JPS63175344A - Manufacture of silver oxide battery - Google Patents
Manufacture of silver oxide batteryInfo
- Publication number
- JPS63175344A JPS63175344A JP62008503A JP850387A JPS63175344A JP S63175344 A JPS63175344 A JP S63175344A JP 62008503 A JP62008503 A JP 62008503A JP 850387 A JP850387 A JP 850387A JP S63175344 A JPS63175344 A JP S63175344A
- Authority
- JP
- Japan
- Prior art keywords
- silver oxide
- positive electrode
- sprayed
- electric capacity
- 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.)
- Pending
Links
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910001923 silver oxide Inorganic materials 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- 239000004584 polyacrylic acid Substances 0.000 claims description 4
- 229920003169 water-soluble polymer Polymers 0.000 claims description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 229920002845 Poly(methacrylic acid) Polymers 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052709 silver Inorganic materials 0.000 abstract description 6
- 239000004332 silver Substances 0.000 abstract description 6
- 238000007664 blowing Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 abstract description 4
- 239000007921 spray Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000011247 coating layer Substances 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229920002521 macromolecule Polymers 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 5
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- IPCXNCATNBAPKW-UHFFFAOYSA-N zinc;hydrate Chemical compound O.[Zn] IPCXNCATNBAPKW-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/54—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of silver
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、酸化銀電池の正極活物質の製造法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for producing a positive electrode active material for a silver oxide battery.
従来の技術
酸化銀電池は、時計用などの電子機器の電源として広く
利用されている。特にＩＣ，ＬＳＩの集積回路技術の進
歩によシ、消費電流の低下から、。BACKGROUND OF THE INVENTION Silver oxide batteries are widely used as power sources for electronic devices such as watches. In particular, advances in IC and LSI integrated circuit technology have resulted in lower current consumption.
より小形、薄形化が要望され、それに伴い高電気容量化
が要望されている。There is a demand for smaller and thinner devices, and along with this, there is a demand for higher electric capacity.
この高電気容量化の方法として、正極体の電導助剤とし
て、嵩密度の低いリン状黒鉛あるいは人造黒鉛のかわり
に以下の様な提案がなされている。As a method for increasing the electric capacity, the following proposals have been made to replace phosphorous graphite or artificial graphite, which have a low bulk density, as a conductive aid for the positive electrode body.
すなわち顆粒状酸化銀を還元して粒子の表面上に金属銀
層を形成したものを加圧成型して、正極活物質として構
成することによって、その金属銀層のネットワークを利
用して電導性を保つ方法である。In other words, granular silver oxide is reduced to form a metallic silver layer on the surface of the particles, which is then pressure-molded and constituted as a positive electrode active material.The network of the metallic silver layer is used to improve conductivity. This is the way to keep it.
この方法を採れば、黒鉛を混合した正極体に比べ、約１
．１倍の高電気容量化が図れる。If this method is adopted, compared to a positive electrode mixed with graphite, approximately 1
．． The electric capacity can be increased by 1 times.
発明が解決しようとする問題点
しかし従来の方法においては、高電気容量化は図れたが
、正極合剤の粉末をマスキリ法で秤量し、加圧成型し正
極ペレットを作ると、特に薄形電池においては、割れや
すいという問題があった。Problems to be Solved by the Invention However, in the conventional method, it was possible to achieve a high electric capacity, but when the positive electrode mixture powder was weighed and pressure-molded using the Maskilli method to make positive electrode pellets, it was difficult to achieve a high electric capacity, especially in thin batteries. However, there was a problem that it was easy to break.
本発明は、上記の様な問題点を解消し、高電気容重の正
極体を用いて、薄形で成型性にすぐれた酸化銀電池を提
供することを目的とする。An object of the present invention is to solve the above-mentioned problems and provide a thin silver oxide battery with excellent moldability using a positive electrode body with high electric capacity.
問題点を解決するための手段
この問題点を解決するため本発明は、顆粒状酸化銀の粒
子表面を還元した後に水溶性高分子で表面をコーティン
グした正極合剤を使用するものである。Means for Solving the Problem In order to solve this problem, the present invention uses a positive electrode mixture in which the surface of granular silver oxide particles is reduced and then coated with a water-soluble polymer.
