JPS62229761A - Spiral electrode for cylindrical nonaqueous electrolyte battery - Google Patents
Spiral electrode for cylindrical nonaqueous electrolyte batteryInfo
- Publication number
- JPS62229761A JPS62229761A JP61071116A JP7111686A JPS62229761A JP S62229761 A JPS62229761 A JP S62229761A JP 61071116 A JP61071116 A JP 61071116A JP 7111686 A JP7111686 A JP 7111686A JP S62229761 A JPS62229761 A JP S62229761A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- thin metal
- electrode
- metal plate
- electrolyte 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
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 62
- 239000002184 metal Substances 0.000 claims abstract description 62
- 238000004804 winding Methods 0.000 claims abstract description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 18
- 238000004049 embossing Methods 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
- H01M6/10—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with wound or folded electrodes
-
- 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
- H01M4/06—Electrodes for primary cells
- H01M4/08—Processes of manufacture
- H01M4/12—Processes of manufacture of consumable metal or alloy electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の技術分野）
本発明は、円筒形非水電解液電池の渦巻状電極に関し、
更に詳しくは、負極板の巻回終端部に後述する金属薄板
が添着されて負極板の剥離の防止ができ、かつ放電性能
が良好になる円筒形非水電解液電池の渦巻状電極に関す
る。Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to a spiral electrode for a cylindrical non-aqueous electrolyte battery.
More specifically, the present invention relates to a spiral electrode for a cylindrical non-aqueous electrolyte battery in which a metal thin plate (described later) is attached to the end of the winding of the negative electrode plate to prevent the negative electrode plate from peeling off and to provide good discharge performance.
（発明の技術的背景とその問題点）
従来、円筒形非水電解液電池においては、長尺状の正極
板と負極板の間にセパレータを介在せしめた積層シート
を巻回して渦巻状電極とし、一方の電極の間に挟まれて
いる集電体を露出させた状態で端子部を兼ねた電池容器
に挿入し、この露出集電体と電池容器内壁とを接触させ
て導通させていた。(Technical background of the invention and its problems) Conventionally, in cylindrical non-aqueous electrolyte batteries, a laminated sheet with a separator interposed between a long positive electrode plate and a negative electrode plate is wound to form a spiral electrode. The current collector sandwiched between the electrodes was inserted into a battery container which also served as a terminal part in an exposed state, and the exposed current collector was brought into contact with the inner wall of the battery container to establish electrical continuity.
しかしながら、電極を電池容器内に挿入しやすくするた
めに、電極の外径寸法を電池容器内径よりも１ｍｍ程度
小さくすることが通例であるが、そのため、露出集電体
と電池容器内壁との接触が不充分かつ不安定となる一方
、電極の巻きゆるみが生じるため正極板、負極板どうし
の密着性が悪くなり、電池の内部抵抗の上昇、活物質の
利用率の低下を引き起こしていた。However, in order to make it easier to insert the electrode into the battery container, it is customary to make the outer diameter of the electrode approximately 1 mm smaller than the inner diameter of the battery container. In addition, the electrode winding becomes insufficient and unstable, and the adhesion between the positive and negative electrode plates deteriorates, causing an increase in the internal resistance of the battery and a decrease in the utilization rate of the active material.
そこで、一方の電極から露出している集電体の巻回終端
部に金属薄板を添着し、該金属薄板で電極の最外周を被
って電池容器内壁と接触させる方法が開示されている（
実開昭５８−１３４８６３号公報参照）。この構造にす
れば、電池容器と電極との電気的接触が増して全体の導
通は良好となる。しかしながら、この場合、依然として
巻きゆるみを防ぐことはできない。Therefore, a method has been disclosed in which a thin metal plate is attached to the winding end of the current collector exposed from one electrode, and the thin metal plate covers the outermost periphery of the electrode and contacts the inner wall of the battery container (
(See Utility Model Application Publication No. 58-134863). With this structure, electrical contact between the battery container and the electrodes is increased and overall conduction is improved. However, in this case, loosening of the winding still cannot be prevented.
