JP6692033B2 - ケイ素含有スルホン酸塩 - Google Patents
ケイ素含有スルホン酸塩 Download PDFInfo
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Description
1.下記式(1)で表されるケイ素含有スルホン酸塩からなる蓄電デバイス用電解質塩。
2.R1が、メチル基又はエチル基である1の蓄電デバイス用電解質塩。
3.nが、2又は3である1又は2の蓄電デバイス用電解質塩。
4.A+が、ナトリウムイオン、カリウムイオン及びリチウムイオンから選ばれる1価の金属イオンである1〜3のいずれかの蓄電デバイス用電解質塩。
5.A+が、式(2)で表される4級アンモニウムイオンである1〜3のいずれかの蓄電デバイス用電解質塩。
6.前記4級アンモニウムイオンが、下記式(2−1)〜(2−4)で表されるものから選ばれる5の蓄電デバイス用電解質塩。
7.A+が、式(3)で表される4級ホスホニウムイオンである1〜3のいずれかの蓄電デバイス用電解質塩。
8.A+が、式(4)で表されるイミダゾリウムイオンである1〜3のいずれかの蓄電デバイス用電解質塩。
9.A+が、式(5)で表されるピリジニウムイオンである1〜3のいずれかの蓄電デバイス用電解質塩。
10.前記ケイ素含有スルホン酸塩が、イオン液体である1〜10のいずれかの蓄電デバイス用電解質塩。
11.下記式(1'')で表されるケイ素含有スルホン酸塩からなるイオン液体。
本発明のケイ素含有スルホン酸塩は、下記式(1)で表されるものである。
カチオンが1価の金属イオンである本発明のケイ素含有スルホン酸塩(下記式(6)で表されるもの)は、例えば、下記スキームAに従って合成することができる。
反応終了後は、通常の後処理を行って目的物を得ることができる。
本発明のケイ素含有スルホン酸塩は、電気二重層キャパシタ、リチウムイオンキャパシタ、レドックスキャパシタ、リチウム二次電池、リチウムイオン二次電池、リチウム空気電池、プロトンポリマー電池等の蓄電デバイスの電解質や電解質用添加剤として使用し得る。更に、本発明のケイ素含有スルホン酸塩は、ゴム、プラスチック等の高分子材料に添加する帯電防止剤や可塑剤等としても使用し得る。
装置:日本電子(株)製 AL−400
溶媒:重水、重ジメチルスルホキシド又は重クロロホルム
[2]融点
装置:セイコーインスツルメンツ(株)製 DSC 6200
測定条件:20〜60℃まで毎分10℃昇温、60℃で1分間保持後、60〜−90℃まで毎分1℃降温、−90℃で1分間保持後、−90〜60℃まで毎分1℃昇温の条件で測定した。
[3]分解点
装置:セイコーインスツルメンツ(株)製 TG−DTA 6200
測定条件:空気雰囲気下、30〜500℃まで毎分10℃昇温の条件で測定し、10%重量減少した温度を分解点とした。
[4]サイクリックボルタンメトリー測定
装置:電気化学測定装置HSV−100(北斗電工(株)製)
測定条件:作用極にグラッシーカーボン電極、対極に白金電極、参照極にAg/Ag+型参照電極を用いて、掃引速度5mV/secで測定を行った。
[実施例1]ケイ素含有スルホン酸ナトリウム塩1の合成
ケイ素含有スルホン酸塩の合成はいずれもカチオン原料のハライド塩を対応する水酸化物に変換したものとアニオン原料のケイ素含有スルホン酸ナトリウム塩(ケイ素含有スルホン酸ナトリウム塩1〜4)を対応するスルホン酸へ変換した後、中和反応により合成した。詳細を以下に示す。
[実施例15〜17、比較例1]
ケイ素含有スルホン酸塩1(実施例15)、8(実施例16)、9(実施例17)、及び1−エチル−3−メチルイミダゾリウムテトラフルオロボレート(EMIBF4)(比較例1)について、サイクリックボルタンメトリー測定を行った。ケイ素含有スルホン酸塩1、8、及びEMIBF4については、各々1Mの炭酸プロピレン溶液を調整し、ケイ素含有スルホン酸塩9については、0.1Mのプロピレンカーボネート溶液を調整し、測定を行った。
結果を図35に示す。図35から明らかなように、既存のイオン液体であるEMIBF4に比し、本発明のケイ素含有スルホン酸塩の電位窓はいずれも広く、電気化学的安定性に優れることがわかった。
Claims (11)
- 下記式(1)で表されるケイ素含有スルホン酸塩からなる蓄電デバイス用電解質塩。
[式中、R1は、炭素数1〜4のアルキル基を表す。mは、1又は2を表す。nは、2〜4の整数を表す。A+は、ナトリウムイオン、カリウムイオン、リチウムイオン、下記式(2)で表される4級アンモニウムイオン、下記式(3)で表される4級ホスホニウムイオン、下記式(4)で表されるイミダゾリウムイオン及び下記式(5)で表されるピリジニウムイオンから選ばれる1価のカチオンを表す。
(式中、R 2 〜R 5 は、それぞれ独立に、炭素数1〜4のアルキル基、又は−(CH 2 ) k −ORで表されるアルコキシアルキル基を表す。kは、1又は2を表す。Rは、メチル基又はエチル基を表す。また、R 2 〜R 5 のいずれか2つが、互いに結合してこれらが結合する窒素原子とともに環を形成してもよく、更に、残りの2つも互いに結合して窒素原子をスピロ原子とするスピロ環を形成してもよい。)
(式中、R 6 は、炭素数1〜12のアルキル基を表す。R 7 は、炭素数1〜20のアルキル基を表す。)
