JP3489380B2 - Electrode for cylindrical battery and method for producing the same - Google Patents
Electrode for cylindrical battery and method for producing the sameInfo
- Publication number
- JP3489380B2 JP3489380B2 JP05132597A JP5132597A JP3489380B2 JP 3489380 B2 JP3489380 B2 JP 3489380B2 JP 05132597 A JP05132597 A JP 05132597A JP 5132597 A JP5132597 A JP 5132597A JP 3489380 B2 JP3489380 B2 JP 3489380B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- paste
- battery
- winding
- active material
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、円筒型電池のため
の、渦巻状に巻回して用いられる電極に関し、とくに巻
回に際してその始終端部の処理を容易にすることに関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spirally wound electrode for a cylindrical battery, and more particularly to facilitating the treatment of the beginning and end portions of the electrode during winding.
【0002】[0002]
【従来の技術】電池用電極には、大別してペースト式電
極、焼結式電極、及びポケット式電極がある。近年、ア
ルカリ蓄電池用ととして、ニッケルからなる三次元構造
の骨格をもったスポンジ状金属多孔基体にペースト状混
練物を充填するペースト式電極が実用化され、多用され
ている。これら金属多孔基体は、多孔度が95%程度あ
り、孔部の孔径は最大数百μmにも及ぶことから、ペー
スト状活物質あるいは活物質粉末を直接充填することが
可能であり、簡単な工法で電極を製造できるという特徴
を有している。2. Description of the Related Art Battery electrodes are roughly classified into paste type electrodes, sintered type electrodes, and pocket type electrodes. In recent years, as an alkaline storage battery, a paste-type electrode in which a sponge-like metal porous substrate having a three-dimensional structure skeleton made of nickel is filled with a paste-like kneaded material has been put into practical use and widely used. Since these porous metal substrates have a porosity of about 95% and the pore diameters of the pores reach up to several hundreds of μm, it is possible to directly fill the paste-like active material or the active material powder with a simple construction method. The feature is that the electrode can be manufactured by.
【0003】従来、これらの金属多孔基体への具体的な
活物質充填方法には、ペースト状活物質に振動を与えて
充填する方法、ドクターナイフ等でペースト状活物質を
練り込む方法、ペースト状活物質を吹きつけノズルより
噴射して金属多孔基体へ吹きつける方法、及び連続的に
一定量のペースト状活物質をノズル先端より吐出させ、
一定速度で走行させた金属多孔基体に塗着するノズルダ
イコート方法がある。Conventionally, as a concrete method of filling the porous metal substrate with the active material, a method of filling the paste-like active material with vibration, a method of kneading the paste-like active material with a doctor knife or the like, a paste-like method A method in which the active material is sprayed from a nozzle and sprayed onto the porous metal substrate, and a constant amount of paste-like active material is continuously discharged from the nozzle tip,
There is a nozzle die coating method in which a metal porous substrate that has run at a constant speed is coated.
【0004】これらの方法のうち、活物質を金属多孔基
体に均一に充填するには、ノズルダイコート法が優れて
おり、この活物質の充填状態を示す斜視図を図1に示
す。図中1は、帯状のニッケルからなるスポンジ状金属
多孔基体であって、矢印の方向に移動している。この基
体1にノズル2よりペースト状活物質を吐出し、ペース
ト塗着部3を得る。Of these methods, the nozzle die coating method is excellent for uniformly filling the metal porous substrate with the active material, and FIG. 1 is a perspective view showing the filled state of the active material. In the figure, reference numeral 1 denotes a sponge-like porous metal substrate made of strip-shaped nickel, which is moving in the direction of the arrow. The paste-like active material is discharged from the nozzle 2 onto the base 1 to obtain the paste coating portion 3.
【0005】[0005]
【発明が解決しようとする課題】このようなスポンジ状
金属多孔基体を用いた電池用電極は、その高多孔度とい
う特徴を生かし、金属多孔基体の内部及び表面に活物質
を充填するので、焼結式に比べて高容量密度での充填が
可能であるが、さらなる高容量化が実用上から要望さ
れ、多種の添加物や工法が検討されている。The electrode for a battery using such a sponge-like porous metal substrate takes advantage of its high porosity and is filled with an active material inside and on the surface of the porous metal substrate. Packing with a higher capacity density is possible compared to the type, but a higher capacity is demanded from a practical point of view, and various additives and construction methods are being studied.
