JPH0355968B2 - - Google Patents
Info
- Publication number
- JPH0355968B2 JPH0355968B2 JP61299704A JP29970486A JPH0355968B2 JP H0355968 B2 JPH0355968 B2 JP H0355968B2 JP 61299704 A JP61299704 A JP 61299704A JP 29970486 A JP29970486 A JP 29970486A JP H0355968 B2 JPH0355968 B2 JP H0355968B2
- Authority
- JP
- Japan
- Prior art keywords
- insulating sleeve
- double layer
- electric double
- shrinkage rate
- metal case
- 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
- 239000003990 capacitor Substances 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 12
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004519 manufacturing 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、電気二重層コンデンサにおいて使用
される熱収縮性の絶縁スリーブに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heat-shrinkable insulating sleeve used in an electric double layer capacitor.
［従来の技術］
電気二重層コンデンサは主としてメモリ・バツ
クアツプ用コンデンサとして使用されているが、
電気容量素子となるセル単体では定格電圧が低い
ために、高電圧を得るためには複数個のセルを積
層した構造が採用されている。[Prior art] Electric double layer capacitors are mainly used as memory backup capacitors, but
Since a single cell serving as a capacitive element has a low rated voltage, a structure in which multiple cells are stacked is used to obtain a high voltage.
積層構造の電気二重層コンデンサにおいては外
装ケースとして通常金属ケースを採用し、積層し
た複数個のセルを金属ケースのカシメ加工により
加圧保持するようにしている。 In an electric double layer capacitor having a laminated structure, a metal case is usually used as the outer case, and a plurality of stacked cells are held under pressure by caulking the metal case.
具体的なケーシング構造を第１図に示す。有底
筒状の金属ケース１内には複数個のセル２が積
層・載置され、さらに第１の電極板３、絶縁板４
および第２の電極板５が組込まれ、金属ケース１
の開口端１ａがカール加工されたものである。な
お、セル２と金属ケース１の電気的な絶縁のため
に、セル２には熱収縮性の絶縁スリーブ６が被覆
されている。外部との電気的な接続は、最上位の
セル２に接続した第１の電極板３の電極端子３ａ
と、最下位のセル２に接続した金属ケース１の底
部１ｂおよび開口端１ａを介した第２の電極板５
の電極端子５ａとによつて構成される。 The specific casing structure is shown in Figure 1. A plurality of cells 2 are stacked and placed inside a cylindrical metal case 1 with a bottom, and a first electrode plate 3 and an insulating plate 4
and a second electrode plate 5 are incorporated into the metal case 1.
The opening end 1a of the opening end 1a is curled. In order to electrically insulate the cell 2 and the metal case 1, the cell 2 is covered with a heat-shrinkable insulating sleeve 6. Electrical connection with the outside is through the electrode terminal 3a of the first electrode plate 3 connected to the topmost cell 2.
and a second electrode plate 5 connected to the lowest cell 2 via the bottom 1b and open end 1a of the metal case 1.
and an electrode terminal 5a.
［発明が解決しようとする問題点］
ここで、第２図に示した熱収縮前の円筒状絶縁
スリーブ６において、便宜的に開放端方向を縦方
向Ｙと称し、周囲方向を横方向Ｘと称する。この
絶縁スリーブ６の横方向の収縮率が縦方向の収縮
率より大きいと、第１図に示すようにセル２，２
の間に熱収縮した絶縁スリーブ６が食い込み、積
層された相隣たるセル２，２を引き離す方向に力
Ｆが生じ、セル２，２間の接触力を弱めるために
電気二重層コンデンサの等価直列抵抗値が大きく
なつてしまうものであつた。そこで、金属ケース
１の開口端１ａのカール加工時に、上記した力Ｆ
に抗して積層されたセル２に対して外部より大き
な荷重をかけてカール加工し、等価直列抵抗値を
小さくすることも考えられるが、セル２中に含有
された電解液の液漏れが生じ、所定の特性を維持
することができないものである。[Problems to be Solved by the Invention] Here, in the cylindrical insulating sleeve 6 before heat shrinking shown in FIG. to be called. If the shrinkage rate in the horizontal direction of the insulating sleeve 6 is greater than the shrinkage rate in the vertical direction, the cells 2, 2 as shown in FIG.
