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

Metal-hydrogen battery and preparation method thereof

A metal electrode and metal technology, applied in the field of electrochemistry, can solve problems such as limited voltage window, hindered application, and expensive catalyst

Active Publication Date: 2021-08-31
UNIV OF SCI & TECH OF CHINA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this traditional nickel-hydrogen battery is limited by the limited voltage window of the aqueous electrolyte, the discharge platform is only 1.2V, and the catalyst is expensive, which hinders its wide application.

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
  • Metal-hydrogen battery and preparation method thereof
  • Metal-hydrogen battery and preparation method thereof
  • Metal-hydrogen battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Under normal temperature and pressure air environment, weigh a certain mass of Li 2 SO 4 Fully dissolve in deionized water and mix to prepare 2mol / L Li 2 SO 4 Aqueous solution, with NASICON-type LiZr 2 (PO 4 ) 3 as a solid electrolyte material. NASICON-type LiZr 2 (PO 4 ) 3 As a solid electrolyte material, high-voltage (3.04V) lithium metal is used as the negative electrode material, 5% mass fraction of platinum carbon catalyst is used as the active material of the positive electrode, polyvinylidene fluoride is used as the binder, and N-methyl-pyrrolidone is used as the active material of the positive electrode. After the solvent is stirred into a uniform slurry, it is coated on the gas conductive layer to make a positive electrode sheet.

[0056] In an anhydrous and oxygen-free glove box, the NASICON-type LiZr 2 (PO 4 ) 3 The solid electrolyte, dropwise the electrolyte solution (1mol / L LiPF 6 , the solvent is EC / DMC / EMC) to eliminate interfacial resistance...

Embodiment 2

[0059] Under normal temperature and pressure air environment, weigh a certain mass of Na 2 SO 4 Fully dissolve in deionized water and mix to prepare 2mol / L Na 2 SO 4 Aqueous solution, with NASICON-type NaZr 2 (PO 4 ) 3 as a solid electrolyte material. NASICON-type NaZr 2 (PO 4 ) 3 As a solid electrolyte material, high-voltage (2.71V) sodium metal is used as the negative electrode material, 5% mass fraction of platinum carbon catalyst is used as the active material of the positive electrode, polyvinylidene fluoride is used as the binder, and N-methyl-pyrrolidone After being stirred into a uniform slurry as a solvent, it is coated on the gas conductive layer to make a positive electrode sheet.

[0060] In an anhydrous and oxygen-free glove box, use the above-mentioned sodium metal ion to migrate NASICON-type NaZr 2 (PO 4 ) 3 The solid electrolyte, dropwise the electrolyte solution (1mol / L NaClO 4 , the solvent is EC / DMC / EMC) to eliminate interfacial resistance, and ...

Embodiment 3

[0063] Under normal temperature and pressure air environment, weigh a certain mass of K 2 SO 4 Fully dissolved in deionized water and mixed with 2mol / L K 2 SO 4 Aqueous solution, in K 2 PInS 4 As a solid electrolyte material, high-voltage (2.92V) potassium metal is used as the negative electrode material, 5% mass fraction of platinum carbon catalyst is used as the active material of the positive electrode, polyvinylidene fluoride is used as the binder, and N-methyl-pyrrolidone is used as the active material of the positive electrode. After the solvent is stirred into a uniform slurry, it is coated on the gas conductive layer to make a positive electrode sheet.

[0064] In an anhydrous and oxygen-free glove box, use the above potassium metal ion to transfer K 2 PInS 4 solid electrolyte, dropwise the electrolyte solution (1mol / L KClO 4 , the solvent is EC / DMC / EMC) to eliminate interfacial resistance, and assembled with potassium metal to obtain a potassium metal negative ...

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 provides a metal-hydrogen battery and a preparation method thereof, and the metal-hydrogen battery comprises a positive electrode, a negative electrode and an electrolyte, the positive electrode comprises a hydrogen electrode, and the hydrogen electrode comprises a positive pole piece containing a positive active material. The negative electrode comprises a metal electrode, the metal electrode comprises main metal and doped metal, and the main metal comprises one or more of Li, Na, K, Ca, Mg and Al; and the doped metal comprises one or more of Ni, Zn, Sr and Ba. The electrolyte comprises inorganic electrolyte on the positive electrode side, organic electrolyte on the negative electrode side and solid electrolyte for separating the inorganic electrolyte from the organic electrolyte.

Description

technical field [0001] The disclosure belongs to the technical field of electrochemistry, and in particular relates to a metal-hydrogen battery and a preparation method thereof. Background technique [0002] With the rapid development of the global information age, the demand for energy storage equipment is growing rapidly. In related technologies, a nickel-hydrogen battery with high energy density and long-term stability has been obtained by utilizing the excellent characteristics of the hydrogen electrode and matching it with the nickel positive electrode. This nickel-hydrogen battery energy storage technology is applied to space vehicles and satellites, with a service life of more than fifteen years. Hydrogen, as the lightest substance known at present, has a high theoretical capacity, is green and environmentally friendly, and is rich in resources. It exists widely in the universe. Hydrogen energy has been regarded as one of the clean energy sources with development pot...

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): H01M12/06H01M4/38
CPCH01M12/06H01M4/38Y02E60/10
Inventor 陈维刘再春朱正新
Owner UNIV OF SCI & TECH OF CHINA
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