JPH08153499A - Alkaline battery - Google Patents

Abstract

PURPOSE: To improve liquid leakage resistance by arranging a derivative made of carbamic acid on at least one of a can, a cover, a collector or a gasket of a battery container. CONSTITUTION: A negative electrode can 1 is immersed in strong alkali liquid, and organic matters on the front surface are sufficiently removed by applying ultrasonic vibration, and then the can is made to have noble hydrochloric acid, and the copper front surface is made into the glossy state. Diphenylcarbadize is deposited on the copper front surface by immersing the can in acetone solution of diphenylcarbadize as a derivative made of carbamic acid and drying it after water washing. A battery is manufactured by the can 1, to which diphenylcarbadize is directly applied. Diphenylcarbadize is made contained in asphalt and epoxy resin and arranged as a sealant in the clearance 9 between the can 1 and a gasket 8. Therefore, liquid leakage resistance for an alkaline battery can be drastically improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in alkaline batteries such as silver oxide batteries, manganese dioxide batteries and air batteries which use an alkaline electrolyte.

[0002]

2. Description of the Related Art Alkaline batteries include cylinder type and button type. For example, in the button type alkaline battery as shown in FIG. 1, the gasket 8, the negative electrode can 1 and the positive electrode can 6 are fitted to each other to form a positive electrode mixture 7, a negative electrode mixture 2, an electrolytic electrode impregnating material 4, a separator 5, and a hydroxide. The basic configuration is to fill an alkaline electrolyte solution mainly containing sodium (NaOH) or potassium hydroxide (KOH).

Conventionally, in such an alkaline battery, the alkaline electrolyte leaks out from the peripheral portion of the gasket, especially from the contact surface between the negative electrode can (lid) and the gasket during use in precision instruments such as watches, pagers and mobile phones. There was a case to do. This cause is generally considered to be due to the following electrochemical phenomenon. (1) The copper surface provided as a current collector in the negative electrode can is oxidized to increase the potential difference from the negative electrode active material. (2) As a result, the alkaline electrolyte in the battery moves,
Crawls along the peripheral portion of the gasket, particularly along the contact surface between the negative electrode can and the gasket, and locally concentrates. (3) If the sealing ability between the negative electrode can and the gasket is poor,
The alkaline electrolyte easily leaks.

Therefore, in order to improve the sealing performance, the gasket shape is improved (Japanese Patent Publication No. 6303/1993), the folded portion of the negative electrode can is improved (Japanese Patent Laid-Open No. 62/642, Sho 62), and the copper surface of the negative electrode can is improved. Arrangement of sealing materials (Japanese Patent Publication No. 58, 41627)
No.), an alkylthiol having an aliphatic hydrocarbon on the inner surface of the negative electrode can (JP-A-5678066), a benzotriazole (JP-B-49701), and a functional group containing no carbon. A film of triazine thiol (Japanese Patent Publication No. 55219/1986) was formed. However, sufficient leak resistance was not obtained even by these methods.

[0005]

Even with the conventional method, it is difficult to completely prevent the creeping phenomenon (creep phenomenon) of the alkaline electrolyte over time. Currently, due to the demand for smaller and thinner electronic devices and high-power batteries, it is strongly required to make the battery lid and can thinner, and improving the conventional negative electrode can and gasket alone has a limit in preventing leakage of alkaline electrolyte. there were.

Leakage of an alkaline battery is likely to occur between the copper and the gasket of the negative electrode current collector. It is said that this is because the potential difference between the metal serving as the current collector and the negative electrode active material is large, and the electrolytic driving force causes the electrolytic solution to move to cause leakage. When mercury-free zinc is used, internal pressure increases due to gas generation from the internal collector and zinc, and liquid leakage easily occurs. If the metal oxide film on the surface of the current collector is thick, liquid leakage tends to occur more easily.

