JPH04345754A - Manufacture of battery having spiral electrode - Google Patents
Manufacture of battery having spiral electrodeInfo
- Publication number
- JPH04345754A JPH04345754A JP3118819A JP11881991A JPH04345754A JP H04345754 A JPH04345754 A JP H04345754A JP 3118819 A JP3118819 A JP 3118819A JP 11881991 A JP11881991 A JP 11881991A JP H04345754 A JPH04345754 A JP H04345754A
- Authority
- JP
- Japan
- Prior art keywords
- active material
- electrode
- current collecting
- current collector
- ultrasonic horn
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000011149 active material Substances 0.000 claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 239000002390 adhesive tape Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 abstract description 17
- 238000003466 welding Methods 0.000 abstract description 12
- 239000000758 substrate Substances 0.000 abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 13
- 239000002585 base Substances 0.000 description 8
- 238000003825 pressing Methods 0.000 description 8
- 229910052759 nickel Inorganic materials 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000005245 sintering Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001661 cadmium Chemical class 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000009770 conventional sintering Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、円筒型アルカリ蓄電池
などに用いられる三次元金属多孔体よりなる電極基体を
用いた渦巻電極体を備えた電池の製造方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a battery equipped with a spiral electrode body using an electrode base made of a three-dimensional porous metal body used in cylindrical alkaline storage batteries and the like.
【０００２】0002
【従来の技術】アルカリ蓄電池などに用いる電極は従来
カルボニルニッケル焼結体に、ニッケル塩、カドミウム
塩などの溶液を含浸して、アルカリ処理によって活物質
化する焼結式製法が主流であった。しかし、近年コスト
低減と高エネルギー密度化を計る目的で金属繊維焼結体
、スポンジ状ニッケルなどの三次元金属多孔体に、活物
質粉末を糊料液などと共に混練してペースト状にして、
このペースト状の活物質を直接充填する非焼結式製法が
検討されている。BACKGROUND OF THE INVENTION Conventionally, electrodes used in alkaline storage batteries and the like have been manufactured by a sintering method in which a carbonyl nickel sintered body is impregnated with a solution of nickel salt, cadmium salt, etc., and then treated with an alkali to become an active material. However, in recent years, with the aim of reducing costs and increasing energy density, active material powder is kneaded with glue liquid etc. into a three-dimensional metal porous body such as metal fiber sintered body or sponge-like nickel to form a paste.
A non-sintering manufacturing method in which this paste-like active material is directly filled is being considered.
【０００３】この非焼結式製法の一つにスポンジ状ニッ
ケルの金属多孔体を活物質保持体として用いるものがあ
る。この製法では、平均孔径２００ミクロン程度の三次
元的に連続する孔を有し多孔度９５％前後のスポンジ状
ニッケル多孔体に粉末状活物質を充填し、しかるのち圧
延して完成極板としている。これは従来の焼結式製法に
比べ製造プロセスが単純であるうえ高エネルギー密度化
の可能性が高い。One of these non-sintering manufacturing methods uses a sponge-like nickel metal porous body as an active material holder. In this manufacturing method, a powdered active material is filled into a sponge-like porous nickel material with three-dimensionally continuous pores with an average pore diameter of approximately 200 microns and a porosity of approximately 95%, and then rolled to form a completed electrode plate. . This manufacturing process is simpler than the conventional sintering method, and there is a high possibility of high energy density.
【０００４】ところで焼結式極板では、芯体として薄い
パンチング金属板を使っているためこれに集電端子を抵
抗溶接などの方法で容易に取りつけられるうえその集電
端子溶接部の信頼性は極めて高い。By the way, in sintered electrode plates, since a thin punched metal plate is used as the core, the current collector terminal can be easily attached to this using a method such as resistance welding, and the reliability of the welded part of the current collector terminal is low. Extremely high.
【０００５】一方、非焼結式極板は、非常に高多孔度の
基体を使うため集電端子の取り出しが難しい。スポンジ
状ニッケルは面積当りの金属密度が小さく、活物質充填
前に集電端子を溶接すると後の圧延工程で当該部分で不
均一な伸びや反りを生じるなどの理由で一般的な抵抗溶
接法は採用できなかった。On the other hand, since non-sintered electrode plates use a substrate with extremely high porosity, it is difficult to remove the current collector terminals. Sponge-like nickel has a low metal density per area, and if the current collector terminal is welded before filling the active material, uneven elongation or warping will occur in the area during the subsequent rolling process, so the general resistance welding method is difficult. I couldn't get hired.
