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Electrolyte solution and use thereof

一种电解液、支持电解质的技术，应用在电解液领域，能够解决溶剂化与配合物形成不同等问题

Inactive Publication Date: 2011-08-10
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, Patent Document 4 describes BF 3 etc. can be solvated with ether, but solvation and complex formation are obviously different phenomena

Method used

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  • Electrolyte solution and use thereof
  • Electrolyte solution and use thereof
  • Electrolyte solution and use thereof

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Embodiment Construction

[0023] Preferred embodiments of the present invention will be described in detail below. In addition, matters necessary for implementing the present invention as technical matters other than those particularly mentioned in this specification can be understood as design matters by those skilled in the art based on the prior art. The present invention can be implemented based on the contents disclosed in this specification and common technical knowledge in the field.

[0024] The electrolyte disclosed herein is characterized by BF 3 - Cyclic ether complexes are the main solvent. In other words, the main component of the solvent constituting the electrolytic solution, that is, 50% by mass or more is one or two or more BFs 3 - Cyclic ether complexes. Here, BF 3 - Cyclic ether complexes are those with BF 3 part and the cyclic ether part, the lone pair of electrons of the oxygen atom constituting the ether ring and the BF 3 A complex formed by coordination of empty orbitals of...

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Abstract

An electrolyte solution containing a solvent mainly composed of a BF3-cyclic ether complex and a supporting electrolyte. Preferably, the cyclic ether is composed of one or more substances selected from optionally substituted tetrahydrofurans and optionally substituted tetrahydropyrans.

Description

technical field [0001] The present invention relates to an electrolytic solution that can be used as a constituent element of an electrochemical device such as a lithium secondary battery. [0002] In addition, this application claims priority based on Japanese Patent Application No. 2008-233366 for which it applied on September 11, 2008, The content of this application is taken in as a reference in this specification. Background technique [0003] Electrolyte solutions generally used in electrochemical devices such as batteries preferably have properties that are not easily oxidized and reduced. In other words, an electrolyte solution with a wide potential window is preferable. For example, as the electrolytic solution used in lithium secondary batteries in the past, an electrolytic solution in which lithium salt (supporting salt) was dissolved in carbonate-based solvents such as ethylene carbonate, propylene carbonate, and dimethyl carbonate was used, but from the improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/40
CPCY02E60/122H01M2300/0025H01M10/0569H01M10/0568H01M10/052H01M10/0566C07D307/00H01M4/587Y02P70/50Y02E60/10H01M4/583
Inventor 藤波达雄古贺达哉
Owner TOYOTA JIDOSHA KK
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