Supercharge Your Innovation With Domain-Expert AI Agents!

Liquid metal-gas battery and preparation method thereof

A technology of gas batteries and liquid metals, which is applied in the direction of fuel cells, battery electrodes, fuel cell half-cells and primary battery-type half-cells, etc. Issues such as battery cycle life and safety, to achieve the effect of improving migration and ion transport performance, improving electrochemical performance, and improving cycle stability

Active Publication Date: 2015-11-25
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, these high-energy-density batteries have a common disadvantage, that is, these batteries use solid metals as electrode materials, which lead to the generation of metal dendrites due to the accumulation of by-products and uneven interfacial reactions during charging and discharging. Make the battery prone to short-circuit failure, which greatly affects the cycle life and safety of the battery

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
  • Liquid metal-gas battery and preparation method thereof
  • Liquid metal-gas battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016] A preparation method of the liquid metal-gas battery 100, comprising the following steps:

[0017] Step S1 , providing a housing 60 including a cavity 61 .

[0018] Step S2 , placing the negative electrode material, the electrolyte 40 , and the separator 70 in the cavity 61 of the casing 60 in sequence. At this time, the shape of the negative electrode material depends on the temperature of the production environment, and it can be liquid or solid. The negative electrode material is a metal, and the metal can be selected from at least one of lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, aluminum, tin, gallium and indium. The negative electrode material forms the negative electrode 30 . The electrolyte 40 contains ions formed from at least one metal contained in the negative electrode material.

[0019] Step S3 , fixing a positive electrode conductive membrane 13 with a porous structure in the cavity 61 on the side of the electrolyte 40 away from t...

Embodiment 1

[0024] Preparation of electrolyte solution 40: cesium trifluoromethanesulfonate (CsSO 3 CF 3 ) into ethylene glycol dimethyl ether (DME) to obtain electrolyte solution 40 , wherein the concentration of cesium trifluoromethanesulfonate is 1.0 mol / L.

[0025] Preparation of the positive electrode conductive membrane 13 : the conductive carbon black (Super-P) was mixed with the adhesive, stirred and pressed at room temperature to obtain the positive electrode conductive membrane 13 with a porous structure.

[0026] Assembly of the liquid metal-gas battery 100: put cesium metal (melting point 28.4°C) as the negative electrode material in the cavity 61 of the housing 60, then fill the cavity 61 with the prepared electrolyte solution 40, and then place the prepared The positive electrode conductive membrane 13 is fixed in the cavity 61 and located at the end of the electrolyte 40 away from the negative electrode material, filled with oxygen as the positive electrode active material...

Embodiment 2

[0028] Preparation of electrolyte solution 40: cesium trifluoromethanesulfonate (CsSO 3 CF 3 ) into ethylene glycol dimethyl ether (DME) to obtain electrolyte solution 40 , wherein the concentration of cesium trifluoromethanesulfonate is 1.0 mol / L.

[0029] Preparation of the positive electrode conductive membrane 13: mixing the carbon nanotubes and the adhesive, stirring and pressing at room temperature to obtain the positive electrode conductive membrane 13 with a porous structure.

[0030] Assembly of the liquid metal-gas battery 100: the alloy of metal sodium and cesium (melting point is -30°C) is placed in the cavity 61 of the casing 60 as the negative electrode material, and then the prepared electrolyte 40 is filled in the cavity 61 , and then fix the prepared positive electrode conductive membrane 13 in the cavity 61 at the end of the electrolyte 40 away from the negative electrode material, fill in chlorine gas as the positive electrode active material 11, and then p...

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
Concentrationaaaaaaaaaa
Login to View More

Abstract

The invention discloses a liquid metal-gas battery, which comprises a positive electrode, a negative electrode, electrolyte and a shell, wherein the shell is used for packaging the positive electrode, the negative electrode and the electrolyte; the negative electrode is metal, and is liquid in the charging and discharging processes; the positive electrode comprises a positive active material and a positive conductive membrane with a porous structure; the positive active material is a gas; the electrolyte contains ions which are formed by at least one metal contained in the negative electrode; the electrolyte is arranged between the positive active material and the negative electrode; the positive conductive membrane is arranged between the positive active material and the electrolyte and contacts the electrolyte; and the negative electrode is not dissolved into the electrolyte.

Description

technical field [0001] The invention relates to the field of energy storage devices, in particular to a liquid metal-gas battery and a preparation method thereof. Background technique [0002] In recent years, some batteries with high energy density have been developed one after another, and have been extensively and in-depth researched, such as zinc-air battery (aqueous system), metal (lithium / sodium / potassium)-air battery, metal (lithium / sodium)-sulfur battery. These batteries have very high energy density, but there are also some technical difficulties that restrict their future application development. Among them, these high-energy-density batteries have a common disadvantage, that is, these batteries use solid metals as electrode materials, which lead to the generation of metal dendrites due to the accumulation of by-products and uneven interfacial reactions during charging and discharging. The battery is prone to short-circuit failure, which greatly affects the cycl...

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): H01M12/06H01M8/22H01M4/38
CPCH01M4/38H01M8/22H01M12/06Y02E60/10Y02E60/50
Inventor 翟登云余唯王海帆游从辉杨全红李宝华康飞宇
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com