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

Nonaqueous electrolyte solution for secondary battery, and secondary battery provided with said solution

A non-aqueous electrolyte and secondary battery technology, applied in the direction of non-aqueous electrolyte batteries, secondary batteries, non-aqueous electrolytes, etc., can solve the problems of not showing cycle characteristics, achieve excellent cycle characteristics, and improve cycle characteristics

Active Publication Date: 2018-08-31
STELLA CHEMIFA CORP
View PDF10 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no improvement in cycle characteristics in high temperature environments, and further improvement is required

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
  • Nonaqueous electrolyte solution for secondary battery, and secondary battery provided with said solution
  • Nonaqueous electrolyte solution for secondary battery, and secondary battery provided with said solution
  • Nonaqueous electrolyte solution for secondary battery, and secondary battery provided with said solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0267]

[0268] In an argon atmosphere drying oven with a dew point below -70°C, it is prepared relative to a mixed solvent composed of ethylene carbonate (EC) and dimethyl carbonate (DMC) (the volume ratio is EC:DMC=1:1 , manufactured by Kishida Chemical Co., Ltd., lithium battery grade), LiPF 6 The concentration is 1.0 mol / L.

[0269] Next, the above-mentioned ethyl lithium monofluorophosphate was added to the above-mentioned mixed solvent at a concentration of 0.5% by mass relative to the total mass of the non-aqueous electrolytic solution. Thus, the non-aqueous electrolytic solution according to the present example was prepared.

Embodiment 2

[0271] In this embodiment, as an additive, lithium bisoxalate borate is added to the above mixed solvent, and the added concentration is 0.5% by mass relative to the total mass of the non-aqueous electrolytic solution. Other than that, the non-aqueous electrolytic solution according to this example was prepared in the same manner as in Example 1 above.

Embodiment 3

[0273] In this example, instead of lithium bisoxalate borate in Example 2, vinylene carbonate was added at a concentration of 0.5% by mass. Except for this, the nonaqueous electrolytic solution of this example was prepared in the same manner as in Example 2.

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
carbon numberaaaaaaaaaa
Login to View More

Abstract

[Problem] To provide: a nonaqueous electrolyte solution for a secondary battery, the nonaqueous electrolyte solution also exhibiting exceptional cycle characteristics in high-temperature environments;and a secondary battery in which said solution is provided and used. [Solution] The nonaqueous electrolyte solution for a secondary battery pertaining to the present invention is used in secondary batteries and is characterized in comprising one or more components (A) represented by chemical formula (1). (In the formula: Mn+ represents a component selected from the group consisting of hydrogen ions, alkali metal ions, alkaline-earth metal ions, aluminum ions, transition metal ions, and onium ions; X represents a halogen atom; R1 represents a C1-20 hydrocarbon group, or a hydrocarbon group having 1-20 carbon atoms and having at least one component selected from halogen atoms, hetero atoms, and unsaturated bonds; and n represents the valence.)

Description

technical field [0001] The present invention relates to a nonaqueous electrolytic solution for a secondary battery that exhibits excellent cycle characteristics even in a high-temperature environment, and a secondary battery including the same. Background technique [0002] With the development of electronic technology in recent years and the increase of interest in environmental technology, various electrochemical devices are being developed. In particular, there are increasing expectations for electrochemical devices that can contribute to energy saving. Examples of such electrochemical devices include fuel cells and solar cells as power generation devices, and secondary batteries, capacitors, and condensers as power storage devices. With the expansion of the application field of lithium secondary batteries as a representative example of power storage devices from electronic equipment such as mobile phones, computers, and digital cameras to automotive applications, furthe...

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): H01M10/0567H01M10/0568
CPCH01M10/0567H01M10/052H01M2300/0025Y02E60/10H01M10/0568H01M10/0525H01M2300/0037
Inventor 坂口纪敬桂静郁近壮二郎山本雅士西田哲郎
Owner STELLA CHEMIFA CORP
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