JPS63299224A - Electric double layer capacitor - Google Patents
Electric double layer capacitorInfo
- Publication number
- JPS63299224A JPS63299224A JP62134035A JP13403587A JPS63299224A JP S63299224 A JPS63299224 A JP S63299224A JP 62134035 A JP62134035 A JP 62134035A JP 13403587 A JP13403587 A JP 13403587A JP S63299224 A JPS63299224 A JP S63299224A
- Authority
- JP
- Japan
- Prior art keywords
- double layer
- conductive sheet
- electric double
- layer capacitor
- cases
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000004743 Polypropylene Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- -1 polypropylene Polymers 0.000 abstract description 3
- 229920001155 polypropylene Polymers 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 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)
Abstract
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関する。[Detailed description of the invention] (Industrial application field) The present invention relates to an electric double layer capacitor.
（従来の技術）
従来の電気二重層は、例えば第２図に示す通り、分極性
電極１１の一面に集電体１２を積層したものを２個、セ
パレータ１３で分離してケース１４に収納し、集電体１
２がケース１４の内壁に当接されるようにした構造とな
っている。また、第３図に示す通り分極性電極１５の一
面に集電体１６を積層しケース１７に収納した構造のも
のもある。(Prior Art) For example, as shown in FIG. 2, a conventional electric double layer is constructed by stacking two current collectors 12 on one surface of a polarizable electrode 11, separating them with a separator 13, and storing them in a case 14. , current collector 1
2 is configured to abut against the inner wall of the case 14. Furthermore, as shown in FIG. 3, there is also a structure in which a current collector 16 is laminated on one surface of a polarizable electrode 15 and housed in a case 17.
（発明が解決しようとする問題点）
しかし、前者の構造では、経時変化や振動により集電体
１２と分極性電極１１の接触が不良となる欠点があり、
また、２個の集電体１２間の距離が長いために等価直列
抵抗（以下ＥＳＲという）が大きく通常放電特性が低下
する欠点があった。(Problems to be Solved by the Invention) However, the former structure has the disadvantage that the contact between the current collector 12 and the polarizable electrode 11 becomes poor due to aging or vibration.
Furthermore, since the distance between the two current collectors 12 is long, the equivalent series resistance (hereinafter referred to as ESR) is large, resulting in a deterioration in normal discharge characteristics.
また、後者の従来例では集電体１６の体積が大きく高価
になる欠点があった。Furthermore, the latter conventional example has the disadvantage that the current collector 16 is large in volume and expensive.
本発明の目的は、以上の欠点を改良し、集電体とケース
との接触不良を防止し、ＥＳＲを低下し、安価な電気二
重層コンデンサを提供するものである。The object of the present invention is to improve the above-mentioned drawbacks, prevent poor contact between the current collector and the case, reduce ESR, and provide an inexpensive electric double layer capacitor.
（問題点を解決するための手段）
本発明は、上記の目的を達成するために、分極性電極を
多孔体の導電性シートにより金属ケースに押え込むこと
を特徴とする電気二重層コンデンサを提供するものであ
る。(Means for Solving the Problems) In order to achieve the above object, the present invention provides an electric double layer capacitor characterized in that a polarizable electrode is pressed into a metal case by a porous conductive sheet. It is something to do.
（作用）
本発明によれば、集電体として導電性シートを用い、こ
の導電性シートにより分極性Ｗｉ極を分離し各々金属ケ
ースに押え込んでいるため、導電性シートと分極性電極
との接触不良を防止でき、また、放電距離が短か＜ＥＳ
Ｒを低下できるため放電特性を改善できる。さらに、＊
’Ｈ性シートを分極性電極のほぼ全面に積層する必要が
なく比較的安価になる。(Function) According to the present invention, a conductive sheet is used as a current collector, and the polarizable Wi electrodes are separated by the conductive sheet and pressed into the metal case, so that the conductive sheet and the polarizable electrode are separated. Can poor contact be prevented and the discharge distance is short?
Since R can be lowered, discharge characteristics can be improved. moreover,*
It is not necessary to laminate the H-type sheet over almost the entire surface of the polarizable electrode, making it relatively inexpensive.
（実施例） 以下、本発明を図示の実施例に基づいて説明゛する。(Example) The present invention will be explained below based on illustrated embodiments.
第１図において、１及び２はカーボン系の分極性電極で
ある。３は分極性電極１及び２を分離しているセパレー
タである。４及び５は、分極性電極１及び２のセパレー
タ３側に積層された多孔性のＩＩ導電性シートあり、Ａ
Ｉ２やＮｉ等のエキスパンドメタルやパンチングメタル
からなる。６及び７は、ステンレス銅、ＡＩやＮｉ等の
金Ｒ製のケースであり、端部で互いにカシメられポリプ
ロピレン等の材質からなるガスケット８により密閉され
ている。そしてケース６及び７の内壁には各々導電性シ
ート４及び５の端子９及び１０がスポット溶接され、各
々分極性電極１及び２をケース６及び７に押え込んでい
る。In FIG. 1, 1 and 2 are carbon-based polarizable electrodes. A separator 3 separates the polarizable electrodes 1 and 2. 4 and 5 have a porous II conductive sheet laminated on the separator 3 side of polarizable electrodes 1 and 2, A
It is made of expanded metal or punched metal such as I2 or Ni. Cases 6 and 7 are made of gold R such as stainless steel copper, AI or Ni, and are caulked together at the ends and hermetically sealed with a gasket 8 made of a material such as polypropylene. Terminals 9 and 10 of conductive sheets 4 and 5 are spot-welded to the inner walls of cases 6 and 7, respectively, and polarizable electrodes 1 and 2 are pressed into cases 6 and 7, respectively.
