JPH11176701A - Developing solution - Google Patents

Developing solution

Info

Publication number
JPH11176701A
JPH11176701A JP9339769A JP33976997A JPH11176701A JP H11176701 A JPH11176701 A JP H11176701A JP 9339769 A JP9339769 A JP 9339769A JP 33976997 A JP33976997 A JP 33976997A JP H11176701 A JPH11176701 A JP H11176701A
Authority
JP
Japan
Prior art keywords
acid
polyvinyl
compound
electrolyte
developing solution
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.)
Granted
Application number
JP9339769A
Other languages
Japanese (ja)
Other versions
JP4022961B2 (en
Inventor
Yasushi Hara
靖 原
Shuichi Okuzono
修一 奥園
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tosoh Corp
Original Assignee
Tosoh Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tosoh Corp filed Critical Tosoh Corp
Priority to JP33976997A priority Critical patent/JP4022961B2/en
Publication of JPH11176701A publication Critical patent/JPH11176701A/en
Application granted granted Critical
Publication of JP4022961B2 publication Critical patent/JP4022961B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13Energy storage using capacitors

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a developing solution without liquid leaking out, which does not make a material forming an electrochemical element deteriorated and which can make the electrochemical element thin and laminated. SOLUTION: In a developing solution, a salt in which polyvinyl imidazolimium compound is set to be a positive ion component is set to be electrolyte. Polyvinyl imidazolimium compound is set to be that expressed by a formula. In the formula, (n) represents an integer not less than 2, and R1 and R2 each represent alkyl groups the carbons number of which is 1-4, and R3 represents an alkyl group hydrogen or carbon number of which is 1-4. In the developing solution, more than one type of acid constituting salt in which the polyvinyl imidazolimium compound is set as a positive ion component is selected from a group constituted of carbon acid and inorganic acid or developing solution which is an aggregate which polyvinyl imidazolium compound cross-linkage is provided.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、電解コンデンサ
ー、電気二重層コンデンサー、二次電池、エレクトロク
ロミック表示素子などに使用する電解液に関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic solution used for an electrolytic capacitor, an electric double layer capacitor, a secondary battery, an electrochromic display device and the like.

【0002】[0002]

【従来の技術】従来、電解液、特に電解コンデンサーな
どの電解液として、特開昭62−145715号公報に
は、芳香族カルボン酸の四級アンモニウム塩を電解質と
したもの、特開昭62−145714号公報には、脂肪
族モノカルボン酸の四級アンモニウム塩を電解質とした
もの、特開昭62−248217号公報には、脂肪族モ
ノカルボン酸の四級アンモニウム塩を電解質としたもの
が知られている。これらの四級アンモニウム塩を電解質
とした電解液は、四級アンモニウムの電気化学的な変質
により、電気化学素子を形成する材料、例えば樹脂、ゴ
ム、金属を劣化させたり、腐食させるなどの問題があっ
た。
2. Description of the Related Art Conventionally, as an electrolytic solution, particularly an electrolytic solution such as an electrolytic capacitor, Japanese Patent Application Laid-Open No. Sho 62-145715 discloses a method in which a quaternary ammonium salt of an aromatic carboxylic acid is used as an electrolyte. JP-A-145714 discloses an electrolyte using a quaternary ammonium salt of an aliphatic monocarboxylic acid, and JP-A-62-248217 discloses an electrolyte using a quaternary ammonium salt of an aliphatic monocarboxylic acid. Have been. Electrolyte solutions using these quaternary ammonium salts as electrolytes have the problem of deteriorating or corroding materials, such as resins, rubbers and metals, that form electrochemical elements due to the electrochemical alteration of quaternary ammonium. there were.

【0003】これらの問題を解決するものとして、特開
平8−321440号公報には低分子のイミダゾリン化
合物を電解質とする方法が示されている。しかし、低分
子のイミダゾリン化合物を電解質とする方法では、液も
れを完全に抑制することができない。また、液もれの可
能性があるために、電気化学素子の薄型化、積層化が困
難であった。
To solve these problems, Japanese Patent Application Laid-Open No. Hei 8-32440 discloses a method using a low-molecular-weight imidazoline compound as an electrolyte. However, with a method using a low-molecular-weight imidazoline compound as an electrolyte, liquid leakage cannot be completely suppressed. Further, since there is a possibility of liquid leakage, it has been difficult to reduce the thickness and stack the electrochemical devices.

