JP6417974B2 - Ion conductive solid electrolyte - Google Patents
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- JP6417974B2 JP6417974B2 JP2015015575A JP2015015575A JP6417974B2 JP 6417974 B2 JP6417974 B2 JP 6417974B2 JP 2015015575 A JP2015015575 A JP 2015015575A JP 2015015575 A JP2015015575 A JP 2015015575A JP 6417974 B2 JP6417974 B2 JP 6417974B2
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- 239000007784 solid electrolyte Substances 0.000 title claims description 24
- 239000000126 substance Substances 0.000 claims description 60
- 150000001875 compounds Chemical class 0.000 claims description 41
- 150000002500 ions Chemical class 0.000 claims description 24
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 7
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 7
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims description 3
- 150000001450 anions Chemical class 0.000 claims description 3
- 125000002843 carboxylic acid group Chemical group 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 15
- 238000005259 measurement Methods 0.000 description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 238000010494 dissociation reaction Methods 0.000 description 4
- 230000005593 dissociations Effects 0.000 description 4
- 125000004216 fluoromethyl group Chemical group [H]C([H])(F)* 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 230000002040 relaxant effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 229910052751 metal Chemical class 0.000 description 1
- 239000002184 metal Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
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- Electric Double-Layer Capacitors Or The Like (AREA)
- Conductive Materials (AREA)
- Primary Cells (AREA)
- Secondary Cells (AREA)
- Fuel Cell (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
本発明は、イオン導電性固体電解質に関する。 The present invention relates to an ion conductive solid electrolyte.
従来から知られているイオン導電性材料としては、無機材料を用いた無機固体電解質、有機高分子を用いた高分子固体電解質、水または非水溶媒を用いた液状電解質が挙げられる。 Conventionally known ion conductive materials include inorganic solid electrolytes using inorganic materials, polymer solid electrolytes using organic polymers, and liquid electrolytes using water or non-aqueous solvents.
また、固体と液体の中間的性質を有する液晶材料を用い、液晶材料が有する配向性等の特性を利用した固体電解質が提案されている（特許文献１参照）。固体電解質は形状が液体ではないので、部外への漏れがなく、耐熱性、信頼性、デバイスの小型化に対して液状電解質に比べ有利である。 In addition, a solid electrolyte using a liquid crystal material having an intermediate property between a solid and a liquid and utilizing characteristics such as alignment properties of the liquid crystal material has been proposed (see Patent Document 1). Since the solid electrolyte is not liquid, there is no leakage outside the unit, which is advantageous over the liquid electrolyte in terms of heat resistance, reliability, and device miniaturization.
この液晶材料を用いた固体電解質は、電池などの蓄電デバイスへの応用が期待されているものの、現状ではまだ高温下においてイオン導電性が得られているにすぎない。実際の使用を考慮した場合には、より低温でイオン導電性を示す固体電解質が望まれている。 Although the solid electrolyte using this liquid crystal material is expected to be applied to power storage devices such as batteries, at present, only ionic conductivity is obtained at high temperatures. In consideration of actual use, a solid electrolyte that exhibits ionic conductivity at a lower temperature is desired.
本発明は、前記課題に鑑みてなされたものであり、良好なイオン導電性を有するイオン導電性固体電解質を提供することを目的とする。 This invention is made | formed in view of the said subject, and aims at providing the ion conductive solid electrolyte which has favorable ionic conductivity.
本発明にかかるイオン導電性固体電解質は、化学式（１）で示される化合物を含有することを特徴とする。
化学式（１）の化合物は、屈曲構造を取ることで液晶性は示さないものの、分子間力が適度に緩和されることで分子運動がしやすくなり、その熱運動によってＬｉイオンの動きが良くなるものと推測される。その結果、引用文献に示された化合物に比べ、より低い温度での導電性発現が実現できるものと考えられる。 Although the compound of the chemical formula (1) does not exhibit liquid crystallinity due to the bending structure, the molecular motion is facilitated by moderately relaxing the intermolecular force, and the movement of Li ions is improved by the thermal motion. Presumed to be. As a result, it is considered that the conductivity expression at a lower temperature can be realized as compared with the compound shown in the cited document.