作 用
この構成によれば、水波性高分子のコーティングにより
、特に薄形電池の成型性を向上させることができる。Effect: According to this configuration, the moldability of thin batteries can be particularly improved by coating with the water-waveable polymer.
実施例 以下、本発明の実施例を示す。Example Examples of the present invention will be shown below.
第１図は、本発明による直径９−５１１１ｍ ｓ高さ１
．２６胴の酸化銀電池５Ｒ９１２ＳＷを示す。Figure 1 shows the diameter 9-5111 m s height 1 according to the present invention.
．． A 26-cylinder silver oxide battery 5R912SW is shown.
図中２は本発明による正極合剤であり、顆粒状酸化銀粒
子の表面を還元性溶液で還元した後に、表面をポリアク
リル酸ナトリウムでコーティングした。その後加圧成型
して正極プレットにし、正極ケース１内に正極リング３
とともに挿入して加圧成型する。2 in the figure is a positive electrode mixture according to the present invention, in which the surface of granular silver oxide particles was reduced with a reducing solution, and then the surface was coated with sodium polyacrylate. After that, it is pressure-molded into a positive electrode pellet, and the positive electrode ring 3 is placed inside the positive electrode case 1.
Insert and pressure mold together.
そして加圧成型した正極に水酸化す） ＩＪウム電解液
を注液した後、ポリエチレンからなる微孔性フィルムと
セロファンからなるセパレータ４と、ナイロン不織布、
あるいはセルロースやコツトン等から成る含浸材６を打
ち抜いて正極ケース内に挿入する。さらに、その上に水
化亜鉛粉末とゲル化剤としてポリアクリル酸ナトリウム
よりなるゲル状亜鉛負極７を封口板８に保持させて配置
し、封口リング６を介して正極ケースの周縁を締つける
ことで構成した。After injecting the IJium electrolyte into the pressure-molded positive electrode, a separator 4 made of a microporous film made of polyethylene, a separator 4 made of cellophane, a nylon nonwoven fabric,
Alternatively, the impregnated material 6 made of cellulose, cotton, etc. is punched out and inserted into the positive electrode case. Further, a gelled zinc negative electrode 7 made of zinc hydrate powder and sodium polyacrylate as a gelling agent is placed thereon and held by a sealing plate 8, and the periphery of the positive electrode case is tightened via a sealing ring 6. It was composed of
このような構成の電池において、正極合剤２は、顆粒状
酸化銀の粒子の表面を還元性溶液を用いて還元する際に
、加温した流動空気中で流動状態にし、流動状態にした
酸化銀に還元性溶液を噴霧して表面を還元し、同時に乾
燥を行い顆粒状酸化銀粒子の表面に金属銀層を形成させ
る。その後、流動状態で、水溶液高分子溶液を噴霧し、
表面にコーティングし乾燥する。In a battery having such a configuration, the positive electrode mixture 2 is brought into a fluidized state in heated fluidized air when the surface of the granular silver oxide particles is reduced using a reducing solution, and the A reducing solution is sprayed onto the silver to reduce the surface, and at the same time drying is performed to form a metallic silver layer on the surface of the granular silver oxide particles. After that, the aqueous polymer solution is sprayed in a fluid state,
Coat the surface and dry.
