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Ionic liquid electrolytes that include an anionic surfactant and electrochemical devices such as storage batteries comprising them

一种表面活性剂、离子液体的技术，应用在导电盐和阴离子表面活性剂的电解质,一次锂蓄电池或锂离子蓄电池,包括离子液体溶剂,液体电解质,电化学装置或系统,可再充电锂蓄电池包括离子液体溶剂和锂盐的电解质领域，能够解决不具备、扩散系数蓄电池性能不佳等问题，达到低蒸汽压力、不易燃蒸汽压力、实际能力提高的效果

Inactive Publication Date: 2011-06-08
COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0047] That is, there is a need for an ionic liquid electrolyte that has all the advantages of an ionic liquid electrolyte, especially in terms of safe use, without the associated ion (e.g., lithium-ion) mobility, ion (e.g., lithium-ion) Diffusion coefficient and disadvantages in causing poor battery performance

Method used

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  • Ionic liquid electrolytes that include an anionic surfactant and electrochemical devices such as storage batteries comprising them
  • Ionic liquid electrolytes that include an anionic surfactant and electrochemical devices such as storage batteries comprising them
  • Ionic liquid electrolytes that include an anionic surfactant and electrochemical devices such as storage batteries comprising them

Examples

Experimental program
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Embodiment

[0201] An electrolyte according to the present invention comprising an ionic liquid, a lithium salt and an anionic surfactant is prepared.

[0202] ○Ionic liquid is BMIBF 4 or 1-butyl-3-methylimidazolium tetrafluoroborate.

[0203] ○Lithium salt is LiPF 6 or lithium hexafluorophosphate.

[0204] ○ Surfactant is sodium dodecyl sulfate or SDS.

[0205] By dissolving 1.6 mol / l LiPF in an equimolar mixture of ionic liquid solvent BMIBF4 and SDS 6 Prepare electrolytes.

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Abstract

The invention relates to an ionic liquid electrolyte comprising at least one ionic liquid of formula C+A-, where C+ represents a cation and A- represents an anion, and at least one conducting salt, characterized in that it further includes at least one anionic surfactant. The invention also relates to an electrotechnical system and an electrochemical storage battery, in particular a lithium storage battery, such as a button cell, comprising this electrolyte.

Description

technical field [0001] The present invention relates to a liquid electrolyte, in particular to an electrolyte comprising an ionic liquid solvent, a conductive salt and an anionic surfactant. [0002] Therefore, the liquid electrolyte according to the present invention may be referred to as an ionic liquid electrolyte. [0003] More specifically, the present invention relates to an electrolyte for a rechargeable lithium secondary battery (or lithium secondary battery) comprising an ionic liquid solvent and a lithium salt. [0004] The invention also relates to an electrochemical device or system, eg a rechargeable accumulator (or secondary battery), in particular a primary lithium accumulator (battery) or a lithium ion accumulator (battery) comprising such an electrolyte. [0005] In particular, the invention can be used in the field of electrochemical storage, accumulators or batteries, especially lithium accumulators or batteries. Background technique [0006] Generally, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/40H01G11/06H01G11/64
CPCH01M10/0567H01M10/0525H01B1/122H01G9/038H01M10/0569H01M10/0568H01G11/64H01G11/06Y02E60/13Y02E60/12Y02E60/10H01G11/62
Inventor 内莉·吉劳德埃里克·柴内特埃莱娜·劳奥尔特
Owner COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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