The heat-shrinked insulating sleeve 6 bites between the layers, and a force F is generated in the direction of separating the stacked adjacent cells 2, 2. In order to weaken the contact force between the cells 2, 2, the equivalent series connection of the electric double layer capacitors The resistance value would become large. Therefore, when curling the open end 1a of the metal case 1, the above-mentioned force F
It is also possible to curl the stacked cells 2 by applying a large load from the outside to reduce the equivalent series resistance value, but this may cause leakage of the electrolyte contained in the cells 2. , it is not possible to maintain predetermined characteristics.
［問題を解決するための手段］
しかるに、本発明は上述した問題点を解決する
ためになされたものであり、具体的には円筒状の
絶縁スリーブの開放端方向（縦方向Ｙ）の収縮率
がその周囲方向（横方向Ｘ）の収縮率と等しい
か、またはそれより大きい熱収縮性の絶縁スリー
ブを使用したものである。[Means for Solving the Problem] However, the present invention has been made to solve the above-mentioned problems, and specifically, the shrinkage rate in the open end direction (vertical direction Y) of a cylindrical insulating sleeve is This uses a heat-shrinkable insulating sleeve whose shrinkage rate in the circumferential direction (lateral direction X) is equal to or larger than that of the sleeve.
［実施例］
実施例 １
直径18.6mm、厚さ2.0mmのコイン状セル２を３
個積層し、縦方向Ｙおよび横方向Ｘの収縮率が同
一の30％で、厚さ100μｍの熱収縮状の絶縁スリ
ーブ６にて被覆し、熱収縮により一体的に固定し
た。これを、金属ケース１内に組込み、さらに第
１の電極板３、絶縁板４および第２の電極板５を
組込み、金属ケース１の開口端１ａをカール加工
し、電気二重層コンデンサを製作した。[Example] Example 1 Three coin-shaped cells 2 with a diameter of 18.6 mm and a thickness of 2.0 mm
They were laminated individually, covered with a heat-shrinkable insulating sleeve 6 having the same shrinkage rate of 30% in the vertical direction Y and the horizontal direction X, and a thickness of 100 μm, and fixed together by heat shrinkage. This was assembled into the metal case 1, the first electrode plate 3, the insulating plate 4, and the second electrode plate 5 were further incorporated, and the open end 1a of the metal case 1 was curled to produce an electric double layer capacitor. .
実施例 ２
縦方向Ｙの収縮率が40％、横方向Ｘの収縮率が
30％の絶縁スリーブ６を使用した以外は実施例１
と同様の電気二重層コンデンサを製作した。Example 2 The shrinkage rate in the vertical direction Y is 40%, and the shrinkage rate in the horizontal direction
Example 1 except that 30% insulation sleeve 6 was used.
An electric double layer capacitor similar to the above was manufactured.
比較例
縦方向Ｙの収縮率が20％、横方向Ｘの収縮率が
30％の絶縁スリーブ６を使用した以外は実施例１
と同様の電気二重層コンデンサを製作した。Comparative example: The shrinkage rate in the vertical direction Y is 20%, and the shrinkage rate in the horizontal direction
Example 1 except that 30% insulation sleeve 6 was used.
An electric double layer capacitor similar to the above was manufactured.
参考例
絶縁スリーブ６を使用しない、実施例１と同様
の電気二重層コンデンサを製作した。この場合、
セル２の周囲が金属ケース１に接触しないように
注意深く製作した。Reference Example An electric double layer capacitor similar to Example 1 without using the insulating sleeve 6 was manufactured. in this case,
The cell 2 was manufactured carefully so that the periphery of the cell 2 did not come into contact with the metal case 1.