本発明者らは、上記した問題を解決するために負極板の
巻回終端部に添着する金属薄板に複数の外方向突起（外
側に向いた突起）を有する部分を形成し、電極外径を電
池容器の内径よりわずかに小さく、かつ突起の先端まで
の径がわずかに大きくなるようにした渦巻状電極を開示
した（特願昭６０−１７４０７４号ｆＡ間参照）。この
構造の場合、金属薄板の突起と電極内壁との接触圧が高
まって両者の電気的な接触も良好となり、電池の内部抵
抗を小さくすることができ、又電極の巻きゆるみもなく
放電特性を向上させることができる。In order to solve the above-mentioned problem, the present inventors formed a part having a plurality of outward protrusions (protrusions facing outward) on a thin metal plate attached to the end of the winding of the negative electrode plate, thereby reducing the outer diameter of the electrode. A spiral electrode has been disclosed which is slightly smaller than the inner diameter of the battery container and whose diameter up to the tip of the protrusion is slightly larger (see Japanese Patent Application No. 174074/1988, fA). With this structure, the contact pressure between the protrusion of the thin metal plate and the inner wall of the electrode increases, resulting in good electrical contact between the two, making it possible to reduce the internal resistance of the battery, and to improve the discharge characteristics without loosening the electrode winding. can be improved.
しかしながら、この金属薄板に負極板である金属リチウ
ム板をプレス圧着させる際、突起が破壊されることがあ
り接触不良を招くことが多い。また金属リチウム板は、
金Ｂ薄板の平面側に圧着されるため、金属リチウム板と
この金属薄板とが咬合していないので、巻回して電極を
形成する際に両者は、剥離することがあった。このよう
なことから、木発明者らは、外向きに複数の突起を有す
る部分（２）と内向きにエンボス加工が施されている部
分（１）とに画分された１枚の金属薄板を、その部分（
２）で負極板の巻回終端部に圧着した構造の渦巻状電極
を提案した（特願昭６０−２６１３５０号哨−書参照）
。However, when a metal lithium plate, which is a negative electrode plate, is press-bonded to this thin metal plate, the protrusions may be destroyed, often resulting in poor contact. In addition, metal lithium plates are
Since the metal lithium plate and the metal thin plate do not interlock with each other because they are crimped onto the flat side of the gold B thin plate, they may peel off when they are wound to form an electrode. For this reason, the inventors of the invention developed a sheet of metal that is divided into a portion (2) that has a plurality of protrusions facing outward and a portion (1) that is embossed facing inward. , that part (
In 2), we proposed a spiral electrode that was crimped to the end of the winding of the negative electrode plate (see patent application No. 60-261350).
.
この電極の場合、部分（２）と負極板との咬合は良好で
あるため両者の密着性は良好であり、また部分（１）の
外向き突起により電池容器内壁との接触、すなわち、電
気的接触は良好となり電池抵抗も小さくなり、しかも電
極の巻きゆるみも少なくなるという効果が奏せられる。In the case of this electrode, the engagement between part (2) and the negative electrode plate is good, so the adhesion between the two is good, and the outward protrusion of part (1) allows contact with the inner wall of the battery container, that is, electrical The effect is that the contact is good, the battery resistance is reduced, and the looseness of the electrode winding is also reduced.
しかしながら、この電極の場合１巻回時に金属薄板のバ
ネ性に基づく復元力により、負極板（金属リチウム板）
と金属薄板との剥離現象は必ずしもなくなることはない
。However, in the case of this electrode, the negative electrode plate (metallic lithium plate)
The phenomenon of peeling between the metal sheet and the thin metal plate does not necessarily disappear.
（発明の目的）
本発明は、上記した特願昭６０−２６１３５０号喚麺）
記載の電極を改良したものであって、部分（１）と部分
（２）を後述する態様にして先行電極の問題点を解消し
た円筒形非水電解液電池の渦巻状電極を提供することを
目的とする。(Object of the invention) The present invention is directed to the above-mentioned patent application No. 60-261350)
It is an object of the present invention to provide a spiral electrode for a cylindrical non-aqueous electrolyte battery, which is an improvement on the electrode described above, and in which the problems of the previous electrode are solved by having portions (1) and (2) in the manner described below. purpose.
