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

Chalcogenide semi-solid lithium battery and preparing method thereof

A semi-solid and lithium battery technology, applied in the manufacture of lithium batteries, electrolyte batteries, secondary batteries, etc., can solve the problems of low ionic conductivity and low capacity, achieve large specific surface area, improve practicability, and high gram capacity Effect

Active Publication Date: 2016-01-20
SHANGHAI INST OF SPACE POWER SOURCES
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low ion conductivity and low capacity in the all-solid lithium battery system, and develop a new type of sulfur-based semi-solid lithium battery by utilizing the characteristics of high ion conductivity and high sulfide capacity of fluid polymers. Improving the internal ionic conductivity and battery capacity of all-solid-state lithium batteries

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
  • Chalcogenide semi-solid lithium battery and preparing method thereof
  • Chalcogenide semi-solid lithium battery and preparing method thereof
  • Chalcogenide semi-solid lithium battery and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Zeolite pretreatment: 10g sodium zeolite powder (AlNaO 6 Si 2 , molecular weight 202.10) dispersed in 150-250ml concentration of 3M lithium nitrate (LiNO 3 ) aqueous solution, stirred magnetically at room temperature for 12-24 hours, then filtered under reduced pressure, washed three times with deionized water, dried and heat-treated in a muffle furnace for 4 hours at 400-450°C for later use. The treated zeolite is high-energy dry ball milled at a speed of 400 r / min for 2-8 hours to obtain white flour-like pretreated zeolite powder.

[0040] (2) Preparation of lithium-containing salt polymer: weigh a certain mass of lithium trifluoromethanesulfonate (LiCF 3 SO 3 ), dispersed in polyethylene glycol 400 (PEG400) solvent, magnetic stirring for 12~24h, to lithium trifluoromethanesulfonate (LiCF 3 SO 3 ) completely dissolved to obtain lithium trifluoromethanesulfonate (LiCF 3 SO 3 ) a polyethylene glycol 400 (PEG400) solution with a mass fraction of 6-12 wt%.

[...

Embodiment 2

[0045] (1) Zeolite pretreatment: Disperse 10g of ferrierite powder (FER) in 150-250ml of 3M lithium perchlorate (LiClO 4 ) aqueous solution, stirred magnetically at room temperature for 24-36 hours, then filtered under reduced pressure, washed three times with deionized water, dried and heat-treated in a muffle furnace for 4 hours at 400-450°C for later use. The treated zeolite is high-energy dry ball milled at a speed of 400 r / min for 2-8 hours to obtain white flour-like pretreated zeolite powder.

[0046] (2) Preparation of lithium-containing salt polymer: Weigh a certain mass of lithium perchlorate (LiClO 4 ), dispersed in polyethylene glycol 400 (PEG400) solvent, magnetic stirring for 12~24h, to lithium perchlorate (LiClO 4 ) completely dissolved to obtain lithium perchlorate (LiClO 4 ) a polyethylene glycol 400 (PEG400) solution with a mass fraction of 10-16 wt%.

[0047] (3) Preparation of semi-solid electrolyte: pretreated zeolite and 10~16wt% lithium perchlorate (Li...

Embodiment 3

[0051] (1) Zeolite pretreatment: 10g sodium zeolite powder (AlNaO 6 Si 2 , molecular weight 202.10) dispersed in 150-250ml concentration of 3M lithium nitrate (LiNO 3 ) aqueous solution, stirred magnetically at room temperature for 12-24 hours, then filtered under reduced pressure, washed three times with deionized water, dried and heat-treated in a muffle furnace for 4 hours at 400-450°C for later use. The treated zeolite is high-energy dry ball milled at a speed of 400 r / min for 2-8 hours to obtain flour-like pretreated zeolite powder.

[0052] (2) Preparation of lithium-containing salt polymer: weigh a certain mass of lithium trifluoromethanesulfonate (LiCF 3 SO 3 ), dispersed in polyethylene glycol 400 (PEG400) solvent, magnetic stirring for 12~24h, to lithium trifluoromethanesulfonate (LiCF 3 SO 3 ) completely dissolved to obtain lithium trifluoromethanesulfonate (LiCF 3 SO 3 ) a polyethylene glycol 400 (PEG400) solution with a mass fraction of 6-12 wt%.

[0053] ...

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

No PUM Login to View More

Abstract

The invention discloses a chalcogenide semi-solid lithium battery and a preparing method thereof. The battery is formed by stacking a semi-solid chalcogenide positive electrode, a semi-solid electrolyte and a lithium wafer negative electrode. The semi-solid chalcogenide positive electrode is prepared through the process that firstly, a lithium-salt-containing polymer, a chalcogenide material and a carbon conductive agent are mixed into semi-solid, and then aluminum foil or a nickel net serves as a current collector. The semi-solid electrolyte is prepared by mixing porous inorganic oxide and a lithium-salt-containing polymer, wherein the lithium-salt-containing polymer is prepared by mixing a flow-state polymer and lithium salt. According to the composite type semi-solid electrolyte and the semi-solid chalcogenide positive electrode formed by compounding the lithium-salt-containing polymer and the chalcogenide material, the advantages that inorganic materials are high in mechanical strength and good in stability and the polymer materials are good in flexibility and interface contact, high in ionic conductivity and the like are combined, the ionic conductivity of the electrolyte and the energy storage stability of the chalcogenide positive electrode are improved, the first-time specific discharge capacity is 375 mAh / g, a discharging platform exceeds 2V, an energy storage mechanism is novel, and an energy storage power source with large potential is obtained.

Description

technical field [0001] The invention belongs to the technical field of novel all-solid-state lithium batteries in the field of energy storage batteries, and relates to a lithium battery, in particular to a method for preparing a sulfur-based semi-solid lithium battery. Background technique [0002] Among the next-generation lithium battery technologies and products replacing lithium-ion batteries, all-solid-state lithium batteries have attracted much attention. The all-solid lithium battery is a lithium secondary battery in which the current collector, positive and negative electrodes, and electrolytes are all made of solid materials. Compared with the existing lithium-ion batteries, the all-solid-state lithium battery system does not contain electrolyte at all, and the positive and negative plates do not contain binders and conductive agents. The structure is simple and compact, and the potential for energy density improvement is huge; Any liquid composition, so the all-so...

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): H01M4/36H01M4/38H01M4/60H01M4/62H01M4/13H01M4/137H01M4/139H01M4/1399H01M10/0565H01M10/052H01M10/058
CPCH01M4/13H01M4/137H01M4/139H01M4/1399H01M4/362H01M4/38H01M4/60H01M4/602H01M4/62H01M4/625H01M10/052H01M10/0565H01M10/058H01M2004/028H01M2300/0082Y02E60/10Y02P70/50
Inventor 田文生汤卫平吴勇民徐碇皓施斌
Owner SHANGHAI INST OF SPACE POWER SOURCES
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