本発明にかかるイオン導電性固体電解質は、化学式（１Ａ）および化学式（２Ａ）で示される化合物のうち少なくとも一方の化合物を含有することを特徴とする。
分子間力を緩和するという点において、化学式（１）で示される化合物のＸは、化学式（２）もしくは化学式（３）で示される基が好ましい。Ｘに存在する２つのメチル基もしくはフルオロメチル基が分子鎖から張り出すことでより効果的に分子間力を緩和していると推測される。また、スルホン酸基はＬｉイオンの解離度が高いという点で、導電性向上に有利となる。 In terms of relaxing intermolecular force, X in the compound represented by the chemical formula (1) is preferably a group represented by the chemical formula (2) or the chemical formula (3). It is presumed that the intermolecular force is more effectively relaxed by extending two methyl groups or fluoromethyl groups present in X from the molecular chain. In addition, the sulfonic acid group is advantageous in improving conductivity in that it has a high degree of dissociation of Li ions.
本発明にかかるイオン導電性固体電解質は、化学式（１Ｂ）および化学式（２Ｂ）で示される化合物のうち少なくとも一方の化合物を含有することを特徴とする。
分子間力を緩和するという点において、化学式（１）で示される化合物のＸは、化学式（２）もしくは化学式（３）で示される基が好ましい。Ｘに存在する２つのメチル基もしくはフルオロメチル基が分子鎖から張り出すことでより効果的に分子間力を緩和していると推測される。また、ホスホン酸基はスルホン酸基に比べるとＬｉイオンの解離度は劣るが、１分子あたり２個のＬｉイオンを導入できるため、導電性向上に有利となる。 In terms of relaxing intermolecular force, X in the compound represented by the chemical formula (1) is preferably a group represented by the chemical formula (2) or the chemical formula (3). It is presumed that the intermolecular force is more effectively relaxed by extending two methyl groups or fluoromethyl groups present in X from the molecular chain. In addition, the phosphonic acid group is inferior in the degree of dissociation of Li ions compared to the sulfonic acid group, but two Li ions can be introduced per molecule, which is advantageous for improving the conductivity.
本発明によれば、良好なイオン導電性を有するイオン導電性固体電解質を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the ion conductive solid electrolyte which has favorable ionic conductivity can be provided.
以下、本実施形態の好適な実施形態について説明する。ただし、本発明にかかるイオン導電性固体電解質は、以下の実施形態に限定されるものではない。 Hereinafter, preferred embodiments of the present embodiment will be described. However, the ion conductive solid electrolyte according to the present invention is not limited to the following embodiments.
本発明にかかるイオン導電性固体電解質は、化学式（１）で示される化合物を含む。 The ion conductive solid electrolyte concerning this invention contains the compound shown by Chemical formula (1).
式中のＲ１は、炭素数６〜２０のアルキル基、アルコキシ基、エチレンオキシド基を示す。分岐状であっても直鎖状であっても良い。また、炭素数が６以上であればＬｉイオンを輸送するために必要な適度な分子運動を得ることが出来て好ましく、炭素数が２０以下であれば、分子全体に占めるＬｉイオンの濃度を過度に下げることがないためより好ましい。 R1 in the formula represents an alkyl group having 6 to 20 carbon atoms, an alkoxy group, or an ethylene oxide group. It may be branched or linear. Further, if the number of carbon atoms is 6 or more, it is preferable to obtain an appropriate molecular motion necessary for transporting Li ions, and if the number of carbon atoms is 20 or less, the concentration of Li ions in the whole molecule is excessive. It is more preferable because it is not lowered.