Therefore, in order to stop the leakage, in order to improve these causes, it is necessary to combine the measures against each cause. Therefore, the present invention has been focused on the following points. (1) Improvement of sealing material (2) The negative electrode current collector itself is made water-repellent to prevent the alkaline electrolyte from rising. (3) The water repellent agent prevents the current collector from oxidizing. (4) To improve the adhesiveness between the sealing material and the current collector.

[0008]

In order to solve the above problems, the following contents are used alone or in combination. (1) Improvement of sealing material Chlorosulfonated polystyrene was used as a new sealing material. It is said that a film mainly containing a glycidyl ether type epoxy resin, preferably a bisphenol A type epoxy resin is formed as a thin film having a thickness of about 20 to 80 nm on the contact surface between the negative electrode can or the folded part of the negative electrode can and the gasket. Used in a new way. Further, the post-treatment of the film with a reagent that completes the curing reaction is highly effective. (2) The negative electrode can current collector itself is made water-repellent to prevent the alkaline electrolyte from rising. A derivative of carbamic acid was provided and used. (3) Prevent oxidation of the current collector. A derivative of carbamic acid was provided and used. (4) To improve the adhesiveness between the sealing material and the current collector. A derivative of carbamic acid was provided and used.

[0009]

The chlorosulfonated polyethylene, which is the sealing material of the present invention, has good alkali resistance and is flexible,
It has the ability to well fill fine irregularities on the surface of a can, a lid or a current collector or a plastic gasket, and to prevent the invasion of alkaline liquid. Chlorosulfonated polystyrene containing diphenylcarbazide and the like has better adhesion to the copper of the negative electrode can and has the property of repelling the alkaline solution, so that it further suppresses the invasion of the alkaline solution.

Another sealing material of the present invention is a glycidyl ether type epoxy resin. When the surface of the negative electrode can or the contact part of the folded part of the negative electrode can and the gasket is covered and protected with a film mainly containing a glycidyl ether type epoxy resin, preferably a bisphenol A type epoxy resin, the coated surface is Completely shielded from air. For this reason, oxidation and deterioration due to oxygen and moisture in the air are suppressed. If the surface of the negative electrode can is not oxidized or deteriorated, the alkaline electrolyte mainly containing sodium hydroxide or potassium hydroxide that is in contact with the negative electrode can is less likely to be electrochemically reduced. For this reason, since OH-ions are not generated, the alkali concentration does not locally increase and the movement of the alkaline electrolyte due to the concentration difference hardly occurs, so that the creep phenomenon can be suppressed. As a result of various studies, it was found that this sealing material is effective even with an extremely thin film.

For example, the thickness obtained on the entire surface of the negative electrode can by immersing in a solution diluted with a solvent such as toluene is about 20 to 80.
The thin film of the sealing material having a thickness of 3 nm is industrially very excellent because it can be easily formed and does not hinder the electrical contact of the current collector and the contact of the battery. This thin film is
It not only acts as a sealant, but also physically and chemically protects the surface of the negative electrode can.

Further, when the thin film is post-treated with a reagent for completing the curing reaction, the liquid leakage resistance is improved. By this treatment, at least the surface of the thin film is completely cured, and the action of physically and chemically protecting the surface of the negative electrode can is strengthened. Further, when the surface of the thin film is cured, the surface becomes non-sticky, and the handling of the negative electrode can and the like and the supply to the automatic battery assembling apparatus become very easy. Examples of the above-mentioned reagents include amines, polysulfide resins, triazine thiols, alkyl thiols, polymercaptans, carbamic acid derivatives, polyhydric alcohol esters of thiogluconic acid, and imidazoles. The reagent may be a liquid one or may be dissolved in a solution before use.

By disposing a derivative of carbamic acid such as diphenylcarbazide in the sealing portion, it is possible to prevent the alkaline liquid from creeping and entering the sealing portion. Derivatives of carbamic acid such as diphenylcarbazide were provided in the main parts related to sealing such as the fitting portion between the gasket and the can, or the gasket and the current collector.

