JPH0610623Y2 - Cylindrical battery - Google Patents
Cylindrical batteryInfo
- Publication number
- JPH0610623Y2 JPH0610623Y2 JP1988075585U JP7558588U JPH0610623Y2 JP H0610623 Y2 JPH0610623 Y2 JP H0610623Y2 JP 1988075585 U JP1988075585 U JP 1988075585U JP 7558588 U JP7558588 U JP 7558588U JP H0610623 Y2 JPH0610623 Y2 JP H0610623Y2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- film material
- unit cell
- heat
- exterior film
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 35
- 238000004804 winding Methods 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000012784 inorganic fiber Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000010410 layer Substances 0.000 description 19
- 239000003365 glass fiber Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920006257 Heat-shrinkable film Polymers 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 この考案は、筒形素電池の外周面を外装フィルム材で被
包して構成される筒形電池に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a cylindrical battery configured by enclosing the outer peripheral surface of a cylindrical unit cell with an exterior film material.
〈従来の技術〉 例えば筒形アルカリ電池では、電池缶と端子板とを組合
わせて作った電池ケース内に発電要素を収納した筒形素
電池が使用されている。<Prior Art> For example, in a tubular alkaline battery, a tubular unit battery in which a power generating element is housed in a battery case made by combining a battery can and a terminal plate is used.
この筒形素電池の外装としては、従来より金属製の外装
缶、所謂メタルジャケットが広く用いられていたが、最
近、これに代えて、ＰＶＣフィルムなどの熱収縮性樹脂
フィルムを基材とする外装フィルム材を用いる構成が採
用されている。Conventionally, a metal outer can, so-called metal jacket, has been widely used as the outer casing of this cylindrical unit cell, but recently, instead of this, a heat-shrinkable resin film such as a PVC film is used as a base material. A structure using an exterior film material is adopted.
上記のように素電池の外周を外装フィルム材で被包する
構成を採ることで、素電池の寸法を大きくでき、このた
め発電要素の収納量が増して電池容量が増加する等の利
点があるからである。By adopting the structure in which the outer periphery of the unit cell is covered with the exterior film material as described above, the size of the unit cell can be increased, and thus there is an advantage that the storage capacity of the power generation element is increased and the battery capacity is increased. Because.
このような外装フィルム材としては、厚さ60μｍ程度の
熱収縮性樹脂フィルム層の基材に、印刷層や耐摩ニス層
等を積層して構成される約0.1mmの積層フィルムが使用
され、これを素電池外周面に巻き付け、また素電池外周
面側に設けた糊層にて接着し、更に巻き付け後に加熱す
ることでフィルム材を熱収縮させ、フィルム材の両端を
素電池端面側に折曲させるようにしている。As such an exterior film material, a laminated film having a thickness of about 60 μm, which is formed by laminating a printing layer, an abrasion-resistant varnish layer, etc. on a base material of a heat-shrinkable resin film layer, is used. Is wound around the outer peripheral surface of the unit cell, adhered with a glue layer provided on the outer peripheral surface side of the unit cell, and further heated after winding to shrink the film material and bend both ends of the film material to the end surface side of the unit cell. I am trying to let you.
〈考案が解決しようとする課題〉 しかしながら、このような外装フィルム材は、その厚さ
が0.1mm程度と薄いため、従来のメタルジャケットを用
いた場合に比べて機械的な強度が小さい。<Problems to be Solved by the Invention> However, since such an exterior film material is as thin as about 0.1 mm, its mechanical strength is smaller than that when a conventional metal jacket is used.
このため、例えば電池を電気機器の電池収納ケースに入
れる際、ケース角部が電流取出し用端子の先端角部に引
掛かってフィルム材が破れる等の不都合があり、破れた
面から露出した電池缶外面と負極端子板とが電流取出し
用端子等を介して外部ショートする等の不具合が生じて
いた。For this reason, for example, when the battery is placed in a battery storage case of an electric device, there is a disadvantage that the corner of the case is caught at the tip corner of the current extraction terminal and the film material is torn. There has been a problem that the negative electrode terminal plate and the negative electrode terminal plate are externally short-circuited via the current extracting terminal or the like.