【０００６】それに対して発明者らはかつて、特開平２
−１８６５５７号公報、特開昭６３−４０２５３号公報
などでその対策として超音波振動で活物質を除去しその
後に集電端子を溶接する製法を提案した。[0006] In contrast, the inventors used to
As a countermeasure to this problem, Japanese Patent Publication No. 186557 and Japanese Patent Application Laid-Open No. 63-40253 proposed a manufacturing method in which the active material is removed by ultrasonic vibration and then the current collector terminal is welded.
【０００７】しかしながら、これらの製法においても、
集電端子を取り付けた電極を円筒状に巻き取ったときの
端子部の強度や破断に対する信頼性に関して、未だ不十
分なものがあった。However, even in these manufacturing methods,
When an electrode to which a current collecting terminal is attached is wound up into a cylindrical shape, the strength of the terminal portion and the reliability against breakage are still insufficient.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、上述の如き
問題点を解決しスポンジ状ニッケルなどの三次元金属多
孔体を基体に用いる円筒型アルカリ蓄電池において高い
信頼性の得られる集電端子の取り出し方法を提供するも
のである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and provides a current collector terminal that is highly reliable in cylindrical alkaline storage batteries that use a three-dimensional metal porous material such as sponge-like nickel as a base. This provides a method for retrieval.
【０００９】[0009]
【課題を解決するための手段】本発明の渦巻電極体を備
えた電池の製造方法は、三次元金属多孔体からなる電極
基体の孔中に活物質を充填し、この基体の片面から超音
波ホーンを押し当て超音波振動により活物質を除去して
集電端子取付部を形成した後、この取付部に集電端子を
取り付けて電極を作製し、次いで、前記超音波ホーンを
押し当てた面が外周方向に面するよう電極を卷回して渦
巻電極体を構成することを特徴とするものである。[Means for Solving the Problems] A method for manufacturing a battery equipped with a spiral electrode body according to the present invention is to fill the pores of an electrode base made of a three-dimensional porous metal body with an active material, and apply ultrasonic waves from one side of the base to After pressing the horn and removing the active material by ultrasonic vibration to form a current collecting terminal mounting part, a current collecting terminal is attached to this mounting part to create an electrode, and then the surface to which the ultrasonic horn is pressed is A spiral electrode body is constructed by winding the electrode so that the electrode faces toward the outer periphery.
【００１０】ここで、前記超音波ホーンの先端のエッジ
部をテーパまたはラウンド加工することによって、活物
質除去部の極板圧縮率を中央部から周辺部にかけて連続
的に小さくすることが好ましい。[0010] Here, it is preferable that the edge portion of the tip of the ultrasonic horn is tapered or rounded so that the compression ratio of the electrode plate in the active material removed portion is continuously reduced from the central portion to the peripheral portion.
【００１１】また、前記集電端子取付部分全面を覆うよ
うに粘着テープを貼り付けることが好ましい。[0011] Further, it is preferable that an adhesive tape is attached so as to cover the entire surface of the current collector terminal mounting portion.
【００１２】0012
【作用】電極板に集電端子を取り付けた外観図を図４に
示す。このように電極板に集電端子を取り付けて、渦巻
電極体に巻き取る際、集電部に亀裂、破断などが発生す
る。これは、基本的には極板の柔軟性の欠如によるもの
だが、特に集電部にその現象が頻出するのは該当部に活
物質が充填されていないことによる他部分との伸び率の
不均一性や活物質除去工程において基体が損傷をうける
こと、厚みが異なることなどに起因していると考えられ
る。[Operation] Figure 4 shows an external view of the current collector terminal attached to the electrode plate. When a current collecting terminal is attached to an electrode plate in this manner and wound up into a spiral electrode body, cracks, breaks, etc. occur in the current collecting portion. This is basically due to the lack of flexibility of the electrode plate, but this phenomenon occurs particularly frequently in the current collecting part because the active material is not filled in that part and the elongation rate is different from other parts. This is thought to be due to uniformity, damage to the substrate during the active material removal process, and differences in thickness.
