NONAQUEOUS ELECTROLYTE SOLUTION, AND POWER STORAGE DEVICE ARRANGED BY USE THEREOF

To provide a nonaqueous electrolyte solution which can suppress a generated gas and the resistance with good balance to enhance the battery characteristic in a power storage device, and a power storage device arranged by use thereof.SOLUTION: A nonaqueous electrolyte solution for a power storage dev...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KURIHARA YOSHINORI, YASO YUSUKE
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:To provide a nonaqueous electrolyte solution which can suppress a generated gas and the resistance with good balance to enhance the battery characteristic in a power storage device, and a power storage device arranged by use thereof.SOLUTION: A nonaqueous electrolyte solution for a power storage device comprises at least one sulfide compound represented by the general formula (I) below (where R1-R4 independently represent an alkyl group with 1-8 carbon atoms, of which at least one hydrogen atom may be substituted with a fluorine atom, R1 and R2, and/or R3 and R4 may form a ring together with a nitrogen atom adjacent thereto, and n is 1 or 2), and at least one dinitrile compound represented by the general formula (II) below (where L represents an alkylene group with 1-8 carbon atoms).SELECTED DRAWING: None 【課題】蓄電デバイスにおいて、発生ガスと抵抗をバランス良く抑制し、電池特性を向上できる非水電解液およびそれを用いた蓄電デバイスを提供する。【解決手段】下記一般式(I)で表されるスルフィド化合物を少なくとも一種含み、かつ、下記一般式(II)で表されるジニトリル化合物を少なくとも一種含むことを特徴とする蓄電デバイス用非水電解液。TIFF2022024391000011.tif2378(式中、R1~R4はそれぞれ独立に、少なくとも一つの水素原子がフッ素原子で置換されていてもよい炭素数1~8のアルキル基を示し、R1とR2および/またはR3とR4が隣接する窒素原子とともに環を形成してもよく、nは1または2である。)TIFF2022024391000012.tif879(式中、Lは炭素数1~8のアルキレン基を示す。)【選択図】なし