【0004】[0004]

【発明が解決しようとする課題】上記の様に、従来提案
されてきた電解液は、電気化学素子を形成する材料を劣
化させ、完全には液もれを抑制することができなかっ
た。そのため電気化学素子の薄型化、積層化が可能な液
漏れのない電解液の開発が望まれていた。
As described above, the electrolyte solutions proposed hitherto degrade the material forming the electrochemical element and cannot completely suppress the leakage. Therefore, there has been a demand for the development of an electrolyte solution that can reduce the thickness and stack the electrochemical elements and has no liquid leakage.

【0005】本発明は、電気化学素子を形成する材料を
劣化させず、電気化学素子の薄型化、積層化が可能な液
漏れのない電解液を提供することを目的とするものであ
る。
SUMMARY OF THE INVENTION An object of the present invention is to provide an electrolyte solution which does not deteriorate the material forming the electrochemical element and which can be thinned and laminated without causing any leakage.

【0006】[0006]

【課題を解決するための手段】本発明者らは、電解液に
ついて鋭意検討した結果、ポリビニルイミダゾリニウム
化合物を陽イオン成分とする塩を電解質として使用する
ことによって、液漏れの無い電解液が得られるという新
規な事実を見いだし、本発明を完成させるに至った。
Means for Solving the Problems As a result of intensive studies on the electrolyte, the present inventors have found that the use of a salt containing a polyvinyl imidazolinium compound as a cation component as an electrolyte allows the electrolyte without leakage to be obtained. The present inventors have found a novel fact that it can be obtained, and have completed the present invention.

【0007】すなわち、本発明は、ポリビニルイミダゾ
リニウム化合物を陽イオン成分とする塩を電解質とした
電解液である。
That is, the present invention is an electrolytic solution using a salt containing a polyvinyl imidazolinium compound as a cation component as an electrolyte.

【0008】以下に本発明をさらに詳細に説明する。Hereinafter, the present invention will be described in more detail.

【0009】本発明の電解液において使用されるポリビ
ニルイミダゾリニウム化合物は、以下の化式2で示され
る化合物である。
The polyvinyl imidazolinium compound used in the electrolytic solution of the present invention is a compound represented by the following chemical formula 2.

【0010】[0010]

【化2】 Embedded image

【0011】(nは2以上の整数を、R1 、R2 は炭素
数1〜4のアルキル基を、R3 は水素又は炭素数1〜4
のアルキル基を示す)。
(N is an integer of 2 or more; R 1 and R 2 are alkyl groups having 1 to 4 carbon atoms; R 3 is hydrogen or 1 to 4 carbon atoms;
Represents an alkyl group).

【0012】アルキル基としては、メチル、エチル、プ
ロピル、イソプロピル、ブチル、イソブチル、セカンダ
リーブチル、ターシャリーブチル基が例示される。
Examples of the alkyl group include a methyl, ethyl, propyl, isopropyl, butyl, isobutyl, secondary butyl and tertiary butyl group.

【0013】ポリビニルイミダゾリニウム化合物は架橋
していても良いし、架橋していなくても良いが、架橋し
た方が電解液の保持力が高く、好ましい。
The polyvinyl imidazolinium compound may or may not be cross-linked, but is preferably cross-linked because of its higher retention of the electrolyte.

【0014】本発明の電解液に用いるポリビニルイミダ
ゾリニウムの対イオンの例としては、シュウ酸、マロン
酸、コハク酸、グルタル酸、アジピン酸、ピメリン酸、
スベリン酸、アゼライン酸、セバチン酸、デカンジカル
ボン酸、マレイン酸、フマル酸、フタル酸、イソフタル
酸、テレフタル酸、トリメリット酸、ピロメリット酸、
テトラヒドロフタル酸、ヘキサヒドロフタル酸、シトコ
ラン酸、ジメチルマレイン酸、ニトロフタル酸、チオプ
ロピオン酸、蟻酸、酢酸、プロピオン酸、酪酸、イソ酪
酸、吉草酸、カプロン酸、エナント酸、カプリル酸、ペ
ラルゴン酸、ラウリン酸、ミリスチン酸、ステアリル
酸、ベヘン酸、アクリル酸、メタクリル酸、オレイン
酸、安息香酸、ニトロ安息香酸、けい皮酸、ナフトエ
酸、サリチル酸、マンデル酸、レゾルシル酸などのカル
ボン酸イオン、リン酸、ホウ酸、塩化物、フッ化物、臭
化物、ヨウ化物、ホウフッ酸、過塩素酸、フッ化リン酸
イオンなどが挙げられる。これらの中で好ましいのは、
熱的に安定で、電導度の高いマレイン酸、フタル酸、ア
ジピン酸、安息香酸であり、さらに好ましいのはマレイ
ン酸、フタル酸である。
Examples of the counter ion of polyvinyl imidazolinium used in the electrolyte of the present invention include oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid,
Suberic acid, azelaic acid, sebacic acid, decanedicarboxylic acid, maleic acid, fumaric acid, phthalic acid, isophthalic acid, terephthalic acid, trimellitic acid, pyromellitic acid,
Tetrahydrophthalic acid, hexahydrophthalic acid, cytocholanic acid, dimethylmaleic acid, nitrophthalic acid, thiopropionic acid, formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, caproic acid, enanthic acid, caprylic acid, pelargonic acid, Carboxylates such as lauric acid, myristic acid, stearyl acid, behenic acid, acrylic acid, methacrylic acid, oleic acid, benzoic acid, nitrobenzoic acid, cinnamic acid, naphthoic acid, salicylic acid, mandelic acid, resorcylic acid, and phosphoric acid , Boric acid, chloride, fluoride, bromide, iodide, borofluoric acid, perchloric acid, and fluorophosphate ions. Preferred among these are
Maleic acid, phthalic acid, adipic acid, and benzoic acid, which are thermally stable and have high electric conductivity, are more preferable, and maleic acid and phthalic acid are more preferable.

