公开(公告)号：US20140377644A1

公开(公告)日：2014-12-25

申请号：US14306268

申请日：2014-06-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Jun ISHIKAWA, I ,  Rie YOKOI ,  Satoshi SEO ,  Toru ITAKURA ,  Sachiko KAWAKAMI ,  Kaori OGITA

IPC: H01M10/0569 ,  H01M10/0525

CPC classification number: H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M2300/0034 ,  H01M2300/0037 ,  H01M2300/0045 ,  Y02T10/7011

Abstract: A nonaqueous solvent that includes an ionic liquid and has at least one of the following characteristics: high lithium ion conductivity, high lithium ion conductivity in a low temperature environment, high heat resistance, a wide available temperature range, a low freezing point (melting point), low viscosity, and the like. The nonaqueous solvent includes an ionic liquid and a fluorinated solvent. The ionic liquid contains an alicyclic quaternary ammonium cation which has a substituent and a counter anion to the alicyclic quaternary ammonium cation which has the substituent.

Abstract translation: 包含离子液体并且具有以下特征中的至少一个的非水溶剂：锂离子电导率高，低温环境下高锂离子传导性，高耐热性，宽可用温度范围，低凝固点（熔点 ），低粘度等。 非水溶剂包括离子液体和氟化溶剂。 离子液体含有具有取代基的脂环族季铵阳离子和具有取代基的脂环族季铵阳离子的抗衡阴离子。