【0006】ノズルダイコート法は、活物質を金属多孔
基体に効率良く一定量を均一に充填するには適した方法
であり、電池とした場合、その高容量化が可能である
が、ノズルより吐出するペーストの充填量は均一化し易
く、変化を与えることが困難なため、電極の巻始めと巻
き終わりとなる両端部が中央部と同じ厚さとなり、電極
群として渦巻状に巻回した際、その巻き始めおよびケー
スと巻き終わりの間は、電気容量とは関係のない残空間
が電極の厚さに比例して出来てしまう。The nozzle die coating method is a method suitable for efficiently and uniformly filling a porous metal substrate with a constant amount of an active material. When used as a battery, the capacity can be increased, but the nozzle die coating method is used. Since the filling amount of the paste to be made is easy to make uniform and it is difficult to give a change, both ends of the winding start and the winding end of the electrode have the same thickness as the central part, and when spirally wound as an electrode group, Between the start of winding and between the case and the end of winding, a residual space unrelated to the capacitance is formed in proportion to the thickness of the electrode.
【0007】本発明は、上記課題を解決するものであ
り、渦巻状に巻回することが容易で巻き始めおよび巻き
終わりの残空間が極めて少ない円筒型電池用電極とその
製造法を提供することを目的とする。The present invention solves the above-mentioned problems, and provides a cylindrical battery electrode that can be wound in a spiral shape with very little remaining space at the beginning and end of winding, and a method for producing the same. With the goal.
【0008】[0008]
【課題を解決するための手段】上記目的を達成するため
に本発明は、三次元網目構造の骨格を有する帯状の金属
多孔基体の孔部に活物質が充填された円筒型電池用電極
であって、この電極の長手方向の両端部は、中央部に比
べてその厚みが薄く、かつ柔らかく設けたものである。In order to achieve the above object, the present invention provides a cylindrical battery electrode in which the active material is filled in the pores of a strip-shaped metal porous substrate having a three-dimensional network skeleton. Both ends of the electrode in the longitudinal direction are thinner and softer than the central part.
【0009】[0009]
【発明の実施の形態】本発明は、前記の内容の電極とし
たものであり、この電極を渦巻状に巻回した際、電極の
巻き始め部分は、薄くて柔らかいので曲げ性に優れたも
のになり、巻き始めの径を小さくすることができる。こ
のことから、巻き始め部分及びケースと巻き終わり部分
の間に生じる電気容量に関与しない空間を少なくするこ
とができ、その残空間が少なくなった分だけケースへの
電極群の充填体積を増加させて円筒型電池の高容量化が
可能にできるものである。Detailed Description of the Invention The present onset bright, which has an electrode of the content, when the wound the electrode spirally winding start portion of the electrode was excellent in soft since bendability thin As a result, the diameter at the beginning of winding can be reduced. From this, it is possible to reduce the space that is not involved in the electric capacitance generated between the winding start portion and the case and the winding end portion, and increase the filling volume of the electrode group in the case by the amount that the remaining space decreases. Thus, it is possible to increase the capacity of the cylindrical battery.
【0010】本発明は、上記で示した電極の長手方向の
両端部が、その付け根部から先端部に行くに従って順次
薄くなっている形状としたものであり、このような形
状、例えば、順次段階的に薄くなったものや片面のみ連
続的に薄くなったものなどにすると、巻き始めの径をよ
り小さくすることが可能となり、また巻き終わりの端部
がなだらかなスロープとなることにより、ケースと巻き
終わりの間に生じる残空間をより少なくできる。The present invention has a shape in which both ends of the above-mentioned electrode in the longitudinal direction gradually become thinner from the root to the tip, and such a shape, for example, a sequential step If you make it thinner on one side or thinner on one side continuously, the diameter at the beginning of winding can be made smaller and the end of winding becomes a gentle slope, so it becomes a case. The remaining space generated during the end of winding can be reduced.
