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

Nonaqueous electrolyte solution and nonaqueous secondary battery

A non-aqueous electrolyte and non-aqueous solvent technology, which is applied in the direction of non-aqueous electrolyte batteries, secondary batteries, non-aqueous electrolytes, etc., can solve the problems of report cases that are not practical, achieve improved output characteristics and cycle performance, and improve Output characteristics, effects of corrosion prevention

Pending Publication Date: 2021-04-09
ASAHI KASEI KK
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] On the other hand, for lithium ion batteries used to replace lead storage batteries, nonaqueous secondary batteries that highly satisfy both the output characteristics for starting an engine in a low temperature environment and the durability in a high temperature environment such as an engine room are still available. Unknown
In addition, there are no examples of practical reports regarding efforts to realize such a non-aqueous secondary battery using an acetonitrile-containing electrolyte solution that is excellent in viscosity and dielectric constant.

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 and nonaqueous secondary battery
  • Nonaqueous electrolyte solution and nonaqueous secondary battery
  • Nonaqueous electrolyte solution and nonaqueous secondary battery

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ＞

[0079] The non-aqueous electrolytic solution of the first embodiment and the non-aqueous secondary battery containing the same will be described below. If the non-aqueous secondary battery of this embodiment is used, it is possible to provide a solution to suppress the decomposition reaction of the non-aqueous electrolyte components caused by the active oxygen species generated along with the electrochemical reaction, thereby suppressing A non-aqueous electrolytic solution capable of improving output characteristics and cycle performance over a wide temperature range and self-discharge at a high temperature exceeding 60° C. due to deterioration reaction, and a non-aqueous secondary battery having the same.

[0080]

[0081] The "nonaqueous electrolytic solution" in the first embodiment refers to an electrolytic solution in which water is 1% by mass or less with respect to the total amount of the nonaqueous electrolytic solution. The non-aqueous electrolytic solution of the p...

no. 2 Embodiment approach ＞

[0247] The non-aqueous electrolytic solution of the second embodiment and the non-aqueous secondary battery containing the same will be described below.

[0248] If the non-aqueous secondary battery of this embodiment is used, firstly, it is possible to provide a solution to suppress the decomposition reaction of the non-aqueous electrolyte components caused by the active oxygen species generated along with the electrochemical reaction, and to suppress the internal discharge of the non-aqueous secondary battery. A non-aqueous electrolytic solution capable of improving output characteristics and cycle performance over a wide temperature range, and a non-aqueous secondary battery equipped with the same. In addition, by controlling the compounding ratio of the lithium (Li) salt, the second method can avoid insufficient formation of negative electrode SEI or corrosion of the aluminum (Al) current collector, and suppress the thermal deterioration of the Li salt. Deterioration react...

no. 3 Embodiment approach ＞

[0297] The non-aqueous electrolytic solution of the third embodiment and the non-aqueous secondary battery containing the same will be described below. If the non-aqueous secondary battery of this embodiment is used, it is possible to provide a solution to avoid insufficient formation of SEI at the negative electrode or corrosion of the aluminum (Al) collector by controlling the compounding ratio of the lithium (Li) salt, and to suppress the corrosion caused by the Li salt. A non-aqueous electrolyte that can improve the output characteristics of the non-aqueous secondary battery over a wide temperature range, long-term durability at high temperatures exceeding 60°C, and cycle performance , and a non-aqueous secondary battery having the same.

[0298] In the third embodiment, the elements described in the first and second embodiments can be appropriately applied to various elements for obtaining a non-aqueous secondary battery. For example, the preferred form in this embodimen...

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
Conductivityaaaaaaaaaa
Flash pointaaaaaaaaaa
Weight per unit areaaaaaaaaaaa
Login to View More

Abstract

Provided is a nonaqueous electrolyte solution comprising a nonaqueous solvent containing acetonitrile in an amount of 5 to 95% by volume, a lithium salt, and at least one compound having a structure that satisfies the following requirements 1 to 5: 1. the compound is a condensed polycyclic heterocyclic compound; 2. a pyrimidine skeleton is contained in the condensed polycyclic heterocyclic ring; 3. at least three nitrogen atoms are contained in the condensed polycyclic heterocyclic ring; 4. at least five sp2 carbon atoms are contained in the condensed polycyclic heterocyclic ring; and 5. no hydrogen atom is bonded to the nitrogen atoms in the condensed polycyclic heterocyclic ring.

Description

technical field [0001] The present invention relates to a nonaqueous electrolytic solution and a nonaqueous secondary battery. Background technique [0002] Non-aqueous secondary batteries represented by lithium-ion batteries (LIB) are characterized by light weight, high energy, and long life, and are widely used as power sources for various portable electronic devices. In recent years, non-aqueous secondary batteries have also attracted attention as they are used in industrial applications represented by power tools such as electric tools, in-vehicle applications in electric vehicles and electric bicycles, and are also attracting attention in the field of power storage such as residential power storage systems. [0003] Generally, a non-aqueous electrolytic solution is used in a lithium ion battery. For example, a combination of a high dielectric solvent such as a cyclic carbonate and a low-viscosity solvent such as a lower chain carbonate is generally used. However, comm...

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
IPC IPC(8): H01M10/0566H01M10/0567H01M10/0568H01M10/0569H01M10/0525
CPCH01M10/0566H01M10/0567H01M10/0568H01M10/0569H01M10/0525H01M2300/0025C07D473/12H01M4/587Y02E60/10H01M4/5825H01M2300/0028H01M10/052H01M2300/004H01M2300/0042H01M4/134H01M4/136H01M2004/021H01M2004/027H01M2004/028
Inventor 庄司浩辅松冈直树
Owner ASAHI KASEI KK
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