【００１３】発明者らはこれら要因の有意性と対策を明
確にするため各種実験を行った結果、渦巻電極体に巻き
取るときに外周面になる方向から超音波ホーンを押し当
てて活物質を除去することによって集電体取付部を形成
し、この取付部に集電体を取り付けた後、渦巻電極体を
構成すると集電体の溶接状態が良好でかつ巻き取り後の
強度も向上することを見出した。The inventors conducted various experiments to clarify the significance of these factors and countermeasures, and found that when the active material is wound around a spiral electrode body, an ultrasonic horn is pressed against it from the direction of the outer peripheral surface. By removing it, a current collector attachment part is formed, and after the current collector is attached to this attachment part, a spiral electrode body is formed, so that the welding condition of the current collector is good and the strength after winding is improved. I found out.
【００１４】また、超音波ホーンのエッジ部に傾斜をも
たせることにより、渦巻電極体を構成する際の集電体の
溶接状態がさらに良好になり、巻き取り後の強度も向上
する。[0014] Furthermore, by providing an inclination to the edge portion of the ultrasonic horn, the welding condition of the current collector when forming the spiral electrode body is further improved, and the strength after winding is also improved.
【００１５】さらに、集電端子を溶接後、活物質除去部
全面を覆うように粘着テープを貼り付けることによって
、集電部に亀裂や破断などが発生するのを抑制すること
ができ、巻き取り強度が向上する。Furthermore, after welding the current collector terminal, by pasting an adhesive tape so as to cover the entire area where the active material has been removed, it is possible to suppress the occurrence of cracks or breaks in the current collector, and the winding Strength is improved.
【００１６】以下実施例でその内容を詳述する。[0016] The details will be explained in detail in the following examples.
【００１７】[0017]
〔実験１〕
活物質除去方向及び厚み
活物質の除去は完成極板の片面から超音波ホーンを押し
当て加圧しつつホーンを発振させることで行うため、活
物質が極板外に排出されると共にホーン当接部は圧縮さ
れて周辺部に比べ厚みの薄い凹部が形成される。従って
、超音波ホーンの押し当て方向や方法により当該凹部の
形成される側や形状も異なる。これら要因の影響につい
て以下実験を行った。[Experiment 1] Active material removal direction and thickness The active material is removed by pressing an ultrasonic horn from one side of the completed electrode plate and applying pressure while oscillating the horn. The horn abutting portion is compressed to form a recessed portion that is thinner than the peripheral portion. Therefore, the side on which the recess is formed and its shape vary depending on the pressing direction and method of the ultrasonic horn. The following experiments were conducted to examine the influence of these factors.
【００１８】平均孔径２５０μのスポンジ状ニッケルに
水酸化ニッケルを主体とする活物質を充填し圧延により
活物質密度２．９ｇ／ｃｍ３で厚み０．６５ｍｍの極板
を作製した。超音波装置は出力７００Ｗ、周波数４０ｋ
Ｈｚ、超音波ホーンは、先端寸法１０×６ｍｍの方形の
ものをそれぞれ使用した（いずれもブランソンウルトラ
ソニック社製）。Sponge-like nickel having an average pore diameter of 250 μm was filled with an active material mainly composed of nickel hydroxide and rolled to produce an electrode plate having an active material density of 2.9 g/cm 3 and a thickness of 0.65 mm. The ultrasonic device has an output of 700W and a frequency of 40k.
Hz and a rectangular ultrasonic horn with tip dimensions of 10 x 6 mm were used (both manufactured by Branson Ultrasonic).
【００１９】超音波ホーンの押し当て方向は電池巻き取
り時の■内周側、■外周側及び■両側の３種類とし、こ
れによって出来上がった集電体溶接部の形状は図１のよ
うになる。The pressing directions of the ultrasonic horn are three types: ■inner circumference side, ■outer circumference side, and ■both sides when winding the battery, and the shape of the completed current collector welded part is as shown in Fig. 1. .