以下、本発明の特徴とする正極活物質の製造法について
詳細に説明する。第２図に示す流動槽９内に顆粒状酸化
銀を投入し、槽下部の吹き込み口１０より乾燥した加熱
空気を吹きこんで上方に吹き上げ、顆粒状酸化銀全攪拌
する。一方これとは別にあらかじめ、ヒドラジン等の還
元性溶液を酸化銀の還元量が１〜６重量パーセントとな
るように秤量し、メチルアルコール等の溶媒で希釈した
ヒドラジン等の還元性溶液１１を１２に示すノズルより
流動槽内にスプレー状に噴霧する。スプレー状に噴霧さ
れた還元性溶液は、流動槽内で乾燥した加熱空気により
攪拌されている顆粒状酸化銀の表面と接触し、その表面
層を還元して顆粒状酸化銀の表面は金属銀化する。次に
同様に、ポリアクリル酸等のコーテイング液１４をノズ
ルより流動槽内にスプレー状に噴霧し、表面をコーティ
ングする。流動槽内では、あらかじめ乾燥した空気が吹
き上げられているため、還元反応、コーティングの工程
と同時に乾燥が行なわれる。Hereinafter, a method for producing a positive electrode active material, which is a feature of the present invention, will be explained in detail. Granular silver oxide is placed in a fluidized tank 9 shown in FIG. 2, and dry heated air is blown upward from the blowing port 10 at the bottom of the tank to completely stir the granular silver oxide. On the other hand, separately from this, a reducing solution such as hydrazine is weighed in advance so that the reduction amount of silver oxide is 1 to 6% by weight, and reducing solution 11 such as hydrazine diluted with a solvent such as methyl alcohol is added to 12. Spray into the fluidized tank from the nozzle shown. The sprayed reducing solution comes into contact with the surface of the granular silver oxide which is being stirred by dry heated air in the fluidized tank, reducing the surface layer and turning the surface of the granular silver oxide into metallic silver. become Next, similarly, a coating liquid 14 such as polyacrylic acid is sprayed from a nozzle into the fluidized tank to coat the surface. In the fluidized tank, dry air is blown up in advance, so drying is performed simultaneously with the reduction reaction and coating process.
なお１３は排気口である。Note that 13 is an exhaust port.
顆粒状酸化銀の還元量については、種々の検討を行なっ
たが、電池としての優れた内部抵抗や閉路電圧特性を得
るためには、少なくとも酸化銀総重量の１重量パーセン
ト以上還元する必要があり、逆に６重量パーセントを超
す還元量を施すと、活物質としての酸化銀の有効添加量
を減少させることになり不利である。Various studies have been conducted regarding the amount of reduction of granular silver oxide, but in order to obtain excellent internal resistance and closed circuit voltage characteristics as a battery, it is necessary to reduce at least 1% by weight of the total weight of silver oxide. On the other hand, if the amount of reduction exceeds 6% by weight, it is disadvantageous because the effective amount of silver oxide added as an active material decreases.
又、水溶性高分子のコーテイング量は、種々の検討を行
なったが、薄形電池の成型性より、少なくとも、酸化銀
総量の０．１重量パーセント以上必要であり、逆に１重
量パーセント未満では、成型性は問題ないが電池として
の内部抵抗が高くなった。Furthermore, various studies have been conducted regarding the amount of water-soluble polymer coating, but from the viewpoint of moldability of thin batteries, it is necessary to use at least 0.1% by weight of the total amount of silver oxide, and conversely, less than 1% by weight is required. Although there was no problem with moldability, the internal resistance as a battery increased.
ここで用いた本発明の製造法による正極の構成条件は、
次の通りである。The configuration conditions of the positive electrode according to the manufacturing method of the present invention used here are as follows:
It is as follows.
１ 還元量・・・・・・酸化銀総量の４重量パーセント
２ コーティング剤・・・・・・ポリアクリル酸ナトリ
ウム３ コーテイング量・・・・・・酸化銀総量の０．
６重量パーセント
以上の構成条件で製造した電池と従来例との成型性の比
較を、正極合剤の粉末をマスキリ法で秤量し加圧成型し
た時の、ペレット時の割れ数で比べた。なお測定数は各
ｎ ＝ ３００であり、その結果は第１表の通りであっ
た。1 Reduction amount: 4% by weight of the total amount of silver oxide 2 Coating agent: Sodium polyacrylate 3 Coating amount: 0% of the total amount of silver oxide.
The moldability of a battery manufactured under conditions of 6 weight percent or more and a conventional example was compared based on the number of cracks in pellets when the positive electrode mixture powder was weighed and pressure molded using the masking method. The number of measurements was n = 300 for each, and the results were as shown in Table 1.
第１表
又、その他の電池特性においては従来品と差がなかった
。As shown in Table 1, there was no difference from the conventional product in other battery characteristics.
本実施例においては、コーティング剤としてポリアクリ
ル酸す１１ウムを用いたが、その他にポリアクリル酸、
ナトリウム以外のポリアクリル酸塩、ポリメタクリル酸
、ポリビニルアルコール及びポリエチレンオキサイドを
用いても同様の結果が得られた。In this example, 11um polyacrylic acid was used as the coating agent, but polyacrylic acid,
Similar results were obtained using polyacrylates other than sodium, polymethacrylic acid, polyvinyl alcohol, and polyethylene oxide.
