JPS6332166B2 - - Google Patents
Info
- Publication number
- JPS6332166B2 JPS6332166B2 JP10916379A JP10916379A JPS6332166B2 JP S6332166 B2 JPS6332166 B2 JP S6332166B2 JP 10916379 A JP10916379 A JP 10916379A JP 10916379 A JP10916379 A JP 10916379A JP S6332166 B2 JPS6332166 B2 JP S6332166B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- display device
- conductor
- counter electrode
- reaction
- 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
Links
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000004040 coloring Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 229910000314 transition metal oxide Inorganic materials 0.000 claims description 6
- 239000003792 electrolyte Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 claims description 2
- 239000012266 salt solution Substances 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 7
- 229910013684 LiClO 4 Inorganic materials 0.000 description 3
- 229910020366 ClO 4 Inorganic materials 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Description
【発明の詳細な説明】
本発明は発色材料にWO3，MO2O3等の遷移金
属酸化物を用いたエレクトロクロミツク表示装置
用対向電極の作成方法にかかわる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a counter electrode for an electrochromic display device using a transition metal oxide such as WO 3 or MO 2 O 3 as a coloring material.
WO3，MoO3等の遷移金属酸化物を発色材料と
するエレクトロクロミツク表示装置は第１図に示
す構造をもつ。ガラス基板１上に被着したIn2O3
―SnO2またはSnO2透明導電体２にさらに遷移金
属酸化物層３を形成する。電解液４にはH2SO4
水溶液あるいはLiClO4等の有機溶液が用いられ
る。発色はWO3やMoO3中にH+やLi+が注入され
ることによつて起こる。また対向電極５にはNi，
Sn等の反応性金属電極、あるいはLixWO3を透明
導電体または金属等の導体上に形成した電極が用
いられる。 An electrochromic display device using a transition metal oxide such as WO 3 or MoO 3 as a coloring material has a structure shown in FIG. In 2 O 3 deposited on glass substrate 1
- further forming a transition metal oxide layer 3 on the SnO 2 or SnO 2 transparent conductor 2; Electrolyte 4 contains H 2 SO 4
An aqueous solution or an organic solution such as LiClO 4 is used. Color development occurs when H + or Li + is injected into WO 3 or MoO 3 . In addition, the counter electrode 5 includes Ni,
A reactive metal electrode such as Sn or an electrode formed of Li x WO 3 on a transparent conductor or a conductor such as metal is used.
とりわけLixWO3電極を使用すると、Li塩を電
解液に用いた場合、
表示極で
WO3＋yLi+＋ye-LiyWO3 (1)
対向電極で
の反応が起こり、電極反応系にClO4 -イオン等の
負イオンが関与しない。このため、系の可逆性が
向上する。従つて、エレクトロクロミツク表示装
置の寿命の向上が計れる。 In particular, when using a Li x WO 3 electrode, when Li salt is used as the electrolyte, at the display electrode WO 3 +yLi + +ye - Li y WO 3 (1) at the counter electrode. reaction occurs, and negative ions such as ClO 4 - ions are not involved in the electrode reaction system. This improves the reversibility of the system. Therefore, the life of the electrochromic display device can be improved.
LixWO3電極は導体上にWO3を蒸着あるいはス
パツタ等により0.1μｍ〜1μｍ程度形成したのち、
WO3被膜側をマイナス極として、他にプラス電
極を設けてLi+を含む溶液、例えばLiClO4のプロ
ピレンカーボネート溶液中に浸漬し、電圧を印加
することによつて作成することができる。 The Li x WO 3 electrode is formed by depositing WO 3 on the conductor to a thickness of about 0.1 μm to 1 μm by vapor deposition or sputtering, and then
It can be produced by setting the WO 3 coating side as a negative electrode and providing a positive electrode on the other side, immersing the electrode in a solution containing Li + , for example, a propylene carbonate solution of LiClO 4 , and applying a voltage.
ところで、(1)式および(2)式から明らかなように
表示装置の発色および消去特性は表示極上の
WO3膜の性質のみならず、対向電極LixWO3の性
質にも大きく依存する。とりわけ、(2)式に対応す
る対向電極での反応の電極電位に依存する。 By the way, as is clear from equations (1) and (2), the coloring and erasing characteristics of the display device are the best for display.
It greatly depends not only on the properties of the WO 3 film but also on the properties of the counter electrode Li x WO 3 . In particular, it depends on the electrode potential of the reaction at the counter electrode corresponding to equation (2).
従つて、エレクトロクロミツク表示装置におい
ては(2)式の反応の電極電位が一定となるように
LixWO3を作成する必要がある。例えば、LiClO4
のプロピレンカーボネート溶液を用いてWO3を
マイナス極として定電圧を一定時間印加して作成
する場合にはWO3の膜厚、形成条件の微妙な違
いによつて作成できるLixWO3の(2)の反応の電極
電位が変わる。このため組み立てた表示装置間の
発・消色特性のばらつきが大きくなる。 Therefore, in an electrochromic display device, the electrode potential for the reaction in equation (2) is kept constant.
