NONAQUEOUS ELECTROLYTIC SOLUTION AND LITHIUM ION SECONDARY BATTERY CONTAINING THE SAME

To provide an electrolytic solution having an excellent cycle life, capable of suppressing deterioration of battery characteristics even under high temperature condition.SOLUTION: Disclosed is a nonaqueous electrolytic solution containing a compound which contains 5 to 20 wt.% nitrogen atom in a mol...

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Bibliographic Details
Main Authors IGARASHI YOSHIYUKI, MATSUBARA KEIKO
Format Patent
LanguageEnglish
Japanese
Published 15.07.2021
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:To provide an electrolytic solution having an excellent cycle life, capable of suppressing deterioration of battery characteristics even under high temperature condition.SOLUTION: Disclosed is a nonaqueous electrolytic solution containing a compound which contains 5 to 20 wt.% nitrogen atom in a molecule, and 25 to 70 wt.% sulfur atom or oxygen atom, and has no disulfide bond in the molecule. The compound contains two or more sulfur atoms or oxygen atoms in the molecule.SELECTED DRAWING: Figure 1 【課題】高温条件下においても電池特性の低下を抑えることができ、優れたサイクル寿命を有する電解液を提供すること。【解決手段】分子内に５〜２０質量％の窒素原子と、２５〜７０質量％の硫黄原子又は酸素原子とを含有し、かつ分子内にジスルフィド結合を有しない化合物を含む非水系電解液であって、前記化合物は、分子内に２個以上の硫黄原子又は酸素原子を含有する、非水系電解液。【選択図】図１
Bibliography:Application Number: JP20200216845