【0011】また、電極の長手方向の両端部形状は、そ
の付け根部から先端部に行くに従って両面から連続的に
薄くなったものにすると、さらに、両端部がなだらかな
スロープとなるので巻き始め部分及びケースと巻き終わ
り部分の間に生じる残空間を最も少なくでき、しかも両
端部の形状は同じであるので巻き始め部分と巻き終わり
部分及び表裏を区別する必要がなく、電極群の組立上極
めて好都合である。Further, if the shape of both end portions of the electrode in the longitudinal direction is such that both sides are continuously thinned from the root portion to the tip portion, both end portions will have a gentle slope, so that the winding start portion Also, the remaining space between the case and the end of winding can be minimized, and since the shape of both ends is the same, there is no need to distinguish between the start of winding, the end of winding, and the front and back, which is extremely convenient for assembly of the electrode group. Is.
【0012】請求項1記載の発明は、三次元網目構造の
骨格を有する帯状の金属多孔基体を、その長さ方向に走
行させながら骨格間に形成された孔部に活物質を主とす
るペーストを充填する際に、ペースト吐出部の両端部の
吐出隙間を中央部のそれよりも狭くしたノズルを用いて
ペーストを充填し、ついでプレス機により加圧する電池
用電極の製造法であって、その加圧の度合は、電極中央
部に比べ両端部の圧縮率を大きくする円筒型電池用電極
の製造法としたものであり、電極の長手方向の両端部
が、その中央部に比べて薄くて柔らかくすることができ
る製造法である。According to the first aspect of the present invention, a paste having an active material as a main component is formed in pores formed between skeletons while running a strip-shaped metal porous substrate having a skeleton having a three-dimensional network structure in the length direction thereof. A method for manufacturing a battery electrode in which the paste is filled using a nozzle having a discharge gap at both ends of the paste discharge part narrower than that in the central part when the paste is filled, and then pressed by a press machine, The degree of pressurization is based on the manufacturing method of the cylindrical battery electrode in which the compression ratio of both ends is made larger than that of the center part of the electrode, and both ends of the electrode in the longitudinal direction are thinner than the center part. It is a manufacturing method that can be softened.
【0013】請求項2記載の発明は、請求4記載の電極
の製造法において、プレス機がその両端部を中央部に比
べて直径が大きい一対のローラを用いて電極を製造する
ものであり、これによって、電極の長手方向の両端部
が、その付け根から先端部に行くに従って両面から連続
的に薄くなっている形状の電極を提供することを可能と
するものである。According to a second aspect of the present invention, in the method for producing an electrode according to the fourth aspect, the press machine uses a pair of rollers having both ends whose diameter is larger than that of the central part to produce the electrode. This makes it possible to provide an electrode in which both ends in the longitudinal direction of the electrode are continuously thinned from both sides from the root to the tip.
【0014】[0014]
(実施例1)水酸化ニッケル100重量部に対して、コ
バルト酸化物粉末10重量部を加えて粉末混合し、これ
らに分散媒として水を全ペーストに占める比重が25重
量%となるように加え、練合してペースト状活物質とし
た。(Example 1) To 100 parts by weight of nickel hydroxide, 10 parts by weight of cobalt oxide powder was added and powder-mixed, and water was added thereto as a dispersion medium so that the specific gravity of the whole paste was 25% by weight. The mixture was kneaded to obtain a paste-like active material.
【0015】図1に示すように、幅60mm、厚み3m
m、多孔度98%の寸法仕様で、平均孔径200μmの
帯状のニッケルからなるスポンジ状金属多孔基体1の片
面に、これに対向して長さ60mmのノズル2を固定状
態に配置した。このノズル2は、図2に示すようにノズ
ル2のペースト吐出部4Aが、その両端部の開口幅を中
央部のそれよりも狭くしたものを用いた。As shown in FIG. 1, a width of 60 mm and a thickness of 3 m
A nozzle 2 having a length of 60 mm was fixedly disposed on one surface of a sponge-like metal porous substrate 1 made of nickel and having an average pore diameter of 200 μm and having a size specification of m and a porosity of 98%. As shown in FIG. 2, the nozzle 2 used was one in which the paste discharge part 4A of the nozzle 2 had an opening width at both ends narrower than that at the central part.
