JPS63211714A - Manufacture of polarizing electrode - Google Patents
Manufacture of polarizing electrodeInfo
- Publication number
- JPS63211714A JPS63211714A JP62045537A JP4553787A JPS63211714A JP S63211714 A JPS63211714 A JP S63211714A JP 62045537 A JP62045537 A JP 62045537A JP 4553787 A JP4553787 A JP 4553787A JP S63211714 A JPS63211714 A JP S63211714A
- Authority
- JP
- Japan
- Prior art keywords
- polarizable electrode
- activated carbon
- electrode
- manufacture
- paper
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 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
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電気二重層キャパシタや電池あるいはエレク
トロクロミックディスプレイに用いる分極性電極の製造
法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for producing polarizable electrodes for use in electric double layer capacitors, batteries, or electrochromic displays.
説明する。ペーパ状の分極性電極としては特開昭５９−
９３２１６号公報に示されているものがある。これは活
性炭繊維とバインダーとから構成されたペーパ状の分極
性電極１の片面にアルミニウム、ニッケル等の導電層２
を形成し、セパレータ３を介し相対向させ、これらを電
解液とともに金属ケース４と封口板５および両者を絶縁
するガスケット６によって密封したものである。explain. As a paper-like polarizable electrode, JP-A-59-
There is one shown in Publication No. 93216. This is a paper-like polarizable electrode 1 made of activated carbon fibers and a binder, and a conductive layer 2 made of aluminum, nickel, etc. on one side.
are formed and placed facing each other with a separator 3 in between, and these are sealed together with an electrolyte by a metal case 4, a sealing plate 5, and a gasket 6 that insulates both.
また活性炭繊維布を分極性電極に用いるものは比表面積
が２５００ｍ２／ｇ と大きくでき、また不純物も少
なく電気二重層キャパシタに適しているが活性炭粉末と
比較すると大変高価でちり、加圧しないと空隙率が９０
％以上占めており（加圧しても６０％以上占める）空間
部分のロスが太きい。In addition, activated carbon fiber cloth that uses polarizable electrodes has a large specific surface area of 2,500 m2/g, and has few impurities, making it suitable for electric double layer capacitors, but compared to activated carbon powder, it is very expensive, generates dust, and has voids unless pressurized. rate is 90
% or more (occupies more than 60% even when pressurized), and the loss in the space is large.
以上のように空間部分が多いだめ、繊維一本どうしの接
触が少なく、接触抵抗が大きくなる。As mentioned above, since there are many spaces, there is little contact between individual fibers, and the contact resistance increases.
発明が解決しようとする問題点
上記のような構成の分極性電極はペーパ状の場合強度を
高めるためにバインダーの含有量が多くなり、抵抗値が
大きくなりインピーダンスも高くなる。また純度が低く
使用電圧を高くできない。Problems to be Solved by the Invention When the polarizable electrode having the above structure is in paper form, the binder content is increased to increase the strength, resulting in a higher resistance value and higher impedance. In addition, the purity is low and the operating voltage cannot be increased.
さらに活性炭繊維布の場合、空間効率が低く高価である
。Furthermore, activated carbon fiber cloth has low space efficiency and is expensive.
本発明は上記問題点を解消し、均一性がよく強度の大き
い分極性電極の型造法である。The present invention solves the above-mentioned problems and provides a molding method for polarizable electrodes with good uniformity and high strength.
問題点を解決するための手段
本発明は、活性炭繊維９５重量部以上と天然パルプ５重
量部以下とアクリル系分散剤５部以下とを湿式混合・抄
造してなるベーパ状の分極性電極の製造法である。Means for Solving the Problems The present invention provides a method for producing a vapor-like polarizable electrode by wet mixing and paper-making 95 parts by weight or more of activated carbon fiber, 5 parts by weight or less of natural pulp, and 5 parts or less of an acrylic dispersant. It is the law.