なお、本発明実施例と従来例とについて容量とＥＳＲを
比較したところ表の通りの結果が得られた。When the capacity and ESR of the embodiment of the present invention and the conventional example were compared, the results shown in the table were obtained.
本発明実施例は第１図の構造とし、以下の条件を満足す
るものとする。The embodiment of the present invention has the structure shown in FIG. 1 and satisfies the following conditions.
分極性電極”：粒子径１６ｍμ、ＤＢＰ法吸油ｆｆ１３
６０ｄ／１００ｇの導電性カーボンブラックに四弗化エ
チレンを
１Ｑｗｔ％混ぜ、らい同機で１０分間
ねり、ロールプレス機で厚さ７００
μｍのシート状とし、直径１５ｍ＋の
円板状に切り出したもの
ケース：内面をＮｉクラッドした厚さ２００μｍのステ
ンレス製
導電性シート：Ｎｉエキスパンドメタルを用い、ケース
に４カ所スポツト溶接す
る。Polarizable electrode: particle size 16 mμ, DBP method oil absorption ff13
60d/100g of conductive carbon black was mixed with 1Qwt% of tetrafluoroethylene, kneaded for 10 minutes using a drying machine, formed into a sheet with a thickness of 700 μm using a roll press, and cut into a disk shape with a diameter of 15m+ Case: A 200 μm thick stainless steel conductive sheet with Ni clad inner surface: Ni expanded metal is used and spot welded to the case at four locations.
セパレータ：厚さ５０μ雇のポリプロピレンフィルム
電解液： ＩＭ ＬｉＣ１０４−ＰＣ（プロピレンカ
ーボネート）
また、従来例１は本発明実施例と同一の材質を用い導電
性シートを集電体とし第２図に示す構造とした。従来例
２は、分極性電極を本発明実施例においで四弗化エチレ
ンを２５ｗｔ％混ぜ、また、導電性シートの代りに無電
解メッキ処理をして第３図に示す構造とする。メッキ処
理は、分極性電極をはじめによく脱脂し、メッキ液とし
てＩＮＧ０８０４にポロン系の還元剤を混入したものを
用いて行う。Separator: Polypropylene film with a thickness of 50μ Electrolyte: IM LiC104-PC (propylene carbonate) Conventional Example 1 uses the same material as the embodiment of the present invention, uses a conductive sheet as the current collector, and has the structure shown in FIG. And so. Conventional Example 2 has the structure shown in FIG. 3, in which the polarizable electrode is mixed with 25 wt % of tetrafluoroethylene in the same manner as in the embodiment of the present invention, and is subjected to electroless plating instead of the conductive sheet. In the plating process, the polarizable electrodes are first thoroughly degreased, and a plating solution containing ING0804 mixed with a poron-based reducing agent is used.
表
表から明らかな通り、本発明は従来例１に比べてＥＳＲ
が１／２となる。また、本発明は従来例２に比べて容量
が大きく、一般的に放電時間を長くできる。As is clear from the table, the present invention has a higher ESR than conventional example 1.
becomes 1/2. Furthermore, the present invention has a larger capacity than Conventional Example 2, and can generally lengthen the discharge time.
（発明の効果）
以上の通り、本発明によれば、導電性シートにより分極
性電極をケースに押え込んでいるため導電性シートと分
極性電極との接触不良を防止して信頼性を向上でき、ま
た、ＥＳＲを低下して放電特性を改良でき、比較的安価
な電気二重層コンデンサが得られる。(Effects of the Invention) As described above, according to the present invention, since the polarizable electrode is held in the case by the conductive sheet, poor contact between the conductive sheet and the polarizable electrode can be prevented and reliability can be improved. Furthermore, the ESR can be lowered to improve discharge characteristics, and a relatively inexpensive electric double layer capacitor can be obtained.
第１図は本発明の実施例の正面断面図、第２図及び第３
図は従来の電気二重層コンデンサの正面断面図を示す。
１．２・・・分極性電極、 ４．５・・・導電性シート
、６．７・・・ケース。Figure 1 is a front sectional view of an embodiment of the present invention, Figures 2 and 3 are
The figure shows a front sectional view of a conventional electric double layer capacitor. 1.2... Polarizable electrode, 4.5... Conductive sheet, 6.7... Case.
Claims (2)
ースに押え込むことを特徴とする電気二重層コンデンサ
。(1) An electric double layer capacitor characterized in that a polarizable electrode is pressed into a metal case by a porous conductive sheet.
グメタルである特許請求の範囲第１項記載の電気二重層
コンデンサ。(2) The electric double layer capacitor according to claim 1, wherein the conductive sheet is an expanded metal or a punched metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62134035A JPS63299224A (en) | 1987-05-29 | 1987-05-29 | Electric double layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62134035A JPS63299224A (en) | 1987-05-29 | 1987-05-29 | Electric double layer capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63299224A true JPS63299224A (en) | 1988-12-06 |
Family
ID=15118844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62134035A Pending JPS63299224A (en) | 1987-05-29 | 1987-05-29 | Electric double layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63299224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012129477A (en) * | 2010-12-17 | 2012-07-05 | Ud Trucks Corp | Power storage cell |
-
1987
- 1987-05-29 JP JP62134035A patent/JPS63299224A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012129477A (en) * | 2010-12-17 | 2012-07-05 | Ud Trucks Corp | Power storage cell |
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