(式中、R 8 及びR 9 は、それぞれ独立に、炭素数1〜4のアルキル基、又は−(CH 2 ) k −ORで表されるアルコキシアルキル基を表す。kは、1又は2を表す。Rは、メチル基又はエチル基を表す。)
(式中、R 10 は、炭素数1〜8のアルキル基、又は−(CH 2 ) k −ORで表されるアルコキシアルキル基を表す。kは、1又は2を表す。Rは、メチル基又はエチル基を表す。)] - R1が、メチル基又はエチル基である請求項1記載の蓄電デバイス用電解質塩。
- nが、2又は3である請求項1又は2記載の蓄電デバイス用電解質塩。
- A+が、ナトリウムイオン、カリウムイオン及びリチウムイオンから選ばれる1価の金属イオンである請求項1〜3のいずれか1項記載の蓄電デバイス用電解質塩。
- A+が、式(2)で表される4級アンモニウムイオンである請求項1〜3のいずれか1項記載の蓄電デバイス用電解質塩。
- 前記4級アンモニウムイオンが、下記式(2−1)〜(2−4)で表されるものから選ばれる請求項5記載の蓄電デバイス用電解質塩。
(式中、R及びkは、前記と同じ。R11〜R14は、それぞれ独立に、炭素数1〜4のアルキル基を表す。R15及びR16は、それぞれ独立に、炭素数1〜4のアルキル基を表す。R15及びR16は、互いに結合してこれらが結合する窒素原子とともに環を形成してもよい。) - A+が、式(3)で表される4級ホスホニウムイオンである請求項1〜3のいずれか1項記載の蓄電デバイス用電解質塩。
- A+が、式(4)で表されるイミダゾリウムイオンである請求項1〜3のいずれか1項記載の蓄電デバイス用電解質塩。
- A+が、下記式(5)で表されるピリジニウムイオンである請求項1〜3のいずれか1項記載の蓄電デバイス用電解質塩。
- 前記ケイ素含有スルホン酸塩が、イオン液体である請求項1〜10のいずれか1項記載の蓄電デバイス用電解質塩。
- 下記式(1'')で表されるケイ素含有スルホン酸塩からなるイオン液体。
[式中、R 1 は、炭素数1〜4のアルキル基を表す。mは、1又は2を表す。nは、2〜4の整数を表す。A + は、下記式(2)で表される4級アンモニウムイオン及び下記式(3)で表される4級ホスホニウムイオンから選ばれる1価のカチオンを表す。
(式中、R 2 〜R 5 は、それぞれ独立に、炭素数1〜4のアルキル基、又は−(CH 2 ) k −ORで表されるアルコキシアルキル基を表す。kは、1又は2を表す。Rは、メチル基又はエチル基を表す。また、R 2 〜R 5 のいずれか2つが、互いに結合してこれらが結合する窒素原子とともに環を形成してもよく、更に、残りの2つも互いに結合して窒素原子をスピロ原子とするスピロ環を形成してもよい。)
(式中、R 6 は、炭素数1〜12のアルキル基を表す。R 7 は、炭素数1〜20のアルキル基を表す。)]
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015230596A JP6692033B2 (ja) | 2015-11-26 | 2015-11-26 | ケイ素含有スルホン酸塩 |
| PCT/JP2016/081073 WO2017090346A1 (ja) | 2015-11-26 | 2016-10-20 | ケイ素含有スルホン酸塩 |
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| JP2015230596A JP6692033B2 (ja) | 2015-11-26 | 2015-11-26 | ケイ素含有スルホン酸塩 |
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| JP2017095416A JP2017095416A (ja) | 2017-06-01 |
| JP6692033B2 true JP6692033B2 (ja) | 2020-05-13 |
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| CN108682567B (zh) * | 2018-05-09 | 2019-09-13 | 中国科学院兰州化学物理研究所 | 一种通过调节电极电压范围构筑高性能超级电容器的方法 |
| JP7404056B2 (ja) * | 2018-12-13 | 2023-12-25 | 三菱ケミカル株式会社 | 非水系電解液及び非水系電解液二次電池 |
| JP2020094009A (ja) * | 2018-12-14 | 2020-06-18 | 日清紡ホールディングス株式会社 | サッカリンアニオンを有するアンモニウム塩 |
| WO2020202280A1 (ja) * | 2019-03-29 | 2020-10-08 | 日清紡ホールディングス株式会社 | 導電性金属ペースト |
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| JP6090561B2 (ja) * | 2012-10-16 | 2017-03-08 | 日清紡ホールディングス株式会社 | 蓄電デバイス用電解質塩及び電解液、並びに蓄電デバイス |
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