作 用
上記の構成により、分極性電極の活性炭繊維密度を高め
抵抗を低減しエネルギー密度を高くするとともに、急速
充電に適し、信頼性の高い電気二重層キャパシタを実現
することができる。Operation With the above configuration, it is possible to increase the activated carbon fiber density of the polarizable electrode, reduce the resistance, and increase the energy density, and at the same time, it is possible to realize an electric double layer capacitor that is suitable for rapid charging and has high reliability.
実施例 以下本発明の詳細な説明する。Example The present invention will be explained in detail below.
（実施例１） 表に示した組成の活性炭繊維（フェノール系）。(Example 1) Activated carbon fiber (phenolic) with the composition shown in the table.
天然パルプ、アクリル系分散剤（カチオン性アクリルエ
マルジョン）を湿式混合、抄紙し１ｏｏ ｙＡｒｉｌｔ
厚み５００μｍのベーパ状分極性電極を得た。同表には
ベーパの強度も示しておく。これらを直径１３ｍｍのベ
レット状とし、片面に集電体としてアルミニウム層をプ
ラズマ溶射法を用い２００μｍ形成し分極性電極とした
。Wet-mix natural pulp and acrylic dispersant (cationic acrylic emulsion) and make paper.
A vapor-like polarizable electrode with a thickness of 500 μm was obtained. The same table also shows the strength of vapor. These were made into a pellet shape with a diameter of 13 mm, and a 200 μm aluminum layer was formed as a current collector on one side using a plasma spraying method to form a polarizable electrode.
この分極性電極を用い第３図に示したコイン型電気二重
層キャパシタを構成した。セパレータには、直径１６間
のポリプロピレン製多孔膜を用いた。このセパレータを
介し上記分極性電極を相対向させた後、テトラエチルア
ンモニウムのホウフッ化塩（Ｅｔ４Ｎ ＢＦ４）を電解
質とした１モル／２のプロピレンカーボネート有機電解
液として注入後封口ケーシングし、コイン型キャパシタ
を作成した。A coin type electric double layer capacitor shown in FIG. 3 was constructed using this polarizable electrode. A porous membrane made of polypropylene with a diameter of 16 mm was used as the separator. After the polarizable electrodes were faced to each other through this separator, a 1 mol/2 propylene carbonate organic electrolyte with tetraethylammonium borofluoride salt (Et4N BF4) as an electrolyte was injected into a sealed casing, and a coin-shaped capacitor was formed. Created.
このキャパシタを２．４ｖで充電後１ ｍＡで定電流放
電し、２．２〜２．４Ｆの容量得た。また７０’Ｃの雰
囲気下で常時２．４■を印加したところ初期容量に対す
る１ｏｏｏ時間後の容量減少率は５％であり、分散剤無
添加の物（容量減少率は１１％）に比べ優れている。ま
たパルプ含有量の多い物（Ａ７容量減少率１ｏ−５％）
ｅアクリル系分散剤の多い物（＆６容量減少率９．１％
）さらに強度も強いため加工性にも優れている。強度は
１０間幅、１６０■長のサンプルの引っ張シ強度ドーを
示す。This capacitor was charged at 2.4V and then discharged at a constant current of 1 mA to obtain a capacity of 2.2 to 2.4F. In addition, when 2.4μ was constantly applied in an atmosphere of 70'C, the capacity reduction rate after 100 hours with respect to the initial capacity was 5%, which was superior to the one without the addition of a dispersant (capacity reduction rate was 11%). ing. Also, items with high pulp content (A7 volume reduction rate 1o-5%)
e Items with a large amount of acrylic dispersant (&6 Capacity reduction rate 9.1%
) Furthermore, it is strong and has excellent workability. The strength indicates the tensile strength of a sample with a width of 10 cm and a length of 160 cm.
さらに表中＆１と屋５のキャパシタをそれぞれ１０００
個ずつ作成し容量のばらつきを調べ第１図ａ、ｂに示す
。Ａ１はベーパの均一性の良いことが分かる。Furthermore, the capacitors in &1 and ya5 in the table are each 1000
They were prepared one by one and the variations in capacity were examined as shown in Figures 1a and 1b. It can be seen that A1 has good vapor uniformity.