Carbamic acid derivatives include phenylcarbazide, diphenylcarbazide, phenylcarbazone,
Diphenylcarbazone, phenylthiocarbazide, diphenylthiosemicarbazide, sodium diethyldithiocarbamate, sodium dimethylthiocarbamate,
Although there are various kinds of sodium dibutylthiocarbamate and the like, all have similar characteristics that they are easily bonded to metals such as Cu, Zn, and Hg. Therefore, it acts as a coupling agent because it binds to the metal on the one hand and organic matter such as a sealant on the other hand. Furthermore, it also has water repellency.

A carbamic acid derivative such as diphenylcarbazide may be provided as a single substance by dissolving it in a solution such as acetone on the surface of a can, a current collector, and a gasket and directly applying the solution. Asphalt, epoxy resin, polyamide wax, terpene, polyethylene,
It is also possible to dispose it by incorporating it into a conventional sealing material made of chloroprene, silicone resin, fluororesin or the like, or chlorosulfonated polystyrene of the present invention or a glycidyl ether type epoxy resin. Further, it may be disposed by being contained in a gasket made of nylon, polypropylene, polyethylene or the like. Further, in order to improve the water repellency of the carbamic acid derivative, it is also effective to use it together with a conventional water repellent such as alkylthiol. As described above, as described in the operation, these methods have an effect of reducing leakage regardless of whether they are mercury-containing or silver-free if they are alkaline batteries using zinc.

[0016]

EXAMPLE The following experiment was carried out in order to carry out the present invention on an alkaline battery in which the negative electrode active material is a mercury-containing silver-zinc powder. (Experiment) In order to predict whether or not the water repellent treatment of the copper surface of the negative electrode can has an effect on the leakage of the battery, the following electrolyte crawling test was conducted. In the experiment, a water-repellent treated 1 × 14 cm copper plate was used, and 20 g of mercury-containing zinc powder (lead 5 made by atomizing was used).
30m containing 50ppm of KOH-based electrolytic solution and 00ppm and 10wt% mercury, 80-150mesh)
It was carried out by leaning the inside of the conical beaker of 1 and covering with a lid, and observing the copper surface how the electrolytic solution crawled up from the water surface. The creep height in the figure is the height at which the alkaline liquid creeps up from the liquid surface of KOH to the copper plate. If the speed at which the copper surface crawls is high, the actual battery will easily leak.

The results are shown in FIG. In the figure, A is the one that has been cleaned by alkali and pickling, and B is the one in which a coating film of benzotriazole is attached to A, which is based on the conventional technique. For C, a copper plate was immersed in a strong alkaline solution, ultrasonic vibration was applied to sufficiently remove organic substances on the surface, and then acidified with dilute hydrochloric acid to make the copper surface glossy. Then, after washing with water, it is immersed in an acetone solution of diphenylcarbazide and dried to adhere diphenylcarbazide to the copper surface.

D is a copper plate, which was similarly cleaned, was dipped in an isopropyl alcohol solution of alkylthiol and dried to adhere the alkylthiol to the copper surface. E was obtained by immersing a similarly cleaned copper plate in a mixed solution of an acetone solution of diphenylcarbazide and an alcohol solution of alkylthiol and drying the copper plate.
A mixed film of diphenylcarbazide and alkyl thiol is attached.

The C, D, and E test pieces have strong water repellency with respect to the electrolytic solution. The results show that the coating on the can, lid and current collector of the present invention inhibits creep of the alkaline solution better than with the prior art. (Example 1) The present invention was carried out in an SR626 size silver oxide battery. The components are the negative electrode can 1 (nickel, stainless steel, and copper clad material) shown in FIG. 1, the negative electrode mixture 2 mainly containing mercury-containing zinc powder, the electrolyte impregnating material 4, the separator 5, the positive electrode can (stainless steel to nickel). (Plated) 6, a positive electrode mixture 7 mainly composed of silver oxide, a gasket 66 made of nylon 66, and an alkaline electrolyte solution in which zinc oxide is added to sodium hydroxide near saturation. The contents of the implementation are as follows.

