JPH047581B2 - - Google Patents
Info
- Publication number
- JPH047581B2 JPH047581B2 JP61012585A JP1258586A JPH047581B2 JP H047581 B2 JPH047581 B2 JP H047581B2 JP 61012585 A JP61012585 A JP 61012585A JP 1258586 A JP1258586 A JP 1258586A JP H047581 B2 JPH047581 B2 JP H047581B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode body
- polarizable electrode
- carbon fiber
- fiber paper
- electric double
- 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
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 15
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 12
- 239000004917 carbon fiber Substances 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000007750 plasma spraying Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- PHXQIAWFIIMOKG-UHFFFAOYSA-N NClO Chemical compound NClO PHXQIAWFIIMOKG-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002023 wood Substances 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
- 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
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
産業上の利用分野
本発明は、電気二重層キヤパシタやエレクトロ
クロミツクデイスプレイ、あるいは電池に用いる
分極性電極体に関する。
従来の技術
従来の技術としては、例えば特開昭60−85508
号公報に示されているものがある。第２図に従来
例のひとつである電気二重層キヤパシタの構成断
面図を示す。分極性電極体１として、セルロース
を結合媒体として抄紙法により作られたペーパ状
の活性炭繊維を用いている。集電体２としてはア
ルミニウム、ニツケル等の金属層あるいは導電性
樹脂層を形成し、セパレータ３を介し、これらを
相対向させたのち電解液を注入後ケース６と封口
板５およびガスケツト４を用い、封口ケーシング
した構成を有する。上記のような構成を有する分
極性電極体は、50μｍ程度にまで薄くすることが
できるとともに、容量の調節が自由にできるとい
う長所を有する一方、厚み方向の導電性が十分で
はなく、電気二重層キヤパシタを急速充電するこ
とが困難である。
発明が解決しようとする問題点
従来の分極性電極体構造では、分極性電極体自
体の抵抗値が大きく、従つて導電性が十分ではな
く、特に厚み方向の抵抗値を改善し、集電能を改
善することが困難である。
問題点を解決するための手段
本発明は上記問題点を解決するため、分極性電
極体に活性炭繊維ペーパと炭素繊維ペーパとを抄
き合わせて二層とし、炭素繊維ペーパ側に集電体
を設けた構成としたものである。
作 用
本発明は上記の構成により、分極性電極体の集
電能、特に厚み方向の集電能を改善し、急速充電
に適した信頼性の高い分極性電極体を実現するも
のである。
実施例
以下本発明の実施例について説明する。なお従
来例と同一要素には同一番号を付した。
実施例 １
第１表に示すような混合組成比の活性炭繊維ペ
ーパと炭素繊維ペーパを作成した。使用したチヨ
ツプ状活性炭繊維は、２〜５mmで直径10μｍの形
状を有し、種類としては、フエノール系（比表
面積2000m2／ｇ）、ピツチ系（比表面積1000
m2／ｇ）、PAN系（比表面積1100m2／ｇ）のも
のである。また炭素繊維にも上記１〜３系原料か
ら製造したものを用いた。比表面積はいずれも５
m2／ｇ以下である。さらに活性炭繊維ペーパＡの
結合剤および炭素繊維ペーパＢの結合媒体には、
天然パルプを使用した。
Ａ、Ｂを抄紙した状態で通常行なわれている抄
き合わせの方法を用いて、ＡとＢを抄き合わせ一
体とする。本実施例におけるＡの目付は100ｇ／
m2、Ｂの目付は50ｇ／m2である。さらに抄き合わ
せ一体となつたペーパの炭素繊維ペーパ側８に集
電体として、アルミニウムの100〜300μｍ層をプ
ラズマ溶射法により形成する７が活性炭繊維ペー
パである。このようにして作成された分極性電極
体を用いて、第１図に示すコイン型電気二重層キ
ヤパシタを作成した。電極体は、直径６mmの円形
であり、電解液には、１モルEt4NClO4のプロピ
レンカーボネート溶液を使用した。第１表の右欄
に本実施例のキヤパシタ（No.１〜８）と、抄き合
わせ構造をもたない従来のペーパ状分極性電極を
用いた場合のキヤパシタ（No.９，10）の容量と、
1KHzでのインピーダンス値を示す。本実施例の
ものの方が低インピーダンスであることがわか
る。
INDUSTRIAL APPLICATION FIELD The present invention relates to a polarizable electrode body used in electric double layer capacitors, electrochromic displays, or batteries. Conventional technology As a conventional technology, for example, Japanese Patent Application Laid-Open No. 60-85508
There are some that are shown in the publication. FIG. 2 shows a cross-sectional view of the structure of an electric double layer capacitor, which is one of the conventional examples. As the polarizable electrode body 1, paper-like activated carbon fibers made by a papermaking method using cellulose as a binding medium are used. As the current collector 2, a metal layer such as aluminum or nickel or a conductive resin layer is formed, and after facing each other through a separator 3, an electrolytic solution is injected, and then a case 6, a sealing plate 5, and a gasket 4 are used. , has a sealed casing configuration. The polarizable electrode body having the above structure has the advantage that it can be made as thin as about 50 μm and the capacitance can be freely adjusted. It is difficult