinagawa-ku, Tokyo Toshiba Battery Corporation
Claims (1)
集電体を兼ねた負極容器に亜鉛合金粉，アルカリ電解
液，及びゲル化剤で構成されたゲル状亜鉛負極を有する
空気亜鉛電池において、前記ゲル状亜鉛負極の配合組成
が亜鉛合金粉１００重量部に対してアルカリ電解液が２
０〜２５重量部であり、且つ負極容積に対する前記ゲル
状亜鉛負極の充填率が８５〜９０％であることを特徴と
する空気亜鉛電池。1. An air-zinc battery having a gelled zinc negative electrode composed of zinc alloy powder, an alkaline electrolyte, and a gelling agent in a negative electrode container also serving as a negative electrode current collector using oxygen in the air as a positive electrode active material. In the above, the composition of the gelled zinc negative electrode is such that the alkaline electrolyte is 2 parts by weight per 100 parts by weight of the zinc alloy powder.
0 to 25 parts by weight, and the filling rate of the gelled zinc negative electrode with respect to the negative electrode volume is 85 to 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23390997A JP3647218B2 (en) | 1997-08-29 | 1997-08-29 | Air zinc battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23390997A JP3647218B2 (en) | 1997-08-29 | 1997-08-29 | Air zinc battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1173949A true JPH1173949A (en) | 1999-03-16 |
| JP3647218B2 JP3647218B2 (en) | 2005-05-11 |
Family
ID=16962495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23390997A Expired - Fee Related JP3647218B2 (en) | 1997-08-29 | 1997-08-29 | Air zinc battery |
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| Country | Link |
|---|---|
| JP (1) | JP3647218B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003521100A (en) * | 2000-01-25 | 2003-07-08 | ザ ジレット カンパニー | Zinc / air battery |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070224495A1 (en) | 2006-03-22 | 2007-09-27 | Gibbons Daniel W | Zinc/air cell |
| US20070224500A1 (en) | 2006-03-22 | 2007-09-27 | White Leo J | Zinc/air cell |
| GB202110221D0 (en) * | 2021-07-15 | 2021-09-01 | Lina Energy Ltd | Electrochemical cell |
-
1997
- 1997-08-29 JP JP23390997A patent/JP3647218B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003521100A (en) * | 2000-01-25 | 2003-07-08 | ザ ジレット カンパニー | Zinc / air battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3647218B2 (en) | 2005-05-11 |
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