【0015】本発明の電解液に用いる溶媒としては、ブ
チルアルコール、ベンジルアルコール、エチレングリコ
ール、プロピレングリコール、ジエチレングリコール、
ジプロピレングリコール、グリセリンなどのアルコール
類、エチレングリコールモノメチルエーテル、ジエチレ
ングリコールモノメチルエーテル、エチレングリコール
ジメチルエーテルなどのエーテル類、N,N−ジメチル
ホルムアミド、N,N−ジエチルホルムアミド、N,N
−ジメチルアセトアミド、N−メチルピロリドンなどの
アミド類、1,3−ジメチル−2−イミダゾリジノン、
3−メチルオキサゾリジン−2−オン、ジメチルスルホ
キシド、γ−ブチロラクトン、炭酸ジメチルなどが挙げ
られる。これらの中で特に好ましいのは、電導度が高
く、熱的に安定なエチレングリコール、1,3−ジメチ
ル−2−イミダゾリジノン、3−メチルオキサゾリジン
−2−オン、ブチロラクトンである。これらは単独で使
用しても良いし、2種以上を混合して使用しても良い。
Solvents used in the electrolyte of the present invention include butyl alcohol, benzyl alcohol, ethylene glycol, propylene glycol, diethylene glycol,
Alcohols such as dipropylene glycol and glycerin, ethers such as ethylene glycol monomethyl ether, diethylene glycol monomethyl ether and ethylene glycol dimethyl ether, N, N-dimethylformamide, N, N-diethylformamide, N, N
Amides such as -dimethylacetamide, N-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone,
3-Methyloxazolidine-2-one, dimethylsulfoxide, γ-butyrolactone, dimethyl carbonate and the like. Among them, particularly preferred are ethylene glycol, 1,3-dimethyl-2-imidazolidinone, 3-methyloxazolidin-2-one, and butyrolactone, which have high conductivity and are thermally stable. These may be used alone or as a mixture of two or more.

【0016】[0016]

【実施例】以下、本発明を実施例にて説明するが、本発
明はこれらに限定されるものではない。
EXAMPLES Hereinafter, the present invention will be described with reference to Examples, but the present invention is not limited thereto.

【0017】実施例1 ポリアクリロニトリル(平均分子量8万6千)240
g,エチレンジアミン1200g,酢酸144gを2L
のフラスコに入れ、窒素置換した後、昇温を開始した。
90℃で12時間加熱した後、これを冷却し、粘調な赤
色溶液を取り出し、アセトン中に注ぐと、淡黄色の固体
となった。これを乾燥すると一部が架橋した575gの
淡黄色のポリビニルイミダゾリン粉末が得られた。これ
を炭酸ジメチルと反応させ、炭酸ポリビニルジメチルイ
ミダゾリニウムを得た。さらにこれをマレイン酸と反応
させ、マレイン酸ポリビニルジメチルイミダゾリニウム
を得た。
Example 1 Polyacrylonitrile (average molecular weight: 86,000) 240
g, ethylenediamine 1200g, acetic acid 144g 2L
After the flask was purged with nitrogen, the temperature was raised.
After heating at 90 ° C. for 12 hours, the mixture was cooled, a viscous red solution was taken out, and poured into acetone to give a pale yellow solid. When this was dried, 575 g of a partially yellowed polyvinyl imidazoline powder partially crosslinked was obtained. This was reacted with dimethyl carbonate to obtain polyvinyl dimethyl imidazolinium carbonate. This was further reacted with maleic acid to obtain polyvinyldimethylimidazolinium maleate.