【００２０】また、活物質除去後の初期の極板厚みに対
する圧縮された厚み（以下“極板圧縮率”と称する）を
１０、１５、２０、２５、３０及び３５％になるようセ
ットした。Further, the compressed thickness (hereinafter referred to as "electrode plate compression ratio") with respect to the initial electrode plate thickness after removal of the active material was set to be 10, 15, 20, 25, 30, and 35%.
【００２１】その後、通常の抵抗スポット溶接により幅
３ｍｍの集電体を溶接し完成極板とした。Thereafter, a current collector having a width of 3 mm was welded by ordinary resistance spot welding to obtain a completed electrode plate.
【００２２】ここで、極板圧縮率の調整は、活物質除去
工程で超音波ホーンを極板に押し当てる際の下止点位置
設定により行う。例えば、実施例極板（厚さ０．６５ｍ
ｍ）について極板圧縮率を１０％とする場合は、超音波
ホーン下止点を極板表面から０．０６５ｍｍの深さの位
置にセットすることにより得られる。Here, the compression ratio of the electrode plate is adjusted by setting the bottom stop position when pressing the ultrasonic horn against the electrode plate in the active material removal process. For example, the example electrode plate (thickness 0.65 m
For m), when the electrode plate compression rate is 10%, it can be obtained by setting the lower end of the ultrasonic horn at a depth of 0.065 mm from the electrode plate surface.
【００２３】さらに、これらテスト極板を通常のカドミ
ウム陰極板とをセパレーターを介して組み合わせ巻き取
った。その後、解体して集電部の状態を目視観察し強度
を評価した。結果を表１に示す。Furthermore, these test electrode plates were combined with a normal cadmium cathode plate via a separator and wound up. Thereafter, it was disassembled and the condition of the current collector was visually observed to evaluate its strength. The results are shown in Table 1.
【００２４】[0024]
【表１】[Table 1]
【００２５】以上のように活物質除去後の極板圧縮率を
大きくする（活物質除去後の溶接部厚みを小さくする）
と集電体溶接状態は良好になるが巻き取った後の強度に
問題の出やすいことが分かる。しかし活物質除去方向を
巻き取りの外周側から行い凹部を外周側に形成すること
と、極板圧縮率を１５〜２５％に制御することにより、
集電体溶接状態及び巻き取り後強度がほぼ良好な状態で
得られる。As described above, the compression ratio of the electrode plate after removing the active material is increased (the thickness of the welded part is reduced after the active material is removed).
It can be seen that although the welding condition of the current collector is good, problems tend to occur in the strength after winding. However, by removing the active material from the outer periphery of the winding and forming the recesses on the outer periphery, and by controlling the plate compression ratio to 15 to 25%,
The current collector welded state and the strength after winding are almost good.
【００２６】ここで、集電体溶接状態が、極板圧縮率に
よって変わるのは、活物質除去率が低くて活物質の残留
が多いと溶接が正常に行えない（極板圧縮率が小さい場
合）、あるいは基体の損傷が大きく強度低下をおこす（
極板圧縮率が大きい場合）ことによる。一方、巻き取り
強度の観点からは、極板圧縮率の値を小さく設定すべき
だが実質的に採用できる範囲は上記で示したところに限
定される。Here, the welding condition of the current collector changes depending on the electrode plate compression ratio. If the active material removal rate is low and there is a large amount of active material remaining, welding cannot be performed normally (if the electrode plate compression ratio is small) ), or the base is severely damaged and its strength decreases (
(if the plate compression rate is large). On the other hand, from the viewpoint of winding strength, the value of the electrode plate compression ratio should be set small, but the practical range that can be adopted is limited to the above-mentioned range.
【００２７】〔実験２〕
超音波ホーン形状
実験１の結果を基に、活物質除去方向を巻き取り外周側
からとし、超音波ホーンのエッジ部に傾斜を設け実験１
と同一条件で実験を行った。超音波ホーンのエッジ部の
形状変更は、エッジ部にＲ０．５及びＲ１．０のラウン
ド加工を施すことにより行った。（図２）結果を表２に
示す。[Experiment 2] Based on the results of the ultrasonic horn shape experiment 1, the active material removal direction was set from the winding outer circumferential side, and the edge of the ultrasonic horn was sloped.
