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

Method for preparing porous germanium by utilizing electrodeposition of ionic liquid

An ionic liquid and electrodeposition technology, which is applied in electrode manufacturing, electrochemical treatment of electrodes, circuits, etc., can solve problems such as small volume expansion of voids, prevent shedding and loss, improve utilization rate, and improve charge and discharge performance.

Active Publication Date: 2015-07-01
HARBIN INST OF TECH
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that most of the germanium-based materials prepared by the existing methods are granular, and even if there are gaps between the particles, the gaps are generally small and disordered and cannot buffer the volume expansion of germanium well, or they cannot Provide more buffer space, while the traditional preparation methods all have the problems of high preparation cost, not environmental protection, and cumbersome process, and provide a method for preparing porous germanium by electrodeposition of ionic liquid

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
  • Method for preparing porous germanium by utilizing electrodeposition of ionic liquid
  • Method for preparing porous germanium by utilizing electrodeposition of ionic liquid
  • Method for preparing porous germanium by utilizing electrodeposition of ionic liquid

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0027] Specific embodiment 1: A method for preparing porous germanium by ionic liquid electrodeposition described in this embodiment is specifically carried out according to the following steps:

[0028] 1. Hydrogen foam method: Polish the nickel sheet and the pure copper sheet until smooth, remove impurities and surface oxide layers, and obtain the polished nickel sheet and polished pure copper sheet, and connect the polished nickel sheet to the negative electrode of the DC power supply Connect to get the negative pole piece, connect the polished pure copper piece to the positive pole of the DC power supply to get the positive pole piece, then place the positive pole piece and the negative pole piece in the electrolyte, and set the voltage of the DC power supply to 2V ~ 20V , the current is 0.1A~5A, and the reaction is 5s~20s, and the porous metal copper foil is obtained;

[0029] The distance between the positive pole piece and the negative pole piece is 1 cm to 10 cm; the e...

specific Embodiment approach 2

[0045] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 1, the voltage of the DC power supply is set to 20V, and the current is 5A. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0046] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the distance between the positive pole piece and the negative pole piece described in step 1 is 8 cm. Others are the same as in the first or second embodiment.

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
Apertureaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing porous germanium by utilizing electrodeposition of ionic liquid. The invention relates to the method for preparing the porous germanium. The invention aims the solve the problems that germanium-based materials prepared by the existing method are mostly granular, even if gaps exist among granules, the gaps are smaller and unordered, and cannot better buffer volume expansion of the germanium, or the gaps in block shapes cannot provide more buffer space, and meanwhile, the traditional preparation method is high in preparation cost, not environment-friendly, and tedious in process. The method comprises the following steps of (1) a hydrogen foam method; (2) cleaning treatment of electrodes; (3) cleaning treatment of electrolytic cells; (4) electrodeposition of the ionic liquid, so that the porous germanium prepared by utilizing electrodeposition of the ionic liquid is obtained. The invention is applied to a method for preparing the porous germanium by utilizing electrodeposition of the ionic liquid.

Description

technical field [0001] The invention relates to a method for preparing porous germanium. Background technique [0002] Ionic liquids are liquids completely composed of cations and anions, generally composed of organic cations and inorganic anions, which are liquid at room temperature and belong to organic salts, with extremely low vapor pressure, good chemical stability, non-flammability, and electrochemical window Wide, good heat resistance, no environmental pollution and many other advantages are widely used. The traditional water-based electroplating will pollute the environment due to the production of strong acid and strong alkali. The electrodeposition of ionic liquids can well avoid the discharge of toxic substances and cause less pollution to the environment. [0003] For germanium, a high-capacity negative electrode material, due to serious volume expansion changes during charging and discharging, the active material will be separated from the current collector, re...

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): H01M4/38
CPCH01M4/044H01M4/0452H01M4/0471H01M4/13H01M4/139H01M4/38H01M2004/027Y02E60/10
Inventor 赵九蓬李孟愈李垚郝健
Owner HARBIN INST OF TECH
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