次に、実施例１、２、比較例および参考例に示
した電気二重層コンデンサの製作時のコインセル
２に加えられる荷重と電極端子３ａ，５ａ間の等
価直列抵抗値との関係を第３図に示す。比較例は
大きな荷重を加えければ等価直列抵抗値を下げる
ことができないのに対して、実施例１、２は参考
例のように小さな荷重でも等価直列抵抗値を下げ
ることができるものである。なお、絶縁スリーブ
６の厚さの一例として100μｍのものについて述
べたが、70μｍなどそのほかの厚さのものについ
ても同様の傾向の結果が得られた。 Next, FIG. 3 shows the relationship between the load applied to the coin cell 2 and the equivalent series resistance value between the electrode terminals 3a and 5a during the manufacture of the electric double layer capacitors shown in Examples 1 and 2, the comparative example, and the reference example. Shown below. In the comparative example, the equivalent series resistance value cannot be lowered by applying a large load, whereas in Examples 1 and 2, the equivalent series resistance value can be lowered even by a small load as in the reference example. Although the insulating sleeve 6 having a thickness of 100 μm was described as an example, similar results were obtained for other thicknesses such as 70 μm.
［効果］
以上に述べた本発明においては、絶縁スリーブ
の開放端方向（縦方向）の収縮率がその周囲方向
（横方向）の収縮率と等しいか、またはそれより
大きい熱収縮性の絶縁スリーブを使用したので、
熱収縮後の絶縁スリーブのセル間への食い込みが
少ないもので、小さな荷重によつて良好な特性
（等価直列抵抗値）を有する電気二重層コンデン
サを提供することができるものである。[Effect] In the present invention described above, the heat-shrinkable insulating sleeve has a shrinkage rate in the open end direction (vertical direction) of the insulating sleeve that is equal to or larger than the shrinkage rate in the circumferential direction (horizontal direction). Since I used
The insulating sleeve after heat shrinking does not dig into between the cells, and it is possible to provide an electric double layer capacitor with good characteristics (equivalent series resistance value) even under a small load.
第１図は本発明および従来の電気二重層コンデ
ンサを示す部分断面図、第２図は熱収縮前の絶縁
スリーブを示す斜視図および第３図は荷重と等価
直列抵抗値との関係を示す特性図である。
図中、１……金属ケース、２……セル、３，５
……電極板、４……絶縁板、６……熱収縮性の絶
縁スリーブ。
Fig. 1 is a partial sectional view showing the present invention and a conventional electric double layer capacitor, Fig. 2 is a perspective view showing an insulating sleeve before heat shrinkage, and Fig. 3 is a characteristic showing the relationship between load and equivalent series resistance value. It is a diagram. In the figure, 1...Metal case, 2...Cell, 3, 5
...Electrode plate, 4...Insulating plate, 6...Heat-shrinkable insulating sleeve.
Claims (1)
リーブにて被覆した複数個の電気容量素子である
セルを収容し、順に第１の電極板、絶縁板および
第２の電極板を組込んだ電気二重層コンデンサに
おいて、円筒状の絶縁スリーブの開放端方向（縦
方向）の収縮率がその周囲方向（横方向）の収縮
率と等しいか、またはそれより大きい熱収縮性の
絶縁スリーブを使用したことを特徴とする電気二
重層コンデンサ。1 A plurality of cells, which are capacitive elements covered with a heat-shrinkable insulating sleeve, are housed in a bottomed cylindrical metal case, and a first electrode plate, an insulating plate, and a second electrode plate are assembled in order. In electric double layer capacitors, the shrinkage rate in the open end direction (vertical direction) of the cylindrical insulating sleeve is equal to or greater than the shrinkage rate in the circumferential direction (lateral direction). An electric double layer capacitor characterized by its use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61299704A JPS63151011A (en) | 1986-12-16 | 1986-12-16 | Electric double-layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61299704A JPS63151011A (en) | 1986-12-16 | 1986-12-16 | Electric double-layer capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63151011A JPS63151011A (en) | 1988-06-23 |
| JPH0355968B2 true JPH0355968B2 (en) | 1991-08-27 |
Family
ID=17875962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61299704A Granted JPS63151011A (en) | 1986-12-16 | 1986-12-16 | Electric double-layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63151011A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102161768B1 (en) * | 2019-09-06 | 2020-09-29 | 삼화콘덴서공업 주식회사 | High power capacitor |
-
1986
- 1986-12-16 JP JP61299704A patent/JPS63151011A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63151011A (en) | 1988-06-23 |
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