The experiment was conducted under the same conditions. The shape of the edge portion of the ultrasonic horn was changed by rounding the edge portion to R0.5 and R1.0. (FIG. 2) The results are shown in Table 2.
【００２８】[0028]
【表２】[Table 2]
【００２９】実験２から、エッジ部にラウンド加工を施
さないものは、超音波ホーンのエッジ部が当接する部分
の基体の損傷が比較的大きくなり、ホーンのエッジ部に
傾斜をもたせることにより集電体の溶接状態、巻き取り
強度ともに良好な条件領域が広がることが確認された。From Experiment 2, it was found that in the case where the edge part was not rounded, the damage to the base body at the part where the edge part of the ultrasonic horn came into contact was relatively large, and by making the edge part of the horn slope, it was found that current collection was difficult. It was confirmed that the range of conditions in which both the welding condition of the body and the winding strength are favorable has expanded.
【００３０】このことは、極板圧縮率３０％の巻き取り
後強度の不良数が、超音波ホーンのエッジ部に傾斜を設
けることによって低下していることから判る。This can be seen from the fact that the number of defects in strength after winding at a plate compression rate of 30% is reduced by providing an inclination to the edge portion of the ultrasonic horn.
【００３１】〔実験３〕
補強粘着テープ貼り付け
実験１で作製した超音波ホーンの押し当て方向が電池巻
き取り時の外周側である極板■に補強テ−プを貼り同様
の巻き取り強度テストを行った。用いた補強テープは厚
さ５０μのポリプロピレン製粘着テープで幅を活物質除
去部幅と同じ６．０ｍｍ、及び図３に示すように同部幅
を完全に覆える８．０ｍｍの２種類である。テストには
、前記２種類の粘着テープを用いた極板と粘着テープを
用いない極板とを比較した。[Experiment 3] Attaching Reinforcing Adhesive Tape A similar winding strength test was carried out by attaching reinforcing tape to the electrode plate (■) where the pressing direction of the ultrasonic horn produced in Experiment 1 was on the outer circumferential side when winding the battery. I did it. The reinforcing tape used was a polypropylene adhesive tape with a thickness of 50μ, and the width was 6.0 mm, which was the same as the width of the active material removed part, and the other was 8.0 mm, which could completely cover the width of the part as shown in Figure 3. . In the test, an electrode plate using the two types of adhesive tapes and an electrode plate using no adhesive tape were compared.
【００３２】結果を表３に示す。The results are shown in Table 3.
【００３３】[0033]
【表３】[Table 3]
【００３４】表３より、活物質除去部全面を覆うように
粘着テープを貼り付けることによって、極板圧縮率が大
きくなっても巻き取り強度を向上させることができる。[0034] From Table 3, it is possible to improve the winding strength even if the compression ratio of the electrode plate increases by pasting the adhesive tape so as to cover the entire surface of the area from which the active material has been removed.
【００３５】[0035]
【発明の効果】上述した如く、本発明の渦巻電極体を備
えた電池の製造方法は、三次元金属多孔体からなる電極
基体の孔中に活物質を充填し、この基体の片面から超音
波ホーンを押し当て超音波振動により活物質を除去して
集電端子取付部を形成した後、この取付部に集電端子を
取り付けて電極を作製し、次いで、前記超音波ホーンを
押し当てた面が外周方向に面するよう電極を卷回して渦
巻電極体を構成することにより、電池の信頼性の面から
要点となる集電体溶接部の強度を保つ上で大きな効果を
発揮するものであり、その工業的価値は極めて大きい。Effects of the Invention As described above, in the method of manufacturing a battery equipped with a spiral electrode body of the present invention, an active material is filled into the pores of an electrode base made of a three-dimensional porous metal body, and ultrasonic waves are applied from one side of the base to After pressing the horn and removing the active material by ultrasonic vibration to form a current collecting terminal mounting part, a current collecting terminal is attached to this mounting part to create an electrode, and then the surface to which the ultrasonic horn is pressed is By forming a spiral electrode body by winding the electrode so that the electrode faces toward the outer periphery, it is highly effective in maintaining the strength of the welded part of the current collector, which is important in terms of battery reliability. , its industrial value is extremely large.
