Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Non-inflammable non aqueous electrolyte and lithium-ion battery containing the same

A non-aqueous electrolyte and electrolyte solution technology, which is applied in the field of high-density lithium salts and solvents with high composition ratios, can solve problems such as the difficulty in completely eliminating the reduction and decomposition of organic phosphate compounds, insufficient usefulness, and poor charge/discharge characteristics of batteries.

Inactive Publication Date: 2006-11-08
JAPAN AEROSPACE EXPLORATION AGENCY
View PDF4 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is practically difficult to completely eliminate the reductive decomposition of the organic phosphate compound based on the addition of these two compounds, and the obtained battery is not insufficient in practical usefulness due to poor charge / discharge characteristics

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-inflammable non aqueous electrolyte and lithium-ion battery containing the same
  • Non-inflammable non aqueous electrolyte and lithium-ion battery containing the same
  • Non-inflammable non aqueous electrolyte and lithium-ion battery containing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The present invention will now be specifically described. First, the nonflammable nonaqueous electrolyte solution of the present invention will be described in detail based on preferred embodiments thereof.

[0042] In the present invention, the compound additive to which the phosphoric acid ester-based electrolytic solution is added to the incombustible phosphoric acid ester-based electrolytic solution contains at least one compound selected from each of the three groups of compounds consisting of: represented by the above chemical formula (I) The compound group (a) of the vinylene carbonate compound; the vinyl acetate compound represented by the above chemical formula (II), the alkyl methyl carbonate compound represented by the above chemical formula (III), and the compound represented by the above chemical formula (IV) Compound group (b) of vinyl ethylene carbonate compounds; and 2-pyrrolidone compounds represented by the above chemical formula (V), cycloalkyl compou...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

A nonflammable non-aqueous electrolyte that enables enhancing the charge and discharge characteristics of lithium-ion battery; and a lithium-ion battery comprising a positive electrode containing a lithium transition metal oxide capable of occlusion and release of lithium, a negative electrode containing a carbon material capable of occlusion and release of lithium and a nonflammable non-aqueous electrolyte. The nonflammable non-aqueous electrolyte is in particular one comprising an additive of ternary or more-component mixture, a lithium salt of high concentration and a phosphoric ester as main solvent characterized in that the additive of ternary or more-component mixture comprises at least one member selected from among each of three compound groups, namely, compound group (a) consisting of vinylene carbonate compounds, compound group (b) consisting of vinyl acetate compounds, alkylmethyl carbonate compounds and vinylethylene carbonate compounds and compound group (c) consisting of 2-pyrrolidinone compounds, cycloalkyl compounds and cyclopentanone compounds.

Description

technical field [0001] The present invention relates to an incombustible non-aqueous electrolyte solution and a lithium ion battery using the electrolyte solution, and more particularly, to a ternary or more compound additive for improving charge / discharge characteristics of a lithium ion battery, a high-concentration A nonflammable nonaqueous electrolyte solution of a lithium salt and a cyclic or phosphoric acid ester compound having a high composition ratio solvent, and a lithium ion battery using the electrolyte solution. Background technique [0002] Lithium-ion batteries with high energy density and high operating voltage have been widely used as power sources for mobile or portable devices such as mobile phones, notebook personal computers, and video cameras. In addition, various studies on practical applications to satellites, rockets, electric vehicles, and night-time power storage systems are also underway. [0003] Lithium-ion batteries use carbon-based materials ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/16H01M10/0525H01M10/0567H01M10/0568H01M10/0569H01M10/36H01M10/42
CPCH01M6/166H01M6/168H01M10/0525H01M10/0567H01M10/0568H01M10/0569H01M10/4235Y02E60/10Y02T10/70
Inventor 王献明曾根理嗣桑岛三郎
Owner JAPAN AEROSPACE EXPLORATION AGENCY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com