【0016】この金属多孔体1の片面(下面)を支持し
てその長さ方向に7m/分の速度で移動させながらペー
スト状活物質をノズル2より10g/秒の吐出速度で金
属多孔体1の孔部に充填した。While supporting one surface (lower surface) of this porous metal body 1 and moving it in the length direction at a speed of 7 m / min, the active material paste is discharged from the nozzle 2 at a rate of 10 g / sec. Was filled in the hole.
【0017】これを平滑ローラプレス機によりプレスし
て、両端部が中央部に比べて厚みの薄い電極を構成し
た。そしてこれを所定の寸法に切断して本発明の実施例
1における電極とした。その模式図を図3に示す。This was pressed by a smooth roller press to form an electrode whose both ends were thinner than the central part. Then, this was cut into a predetermined size to obtain an electrode in Example 1 of the present invention. The schematic diagram is shown in FIG.
【0018】比較のために、図4に示すようなノズル2
の吐出部4Bの両端部と中央部が同じノズル2を用い、
その他は本発明の実施例1と同じ方法として作製した電
極を比較例の電極とし、その模式図を図5に示す。For comparison, the nozzle 2 as shown in FIG.
Using the nozzle 2 having the same central portion as the both end portions of the discharge portion 4B of
An electrode manufactured by the same method as in Example 1 of the present invention was used as a comparative example electrode except for the above, and a schematic diagram thereof is shown in FIG.
【0019】実施例1の電極の端縁の一部にリード片を
スポット溶接して正極板5を作製し、これとポリプロピ
レンの不織布製セパレータ6と水素吸蔵合金負極板7と
からなる渦巻状電極群を作製し、これをケース8に挿入
し、所定の電解液を注入し、4/5Aサイズの円筒型ニ
ッケル−水素蓄電池を構成し、本発明の実施例1におけ
る電池とした。また、比較例の電極を用いて、その他は
実施例1と同じ構成とした電池を比較例における電池と
した。A lead piece was spot-welded to a part of the edge of the electrode of Example 1 to produce a positive electrode plate 5, and a spiral electrode composed of this, a nonwoven fabric separator 6 of polypropylene and a hydrogen storage alloy negative electrode plate 7. A group was prepared, this was inserted into the case 8, a predetermined electrolytic solution was injected, and a cylindrical nickel-hydrogen storage battery of 4/5 A size was configured to be a battery in Example 1 of the present invention. A battery having the same structure as that of Example 1 except that the electrode of the comparative example was used was used as the battery of the comparative example.
【0020】図6は、実施例1における電池を横方向に
切断した部分断面図であり、電極の長手方向の両端部
は、その厚みが中央部のそれよりも薄くて柔らかいので
巻き始めの径を小さくでき、また巻き終わり部分が順次
先端部に行くに従って薄くなるので残空間9が少なくな
っている。その結果、電池内の電気容量に関与しない残
空間9を少なくできる。FIG. 6 is a partial cross-sectional view of the battery in Example 1 cut in the lateral direction. Since both ends in the longitudinal direction of the electrode are thinner and softer than those in the central part, the diameter at the beginning of winding is set. Can be made smaller, and the winding end portion becomes thinner toward the tip end portion in sequence, so that the remaining space 9 is reduced. As a result, the remaining space 9 that does not contribute to the electric capacity of the battery can be reduced.
【0021】図7は、比較例における電池を横方向に切
断した部分断面図であり、電極の長手方向の両端部は、
その厚みが中央部のそれと同じであるので、巻き始めの
径が大きくなることや巻き終わりの厚みが実施例よりも
厚くなるので、その分、残空間9が多くなる。FIG. 7 is a partial cross-sectional view of the battery of the comparative example cut in the lateral direction.
Since the thickness is the same as that of the central portion, the diameter at the beginning of winding becomes larger and the thickness at the end of winding becomes thicker than that of the embodiment, and the remaining space 9 increases accordingly.