発明の効果
以上のように、本発明の製造法では、特に薄形電池での
成型性の向上が図られた。Effects of the Invention As described above, in the manufacturing method of the present invention, the moldability of thin batteries was particularly improved.
第１図は本発明の実施例における酸化銀電池の断面図、
第２図は本発明の顆粒状酸化銀の還元に用いる流動槽の
略図である。
１・・・・・・正極ケース、２・・・・・・正極合剤、
３・・・・・・正極リング、４・・・・・・セパレータ
、６・・・・・・含浸材、６・・・・・・封口リング、
７・・・・・・負極、８・・・・・・封口板、９・・・
・・・流動槽、１０・・・・・・加熱した空気の吹き込
み口、１１・・・・・・還元性溶液、１２・・・・・・
スプレーノズ／Ｕ。
１３・・・・・・排気口、１４・・・・・・コーテイン
グ液。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名ｌ−
王籠り２ス
２−一王都心剤
３−４枢リング
４−ｔ）マレ−５７
６−合港刑
６−士シさリング゛
ｑ−流ｖＪ盾
１０−苅ｌ恐し尺努気の
吹き込み口
ＩＩ−還元住尊販
Ｉ４−一コーティレ刀役FIG. 1 is a cross-sectional view of a silver oxide battery in an example of the present invention,
FIG. 2 is a schematic diagram of a fluidized bath used for reducing granular silver oxide according to the present invention. 1... Positive electrode case, 2... Positive electrode mixture,
3... Positive electrode ring, 4... Separator, 6... Impregnating material, 6... Sealing ring,
7... Negative electrode, 8... Sealing plate, 9...
...Fluidization tank, 10...Heated air blowing port, 11...Reducing solution, 12...
Spray noz/U. 13...Exhaust port, 14...Coating liquid. Name of agent: Patent attorney Toshio Nakao and one other person
King cage 2s 2-1 king capital 3-4 pivot ring 4-t) Male 57 6-port punishment 6-shisa ring ゛q-ryu vJ shield 10-karu l fear shaku toki blowing Mouth II-Kakenjusonhan I4-1 Cortile Sword Role
Claims (2)
し、この酸化銀に還元性溶液を噴霧してその粒子表面を
還元した後に、水溶性高分子溶液を噴霧して表面をコー
ティングした酸化銀を正極合剤として用いることを特徴
とする酸化銀電池の製造法。(1) Granular silver oxide is brought into a fluidized state in heated fluidized air, a reducing solution is sprayed onto the silver oxide to reduce the particle surface, and then a water-soluble polymer solution is sprayed to coat the surface. 1. A method for producing a silver oxide battery, characterized by using silver oxide as a positive electrode mixture.
酸塩、ポリメタクリル酸、ポリビニルアルコール及びポ
リエチレンオキサイドからなる群より選択されたいずれ
かである特許請求の範囲第１項記載の酸化銀電池の製造
法。(2) The silver oxide battery according to claim 1, wherein the water-soluble polymer is any one selected from the group consisting of polyacrylic acid, polyacrylate, polymethacrylic acid, polyvinyl alcohol, and polyethylene oxide. manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62008503A JPS63175344A (en) | 1987-01-16 | 1987-01-16 | Manufacture of silver oxide battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62008503A JPS63175344A (en) | 1987-01-16 | 1987-01-16 | Manufacture of silver oxide battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63175344A true JPS63175344A (en) | 1988-07-19 |
Family
ID=11694917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62008503A Pending JPS63175344A (en) | 1987-01-16 | 1987-01-16 | Manufacture of silver oxide battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63175344A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001059510A (en) * | 1999-07-20 | 2001-03-06 | Emhart Inc | Coated fastener insert and method for manufacturing it |
| WO2022030232A1 (en) * | 2020-08-07 | 2022-02-10 | パナソニックＩｐマネジメント株式会社 | Alkaline dry battery |
-
1987
- 1987-01-16 JP JP62008503A patent/JPS63175344A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001059510A (en) * | 1999-07-20 | 2001-03-06 | Emhart Inc | Coated fastener insert and method for manufacturing it |
| WO2022030232A1 (en) * | 2020-08-07 | 2022-02-10 | パナソニックＩｐマネジメント株式会社 | Alkaline dry battery |
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