式中のＡは−Ｏ−（ＣＨ２）ｎ−又は−（ＣＨ２）ｎ−（式中、ｎは１〜２０の整数を示す。）から選ばれる基を示す。（ＣＨ２）ユニットが１以上であればＬｉイオンを輸送するために必要な適度な分子運動を得ることが出来て好ましく、（ＣＨ２）ユニットが２０以下であれば、分子全体に占めるＬｉイオンの濃度を過度に下げることがないためより好ましい。 A in the formula represents a group selected from -O- (CH2) n- or-(CH2) n- (wherein n represents an integer of 1 to 20). If the (CH2) unit is 1 or more, an appropriate molecular motion necessary for transporting Li ions can be obtained, and if the (CH2) unit is 20 or less, the concentration of Li ions in the entire molecule is preferable. It is more preferable because it is not excessively lowered.
式中のＲ２はカルボン酸基（−ＣＯＯＨ）、スルホン酸基（−ＳＯ３Ｈ）及びホスホン酸基（−ＰＯ３Ｈ２）からプロトンを除いた酸残基を示す。ホスホン酸基はＬｉ原子と反応可能な活性部位を２個有している。このためＲ２がホスホン酸基の場合は、Ｌｉイオンを２個導入可能である。スルホン酸基はＬｉイオンの解離度が高いという点で、導電性向上に有利となるためより好ましい。また、ホスホン酸基はスルホン酸基に比べるとＬｉイオンの解離度は劣るが、１分子あたり２個のＬｉイオンを導入できるため、分子全体に占めるＬｉイオンの濃度を向上させることが出来るため好ましい。 R2 in the formula represents an acid residue obtained by removing a proton from a carboxylic acid group (—COOH), a sulfonic acid group (—SO 3 H), and a phosphonic acid group (—PO 3 H 2 ). The phosphonic acid group has two active sites capable of reacting with Li atoms. For this reason, when R2 is a phosphonic acid group, two Li ions can be introduced. The sulfonic acid group is more preferable because it has a high degree of dissociation of Li ions and is advantageous for improving conductivity. In addition, the phosphonic acid group is inferior in the degree of dissociation of Li ions compared to the sulfonic acid group, but since two Li ions can be introduced per molecule, the concentration of Li ions in the entire molecule can be improved, which is preferable. .
式中のＸは化学式（２）〜（５）から選ばれる基を示す。
分子間力を緩和し、分子の熱運動を向上させるという点において、Ｘは、化学式（２）もしくは化学式（３）で示される基がより好ましい。Ｘに存在する２つのメチル基もしくはフルオロメチル基が分子鎖から張り出すことでより効果的に分子間力を緩和していると推測される。 X is more preferably a group represented by the chemical formula (2) or the chemical formula (3) in that the intermolecular force is relaxed and the thermal motion of the molecule is improved. It is presumed that the intermolecular force is more effectively relaxed by extending two methyl groups or fluoromethyl groups present in X from the molecular chain.
式中、ｍはアニオンの価数により定まる整数を示す。 In the formula, m represents an integer determined by the valence of the anion.
化学式（１）で示される化合物を含有することによる効果発現のメカニズムははっきりとしないが、本発明者らは以下のように考えている。 Although the mechanism of the effect expression by containing the compound represented by the chemical formula (1) is not clear, the present inventors consider as follows.
化学式（１）の化合物は、２つのベンゼン環が１つの炭素原子もしくは１つの硫黄原子によって結合しており、この結合部分、つまりＸの部分で屈曲した構造を取るため、このような構造では液晶性を発現することが出来ない。特許文献１に示された化合物のように液晶性を発現させるには、２つのベンゼン環を連結する結合子（Ｘに相当）の主鎖の数を偶数個として、直線構造を取る必要がある。 In the compound of the chemical formula (1), two benzene rings are bonded by one carbon atom or one sulfur atom, and take a structure bent at this bonded portion, that is, the X portion. Sex cannot be expressed. In order to exhibit liquid crystallinity like the compound shown in Patent Document 1, it is necessary to have a linear structure with an even number of main chains of the connector (corresponding to X) connecting two benzene rings. .