(1) After immersing the negative electrode can in a strong alkaline liquid and applying ultrasonic vibration to sufficiently remove organic substances on the surface,
The copper surface was made glossy by acidifying with dilute hydrochloric acid. Then, after washing with water, diphenylcarbazide was attached to the copper surface by immersing in an acetone solution of diphenylcarbazide and drying. In this way, a battery was produced using a negative electrode can directly coated with diphenylcarbazide (Invention 1). 1 of FIG.
The coating according to the present invention is shown in FIG. Other configurations are the same as the conventional product. (2) The asphalt and the epoxy resin were made to contain diphenylcarbazide, and they were provided as a sealant between the negative electrode can and the gasket (9 in FIG. 1) (Invention 2-1). These products of the present invention were compared and evaluated with batteries of the prior art, and the results shown in Table 1 were obtained below.

[0021]

[Table 1] The evaluation method was the number of leaks after storage in a constant temperature bath of 60 ° C. × 90% Rh for 100 days, and the number of tests was 20 each. In the conventional product, a sealant composed of asphalt and epoxy resin is arranged between the nylon gasket and the negative electrode can 1. Sodium hydroxide was used as the electrolytic solution. Those using diphenylcarbazide were found to be effective against leakage resistance.

The leak-proof effect of diphenylcarbazide, which is a derivative of carbamic acid, was as predicted in the "experiment". Regarding the above, a creep experiment of an alkaline solution was conducted, and it was confirmed in the above-mentioned "experiment" that all of them suppress the creep of the alkaline solution. The derivative of carbamic acid such as diphenylcarbazide need only come into contact with the sealing portion of the can and the current collector, and the sealant acts as a carrier for the derivative of carbamic acid such as diphenylcarbazide. In addition, diphenylcarbazide is
It strongly bonds with the copper on the surface of the current collector, and acts as a coupling agent between the sealant and copper to improve adhesion.

Since potassium hydroxide and sodium hydroxide have similar properties, a derivative of carbamic acid such as diphenylcarbazide can prevent the creep of an alkaline solution and improve the leakage resistance of a KOH battery. it is obvious. Leakage related to the creep phenomenon of alkaline liquid is
Since the same problem applies to other structures such as a tubular shape, suppression of creep has been shown to be effective for all alkaline batteries.

(Example 2) The present invention was carried out by an SR626 size silver oxide battery and compared with a conventional battery. The components are the negative electrode can 1 (nickel, stainless steel, and copper clad material) shown in FIG. 1, the negative electrode mixture 2 mainly containing mercury-containing zinc powder, the electrolyte impregnating material 4, the separator 5, the positive electrode can (stainless steel to nickel). (Plated) 6, a positive electrode mixture 7 mainly composed of silver oxide, a gasket 66 made of nylon 66, and an alkaline electrolyte solution in which zinc oxide is added to sodium hydroxide near saturation. The types of examples are as follows.

(Example 2-1) Chlorosulfonated polystyrene was applied in advance to the portion of the gasket in contact with the lid (negative electrode can), whereby chlorosulfonated polystyrene was provided as a sealant between the gasket and the lid.

(Example 2-2) Chlorosulfonated polystyrene was applied in advance to the portion of the lid (negative electrode can) in contact with the gasket, whereby a sealant made of chlorosulfonated polystyrene was provided between the gasket and the lid. .

(Example 2-3) The lid (negative electrode can) was dipped in a strong alkaline solution and ultrasonically vibrated to sufficiently remove organic substances on the surface, and then acidified with dilute hydrochloric acid to make the copper surface glossy. . Then, after washing with water, the mixed film of diphenylcarbazide and alkylthiol was applied by dipping in a mixed solution of acetone solution of diphenylcarbazide and alcohol solution of alkylthiol and drying. A battery was manufactured using this lid. All other components of the battery and the manufacturing process are the same as the conventional battery.