こうした外装フィルム材の破れを防ぐため、例えば基材
である熱収縮性樹脂フィルム層の厚さを増すことも考え
られるが、厚さが増えた分だけ外装フィルム材のコシが
強くなりすぎて素電池外周面への巻き付けがやり難くな
り、また剥れ易くなるので、電池の製造上の支障が出て
くる。この傾向は、径が小さい電池ほど著しく、ＬＲ６
形等の小型電池の場合は特に問題となる。このため、熱
収縮性フィルム層の厚さは自ずと制約され、せいぜい80
μｍ程度が限度である。In order to prevent such breakage of the exterior film material, for example, it is possible to increase the thickness of the heat-shrinkable resin film layer that is the base material, but the increase in the thickness makes the exterior film material too strong and It becomes difficult to wind around the outer peripheral surface of the battery, and it becomes easy to peel off the battery, which causes trouble in manufacturing the battery. This tendency is more remarkable for batteries with smaller diameters, and LR6
This is a particular problem in the case of small batteries of a different shape. Therefore, the thickness of the heat-shrinkable film layer is naturally limited, and at most 80
The limit is about μm.
この考案は、上記のような製造上の支障がなく、また十
分な強度を有する外装フィルム材を備えた筒形電池を提
供することを目的とする。It is an object of the present invention to provide a tubular battery provided with an exterior film material that does not have the above-mentioned manufacturing problems and has sufficient strength.
〈課題を解決するための手段〉 この考案の筒形電池は、発電要素を収納した筒形素電池
の外周面に、熱収縮性樹脂フィルム層を基材とする外装
フィルム材を巻き付けた筒形電池において、前記熱収縮
性樹脂フィルム層に、前記巻き付け方向と直角に配向さ
せた無機物ファイバーを混在させたことを要旨とする。<Means for Solving the Problems> The tubular battery of the present invention is a tubular battery in which an outer film material having a heat-shrinkable resin film layer as a base material is wound around the outer peripheral surface of a tubular unit battery accommodating a power generation element. In the battery, the gist is that the heat shrinkable resin film layer is mixed with inorganic fibers oriented perpendicularly to the winding direction.
上記の無機物ファイバーは、その繊維の長さが50〜500
μｍ程度のものが好ましい。これより短ければ必要なラ
ベル強度が得られない。一方、これより長ければ加熱に
よりフィルム材の両端を素電池端面側に折曲する際にラ
ベルが収縮し難くくなって支障がでるし、また外観性が
低下する。The above inorganic fiber has a fiber length of 50 to 500.
It is preferably about μm. If it is shorter than this, the required label strength cannot be obtained. On the other hand, if the length is longer than this, when the both ends of the film material are bent to the end surface side of the unit cell by heating, the label becomes difficult to shrink, which causes trouble, and the appearance is deteriorated.
このような無機物ファイバーとしては、ガラス繊維や炭
素繊維等がある。Examples of such inorganic fibers include glass fibers and carbon fibers.
〈作用〉 上記のように熱収縮性樹脂フィルム層に無機物ファイバ
ーを混在させることで、外装フィルム材の強度が高ま
る。<Operation> By mixing the inorganic fibers in the heat-shrinkable resin film layer as described above, the strength of the exterior film material is increased.
また、このように無機物ファイバーを素電池への巻き付
け方向と直角に配向させることで、素電池への巻き付け
並びに接着状態等に支障をきたすこともない。Further, by thus orienting the inorganic fibers at right angles to the winding direction around the unit cell, there is no problem in the winding state around the unit cell and the adhesion state.
〈実施例〉 以下に添付の図面を用いて、この考案をアルカリ電池に
適用した実施例を説明する。<Example> An example in which the present invention is applied to an alkaline battery will be described below with reference to the accompanying drawings.