つまり、化学式（１）の化合物は、屈曲構造を取ることで液晶性は示さないものの、分子間力が適度に緩和されることで分子運動がしやすくなり、その熱運動によってＬｉイオンの動きが良くなるものと推測される。その結果、引用文献に示された化合物に比べ、より低い温度での導電性発現が実現できるものと考えられる。 In other words, although the compound of the chemical formula (1) does not exhibit liquid crystallinity due to the bent structure, the intermolecular force is moderately relaxed to facilitate the molecular motion, and the thermal motion causes the movement of Li ions. Presumed to improve. As a result, it is considered that the conductivity expression at a lower temperature can be realized as compared with the compound shown in the cited document.
本発明にかかるイオン導電性固体電解質は、上述した化合物、金属塩以外に、ゲル化剤、ポリエチレンオキサイドなどのその他の成分を含んでいてもよい。その他の成分の含有率は、０．２モル％以下とすることが好ましい。 The ion conductive solid electrolyte concerning this invention may contain other components, such as a gelatinizer and a polyethylene oxide, in addition to the compound and metal salt which were mentioned above. The content of other components is preferably 0.2 mol% or less.
本発明にかかるイオン導電性固体電解質は、リチウムイオン電池、燃料電池などの各種デバイスへの適用が可能である。これらデバイスでは、不揮発性のイオン導電性固体電解質が求められているが、本発明にかかるイオン導電性固体電解質は十分に要求特性を満たすことができる。 The ion conductive solid electrolyte according to the present invention can be applied to various devices such as lithium ion batteries and fuel cells. In these devices, a nonvolatile ion conductive solid electrolyte is required, but the ion conductive solid electrolyte according to the present invention can sufficiently satisfy the required characteristics.
以下、実施例及び比較例を挙げて本発明について更に詳しく説明するが、本発明はこれらの実施例に何ら限定されない。 EXAMPLES Hereinafter, although an Example and a comparative example are given and this invention is demonstrated in more detail, this invention is not limited to these Examples at all.
以下に示す手順により、実施例１〜１０および比較例１〜２のイオン導電性測定用サンプルを作製し、イオン導電性評価を行った。 Samples for measuring ion conductivity of Examples 1 to 10 and Comparative Examples 1 and 2 were prepared by the procedure shown below, and ion conductivity was evaluated.
（実施例１）
まず、グローブボックス内でイオン導電性固体電解質の溶液を作製した。化学式（６）の化合物０．０５ｇを２ｍｌのアセトニトリルに溶解させた。
Example 1
First, an ion conductive solid electrolyte solution was prepared in a glove box. 0.05 g of the compound of the chemical formula (6) was dissolved in 2 ml of acetonitrile.
次に、イオン導電性測定用のサンプルを作製した。櫛形ＩＴＯ電極を備えた基板（電極：縦１ｃｍ、横１ｃｍ、ランド：１０μｍ、スペース：１０μｍ、ＥＨＣ社製）に、縦１ｃｍ、横１ｃｍの四角穴を設けた厚さ７０μｍのマスキングテ−プを、電極部分以外がマスキングされるように貼り、当該四角穴に、前記溶液を１００μＬ滴下した。自然乾燥させてアセトニトリルを揮発させた後、マスキングテ−プを剥がし、８０℃で１２時間真空乾燥した。 Next, a sample for measuring ion conductivity was prepared. A masking tape having a thickness of 70 μm provided with a square hole measuring 1 cm in length and 1 cm in width on a substrate (electrode: 1 cm in length, 1 cm in width, land: 10 μm, space: 10 μm, manufactured by EHC) with a comb-shaped ITO electrode The other portions than the electrode portion were masked so as to be masked, and 100 μL of the solution was dropped into the square hole. After natural drying to volatilize acetonitrile, the masking tape was peeled off and vacuum dried at 80 ° C. for 12 hours.