(Example 2-4) By the same method as in Example 2-3, a composite coating film of diphenylcarbazide and alkylthiol was attached to the lid (negative electrode can). Further, a sealing agent made of chlorosulfonated polystyrene was applied to a portion of the gasket which was in contact with the lid, and the solvent was evaporated to dry the same.
A battery was assembled using this lid and gasket. All other components are the same as in the prior art battery.

(Example 2-5) Using the same method as in Example 2-3, after cleaning the surface of the lid (negative electrode can), a seal made of chlorosulfonated polystyrene containing diphenylcarbazide. The agent was adhered to the folded portion of the lid (negative electrode can) that was in contact with the gasket, and the solvent was evaporated to dry. A battery was manufactured using this lid (negative electrode can). No other sealant was used and all the components except the lid (negative electrode can) were the same as in the prior art battery.

(Example 2-6) After the gasket was degreased and washed, it was immersed in the same solution containing diphenylcarbazide and alkylthiol as described in Example 2-3. Then, the solution was volatilized and dried to form a film of diphenylcarbazide and alkylthiol on the surface of the gasket, and the battery was assembled. Other components are the same as the conventional battery.

(Comparative Conventional Battery) In the conventional battery used for comparison, a small amount of a commonly used rust preventive agent adheres to the surface of the lid (negative electrode can). As the sealing agent, a mixture of asphalt and epoxy was used. The electrolytic solution is a NaOH system. Other battery components are those commonly used. The battery of the above example and the battery of the prior art were stored in a constant temperature bath at a temperature of 60 ° C. and a relative temperature of 90% for 100 days, and then checked for leakage and compared. Number of samples is 2 each
It is 0. The results are shown in Table 2.

[0032]

[Table 2] Although diphenylcarbazide was selected in Examples 1 and 2, phenylcarbazide, phenylcarbazone, diphenylcarbazone, phenylthiocarbazide, diphenylthiosemicarbazone, di, sodium diethyldithiocarbamate, and dimethylthio. It can be selected from a derivative of carbamic acid such as sodium carbamate and sodium dibutylthiocarbamate which easily binds to a metal such as Cu, Zn and Hg.

The carbamic acid derivative or alkyl thiol may be directly formed on the surface of the battery can, lid, current collector, or gasket, but it may also be alfalto, epoxy resin, polyamide wax, terpene, polyethylene, chloroprene, silicone. It is possible to dispose the resin by selecting it from a resin, a fluororesin, an epoxy resin or the like and incorporating it in the sealing material. Further, it may be disposed by being contained in a gasket made of nylon, polypropylene, polyethylene or the like.

(Example 3) (Example 3-1) The present invention was carried out on a silver oxide battery SR626 size. The components are a negative electrode can 1 (a clad material of nickel, stainless steel and copper) shown in FIG. 1, a negative electrode mixture 2 mainly containing mercury-containing zinc powder, an electrolytic solution impregnated material 4, a separator 5,
Positive electrode can (stainless steel plated with nickel)
6, a positive electrode mixture 7 mainly composed of silver oxide, a gasket 8 made of nylon 66, and an alkaline electrolyte solution in which zinc oxide is added to sodium hydroxide or potassium hydroxide near saturation. An epoxy resin film mainly composed of bisphenol A is formed on the folded portion of the negative electrode can and the contact surface 9 of the gasket with a thickness of about 20 to
A 80 μm thin film was formed.

The invention was evaluated comparatively with batteries without coatings and the results in Tables 3 and 4 were obtained. The evaluation method is 60 ° C ×
After maintaining in a 90% Rh constant temperature bath for 100 days, the numbers of leaks were compared. The number of samples is 20 each.