（発明の概要）
本発明の円筒形非水電解液電池の渦巻状電極は、正極板
と負極板の間にセパレータを介在せしめた積層シートを
、該負極板が外側に位置するように巻回して成り、該負
極板の巻回終端部の外側周面に後述する部分（１）と部
分（２）を有し、該部分（１）よりもバネ性の大きい部
分（２）とに画分された１枚の金属薄板が添着されてい
ることを特徴とする。(Summary of the Invention) The spiral electrode of the cylindrical non-aqueous electrolyte battery of the present invention is made by winding a laminated sheet with a separator interposed between the positive electrode plate and the negative electrode plate so that the negative electrode plate is located on the outside. , having a portion (1) and a portion (2) to be described later on the outer peripheral surface of the winding end portion of the negative electrode plate, and is divided into a portion (2) having greater springiness than the portion (1). It is characterized by having one thin metal plate attached to it.
以下に本発明の電極を図面に基づいて説明する。The electrode of the present invention will be explained below based on the drawings.
第１図、第２図は、いずれも負極板（金属リチウム板）
の終端部に金属薄板を添着した状態を示す図で、第１図
は平面図、第２図は、第１図の負極板の破線ａに沿った
断面図である。Figures 1 and 2 are both negative electrode plates (metallic lithium plates).
1 is a plan view, and FIG. 2 is a sectional view taken along the broken line a of the negative electrode plate in FIG. 1. FIG.
図において、１は負極板で、２が金属薄板である。In the figure, 1 is a negative electrode plate, and 2 is a thin metal plate.
第２図において、負極板ｌの下面にはセパレータ、正極
板（いずれも図示しない）がこの順序で積層され、電極
形成時には負極板ｌの上面（第２図において）が、外側
周面となるように巻回される。In Fig. 2, a separator and a positive electrode plate (none of which are shown) are laminated in this order on the lower surface of the negative electrode plate l, and when forming the electrode, the upper surface of the negative electrode plate l (in Fig. 2) becomes the outer peripheral surface. It is wound like this.
この負極板１の終端部の外周面（第２図の上面）に後述
する金属薄板２が添着される。A metal thin plate 2, which will be described later, is attached to the outer circumferential surface (upper surface in FIG. 2) of the terminal end of this negative electrode plate 1.
金属薄板２は、２つの部分に画分されている。The sheet metal 2 is divided into two parts.
すなわち、複数個の内向きの突起３ａが形成されている
部分（１）２ａと、複数個の外向きの突起３ｂが形成さ
れてし）る部分（２）２ｂである。なお、部分（１）の
突起３ａはエンボスであることが好ましい。そして、こ
の金属薄板２において、部分（１）よりも部分（２）の
方が、そのバネ性が大であることを特徴とする。That is, a portion (1) 2a in which a plurality of inward protrusions 3a are formed and a portion (2) 2b in which a plurality of outward protrusions 3b are formed. In addition, it is preferable that the protrusion 3a of part (1) is an emboss. The thin metal plate 2 is characterized in that the portion (2) has greater springiness than the portion (1).
部分（１）と部分（２）のバネ性をそれぞれ相違させる
ことは、例えば、各部分に各突起３ａ、３ｂを形成させ
たのち、各部分の熱処理条件を変えることによって可能
である。また１部分（１）と部分（２）の板厚を変える
ことによっても可能となる。The spring properties of portions (1) and (2) can be made to differ, for example, by forming the protrusions 3a, 3b on each portion and then changing the heat treatment conditions for each portion. It is also possible to do this by changing the plate thickness of part 1 (1) and part (2).
前者の方法の場合、所定形状の金属薄板２の部分（１）
に相当する領域に常用のエンボス加工を施して複数個の
突起３ａを形成し、また部分（２）に相当する領域に突
起３ｂを形成したのち、例えば部分（１）の個所のみに
熱処理を施す、このような処理により、加工硬化してい
るエンボス部分のみが軟化してその硬度は下がり、部分
（２）は加工硬化した状態に留るため、金属薄板全体は
弾性の異なる２つの部分を有することになる。In the case of the former method, the portion (1) of the thin metal plate 2 having a predetermined shape
After forming a plurality of protrusions 3a by regular embossing in the area corresponding to the part (2) and forming the protrusions 3b in the area corresponding to the part (2), for example, heat treatment is applied only to the part (1). Through such treatment, only the work-hardened embossed part softens and its hardness decreases, and part (2) remains in the work-hardened state, so the entire thin metal sheet has two parts with different elasticities. It turns out.