【0022】したがって、実施例1における電極を円筒
型電池に用いることにより、比較例における電極を用い
るものよりも、ケースへの電極群の充填体積を増加させ
ることができ、その結果、電池の高容量化が可能とな
る。Therefore, by using the electrode of Example 1 in the cylindrical battery, the volume of the electrode group filled in the case can be increased more than that of the electrode of Comparative Example using the electrode, and as a result, the battery can be made higher. Capacity can be increased.
【0023】(実施例2)実施例1と同じ帯状のスポン
ジ状金属多孔基体1を用い、活物質ペーストも同じ処方
とし、ノズル2を用いてペースト状活性物質を金属多孔
基体1に充填し、図8に示すように、その両端部の直径
が中央部のそれに比べて大きい一対のプレスローラ10
を有するローラプレス機を用いてプレスした。そしてこ
れを所定の寸法に切断して本発明の実施例2における電
極とした。その模式図を図9に示す。Example 2 The same band-shaped sponge-like metal porous substrate 1 as in Example 1 was used, the active material paste had the same formulation, and the paste-like active substance was filled in the metal porous substrate 1 using the nozzle 2. As shown in FIG. 8, a pair of press rollers 10 whose both ends have a larger diameter than that of the central part.
It was pressed using a roller press machine having a. Then, this was cut into a predetermined size to obtain an electrode in Example 2 of the present invention. The schematic diagram is shown in FIG.
【0024】実施例2における電極の長手方向の両端部
の形状は、その付け根部から先端部に行くに従って上下
両面から連続的に薄くなったものであり、実施例1にお
ける電極よりも、さらに両端部がなだらかなスロープと
なるので巻き始め部分及びケースと巻き終わり部分の間
に生じる残空間9を最も少なくできる。その結果、ケー
スへの電極群の充填体積を最も増加させることができ、
さらなる電池の高容量化が可能となる。しかも、この電
極の両端部の形状は、同じであるので巻き始め部分と巻
き終わり部分及び表裏を区別する必要がなく、電極群の
組立状極めて好都合である。The shape of both ends in the longitudinal direction of the electrode in Example 2 is such that it becomes thinner continuously from the upper and lower surfaces as it goes from the root to the tip, and both ends of the electrode in Example 1 are further reduced. Since the part has a gentle slope, the remaining space 9 generated between the winding start part and the case and the winding end part can be minimized. As a result, the filling volume of the electrode group in the case can be increased most,
It is possible to further increase the capacity of the battery. Moreover, since the shape of both ends of this electrode is the same, it is not necessary to distinguish the winding start portion, the winding end portion, and the front and back sides, which is extremely convenient for the assembly of the electrode group.
【0025】[0025]
【発明の効果】以上のように本発明によれば、三次元網
目構造の骨格を有する帯状の金属多孔基体の孔部に活物
質が充填された円筒型電池用電極において、この電極の
長手方向の両端部は、中央部に比べてその厚みが薄く、
かつ柔らかく設けることによって、この電極を渦巻状に
巻回した際、電極の巻き始め部分は、曲げ性に優れたも
のになり、巻き始めの径を小さくすることができる。こ
のことから、巻き始め部分及びケースと巻き終わり部分
の間に生じる電気容量に関与しない空間を少なくするこ
とができ、その残空間が少なくなった分だけケースへの
電極群の充填体積を増加させて円筒型電池の高容量化が
可能にできるものである。As described above, according to the present invention, in the cylindrical battery electrode in which the active material is filled in the pores of the strip-shaped metal porous substrate having the skeleton of the three-dimensional network structure, the longitudinal direction of the electrode Both ends of the are thinner than the central part,
Further, by providing it softly, when the electrode is wound in a spiral shape, the winding start portion of the electrode has excellent bendability, and the winding start diameter can be reduced. From this, it is possible to reduce the space that is not involved in the electric capacitance generated between the winding start portion and the case and the winding end portion, and increase the filling volume of the electrode group in the case by the amount that the remaining space decreases. Thus, it is possible to increase the capacity of the cylindrical battery.