Need to create Li x WO 3 . For example, LiClO4
Li x WO 3 ( 2 ) changes the electrode potential of the reaction. For this reason, variations in color development/decolorization characteristics among assembled display devices become large.
しかし、本発明によつてこの欠点は解消でき
る。本発明では導体上に一部をのぞいてWO3を
形成し、一部分で導体と反応性金属を接触させ、
WO3導体および金属ともにLiイオンを含む溶液
中に浸漬することを特徴とする。こうすることに
より例えば約1mol／の濃度のLiClO4のプロピ
レンカーボネート溶液を用いた場合には、
Ｍ＋mLiClO4Ｍ（ClO4）n
＋mLi+＋me-
WO3＋xLi+＋xe-LixWO3 (3)
といつた電池系が構成される。浸漬時間を充分長
く（10分程度）すれば、(3)の反応は平衝の状態に
達する。その後、青く着色したLixWO3電極を液
中から取り出して表示装置の対向電極に使用する
ことができる。 However, this drawback can be overcome by the present invention. In the present invention, WO 3 is formed on a part of the conductor, and the conductor and the reactive metal are brought into contact with a part of the conductor.
It is characterized by immersing both the WO 3 conductor and the metal in a solution containing Li ions. By doing this, for example, when using a propylene carbonate solution of LiClO 4 with a concentration of about 1 mol/mol/ml, M + mLiClO 4 M(ClO 4 ) n + mLi + +me - WO 3 +xLi + +xe - Li x WO 3 (3). A battery system is constructed. If the immersion time is sufficiently long (about 10 minutes), the reaction (3) will reach an equilibrium state. Thereafter, the blue-colored Li x WO 3 electrode can be taken out of the liquid and used as a counter electrode of a display device.
この方法によつて作成したLixWO3電極(2)式の
反応の電極電位のばらつきが少なくなり、デイス
プレイの発色・消去の特性のばらつきも少なくで
きる。 Variations in the electrode potential of the reaction of the Li x WO 3 electrode (2) prepared by this method can be reduced, and variations in the coloring and erasing characteristics of the display can also be reduced.
なお、WO3を形成した導体の一部に接触させ
る金属にはAl，Ni，Co，Fe等の反応性金属を用
いることができる。(2)式の反応の電極電位が所望
の電位となる様に金属を選ぶことができる。 Note that reactive metals such as Al, Ni, Co, and Fe can be used as the metal that is brought into contact with a part of the conductor on which WO 3 is formed. The metal can be selected so that the electrode potential for the reaction in equation (2) is a desired potential.
第１図は遷移金属酸化物を発色材料とするエレ
クトロクロミツク表示装置の構造を示す断面図で
ある。
１…ガラス基板、２…透明導電体、３…遷移金
属酸化物層、４…電解液、５…対向電極。
FIG. 1 is a sectional view showing the structure of an electrochromic display device using a transition metal oxide as a coloring material. DESCRIPTION OF SYMBOLS 1... Glass substrate, 2... Transparent conductor, 3... Transition metal oxide layer, 4... Electrolyte, 5... Counter electrode.
Claims (1)
液、対向電極をLixWO3としたエレクトロクロミ
ツク表示装置に用いる対向電極の製造方法におい
て、導体上の一部を除いた部分にWO3を形成し、
該一部の部分に反応性金属を接触せしめ、これを
Liイオンを含む溶液中に浸漬せしめる工程を有す
ることを特徴とするエレクトロクロミツク表示装
置用電極の製造方法。1 In a method for manufacturing a counter electrode used in an electrochromic display device using a transition metal oxide as a coloring material, an electrolyte as a Li salt solution, and a counter electrode as Li form 3 ,
A reactive metal is brought into contact with this part, and this
1. A method for manufacturing an electrode for an electrochromic display device, comprising the step of immersing it in a solution containing Li ions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10916379A JPS5633627A (en) | 1979-08-29 | 1979-08-29 | Production of electrode for electrochromic display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10916379A JPS5633627A (en) | 1979-08-29 | 1979-08-29 | Production of electrode for electrochromic display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5633627A JPS5633627A (en) | 1981-04-04 |
| JPS6332166B2 true JPS6332166B2 (en) | 1988-06-28 |
Family
ID=14503237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10916379A Granted JPS5633627A (en) | 1979-08-29 | 1979-08-29 | Production of electrode for electrochromic display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5633627A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6066170A (en) * | 1983-09-20 | 1985-04-16 | Hitachi Maxell Ltd | Detector for residual capacity of secondary battery |
| TWI367385B (en) * | 2006-01-09 | 2012-07-01 | Lg Chemical Ltd | Electrode comprising lithium nickel oxide layer, method for preparing the same, and electrochromic device comprising the same |
| WO2008091099A1 (en) * | 2007-01-22 | 2008-07-31 | Lg Chem, Ltd. | Electrode comprising lithium nickel oxide layer, method for preparing the same, and electrochromic device comprising the same |
-
1979
- 1979-08-29 JP JP10916379A patent/JPS5633627A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5633627A (en) | 1981-04-04 |
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