また、板厚が異なる場合は、部分（１）に相当する望城
を薄くし、部分（２）に相当する領域を厚くすればよい
。例えば、バネ性の小さい部分（１）の厚さは、Ｏ，０
ＩＮＯ，１０ｍｍであればよい、この厚さを０．０１ｍ
ｍ未満にするとエンボス加工時に、突起３ａが破壊され
る可能性があり、０．１０ｍｍ以上にすると金属リチウ
ム板からの剥離が生じ始める。好ましくは０．０３〜０
．０７１１１１１である。また、バネ性の大きい部分（
２）の厚さは、０．０５〜０．２０ｍｍであればよい、
この厚さを０．０５ｍｍ未満にすると突起３ｂの電池容
器内壁への接触圧が高くならず、０．２０ｍｍを超える
場合は巻回時の作業性が悪くなる。好ましくは０．０８
〜Ｏ，１８ｍｍである。Furthermore, if the plate thicknesses are different, the wall corresponding to the portion (1) may be made thinner, and the area corresponding to the portion (2) may be made thicker. For example, the thickness of the portion (1) with low springiness is O,0
INO, 10mm is sufficient, this thickness is 0.01m
If the thickness is less than m, the protrusions 3a may be destroyed during embossing, and if the thickness is 0.10 mm or more, peeling from the metal lithium plate will begin to occur. Preferably 0.03-0
．． It is 0711111. Also, parts with large springiness (
The thickness of 2) may be 0.05 to 0.20 mm.
If the thickness is less than 0.05 mm, the contact pressure of the protrusion 3b to the inner wall of the battery container will not be high, and if it exceeds 0.20 mm, the workability during winding will be poor. Preferably 0.08
~O, 18mm.
このようにして、突出する方向が互いに異なる突起を有
し、かつバネ性が異なっている部分（１）９部分（２）
から成っている金ｍ薄板２が形成される。In this way, parts (1) and 9 parts (2) have protrusions that project in different directions and have different spring properties.
A thin gold plate 2 consisting of is formed.
使用する金属薄板２の材質としては、格別限定されるも
のではないが、５ＵＳ３０４，５ＵＳ３０４Ｌ、５ＵＳ
３１６．５ＵＳ３１６Ｌ等のオーステナイト系ステンレ
ス、５ＵＳ４３０フエライト系ステンレス、ニッケル板
を挙げることができる。The material of the thin metal plate 2 to be used is not particularly limited, but may include 5US304, 5US304L, 5US
Examples include austenitic stainless steel such as 316.5US316L, 5US430 ferrite stainless steel, and nickel plate.
また、金属薄板２の厚さは、板の材質によりバネ性が異
なるので、−概には言えないが、通常０ 、０１”０
、２０ｍｍでよい。In addition, since the elasticity of the thin metal plate 2 varies depending on the material of the plate, the thickness of the thin metal plate 2 is usually 0,01"0, although it cannot be generalized.
, 20mm is sufficient.
金属薄板２の部分（１）の突起３ａの高さは、負極板の
厚さのｈ以上、板以下であることが好ましい。この突起
３ａの高さが負極板の厚さ％未満の場合には、金属薄板
２と負極板ｌの圧着状態が不充分となり、剥離現象を起
すことがあり、また負極板ｌの厚みより大きくなると圧
着時に負極板１に変形が生じるからである０通常は例え
ば０．２ａｍのリチウム負極板の場合には、０．０５〜
０．２０ｍｍであり、好ましは０．１０−０．１５ｍ層
である。The height of the protrusion 3a of the portion (1) of the thin metal plate 2 is preferably greater than or equal to the thickness h of the negative electrode plate and less than the thickness h of the negative electrode plate. If the height of the protrusion 3a is less than % of the thickness of the negative electrode plate, the pressure bond between the thin metal plate 2 and the negative electrode plate l will be insufficient, which may cause peeling phenomenon. This is because the negative electrode plate 1 will be deformed during crimping.Normally, for example, in the case of a 0.2 am lithium negative electrode plate, the
0.20 mm, preferably 0.10-0.15 m layer.
