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

Amorphous sulfide solid electrolyte and preparation method thereof, lithium ion battery

A solid electrolyte and sulfide technology, which is used in the manufacture of non-aqueous electrolyte batteries, solid electrolytes, and electrolyte batteries, can solve the problems of Ge toxicity, high price, and high cost, and achieve the advantages of shortened ball milling time, environmental friendliness, and mild reaction process. Effect

Active Publication Date: 2020-11-24
ZHENGZHOU NEW CENTURY MATERIALS GENOME INST CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, Ge is poisonous, and GeS 2 The high price leads to the preparation of amorphous sulfide solid electrolyte Li 10 GeP 2 S 12 cost is still high

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
  • Amorphous sulfide solid electrolyte and preparation method thereof, lithium ion battery
  • Amorphous sulfide solid electrolyte and preparation method thereof, lithium ion battery
  • Amorphous sulfide solid electrolyte and preparation method thereof, lithium ion battery

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] The preparation method of the amorphous sulfide solid electrolyte of the present invention comprises the following steps: under an inert atmosphere or vacuum condition, mix and ball mill a lithium source and other raw materials for 8-12 hours; the lithium source is lithium hydride or lithium hydride A mixed lithium source composed of at least one of LiCl, LiBr, and LiI.

[0034] The preparation method of the amorphous sulfide solid electrolyte of the present invention triggers a chain reaction through the micro-area alloying process during ball milling, and only needs a short-term ball milling reaction, which is different from the principle of obtaining an amorphous solid by long-term ball milling. In the invention, the amorphous solid can be obtained only by subjecting the raw materials to ball milling for a short time. Moreover, the method of the present invention can obtain an amorphous sulfide electrolyte material with excellent performance without the need for a la...

Embodiment 2

[0066] The amorphous sulfide solid electrolyte of this embodiment has the chemical formula shown below: Li 11 sn 2 P.S. 12 .

Embodiment 3

[0068] The amorphous sulfide solid electrolyte of this embodiment has the chemical formula shown below: Li 10.7 Si 2 P.S. 11.7 Cl 0.3 .

[0069] Example 4 of the amorphous sulfide solid electrolyte

[0070] The amorphous sulfide solid electrolyte of this embodiment has the chemical formula shown below: Li 10 Si 1.5 P 1.5 S 11.5 Cl 0.5 .

[0071] Example 5 of the amorphous sulfide solid electrolyte

[0072] The amorphous sulfide solid electrolyte of this embodiment has the chemical formula shown below: Li 10.5 Si 1.5 P 1.5 S 12 .

[0073] Example 6 of Amorphous Sulfide Solid Electrolyte

[0074] The amorphous sulfide solid electrolyte of this embodiment has the chemical formula shown below: Li 10 sn 1.5 P 1.5 S 11.5 Cl 0.5 .

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
electrical conductivityaaaaaaaaaa
Login to View More

Abstract

The invention relates to an amorphous sulfide solid electrolyte, a preparation method thereof and a lithium ion battery, belonging to the technical field of lithium ion batteries. The preparation method of the amorphous sulfide solid electrolyte of the present invention comprises the following steps: under an inert atmosphere or a vacuum condition, the lithium source and other raw materials are mixed and ball-milled for 8-12 hours to obtain the product; the lithium source is lithium hydride or lithium hydride A mixed lithium source composed of at least one of LiCl, LiBr, and LiI. The preparation method of the amorphous sulfide solid electrolyte of the present invention is through the micro-area alloying process during ball milling treatment, and then triggers a chain reaction, and only needs a short time ball milling reaction. The above-mentioned lithium hydride is an essential component of the lithium source, avoiding the use of Li 2 S and other expensive raw materials. In addition, on the one hand, lithium hydride provides an important lithium source, on the other hand, it provides a thermodynamic environment conducive to alloying for the full reaction of the system, which is conducive to the synthesis of the target product in a short time.

Description

technical field [0001] The invention relates to an amorphous sulfide solid electrolyte, a preparation method thereof and a lithium ion battery, belonging to the technical field of lithium ion batteries. Background technique [0002] Currently, most lithium-ion batteries use a liquid electrolyte as a carrier for the transport of lithium ions between the positive and negative electrodes. However, liquid electrolytes are prone to safety problems such as leakage, oxidative combustion under thermal runaway, and electrode corrosion, which limit their applications in 3C, electric vehicles, and extreme environments. Although gel electrolytes, polymer electrolytes, polymer-inorganic composite electrolytes and other materials can avoid problems such as liquid leakage to a certain extent, these types of materials still contain a large amount of flammable organic substances, which cannot fundamentally solve thermal runaway. Burning and other safety issues. The use of solid electrolyte...

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 Patents(China)
IPC IPC(8): H01M10/058H01M10/0562H01M10/0525
CPCH01M10/0525H01M10/0562H01M10/058H01M2300/0068Y02E60/10Y02P70/50
Inventor 邵国胜轩敏杰
Owner ZHENGZHOU NEW CENTURY MATERIALS GENOME INST 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