（実施例２）
正極側分極性電極として実施例１、煮１と同様な電極を
用い、負極としてＳｎとＣｄの重量比が８５：１５の合
金（ウッド合金）にリチウムを吸蔵させた非分極性電極
を用いて電気二重層キャパシタを作成した。本実施例に
おいても他の構成材料は実施例１と同様である。このキ
ャパシタは３ｖの電圧、４．７Ｆの容量を示した。(Example 2) The same electrode as in Example 1 and 1 was used as the positive polarizable electrode, and a non-polarized electrode in which lithium was occluded in an alloy (Wood alloy) with a weight ratio of Sn and Cd of 85:15 was used as the negative electrode. An electric double layer capacitor was created using polar electrodes. In this embodiment, other constituent materials are the same as in the first embodiment. This capacitor exhibited a voltage of 3V and a capacitance of 4.7F.
本発明の分極性電極は、上記のような電気二重層キャパ
シタのみならず電池やエレクトロクロミックディスプレ
イ等に広く使用できる。The polarizable electrode 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.
発明の効果
以上のように、本発明によれば従来よりエネルギー密度
の高い、しかも均一で強度の高い分極性電極が得られる
。Effects of the Invention As described above, according to the present invention, it is possible to obtain a polarizable electrode that has a higher energy density than the conventional one, is uniform, and has high strength.
第１図ａ、ｂは本発明の一実施例の製造法になる電気二
重層キャパシタの特性のバラヅ六を示す特性図、第２図
は分極性電極を用いた電気二重層キャパシタの構成図で
ある。
１・・・・・・分極性電極、２・・・・・・集電体、３
・・・・・・セパレータ、４・・・・・・ケース、６・
・・・・・封口板、６・・・・・・ガスケット。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名イ固
数 （イ固）
佃 数 （４Ｍ）
／−−−へ°−ノく°１欠りｆ１司にノドＬ憤をンＦ区
？−策電俸
３− でノ＼゛レーク
４− ケース
Ｓ−一一封口収Figures 1a and b are characteristic diagrams showing variations in the characteristics of an electric double layer capacitor according to an embodiment of the present invention, and Figure 2 is a configuration diagram of an electric double layer capacitor using polarizable electrodes. be. 1... Polarizable electrode, 2... Current collector, 3
... Separator, 4 ... Case, 6.
... Sealing plate, 6... Gasket. Name of agent: Patent attorney Satoshi Nakao, and 1 other person (4M) /---He°-Noku°1 missing f1 Mr. Toshi Nakao and 1 other person F-ku? -Takuden Salary 3- Deno\゛Rake 4- Case S-11 Entrance Fee
Claims (1)
アクリル系分散剤５重量部以下とを湿式混合抄造しペー
パ状に構成し、その片面に導電層を有する分極性電極の
製造法。A method for producing a polarizable electrode comprising a paper-like structure formed by wet-mixing 95 parts by weight or more of activated carbon fiber, 5 parts by weight or less of natural pulp, and 5 parts by weight or less of an acrylic dispersant, and having a conductive layer on one side of the paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62045537A JPS63211714A (en) | 1987-02-27 | 1987-02-27 | Manufacture of polarizing electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62045537A JPS63211714A (en) | 1987-02-27 | 1987-02-27 | Manufacture of polarizing electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63211714A true JPS63211714A (en) | 1988-09-02 |
Family
ID=12722129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62045537A Pending JPS63211714A (en) | 1987-02-27 | 1987-02-27 | Manufacture of polarizing electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63211714A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6134918A (en) * | 1984-07-27 | 1986-02-19 | 松下電器産業株式会社 | Electric double layer capacitor |
| JPS6240011A (en) * | 1985-08-13 | 1987-02-21 | 松下電器産業株式会社 | Polarizing electrode and manufacture thereof |
-
1987
- 1987-02-27 JP JP62045537A patent/JPS63211714A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6134918A (en) * | 1984-07-27 | 1986-02-19 | 松下電器産業株式会社 | Electric double layer capacitor |
| JPS6240011A (en) * | 1985-08-13 | 1987-02-21 | 松下電器産業株式会社 | Polarizing electrode and manufacture thereof |
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