このように準備したイオン導電性測定用セルに対して、昇温させながら交流電圧を印加し、その時の電流値をモニターした。直流電圧ではなく交流電圧を印加したのは、電極界面でのイオンの焼き付きを防ぐためである。具体的には、任意波形ファンクションジェネレータ（ＡＦＧ−２０００、ＧＷ ＩＮＳＴＥＫ社製）により、電圧６Ｖｐｐ、方形波ｄｕｔｙ５０、周波数１ＫＨｚの条件で交流電圧を印加し電流測定を行った。結果を図１に示す。また、電流値が０．１ｍＡを示した時の温度を「電流の立ち上がり温度（℃）」とし、最大到達電流値を「到達電流値（ｍＡ）」とした。その結果を表１に示す。 An AC voltage was applied to the ion conductivity measurement cell prepared in this manner while raising the temperature, and the current value at that time was monitored. The reason why the AC voltage is applied instead of the DC voltage is to prevent the seizure of ions at the electrode interface. Specifically, an AC voltage was applied by an arbitrary waveform function generator (AFG-2000, manufactured by GW INSTEK) under the conditions of a voltage of 6 Vpp, a square wave duty of 50, and a frequency of 1 KHz, and current measurement was performed. The results are shown in FIG. Further, the temperature when the current value showed 0.1 mA was defined as “current rising temperature (° C.)”, and the maximum reached current value was defined as “arrival current value (mA)”. The results are shown in Table 1.
（実施例２）
化学式（６）の化合物を化学式（７）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を表１に示す。
Ionic conductivity was measured in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (7). The results are shown in Table 1.
（実施例３）
化学式（６）の化合物を化学式（８）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を表１に示す。
Ionic conductivity was measured in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (8). The results are shown in Table 1.
（実施例４）
化学式（６）の化合物を化学式（９）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を表１に示す。
Ionic conductivity measurement was performed in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (9). The results are shown in Table 1.
（実施例５）
化学式（６）の化合物を化学式（１０）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を表１に示す。
Ionic conductivity was measured in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (10). The results are shown in Table 1.
（実施例６）
化学式（６）の化合物を化学式（１１）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を表１に示す。
Ionic conductivity measurement was performed in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (11). The results are shown in Table 1.
（実施例７）
化学式（６）の化合物を化学式（１２）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を表１に示す。
Ionic conductivity measurement was performed in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (12). The results are shown in Table 1.
（実施例８）
化学式（６）の化合物を化学式（１３）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を表１に示す。
Ionic conductivity was measured in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (13). The results are shown in Table 1.
（実施例９）
化学式（６）の化合物を化学式（１４）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を表１に示す。
Ionic conductivity was measured in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (14). The results are shown in Table 1.
（実施例１０）
化学式（６）の化合物を化学式（１５）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を表１に示す。
Ionic conductivity was measured in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (15). The results are shown in Table 1.
（比較例１）
化学式（６）の化合物を化学式（１６）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を図２および表１に示す。
Ionic conductivity was measured in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (16). The results are shown in FIG.
（比較例２）
化学式（６）の化合物を化学式（１７）の化合物に変更する以外は、実施例１と同様にしてイオン導電性測定を行った。結果を図２および表１に示す。
Ionic conductivity was measured in the same manner as in Example 1 except that the compound of the chemical formula (6) was changed to the compound of the chemical formula (17). The results are shown in FIG.
実施例１〜１０と比較例１〜２との比較より、イオン導電性固体電解質が化学式（１）で示される化合物を含むことで、より低温でのイオン導電性と優れた電流値が確認された。 From comparison between Examples 1 to 10 and Comparative Examples 1 and 2, the ion conductive solid electrolyte contains a compound represented by the chemical formula (1), thereby confirming ion conductivity at a lower temperature and an excellent current value. It was.
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