Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Batch production method of sulfide solid electrolyte

A solid electrolyte, mass production technology, applied in non-aqueous electrolyte batteries, electrolyte battery manufacturing, electrochemical generators and other directions, can solve the problems of cumbersome, poor batch stability of materials, time-consuming and laborious preparation process, etc. Reduce the preparation cost and meet the effect of mass production

Inactive Publication Date: 2021-04-02
ZHEJIANG FUNLITHIUM NEW ENERGY TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of sulfide electrolytes is relatively cumbersome at this stage. The raw materials need to be ball milled many times before the sulfide solid electrolyte can be prepared. strenuous
In addition, due to the need to artificially crush the powder during the preparation process of the ball milling method, the batch stability of the material is poor

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
  • Batch production method of sulfide solid electrolyte
  • Batch production method of sulfide solid electrolyte
  • Batch production method of sulfide solid electrolyte

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A batch production method of sulfide solid electrolyte, comprising the following steps:

[0061] 1) Put the raw material Li in the glove box 2 S, P 2 S 5 , LiCl is fed into the mixing device according to the molar ratio of 1.9:0.5:1.6, the water content of the glove box is ≤0.01PPm, the oxygen content is ≤0.01PPm, and the atmosphere of the glove box is nitrogen;

[0062] 2) Seal the mixing device with the raw materials, start mixing, first mix at a low speed, the speed of the mixer is 200rmp / min, forward and reverse each 1min, the mixing time is 30min; then mix at a high speed, the speed is 10000rmp / min, Turn in one direction, each mixing time is 2 minutes, and the total mixing time is 10 minutes; during this process, the inner cavity temperature of the mixing device does not exceed 100°C, and the surface temperature of the mixed powder does not exceed 200°C;

[0063] 3) Demagnetize the mixed powder, the magnetic field strength is 1.5T, and the demagnetization times ...

Embodiment 2-8

[0073] A batch production method of sulfide solid electrolyte, comprising the following steps:

[0074] Compared with Example 1, Example 2-8 has changed the ratio of raw materials, and other operations remain unchanged.

[0075]

Embodiment 9-17

[0077] A batch production method of sulfide solid electrolyte, comprising the following steps:

[0078] Compared with Example 1, Examples 9-17 changed the mixing conditions and sintering conditions, and other conditions remained unchanged.

[0079]

[0080]

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
Login to View More

Abstract

The invention discloses a batch production method of a sulfide solid electrolyte. The batch production method comprises the following steps: 1) feeding proportioned raw materials into a mixing device;2) mixing the raw materials added into the mixing device; 3) carrying out magnetic separation on powder obtained after mixing so as to remove iron; 4) sub-packaging the powder having been subjected to iron removal via magnetic separation into crucibles; 5) compacting the powder which is subpackaged into the crucible; 6) sintering the compacted powder to obtain the sulfide solid electrolyte; 7) crushing the sintered sulfide solid electrolyte; 8) sieving sulfide solid electrolyte powder obtained after crushing, and controlling the particle size of the powder; and 9) packaging the sieved sulfidesolid electrolyte powder. According to the invention, the sulfide solid electrolyte is prepared from the raw materials in a mixing and crushing mode suitable for batch preparation; and compared witha traditional ball milling method, the method is simple in preparation process, improves the batch stability of the products, reduces preparation cost, and can meet the requirement of batch production.

Description

technical field [0001] The invention relates to a sulfide solid electrolyte, in particular to a mass production method of a sulfide solid electrolyte. Background technique [0002] In recent years, with the rapid spread of electronic equipment such as mobile phones and computers, the development and application of lithium-ion batteries used as their power sources have attracted widespread attention. In addition, due to the requirement of advocating environmental protection, electric vehicles or hybrid electric vehicles have also been rapidly developed in the automotive industry, which requires lithium-ion batteries to have the characteristics of high capacity, long cycle and good safety. At present, commercial lithium-ion batteries are generally liquid electrolyte batteries, and the flammable organic solvent electrolyte makes liquid electrolyte lithium-ion batteries have safety problems. Replacing liquid electrolytes with inorganic solid electrolytes has attracted much atte...

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): H01M10/0562H01M10/0525H01M10/058
CPCH01M10/0525H01M10/0562H01M10/058Y02E60/10Y02P70/50
Inventor 陈伟林顾宁峰林久许晓雄
Owner ZHEJIANG FUNLITHIUM NEW ENERGY TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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