【0018】このマレイン酸ポリビニルジメチルイミダ
ゾリニウムに対し、重量で0.6倍のエチレングリコー
ルと2.4倍のγ−ブチロラクトンの混合液を加える
と、マレイン酸ポリビニルジメチルイミダゾリニウムは
混合液の全量を吸液し、ゲル状となった。
When a mixed solution of 0.6 times by weight of ethylene glycol and 2.4 times of γ-butyrolactone is added to this polyvinyl dimethyl imidazolinium maleate, the polyvinyl dimethyl imidazolinium maleate becomes The whole amount was absorbed to form a gel.

【0019】このゲル状電解質の30℃における電導度
は10.1ms/cmであった。
The conductivity of the gel electrolyte at 30 ° C. was 10.1 ms / cm.

【0020】比較例1 マレイン酸1,2,3−トリメチルイミダゾリニウムに
対し、重量で0.6倍のエチレングリコールと2.4倍
のγ−ブチロラクトンの混合液を加えても、マレイン酸
1,2,3−トリメチルイミダゾリニウムはゲル化せ
ず、液状のままであった。
COMPARATIVE EXAMPLE 1 A mixture of 1,2,3-trimethylimidazolinium maleate, 0.6 times by weight of ethylene glycol and 2.4 times of γ-butyrolactone was added to maleic acid. , 2,3-Trimethylimidazolinium did not gel and remained liquid.

【0021】実施例2 実施例1で得た炭酸ポリビニルジメチルイミダゾリニウ
ムをフタル酸と反応させ、フタル酸ポリビニルジメチル
イミダゾリニウムを得た。このフタル酸ポリビニルジメ
チルイミダゾリニウムに対し、重量で0.6倍のエチレ
ングリコールと2.4倍のγ−ブチロラクトンの混合液
を加えると、フタル酸ポリビニルジメチルイミダゾリニ
ウムは混合液の全量を吸液し、ゲル状となった。
Example 2 The polyvinyl dimethyl imidazolinium carbonate obtained in Example 1 was reacted with phthalic acid to obtain polyvinyl dimethyl imidazolinium phthalate. When a mixed solution of 0.6 times by weight of ethylene glycol and 2.4 times of γ-butyrolactone is added to the polyvinyl dimethyl imidazolinium phthalate, the polyvinyl dimethyl imidazolinium phthalate absorbs the entire amount of the mixed solution. It liquified and became a gel.

【0022】このゲル状電解質の30℃における電導度
は11.2ms/cmであった。
The conductivity of the gel electrolyte at 30 ° C. was 11.2 ms / cm.

【0023】[0023]

【発明の効果】本発明の電解液は、液漏れがせず、電導
度が高く、電気化学素子を形成する材料を劣化させず、
電気化学素子の薄型化、積層化が可能な液漏れのない電
解液として使用することが可能である。
The electrolyte of the present invention does not leak, has high conductivity, and does not deteriorate the material forming the electrochemical element.
It can be used as an electrolyte without a liquid leak that can make the electrochemical element thinner and laminated.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】ポリビニルイミダゾリニウム化合物を陽イ
オン成分とする塩を電解質とした電解液。
1. An electrolytic solution comprising a salt containing a polyvinyl imidazolinium compound as a cation component as an electrolyte.
【請求項2】ポリビニルイミダゾリニウム化合物が以下
化式1で表される化合物である請求項1に記載の電解
液。 【化1】 (nは2以上の整数を、R1 、R2 は炭素数1〜4のア
ルキル基を、R3 は水素又は炭素数1〜4のアルキル基
を示す)
2. The electrolytic solution according to claim 1, wherein the polyvinyl imidazolinium compound is a compound represented by the following formula 1. Embedded image (N is an integer of 2 or more, R 1 and R 2 are an alkyl group having 1 to 4 carbon atoms, and R 3 is hydrogen or an alkyl group having 1 to 4 carbon atoms)
【請求項3】ポリビニルイミダゾリニウム化合物を陽イ
オン成分とする塩を構成する酸がカルボン酸、無機酸か
らなる群から選ばれる1種以上である請求項1または請
求項2に記載の電解液。
3. The electrolytic solution according to claim 1, wherein the acid constituting the salt having a polyvinyl imidazolinium compound as a cation component is at least one selected from the group consisting of carboxylic acids and inorganic acids. .
【請求項4】ポリビニルイミダゾリニウム化合物が架橋
した重合体である請求項1乃至請求項3のいずれかの請
求項に記載の電解液。
4. The electrolytic solution according to claim 1, wherein the electrolyte is a crosslinked polymer of a polyvinyl imidazolinium compound.
JP33976997A 1997-12-10 1997-12-10 Electrolyte Expired - Fee Related JP4022961B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33976997A JP4022961B2 (en) 1997-12-10 1997-12-10 Electrolyte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33976997A JP4022961B2 (en) 1997-12-10 1997-12-10 Electrolyte

