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

a na-doped nh 4 v 4 o 10 Nano sheet material and its preparation method and application

A technology of NH4V4O10 and nanomaterials, applied in the fields of nanotechnology, nanotechnology, nanotechnology for materials and surface science, and can solve the problems of low specific capacity of vanadate materials

Active Publication Date: 2021-11-02
HUNAN INST OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to synthesize a Na-doped NH with a higher specific capacity for the defects of low specific capacity of existing vanadate materials. 4 V 4 o 10 nanosheet material

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
  • a na-doped nh <sub>4</sub> v <sub>4</sub> o <sub>10</sub> Nano sheet material and its preparation method and application
  • a na-doped nh <sub>4</sub> v <sub>4</sub> o <sub>10</sub> Nano sheet material and its preparation method and application
  • a na-doped nh <sub>4</sub> v <sub>4</sub> o <sub>10</sub> Nano sheet material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the examples, and the contents mentioned in the examples are not intended to limit the present invention. It should be noted in advance that the following examples were completed in a laboratory, and those skilled in the art should understand that the amounts of each component given in the examples only represent the proportioning relationship between the components, rather than specific limited.

[0030] 1. Preparation of the target product.

[0031] Na in this example x NH 4 V 4 o 10 The preparation method of nano sheet material is as follows:

[0032] a. Add appropriate amount of NH 4 VO 3 Add appropriate amount of NaNO 3 solution, stir and mix well; specifically, NH 4 VO 3 with NaNO 3 NaNO in solution 3 The mass ratio of 2:1-3.5:1, for example, can first use 0.21 g NaNO 3 Add 30 ml deionized water to prepare NaN...

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
current efficiencyaaaaaaaaaa
retention rateaaaaaaaaaa
Login to View More

Abstract

A Na-doped NH 4 V 4 o 10 The nano sheet material and its preparation method and application relate to the technical field of zinc ion battery electrode materials. The present invention prepares Na x NH 4 V 4 o 10 nanosheet material, in which the intercalated NH 4 + Can act as a "pillar" between vanadium oxide layers, preventing destructive structural changes during ion intercalation / extraction; NH 4 + and the N‑H‑O bond network between the vanadium oxide layer increases the structural stability, greatly improving the above-mentioned Na x NH 4 V 4 o 10 Cyclic stability of electrode materials where nanosheet materials are active materials. Overall, the ultrathin nano-active material exhibits excellent electrochemical performance, and the material has good Zn 2+ Storage capacity and ultrafast kinetics of ion intercalation / extraction, the aforementioned NH 4 V 4 o 10 Nanosheet materials have high specific capacity, good rate performance and cycle stability, and have broad application prospects.

Description

technical field [0001] The invention relates to the technical field of zinc ion battery electrode materials, in particular to a Na-doped NH 4 V 4 o 10 Nanosheet materials and their preparation methods and applications. Background technique [0002] Theoretically, secondary aqueous zinc-ion batteries have the advantages of safety, cheapness, environmental protection, and high energy density. High-energy-density secondary aqueous zinc-ion batteries (ZIBs) are expected to meet the growing demand for safe and sustainable energy storage devices in the future. However, an important challenge currently hindering the practical application of aqueous Zn-ion batteries is the lack of suitable cathode materials. In recent years, MnO 2 Because of its high theoretical capacity (300 mAh g -1 ), low cost and low toxicity have attracted more and more attention. However, MnO 2 In the continuous insertion of Zn 2+ undergo complex phase transitions and show limited specific capacity or ...

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): H01M4/48H01M10/36B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01M4/48H01M10/36Y02E60/10
Inventor 张睿智黄靖栋尹岚董勇
Owner HUNAN INST OF TECH
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