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

Electrolytic preparing method for high-energy alkaline primary cell anode material

A battery cathode, alkaline technology, applied in the field of chemical power supply materials, can solve problems such as being unable to withstand experimental verification and theoretical scrutiny, and achieve the effects of convenient industrial production, low cost, and convenient operation and control

Inactive Publication Date: 2006-05-17
XIAMEN UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent with the application number CN 03153572.0 is nothing more than the idea of ​​replacing manganese sulfate with nickel salt and hoping to prepare nickel oxyhydroxide by electrolytic manganese dioxide, which cannot withstand experimental verification and theoretical scrutiny.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Dissolve 1Kg of nickel chloride hexahydrate with deionized water, add 100 grams of sodium sulfate to make a 5L solution, filter, take the clear solution as the electrolyte, and the nickel content in the electrolyte is 0.2mol / L, and the sodium content is 0.1 mol / L; use sodium hydroxide to adjust the pH of the electrolyte to 7.5, control the temperature of the solution to 50°C, and use 0.1dm 2 The two titanium plates are the positive and negative electrodes, and the electrolysis is carried out with a current of 3A. After 1 hour, the cathode plate was taken out, the nickel oxyhydroxide deposited on it was peeled off, cleaned with deionized water, dried at 100° C., and then ground with a ball mill to obtain a black nickel oxyhydroxide finished product.

Embodiment 2

[0027] Dissolve 1Kg of nickel chloride hexahydrate with deionized water, and add 100 grams of sodium sulfate to make a 5L solution, filter, take the clear solution as the electrolyte, and the nickel content in the electrolyte is 0.5mol / L, and the sodium content is 0.08 mol / L; use potassium hydroxide to adjust the pH of the electrolyte to 8.0, control the temperature of the solution to 70°C, and use 0.1dm 2 The two lead plates are the positive and negative electrodes respectively, and the electrolysis is carried out with a current of 2A. After 1 hour, the cathode plate was taken out, the nickel oxyhydroxide deposited on it was peeled off, cleaned with deionized water, dried at 90° C., and then ground with a ball mill to obtain a black nickel oxyhydroxide finished product.

Embodiment 3

[0029] Dissolve 1Kg of nickel chloride hexahydrate with deionized water, and add 100 grams of sodium sulfate to make a 5L solution, filter, take the clear solution as the electrolyte, and the nickel content in the electrolyte is 1.0mol / L, and the sodium content is 0.15 mol / L; use sodium hydroxide to adjust the pH of the electrolyte to 10, control the temperature of the solution to 30°C, and use 0.1dm 2 The two graphite plates are the cathode and anode electrodes, and electrolysis is performed with a current of 1A. After 1 hour, the cathode plate was taken out, the nickel oxyhydroxide deposited on it was peeled off, cleaned with deionized water, dried at 110° C., and then ground with a ball mill to obtain a black nickel oxyhydroxide finished product.

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 related to method for preparing hydroxy-nickel oxide includes following steps: dissolving nickel chloride in deionized water and preparing electrolyte; adding the said electrolyte into electrobath with inert material being as electrode; adjusting pH value and carrying out electroanalysis step; taking hydroxy-nickel oxide on anodic plate off, through cleaning, drying, milling and sieving steps to obtain hydroxy-nickel oxide. Comparing with procedure of using nickel hydroxide, the invented method possesses advantages as follows: low cost, high efficiency, with no wastewater treatment, carrying out reaction system in closed cycle, and availability of equipment for producing manganese dioxide.

Description

technical field [0001] The invention relates to a chemical power source material, in particular to a method for preparing a high-energy alkaline primary battery cathode material nickel oxyhydroxide. Background technique [0002] The continuous development of portable electronic products has put forward new requirements for the batteries used in them, especially the ever-emerging popular digital products have put forward higher requirements for batteries. When digital cameras first came out, most models used alkaline manganese batteries, but when alkaline manganese batteries were used in digital cameras that required high-power discharge, the discharge voltage would drop sharply, and it would be impossible to use only about 10% of the capacity. Work. As a result, the batteries used in digital cameras are transferred from alkaline manganese batteries to nickel-metal hydride rechargeable batteries and lithium-ion rechargeable batteries. However, Ni-MH rechargeable batteries a...

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): H01M4/04H01M4/52C25B1/00C01G53/00
CPCY02E60/10
Inventor 廖代伟符显珠李俊卢成慧林敬东
Owner XIAMEN UNIV
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