部分（１）における突起３ａの数は、通常単位面積（−
）当り１０〜３０個、好ましくは１５〜２５個でよい。The number of protrusions 3a in portion (1) is usually determined by unit area (-
) may be 10 to 30, preferably 15 to 25.
部分（２）における突起３ｂの高さは、格別限定されな
いが、０．１０〜０．７０ｍｍがよく、好ましくは、０
．２０−０．６０ｗｍである。The height of the protrusion 3b in the portion (2) is not particularly limited, but is preferably 0.10 to 0.70 mm, preferably 0.
．． 20-0.60wm.
部分（２）における突起３ｂの数は、通常単位面積（ｃ
ｍ）当り１０〜３０個がよく、好ましくは１５〜２５個
である。The number of protrusions 3b in part (2) is usually determined by the unit area (c
10 to 30 pieces per m), preferably 15 to 25 pieces.
このように、金属薄板２が、弾性の小さい部分（１）を
有することにより、前述した積層シートの巻回時に、金
属薄板２が負極板１から剥離しようとする外方向への復
元力は、小さくなり、その結果、両者間の剥離の可能性
が小さくなる。又、バネ性の大きい部分（２）を有する
ことにより、電池容器内に挿入後巻回終端部復元力が大
きくなり、その大きな外方向への弾発力により部分（２
）の突起３ｂの内壁との接触圧が高くなり、両者は、良
好な導通常態を得ることができる。As described above, since the thin metal plate 2 has the portion (1) with low elasticity, the outward restoring force that causes the thin metal plate 2 to peel off from the negative electrode plate 1 when the above-mentioned laminated sheet is wound is As a result, the possibility of delamination between the two is reduced. In addition, by having the portion (2) with high springiness, the restoring force at the end of the winding after insertion into the battery container becomes large, and the large outward elastic force causes the portion (2) to
) is increased in contact pressure with the inner wall of the protrusion 3b, and both can obtain a good conductive state.
本発明の電極は次のようにして製造することができる。The electrode of the present invention can be manufactured as follows.
まず、上記した金属薄板２の部分（１）の突起３ａを負
極板２の終端部の外周面に圧接する０両者は、第２図の
ように咬合して密着する。First, the protrusion 3a of the portion (1) of the thin metal plate 2 is brought into pressure contact with the outer circumferential surface of the terminal end of the negative electrode plate 2, and the two engage and come into close contact as shown in FIG.
負極板２の他面（第２図における下面）にセパレータを
介して正極板を積層し、負極板が電極の最外周になるよ
うに渦巻状に巻回する。このとき、巻回終端部では、負
極板に添着されている金属薄板が電極の最外周全体を被
包することが好ましい。A positive electrode plate is laminated on the other surface (lower surface in FIG. 2) of the negative electrode plate 2 with a separator interposed therebetween, and the negative electrode plate is spirally wound so as to be the outermost periphery of the electrode. At this time, it is preferable that the thin metal plate attached to the negative electrode plate covers the entire outermost periphery of the electrode at the end of the winding.
渦巻状に巻回した電極は、金属薄板の部分（２）の突起
３ｂの先端までの外径が電池容器の内径よりわずかに大
きく、金ｆＸｔ’Ｊ板２の周面までの外径がわずかに小
さくなるように全体の形状を定めればよい。The spirally wound electrode has an outer diameter up to the tip of the protrusion 3b of the thin metal plate part (2) that is slightly larger than the inner diameter of the battery container, and an outer diameter up to the circumferential surface of the gold fXt'J plate 2. The overall shape should be determined so that it is as small as possible.