第１図において、電池缶に発電要素を収納後に電池缶開
口部を端子板と封口ガスケットにて密封収納して作った
図中右側の筒形素電池１には、図中左側の外装フィルム
材２が巻回される。この図において、Ｘは外装フィルム
材２を筒形素電池１に装着する際の巻き付け方向を、ま
たＹは後述する無機物ファイバーの配向方向をそれぞれ
示す。In Fig. 1, the cylindrical unit cell 1 on the right side of the drawing, which is made by accommodating the power generation element in the battery can and then sealingly storing the opening of the battery can with the terminal plate and the sealing gasket, has the exterior film material on the left side of the drawing. 2 is wound. In this figure, X indicates the winding direction when mounting the exterior film material 2 on the cylindrical unit cell 1, and Y indicates the orientation direction of the inorganic fibers described later.
この外装フィルム材２は、第２図に示したように、ＰＶ
ＣフィルムやＰＥフィルムなどからできた厚さ40μｍ程
度の熱収縮性樹脂フィルム層2aを基材とし、このフィル
ム層2aの筒形素電池側に約0.05μｍのアルミ蒸着層2bと
約20μｍの粘着剤層2cとを、また反対側には印刷層2dと
約４μｍの耐摩ニス層2eをそれぞれ順次積層して構成さ
れる総厚60μｍ程度のものである。This exterior film material 2 is made of PV as shown in FIG.
Using a heat-shrinkable resin film layer 2a made of C film or PE film and having a thickness of about 40 μm as a base material, an aluminum vapor deposition layer 2b of about 0.05 μm and an adhesive of about 20 μm on the cylindrical unit cell side of this film layer 2a The agent layer 2c and the printing layer 2d on the opposite side and the abrasion-resistant varnish layer 2e having a thickness of about 4 μm are laminated in this order, respectively, and have a total thickness of about 60 μm.
このうち、熱収縮性樹脂フィルム層2aは、電池の巻き付
け方向Ｘに一軸延伸させたもので、それ故、巻き付け後
に適当な温度で加熱することで、この外装フィルム材２
は電池の巻き付け方向Ｘに収縮する。また、この熱収縮
性樹脂フィルム層2aには、長さが50〜500μｍ程度のガ
ラス繊維３が、前記巻き付け方向と直角方向（上記配向
方向Ｙ）に配向させて混ぜられている。Of these, the heat-shrinkable resin film layer 2a is uniaxially stretched in the winding direction X of the battery, and therefore, by heating at an appropriate temperature after winding, the exterior film material 2
Contracts in the winding direction X of the battery. Further, the glass fiber 3 having a length of about 50 to 500 μm is mixed in the heat-shrinkable resin film layer 2a by orienting it in the direction perpendicular to the winding direction (the above-mentioned orientation direction Y).
このようにガラス繊維３を混在させる方法は、例えば、
ＰＶＣの薄層２枚の間にグラスファイバーを挟み、これ
らをローラで熱圧着したものを上記のＰＶＣフィルム層
2aとする方法や、グラスファイバーを含んだ厚いＰＶＣ
板を、電池巻き付け方向と直角方向に圧延する方法など
がある。The method of mixing the glass fibers 3 in this way is, for example,
The glass film is sandwiched between two thin PVC layers, and these are thermocompression-bonded with a roller to obtain the above PVC film layer.
2a method or thick PVC containing glass fiber
There is a method of rolling the plate in a direction perpendicular to the winding direction of the battery.
そして、このような外装フィルム材２を、素電池１の外
周に巻き付けまた粘着剤層2cにより粘着したなら、加熱
して外装フィルム材２を巻き付け方向Ｘに熱収縮させて
素電池外周に密着させ、また外装フィルム材２の両端を
素電池端面側に折曲させる。Then, when such an exterior film material 2 is wrapped around the outer periphery of the unit cell 1 and adhered by the adhesive layer 2c, it is heated to cause the exterior film material 2 to thermally shrink in the winding direction X to be closely attached to the outer periphery of the unit cell. Also, both ends of the exterior film material 2 are bent toward the unit cell end surface side.