【図1】帯状のスポンジ状金属多孔体への活物質充填状
態を示す斜視図FIG. 1 is a perspective view showing a state in which a band-shaped sponge-like metal porous body is filled with an active material.
【図2】本発明の実施例1における電極の製造に用いる
ノズルの下面図FIG. 2 is a bottom view of a nozzle used for manufacturing an electrode in Example 1 of the present invention.
【図3】同電極の模式図FIG. 3 is a schematic diagram of the electrode
【図4】比較例における電極の製造に用いるノズルの下
面図FIG. 4 is a bottom view of a nozzle used for manufacturing an electrode in a comparative example.
【図5】同電極の模式図FIG. 5 is a schematic diagram of the electrode
【図6】実施例1における電池の部分断面図FIG. 6 is a partial cross-sectional view of the battery in Example 1.
【図7】比較例における電池の部分断面図FIG. 7 is a partial cross-sectional view of a battery in a comparative example.
【図8】実施例2における一対のプレスローラを示す図FIG. 8 is a diagram showing a pair of press rollers in Example 2.
【図9】同電極の模式図FIG. 9 is a schematic diagram of the electrode
1 帯状のスポンジ状金属多孔基体 2 ノズル 3 ペースト塗着部 4 ペースト吐出部 5 正極板 6 セパレータ 7 負極板 8 ケース 9 残空間 10 プレスローラ 1 Band-shaped sponge-like porous metal substrate 2 nozzles 3 Paste coating part 4 Paste dispenser 5 Positive plate 6 separator 7 Negative plate 8 cases 9 remaining space 10 Press rollers
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平5−283069(JP,A) 特開 平6−20718(JP,A) 特開 昭60−243967(JP,A) 実開 昭51−66727(JP,U) 実開 昭53−160720(JP,U) (58)調査した分野(Int.Cl.7,DB名) H01M 4/04 H01M 4/28 H01M 4/30 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-283069 (JP, A) JP-A-6-20718 (JP, A) JP-A-60-243967 (JP, A) Actual development Sho-51- 66727 (JP, U) Actually developed 53-160720 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) H01M 4/04 H01M 4/28 H01M 4/30
Claims (2)
多孔基体を、その長さ方向に走行させながら骨格間に形
成された孔部に活物質を主とするペーストを充填する際
に、ペースト吐出部の両端部の吐出隙間を中央部のそれ
よりも狭くしたノズルを用いてペーストを充填し、つい
でプレス機により加圧する電池用電極の製造法であっ
て、その加圧の度合は、電極中央部に比べ両端部の圧縮
率を大きくする円筒型電池用電極の製造法。1. When filling a band-shaped metal porous substrate having a skeleton with a three-dimensional network structure in the length direction while filling the pores formed between the skeletons with a paste mainly containing an active material, A method of manufacturing a battery electrode in which the paste is filled using a nozzle having a discharge gap at both ends of the paste discharge part narrower than that in the central part, and then pressed by a press machine, and the degree of pressurization is A method for manufacturing an electrode for a cylindrical battery, in which the compressibility at both ends is greater than that at the center of the electrode.
直径が大きい一対のローラを有している請求項4記載の
電池用電極の製造法。2. The method for manufacturing a battery electrode according to claim 4, wherein the pressing machine has a pair of rollers each having both ends having a diameter larger than that of the central part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05132597A JP3489380B2 (en) | 1997-03-06 | 1997-03-06 | Electrode for cylindrical battery and method for producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05132597A JP3489380B2 (en) | 1997-03-06 | 1997-03-06 | Electrode for cylindrical battery and method for producing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10255777A JPH10255777A (en) | 1998-09-25 |
JP3489380B2 true JP3489380B2 (en) | 2004-01-19 |
Family
ID=12883779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP05132597A Expired - Fee Related JP3489380B2 (en) | 1997-03-06 | 1997-03-06 | Electrode for cylindrical battery and method for producing the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3489380B2 (en) |
-
1997
- 1997-03-06 JP JP05132597A patent/JP3489380B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH10255777A (en) | 1998-09-25 |
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