（実施例）
実施例１〜５
表示した材質の厚さ０．０５ｍ＋ａ、幅２５ｍｍ、長さ
５５ｍｍ＋の金属薄板２を用意した。この金属薄板２の
長さ方向３０ｎ＋ｍの部分に表示した高さのエンボス３
ａを加工した。(Example) Examples 1 to 5 A thin metal plate 2 made of the indicated material and having a thickness of 0.05 m+a, a width of 25 mm, and a length of 55 mm+ was prepared. Embossing 3 at the height indicated on the lengthwise 30n+m portion of this thin metal plate 2
Processed a.
エンボス加工３ａをしたのち前者の部分にオーステナイ
ト系ステンレスで１０５０℃、フェライト系ステンレス
で８００℃、ニッケル板で３００°０で、５〜１０分間
熱処理を施し、ここを軟化させて部分（１）とした。そ
の後金属薄板２の他の部分にはエンボス加工により表示
の突起３ｂを形成した。After embossing 3a, the former part is heat treated at 1050°C for austenitic stainless steel, 800°C for ferritic stainless steel, and 300°0 for nickel plate for 5 to 10 minutes to soften it and form part (1). did. Thereafter, projections 3b as shown were formed on other parts of the thin metal plate 2 by embossing.
部分（１）のエンボスを厚さ０．２ｍｍ、幅２５ｍ！＋
。Part (1) is embossed with a thickness of 0.2mm and a width of 25m! +
.
長さ１８０ｍｍの金属リチウム板の端部に圧着し。Crimp the end of a metal lithium plate with a length of 180 mm.
この金属リチウム板の下にセパレータを介して正極板を
積層し、金属リチウム板が電極の最外周になるように巻
回して渦巻状電極にした。A positive electrode plate was laminated under this metal lithium plate with a separator interposed therebetween, and the metal lithium plate was wound to form a spiral electrode so as to be on the outermost periphery of the electrode.
この巻回時に、金属薄板と金属リチウム板との圧着個所
の剥離現象の有無を観察した。この渦巻状に巻回した電
極を電池容器に挿入後、導通状態の安定性をＩ ＫＨ２
の交流インビーダス計を用いて温度２５℃で電池内部抵
抗として測定した。During this winding, the presence or absence of a peeling phenomenon at the crimped portion between the thin metal plate and the metal lithium plate was observed. After inserting this spirally wound electrode into the battery container, the stability of the conduction state is determined by I KH2.
The battery internal resistance was measured at a temperature of 25° C. using an AC Invidus meter.
結果を第１表に示した。The results are shown in Table 1.
実施例６〜１０
表示した材質の、バネ性の小さい部分（１）が厚さ０．
０５ｍｍ、幅２５ｍｍ、長さ３０ｍ層であり、バネ性の
大きい部分（２）が厚さ０．１０ｍａ＋、幅２５ｆｆｉ
ｓ、長さ２５ｍｍである金属薄板２を用意した。この金
属薄板２に厚さの異なる部分を形成させるには、熱間プ
レス（８５０℃）で反復圧延して行なった。部分（１）
に表示したエンボス３ａを形成した。他の部分（２）に
もエンボス加工により表示の突起３ｂを形成した。Examples 6 to 10 The portion (1) with low springiness of the indicated material has a thickness of 0.
05mm, width 25mm, length 30m layer, and the part (2) with high springiness is 0.10ma+ thick and width 25ffi
A thin metal plate 2 having a length of 25 mm was prepared. In order to form portions with different thicknesses on this thin metal plate 2, repeated rolling was performed using a hot press (850° C.). Part (1)
An embossment 3a shown in FIG. Protrusions 3b as shown were also formed in the other portion (2) by embossing.
部分（１）のエンボス部を厚さ０．２０５ｍ、幅２５ｍ
ｍ、長さ１８０ｍｍの金属リチウム板２の端部に圧着し
た。これ以後は、実施例１〜５と同様にして行なった。The embossed part of part (1) has a thickness of 0.205m and a width of 25m.
m, and was crimped to the end of a metal lithium plate 2 having a length of 180 mm. The subsequent steps were carried out in the same manner as in Examples 1 to 5.
結果を第２表に示した。The results are shown in Table 2.