to charge the capacitor quickly. Problems to be Solved by the Invention In the conventional polarizable electrode body structure, the resistance value of the polarizable electrode body itself is large and therefore the conductivity is not sufficient. Difficult to improve. Means for Solving the Problems In order to solve the above problems, the present invention has a polarizable electrode body made of activated carbon fiber paper and carbon fiber paper to form two layers, and a current collector on the carbon fiber paper side. The configuration is as follows. Effects The present invention improves the current collection ability of a polarizable electrode body, particularly the current collection ability in the thickness direction, and realizes a highly reliable polarizable electrode body suitable for rapid charging with the above-described configuration. Examples Examples of the present invention will be described below. Note that the same elements as in the conventional example are given the same numbers. Example 1 Activated carbon fiber paper and carbon fiber paper having a mixed composition ratio as shown in Table 1 were prepared. The tap-shaped activated carbon fibers used had a shape of 2 to 5 mm and a diameter of 10 μm, and the types were phenol type (specific surface area 2000 m 2 /g), pitch type (specific surface area 1000 m 2 /g), etc.
m 2 /g) and PAN type (specific surface area 1100m 2 /g). Also, carbon fibers manufactured from the above-mentioned raw materials 1 to 3 were used. The specific surface area is 5 in both cases.
m 2 /g or less. Furthermore, the binder of activated carbon fiber paper A and the binding medium of carbon fiber paper B include:
Made with natural pulp. After paper A and B are made, A and B are made into a single piece by using the usual method of combining them. The basis weight of A in this example is 100g/
m 2 , the basis weight of B is 50 g/m 2 . 7 is an activated carbon fiber paper in which a 100 to 300 .mu.m layer of aluminum is formed as a current collector on the carbon fiber paper side 8 of the integrated paper by plasma spraying. Using the polarizable electrode body thus produced, a coin-shaped electric double layer capacitor shown in FIG. 1 was produced. The electrode body was circular with a diameter of 6 mm, and a 1 mol Et 4 NClO 4 propylene carbonate solution was used as the electrolyte. The right column of Table 1 shows the capacitors of this example (Nos. 1 to 8) and the capacitors (Nos. 9 and 10) using conventional paper-like polarizable electrodes that do not have a laminated structure. capacity and
Indicates impedance value at 1KHz. It can be seen that the impedance of this example is lower.
【表】
実施例 ２
実施例１における第１表中No.３の構成を有する
分極性電極体に小穴加工（直径1.5mm、２mm間隔）
を行つた後、アルミニウムのプラズマ溶射を行
い、分極性電極体の表面と小穴壁に100〜300μｍ
の集電体層を形成し、第１図と同様な構成材料を
用い、コイン型電気二重層キヤパシタを作成した
ところ、容量値0.16F、1KHzでのインピーダンス
31Ωと、さらに低抵抗なキヤパシタが得られた。
実施例 ３
実施例１における第１表中No.３の構成を有する
分極性電極体にニツケルのプラズマ溶射を行い、
炭素繊維側表面に、ニツケルの集電体層を100〜
300μｍ形成し、第１図と同様なコイン型電気二
重層キヤパシタを作成した。ただし本実施例では
電解液に15wt％の水酸化カリウム水溶液を用い
た。その結果、使用電圧1.0V、容量値0.31F、1K
Hzでのインピーダンス6Ωの特性を有するキヤパ
シタが得られた。
実施例 ４
正極側分極性電極体に実施例１における第１表
中No.３と同様なものを用い、負極側には、Sn／
Cd＝85／15からなる合金（ウツド合金）にリチ
ウムを吸蔵させた非分極性電極体を、電解液には
１モル／のLiClO4を溶解したプロピレンカー
ボネート溶液を用い、電気二重層キヤパシタを作
成したところ、容量値0.30F、1KHzでのインピー
ダンス値39Ωの特性を得た。
本発明の分極性電極体は上記のような電気二重
層キヤパシタのみならず、電池やエレクトロクロ
ミツクデイスプレイ等に広く使用できる。
発明の効果
以上のように、本発明によれば、集電能の優れ
た低抵抗の分極性電極体が得られる。[Table] Example 2 Small holes (diameter 1.5 mm, 2 mm spacing) were made in the polarizable electrode body having the configuration No. 3 in Table 1 in Example 1.