(1) Results of evaluation when the electrolytic solution is sodium hydroxide

[Table 3]

(2) Evaluation results when the electrolytic solution is potassium hydroxide

[Table 4] Thus, the present invention is extremely effective in improving the leak resistance of alkaline batteries.

(Embodiment 3-2) Another embodiment of the present invention will be described. Using the battery of Example 3-1, the bisphenol A type epoxy resin was diluted with toluene, and then a film having a thickness of about 20 to 80 nm was formed on the entire surface 10 of the negative electrode can. The invention was evaluated comparatively with the uncoated battery and the results in Tables 5 and 6 were obtained. The evaluation method is 60 ° C x 90% Rh
The number of liquid leaks was compared after storage in the constant temperature bath for 100 days. The number of samples is 20 each.

(1) Evaluation results when the electrolyte is sodium hydroxide

[Table 5]

(2) Evaluation results when the electrolytic solution is potassium hydroxide

[Table 6] Thus, the present invention is extremely effective in improving the leak resistance of alkaline batteries.

(Embodiment 3-3) Another embodiment of the present invention will be described. Using the battery of Example 3-1, a bisphenol A type epoxy resin was applied to the entire surface 10 of the negative electrode can as follows and dried to form a film having a thickness of about 20 to 80 nm. In the first step, the entire negative electrode can is soaked in a liquid obtained by dissolving the epoxy resin in toluene (1%), and then semi-dried by a drier. In the second step, the negative electrode can is immersed in a solution of thiol (0.03%) dissolved in alcohol and dried by a dryer. The invention was evaluated comparatively with the uncoated battery and the results in Tables 7 and 8 were obtained. Evaluation method is 60 ° C x 9
After storing in a 0% Rh constant temperature bath for 100 days, the numbers of leaks were compared. The number of samples is 20 each.

(1) Evaluation results when the electrolytic solution is sodium hydroxide

[Table 7]

(2) Evaluation results when the electrolytic solution is caustic potash

[Table 8] Thus, the present invention is extremely effective in improving the leak resistance of alkaline batteries.

(Embodiment 3-4) Another embodiment of the present invention will be described. Using the battery of Example 1, a mixed solution of bisphenol A type epoxy resin and diphenylcarbazide was formed on the folded portion of the negative electrode can and the contact surface 9 of the gasket by a transfer method to form a thin film having a thickness of 20 to 80 μm. did. The invention was evaluated comparatively with the uncoated battery and the results in Tables 9 and 10 were obtained.
As an evaluation method, after the samples were stored in a constant temperature bath of 60 ° C. × 90% Rh for 100 days, the numbers of leaks were compared. The number of samples is 20 each.

(1) Evaluation results when the electrolytic solution is sodium hydroxide

[Table 9]

(2) Evaluation results when the electrolytic solution is potassium hydroxide

[Table 10]

Although diphenylcarbazide was particularly selected in the examples, it is possible to select from carbamic acid derivatives such as diphenylcarbazone and diphenylthiocarbazone which are likely to bind to metals such as Cu, Zn and Hg. Thus, the present invention is extremely effective in improving the leak resistance of alkaline batteries.

(Embodiment 4) 1000 pieces of SR626SW size batteries were manufactured and evaluated by combining the techniques of the present invention. Table 11 shows the results of the batteries using mercury-containing zinc although there are some that overlap the battery specifications of Examples 1 to 3.
It was shown to. The mercury-containing zinc used was one containing 500 ppm of lead and having a degree of agitation of 10%.

[0049]

[Table 11] The circles are entered for the technologies used in the table. The evaluation in the rightmost column was made with ×, Δ, ○, and ◎. The level at which there is no problem in practical use was marked with ◯. As for the combination, a combination in which the maximum effect is exhibited due to a trade-off between quality and manufacturing cost may be appropriately selected and used depending on the situation.