比較例 １
比較のため、エンボス加工による部分（１）と、部分（
２）を有し、部分（１）と部分（２）のバネ性に差を持
たせていない画分された１枚の金属薄板を用意した。そ
の場合の結果を第３表に示した。Comparative Example 1 For comparison, the embossed part (1) and the part (
2), a fractionated thin metal plate with no difference in spring properties between portions (1) and (2) was prepared. The results in that case are shown in Table 3.
［９Ａ明の効果］
以上の説明から明らかなように１本発明の円筒形非水電
解液電池の渦巻状電極において、負極板の巻回終端部に
、エンボス加工による部分（１）と１部分（２）を有し
、該部分（１）よりも弾性の大きい部分（２）とに画分
された金属薄板を添着することで金属薄板から金属リチ
ウム板の剥離が防止されるとともに、圧着状態が良好に
なり、かつ導電性もよくなるため放電特性が安定化して
電池性源を向上させることができ、工業的価値は大であ
る。[9A Light Effect] As is clear from the above description, in the spiral electrode of the cylindrical non-aqueous electrolyte battery of the present invention, there are embossed portions (1) and 1 portion at the winding end of the negative electrode plate. (2) and a portion (2) having greater elasticity than the portion (1), a thin metal plate is attached to the thin metal plate to prevent peeling of the metal lithium plate from the thin metal plate, and to maintain a crimped state. Since the discharge properties are improved and the conductivity is also improved, the discharge characteristics are stabilized and the battery performance can be improved, which is of great industrial value.
第１図は、本発明に係る円筒形非水電解液電池の渦巻状
電極の負極板の終端部に金属薄板を添着した状態を示す
平面図であり、第２図は、第１図の負極板の破線ａにお
ける断面図である。
１・・・・・・負極板（金属リチウム板）２・・・・・
・金属薄板FIG. 1 is a plan view showing a state in which a metal thin plate is attached to the terminal end of the negative electrode plate of the spiral electrode of the cylindrical non-aqueous electrolyte battery according to the present invention, and FIG. 2 is a plan view showing the negative electrode of FIG. FIG. 3 is a cross-sectional view of the plate taken along broken line a. 1... Negative electrode plate (metal lithium plate) 2...
・Thin metal plate
Claims (1)
積層シートを、該負極板が外側に位置するように巻回し
て成る円筒形非水電解液電池の渦巻状電極において、該
負極板の巻回終端部の外側周面に、複数の内方向突起を
有する部分（１）と、複数の外方向突起を有する部分（
２）を有し、該部分（１）よりもバネ性の大きい部分（
２）とに画分された１枚の金属薄板が添着されているこ
とを特徴とする円筒形非水電解液電池の渦巻状電極。 ２、該金属薄板の部分（１）の突起が、エンボス加工に
よって形成されている特許請求の範囲第１項記載の円筒
形非水電解液電池の渦巻状電極。 ３、該金属薄板の部分（１）に金属リチウム板を圧着さ
せて成る特許請求の範囲第１項または第２項記載の円筒
形非水電解液電池の渦巻状電極。 ４、該金属薄板の部分（１）の突起の高さが、金属リチ
ウム板の厚さの１／４以上であり、金属リチウム板の厚
さ以下である特許請求の範囲第１項〜第３項のいずれか
に記載の円筒形非水電解液電池の渦巻状電極。 ５、該金属薄板が、渦巻状電極の最外周を全面被覆して
いる特許請求の範囲第１項〜第４項のいずれかに記載の
円筒形非水電解液電池の渦巻状電極。[Claims] 1. A spiral-shaped cylindrical non-aqueous electrolyte battery formed by winding a laminated sheet with a separator interposed between a positive electrode plate and a negative electrode plate so that the negative electrode plate is located on the outside. In the electrode, a portion (1) having a plurality of inward protrusions and a portion (1) having a plurality of outward protrusions are formed on the outer circumferential surface of the winding end portion of the negative electrode plate.