Publications (2)

Publication Number Publication Date
JPH11176701A true JPH11176701A (en) 1999-07-02
JP4022961B2 JP4022961B2 (en) 2007-12-19

Family

ID=18330638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33976997A Expired - Fee Related JP4022961B2 (en) 1997-12-10 1997-12-10 Electrolyte

Country Status (1)

Country Link
JP (1) JP4022961B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001202995A (en) * 2000-01-17 2001-07-27 Fuji Photo Film Co Ltd Electrolyte composition, electrochemical cell and ionic liquid crystal monomer
US6621684B2 (en) 2000-06-19 2003-09-16 Matsushita Electric Insustrial Co. Ltd. Electric double layer capacitor, electrolytic solution therefore and method for suppressing self-discharge in electronic component
US10763545B2 (en) 2015-07-17 2020-09-01 Samsung Electronics Co., Ltd. Electrolyte for secondary battery, method of preparing electrolyte, and secondary battery including electrolyte

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001202995A (en) * 2000-01-17 2001-07-27 Fuji Photo Film Co Ltd Electrolyte composition, electrochemical cell and ionic liquid crystal monomer
JP4636644B2 (en) * 2000-01-17 2011-02-23 富士フイルム株式会社 Electrolyte composition, electrochemical cell and ionic liquid crystal monomer
US6621684B2 (en) 2000-06-19 2003-09-16 Matsushita Electric Insustrial Co. Ltd. Electric double layer capacitor, electrolytic solution therefore and method for suppressing self-discharge in electronic component
US10763545B2 (en) 2015-07-17 2020-09-01 Samsung Electronics Co., Ltd. Electrolyte for secondary battery, method of preparing electrolyte, and secondary battery including electrolyte
US11424481B2 (en) 2015-07-17 2022-08-23 Samsung Electronics Co., Ltd. Electrolyte for secondary battery, method of preparing electrolyte, and secondary battery including electrolyte

Also Published As

Publication number Publication date
JP4022961B2 (en) 2007-12-19

Similar Documents

Publication Publication Date Title
EP0684620A1 (en) Electrolytic solution and electrochemical element prepared therefrom
JPH10265674A (en) Polymer compound composite material and its production
JP3751048B2 (en) Electrolytic solution and electrochemical device using the same
JPH11176701A (en) Developing solution
CN1669100A (en) Electrolyte for electrochemical capacitor and electrochemical capacitor containing the same
JPH08245828A (en) Polymer composite
JP2003229333A (en) Electrolyte and electrochemical element using the same
JP3391604B2 (en) Electrolytic solution and electrochemical device using the same
JP3220623B2 (en) Electrolytic solution and electrochemical device using the same
JPH11176237A (en) Highpolymer solid electrolyte
JP2001313235A (en) Electrolyte
JP3315812B2 (en) Electrolyte for driving electrolytic capacitors
JP4016218B2 (en) Electrolytic solution for electrolytic capacitors
JP3037704B2 (en) Electrolyte for electrolytic capacitors
JP2875555B2 (en) Electrolyte for electrolytic capacitors
JP2002093665A (en) Electrolytic solution
JPH02194611A (en) Electrolyte for driving electrolytic capacitor
JP2902682B2 (en) Electrolyte for electrolytic capacitors
JP2005033032A (en) Electrolytic solution for electrochemical element and electrochemical element employing the same
JPH04145616A (en) Electrolytic solution for electrolytic capacitor
JP4081617B2 (en) Electrolytic solution for electrolytic capacitors
JP3885836B2 (en) Electrolytic solution for electrolytic capacitors
JP4081616B2 (en) Electrolytic solution for electrolytic capacitors
JP4019230B2 (en) Electrolytic solution for electrolytic capacitors
JP4016219B2 (en) Electrolytic solution for electrolytic capacitors

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20041102

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20061222

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070123

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070911

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070924

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101012

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees