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

Organic electrolytic solution and lithium battery employing the same

一种有机电解质、有机溶剂的技术，应用在有机电解质溶液领域，能够解决不能充分防止、电子离子迁移率差等问题

Active Publication Date: 2006-09-13
SAMSUNG SDI CO LTD
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the above-mentioned conventional additives, because the resulting SEI film is still unstable, the ion mobility of electrons is poor, and gas generation due to decomposition of the electrolyte solution cannot be sufficiently prevented

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
  • Organic electrolytic solution and lithium battery employing the same
  • Organic electrolytic solution and lithium battery employing the same
  • Organic electrolytic solution and lithium battery employing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Example 1: Preparation of electrolyte solution

[0078] 3% by weight of bis(trimethylsilyl)malonate represented by formula (4) was added as an additive to an organic solvent mixture containing 30% by volume of propylene carbonate and 70% by volume of dimethyl carbonate, 1M LiPF 6 Used as lithium salt to prepare organic electrolyte solution.

[0079]

Embodiment 2

[0080] Example 2: Preparation of electrolyte solution

[0081] An organic electrolyte solution was prepared in the same manner as in Example 1, except that 5% by weight of bis(trimethylsilyl)malonate represented by formula (4) was added.

Embodiment 3

[0082] Example 3: Preparation of electrolyte solution

[0083] An organic electrolyte solution was prepared in the same manner as in Example 1, except that 1% by weight of bis(trimethylsilyl)malonate represented by formula (4) was added.

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
molecular weightaaaaaaaaaa
Login to View More

Abstract

An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes: a lithium salt; an organic solvent containing a high dielectric constant solvent and a low boiling point solvent; and a dicarboxylic acid derivative having at least one substituted silyl group. The organic electrolytic solution and the lithium battery employing the same have improved reductive decomposition stability, thereby decreasing an irreversible capacity after a first cycle and improving the charge / discharge efficiency and lifespan of the battery. The lithium battery has non-varying chemical properties at room temperature and a uniform thickness after standard charging, and thus has high reliability.

Description

Technical field [0001] The present invention relates to a lithium battery. More specifically, the present invention relates to an organic electrolyte solution having high reliability because the thickness of the battery is maintained within an allowable range, and a lithium battery using the same. Background technique [0002] As portable electronic devices, such as video cameras, cell phones, notebook computers, etc., become lighter and have increasingly improved performance, more research must be conducted on batteries used as power sources for such electronic devices. In particular, the energy density per unit weight of rechargeable lithium secondary batteries is 3 times higher than that of conventional lead storage batteries, nickel-cadmium batteries, nickel-hydrogen batteries, nickel-zinc batteries, etc., and can be quickly charged, so it is currently the most inclined Research object. [0003] In lithium ion batteries, transition metal compounds such as LiNiO 2 , LiCoO 2 , ...

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): H01M10/40H01M6/16H01M10/05H01M10/052H01M10/0567H01M10/0568H01M10/0569
CPCH01M4/1393H01M10/0567Y02E60/122H01M2300/004H01M10/0569H01M10/052Y02E60/10H01M10/0525
Inventor 尹在久金翰秀林东民加利纳·米亚奇纳鲍里斯·A·特罗菲莫夫李斗渊赵命东
Owner SAMSUNG SDI CO LTD
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