2) and has a greater springiness than the portion (1) (
2) A spiral electrode for a cylindrical non-aqueous electrolyte battery, characterized in that a single thin metal plate is attached thereto. 2. The spiral electrode for a cylindrical non-aqueous electrolyte battery according to claim 1, wherein the protrusions on the portion (1) of the thin metal plate are formed by embossing. 3. A spiral electrode for a cylindrical non-aqueous electrolyte battery according to claim 1 or 2, comprising a metal lithium plate pressed onto the thin metal plate portion (1). 4. Claims 1 to 3, wherein the height of the protrusion of the portion (1) of the metal thin plate is 1/4 or more of the thickness of the metal lithium plate and not more than the thickness of the metal lithium plate. The spiral electrode of the cylindrical non-aqueous electrolyte battery according to any one of paragraphs. 5. The spiral electrode for a cylindrical non-aqueous electrolyte battery according to any one of claims 1 to 4, wherein the thin metal plate entirely covers the outermost periphery of the spiral electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61071116A JPS62229761A (en) | 1986-03-31 | 1986-03-31 | Spiral electrode for cylindrical nonaqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61071116A JPS62229761A (en) | 1986-03-31 | 1986-03-31 | Spiral electrode for cylindrical nonaqueous electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62229761A true JPS62229761A (en) | 1987-10-08 |
Family
ID=13451269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61071116A Pending JPS62229761A (en) | 1986-03-31 | 1986-03-31 | Spiral electrode for cylindrical nonaqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62229761A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038457C (en) * | 1990-04-06 | 1998-05-20 | 松下电器产业株式会社 | Layer build manganese dry cell |
| WO1999059213A1 (en) * | 1998-05-08 | 1999-11-18 | Eveready Battery Company, Inc. | Destruction controlling mechanism for an electrochemical cell |
| JP2001038475A (en) * | 1999-07-29 | 2001-02-13 | Denso Corp | Jointing method of laminating material, and battery |
-
1986
- 1986-03-31 JP JP61071116A patent/JPS62229761A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038457C (en) * | 1990-04-06 | 1998-05-20 | 松下电器产业株式会社 | Layer build manganese dry cell |
| WO1999059213A1 (en) * | 1998-05-08 | 1999-11-18 | Eveready Battery Company, Inc. | Destruction controlling mechanism for an electrochemical cell |
| JP2001038475A (en) * | 1999-07-29 | 2001-02-13 | Denso Corp | Jointing method of laminating material, and battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4817871B2 (en) | battery | |
| US8227107B2 (en) | Cylindrical secondary battery having structure in which electrode assembly is connected with sealing cover via combination of current collector plate and current collector lead | |
| US7332246B2 (en) | Galvanic element with a set of wound electrodes | |
| JP2000311714A (en) | Nonaqueous electrolyte secondary battery | |
| US5851244A (en) | methods of forming thin profile batteries and methods of providing sealing gaskets between battery terminal housing members | |
| CN108539113B (en) | Flexible package secondary battery tab and flexible package secondary battery thereof | |
| US20150372336A1 (en) | Mandrel for electrode assemblies | |
| CN213483820U (en) | Cylindrical cathode electrode-free ear lithium ion battery | |
| JPS63175345A (en) | Organic electrolyte battery | |
| CN111354914A (en) | Button battery pole shell and electrode lug traceless welding method, welding structure and product | |
| JPS62229761A (en) | Spiral electrode for cylindrical nonaqueous electrolyte battery | |
| CN211578871U (en) | Prevent utmost point ear and electric core of electric core short circuit | |
| JP4128694B2 (en) | Secondary battery cap assembly and manufacturing method thereof | |
| JP6704826B2 (en) | Electronic component manufacturing method and electronic component | |
| JPS60148058A (en) | Battery | |
| JPH0218544B2 (en) | ||
| JPH09129197A (en) | Sealed battery | |
| JP5078482B2 (en) | Sealed battery and battery can | |
| JP3540459B2 (en) | Battery and manufacturing method thereof | |
| JPH11242961A (en) | Manufacture of nonaqueous electrolyte battery | |
| EP4372857A2 (en) | Cylindrical secondary battery | |
| JP2002170543A (en) | Nonaqueous electrolytic-solution secondary battery | |
| JPS62122069A (en) | Negative plate of cylindrical nonaqueous electrolyte battery | |
| JPH0773860A (en) | Manufacture of square alkaline battery | |
| JPS6026452Y2 (en) | Cylindrical alkaline storage battery |