After that, aluminum plasma spraying is performed to coat the surface of the polarizable electrode body and the small hole wall with a thickness of 100 to 300 μm.
When a coin-shaped electric double layer capacitor was created using the same constituent materials as shown in Figure 1, the impedance at a capacitance value of 0.16F and 1KHz was obtained.
A capacitor with an even lower resistance of 31Ω was obtained. Example 3 Nickel plasma spraying was performed on the polarizable electrode body having the configuration of No. 3 in Table 1 in Example 1,
On the carbon fiber side surface, apply a nickel current collector layer of 100~
A coin-shaped electric double layer capacitor similar to that shown in FIG. 1 was fabricated with a thickness of 300 μm. However, in this example, a 15 wt % potassium hydroxide aqueous solution was used as the electrolyte. As a result, working voltage 1.0V, capacitance value 0.31F, 1K
A capacitor with a characteristic of impedance 6Ω at Hz was obtained. Example 4 The same polarizable electrode body as No. 3 in Table 1 in Example 1 was used for the positive electrode side, and Sn/
An electric double layer capacitor was created using a non-polarizable electrode body in which lithium was occluded in an alloy consisting of Cd=85/15 (wood alloy), and a propylene carbonate solution containing 1 mol/LiClO 4 dissolved in the electrolyte. As a result, we obtained characteristics with a capacitance value of 0.30F and an impedance value of 39Ω at 1KHz. The polarizable electrode body of the present invention can be widely used not only in electric double layer capacitors as described above, but also in batteries, electrochromic displays, and the like. Effects of the Invention As described above, according to the present invention, a polarizable electrode body with excellent current collection ability and low resistance can be obtained.
第１図は本発明の分極性電極を用いた電気二重
層キヤパシタの構成断面図、第２図は従来の電気
二重層キヤパシタの構成断面図である。
１……分極性電極体、２……集電体、３……セ
パレータ、４……ガスケツト、５……封口板、６
……ケース、７……活性炭繊維ペーパ、８……炭
素繊維ペーパ。
FIG. 1 is a sectional view of the structure of an electric double layer capacitor using the polarizable electrode of the present invention, and FIG. 2 is a sectional view of the structure of a conventional electric double layer capacitor. DESCRIPTION OF SYMBOLS 1... Polarizable electrode body, 2... Current collector, 3... Separator, 4... Gasket, 5... Sealing plate, 6
...Case, 7...Activated carbon fiber paper, 8...Carbon fiber paper.
Claims (1)
合わせて二層とし、炭素繊維ペーパ側に集電体を
設けた分極性電極体。 ２ 上記分極性電極体に小孔を設けたことを特徴
とする特許請求の範囲第１項記載の分極性電極
体。[Claims] 1. A polarizable electrode body comprising two layers of activated carbon fiber paper and carbon fiber paper, and a current collector provided on the carbon fiber paper side. 2. The polarizable electrode body according to claim 1, wherein a small hole is provided in the polarizable electrode body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61012585A JPS62171108A (en) | 1986-01-23 | 1986-01-23 | Polarizing electrode element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61012585A JPS62171108A (en) | 1986-01-23 | 1986-01-23 | Polarizing electrode element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62171108A JPS62171108A (en) | 1987-07-28 |
| JPH047581B2 true JPH047581B2 (en) | 1992-02-12 |
Family
ID=11809429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61012585A Granted JPS62171108A (en) | 1986-01-23 | 1986-01-23 | Polarizing electrode element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62171108A (en) |
-
1986
- 1986-01-23 JP JP61012585A patent/JPS62171108A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62171108A (en) | 1987-07-28 |
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