[0050]

As described above, according to the present invention, it is possible to greatly improve the leakage resistance of an alkaline battery by a very simple method. Further, according to the film of the present invention,
It is also effective for protecting the surface of the negative electrode can because it shields the air from the surface of the can to prevent contamination. In the examples of the present invention, a silver oxide battery using an alkaline electrolyte was described, but a manganese dioxide battery, an air battery or the like may be used as long as it uses a negative electrode can having copper or a copper alloy as a current collector. Needless to say, also shows the same effect.

[Brief description of drawings]

FIG. 1 is a cross-sectional view around a gasket of a battery of the present invention.

FIG. 2 is a diagram illustrating an effect of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Negative electrode can 2 Negative electrode mixture 3 Folded part of negative electrode can 4 Electrolyte impregnated material 5 Separator 6 Positive electrode can 7 Positive electrode mixture 8 Gasket 9 Negative electrode can-gasket contact surface 10 Film according to the present invention

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[Procedure amendment]

[Submission date] August 22, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 3

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

[Function] The chlorosulfonated poly that is the sealing material of the present invention
Styrene has good alkali resistance, is flexible,
It has the ability to well fill fine irregularities on the surface of a can, a lid or a current collector or a plastic gasket, and to prevent the invasion of alkaline liquid. Chlorosulfonated polystyrene containing diphenylcarbazide and the like has better adhesion to the copper of the negative electrode can and has the property of repelling the alkaline solution, so that it further suppresses the invasion of the alkaline solution.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI technical indication H01M 6/06 C 12/06 A (31) Priority claim number Japanese Patent Application No. 6-233875 (32) Priority Hihei 6 (1994) September 28 (33) Priority claiming country Japan (JP) (72) Inventor Kazuo Wakaishi 5-30-1 Nishitaga, Taihaku-ku, Sendai-shi, Miyagi Seiko Electronic Components Co., Ltd. (72 ) Inventor Nobuyoshi Takahashi 5-30-1, Nishitaga, Taihaku-ku, Sendai-shi, Miyagi, Seiko Electronic Components Co., Ltd. (72) Inventor Toyoo Hayasaka 5-30-1, Nishitaga, Taihaku-ku, Sendai City, Miyagi Prefecture Seiko Electronic Components Co., Ltd.

Claims (9)

[Claims] 1. An alkaline battery in which a carbamic acid derivative is provided in at least one of a can, a lid, a current collector, and a gasket of a battery container. 2. An alkaline battery, wherein a film containing a derivative of carbamic acid is provided on at least one of a can, a lid, a current collector and a gasket of a battery container. 3. The coating film is one or more sealing materials selected from polyamide wax, terpene, polyethylene, asphalt, chlorosulfonated polyethylene, chloroprene, silicone resin, fluororesin and epoxy resin. Alkaline battery described 4. An alkaline battery characterized in that at least one of a can, a lid, a current collector, and a gasket of a battery container is provided with chlorosulfonated polystyrene or a film containing the chlorosulfonated polystyrene. 5. The alkaline battery according to claim 2, wherein the film is chlorosulfonated polystyrene. 6. A general formula wherein at least one of a can, a lid, a current collector, and a gasket of a battery container has a curing agent of one or more substances selected from acid anhydrides, polyamides, dicyandiamide, and dicyandiamide derivatives. ] Alkaline battery characterized by arranging a thin film obtained by diluting the glycidyl ether type epoxy resin with an organic solvent, applying and drying the same. 7. A thin film formed by diluting an organic solvent with a glycidyl ether type epoxy resin containing one or more substances selected from acid anhydride, polyamide, dicyandiamide, and dicyandiamide derivative as a curing agent, and drying the film. The alkaline battery according to claim 2, wherein 8. The alkaline battery according to claim 6, wherein the thin film containing the glycidyl ether type epoxy resin as a main component is treated with a reagent that completes a curing reaction. 9. A glycidyl ether type epoxy resin is represented by the general formula: 9. The alkaline battery according to claim 6, which is a bisphenol A type epoxy resin.