次に、実施例の外装フィルム材２の強度を知るため、上
記巻き付け方向Ｘ並びに配向方向Ｙの長さがそれぞれ10
mmの外装フィルム材（本考案品）と、ガラス繊維を混在
させない他は同じ外装フィルム材（比較品）の引張り強
度をそれぞれ測定した所、本考案品は10〜13kgであるの
に対し、比較品では僅かに５〜６kgであり、本考案品は
比較品の約２倍の強度があった。Next, in order to know the strength of the exterior film material 2 of the example, the lengths in the winding direction X and the orientation direction Y are 10 respectively.
When the tensile strength of the exterior film material (invention product) of mm and the same exterior film material (comparative product) except that glass fiber is not mixed are measured, respectively, the present invention product is 10 to 13 kg. The product weighed only 5 to 6 kg, and the product of the present invention was about twice as strong as the comparative product.
〈考案の効果〉 以上のようにこの考案の筒形電池によれば、素電池への
巻き付け並びに接着状態に支障をきたすことなく、外装
フィルム材の強度を高めることができる。<Effect of the Invention> As described above, according to the cylindrical battery of the present invention, the strength of the exterior film material can be increased without hindering the winding state and the adhesion state around the unit cell.
第１図は実施例において筒形素電池の外周面に外装フィ
ルム材を装着する際の説明図、第２図は実施例の電池に
用いる外装フィルム材の断面図である。 １……筒形素電池、２……外装フィルム材。FIG. 1 is an explanatory view of mounting an exterior film material on an outer peripheral surface of a tubular unit cell in an embodiment, and FIG. 2 is a sectional view of the exterior film material used for the battery of the embodiment. 1 ... Cylindrical cell, 2 ... Exterior film material.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 山下 勝博 東京都港区新橋５丁目36番11号 富士電気 化学株式会社内 (56)参考文献 特開 昭61−107656（ＪＰ，Ａ) 実開 昭59−144753（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Katsuhiro Yamashita 5-36-11 Shimbashi, Minato-ku, Tokyo Fuji Electric Chemical Co., Ltd. (56) Reference JP-A-61-107656 (JP, A) 59-144753 (JP, U)
Claims (1)
に、熱収縮性樹脂フィルム層を基材とする外装フィルム
材を巻き付けた筒形電池において、前記熱収縮性樹脂フ
ィルム層に、前記巻き付け方向と直角に配向させた無機
物ファイバーを混在させたことを特徴とする筒形電池。1. A tubular battery in which an outer film material having a heat-shrinkable resin film layer as a base material is wound around an outer peripheral surface of a tubular unit cell accommodating a power-generating element, wherein the heat-shrinkable resin film layer comprises: A cylindrical battery, wherein inorganic fibers oriented perpendicular to the winding direction are mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988075585U JPH0610623Y2 (en) | 1988-06-07 | 1988-06-07 | Cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988075585U JPH0610623Y2 (en) | 1988-06-07 | 1988-06-07 | Cylindrical battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01177861U JPH01177861U (en) | 1989-12-19 |
| JPH0610623Y2 true JPH0610623Y2 (en) | 1994-03-16 |
Family
ID=31300647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988075585U Expired - Lifetime JPH0610623Y2 (en) | 1988-06-07 | 1988-06-07 | Cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610623Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59144753U (en) * | 1983-03-15 | 1984-09-27 | 富士電気化学株式会社 | dry battery |
| JPS61107656A (en) * | 1984-10-30 | 1986-05-26 | Shin Kobe Electric Mach Co Ltd | Sealed lead-acid battery |
-
1988
- 1988-06-07 JP JP1988075585U patent/JPH0610623Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01177861U (en) | 1989-12-19 |
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