【００３６】また、実施例においては同一厚さの極板に
ついてのみ言及したが、その効果は他の種類のものにも
等しく適用できる。さらに、補強テ−プ材質、活物質除
去部寸法などについても実施例記述に限定するものでは
ない。Further, in the embodiment, only the electrode plates of the same thickness were mentioned, but the effect can be equally applied to other types of electrode plates. Further, the material of the reinforcing tape, the dimensions of the active material removed portion, etc. are not limited to those described in the examples.
【図１】活物質除去部の要部断面図である。FIG. 1 is a sectional view of a main part of an active material removal section.
【図２】エッジ部にラウンド加工を施した活物質除去部
の要部断面図である。FIG. 2 is a cross-sectional view of a main part of an active material removal portion whose edge portion is rounded.
【図３】粘着制テープで集電端子を覆った活物質除去部
の要部断面図である。FIG. 3 is a cross-sectional view of a main part of an active material removal part in which a current collector terminal is covered with an adhesive tape.
【図４】電極の外観図である。FIG. 4 is an external view of an electrode.
１ 活物質除去部 ２ 集電端子 ３ 極板 ４ 粘着テープ 1 Active material removal section 2 Current collector terminal 3 Pole plate 4 Adhesive tape
Claims (3)
孔中に活物質を充填し、この基体の片面から超音波ホー
ンを押し当て超音波振動により活物質を除去して集電端
子取付部を形成した後、この取付部に集電端子を取り付
けて電極を作製し、次いで、前記超音波ホーンを押し当
てた面が外周方向に面するよう電極を卷回して渦巻電極
体を構成することを特徴とする渦巻電極体を備えた電池
の製造方法。[Claim 1] An active material is filled into the pores of an electrode base made of a three-dimensional metal porous body, and an ultrasonic horn is pressed against one side of the base to remove the active material by ultrasonic vibration to form a current collector terminal attachment part. After forming, a current collecting terminal is attached to this attachment part to produce an electrode, and then the electrode is wound so that the surface against which the ultrasonic horn is pressed faces in the outer circumferential direction to form a spiral electrode body. A method for manufacturing a battery equipped with a spiral electrode body characterized by:
テーパまたはラウンド加工することによって、活物質除
去部の極板圧縮率を中央部から周辺部にかけて連続的に
小さくすることを特徴とする請求項１記載の渦巻電極体
を備えた電池の製造方法。2. A claim characterized in that the edge portion of the tip of the ultrasonic horn is tapered or rounded to continuously reduce the compression ratio of the electrode plate in the active material removal portion from the central portion to the peripheral portion. Item 2. A method for manufacturing a battery comprising the spiral electrode body according to item 1.
に粘着テープを貼り付けることを特徴とする請求項１記
載の渦巻電極体を備えた電池の製造方法。3. The method of manufacturing a battery equipped with a spiral electrode body according to claim 1, characterized in that an adhesive tape is attached so as to cover the entire surface of the current collector terminal mounting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03118819A JP3081272B2 (en) | 1991-05-23 | 1991-05-23 | Method for manufacturing battery with spiral electrode body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03118819A JP3081272B2 (en) | 1991-05-23 | 1991-05-23 | Method for manufacturing battery with spiral electrode body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04345754A true JPH04345754A (en) | 1992-12-01 |
| JP3081272B2 JP3081272B2 (en) | 2000-08-28 |
Family
ID=14745928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03118819A Expired - Lifetime JP3081272B2 (en) | 1991-05-23 | 1991-05-23 | Method for manufacturing battery with spiral electrode body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3081272B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6180278B1 (en) | 1998-07-21 | 2001-01-30 | Eveready Battery Company, Inc. | Reclamation of active material from metal hydride electrochemical cells |
| JP2013211123A (en) * | 2012-03-30 | 2013-10-10 | Panasonic Corp | Battery |
-
1991
- 1991-05-23 JP JP03118819A patent/JP3081272B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6180278B1 (en) | 1998-07-21 | 2001-01-30 | Eveready Battery Company, Inc. | Reclamation of active material from metal hydride electrochemical cells |
| JP2013211123A (en) * | 2012-03-30 | 2013-10-10 | Panasonic Corp | Battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3081272B2 (en) | 2000-08-28 |
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