High performance chelation type nonmetal corrosion inhibitor without mercury

A corrosion inhibitor and chelating technology, applied in dry batteries, organic chemistry, etc., can solve problems such as protective film failure, achieve the effects of preventing perforation leakage, low cost, and eliminating electrochemical corrosion

Inactive Publication Date: 2006-12-06
律永成
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the content of harmful impurities is too high, the protective film of this passive corrosion inhibitor will be broken and become invalid

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

[0010] The chemical formula screened from various compounds is C n h 2n OH(CHOH) 5 COOM e (where n=1-6, M e =NH 4 , K, N a , L i ) gluconate is added to the pulp layer paper of the separator of the P-type dry battery, after being dissolved in the electrolyte, it diffuses to the surface of the manganese powder, and forms an insoluble chelate with the soluble iron in the electrolyte, thereby preventing the iron from dissolving out, avoiding the corrosion of the negative zinc cylinder of the battery.

Embodiment 2

[0012] The chemical formula screened from various compounds is C n h 2n OH(CHOH) 5 COOM e (where n=1-6, M e =NH 4 , K, N a , L i ) of gluconate is added to the pulp layer paper of the separator of the C-type dry battery, after being dissolved in the electrolyte, it diffuses to the surface of the manganese powder, and forms an insoluble chelate with the soluble iron in the electrolyte, thereby preventing the iron from dissolving out, avoiding the corrosion of the negative zinc cylinder of the battery.

Embodiment 3

[0014] The chemical formula screened from various compounds is C n h 2n OH(CHOH) 5 COOM e (where n=1-6, M e =NH 4 , K, N a , L i ) gluconate is directly added to the electrolyte, and the soluble iron in the electrolyte is chelated to form an insoluble chelate, which prevents the iron from dissolving out and protects the zinc cylinder of the negative electrode of the battery.

[0015] The grafted gluconate can be directly obtained from a conventional way, such as a specialized chemical manufacturing enterprise, or indirectly obtained through a laboratory or conventional technical means. As a coating additive for P-type or C-type dry battery pulp layer paper, it can also be directly added to the battery electrolyte to mix positive electrode core powder, and its corrosion inhibition effect is the same.

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

Chelation type nonmetal corrosion inhibitor without mercury in high performance selects grafted glucoheptonate filtered out of multiple compounds as corrosion inhibitor, chemical formula of which is CnH2nOH(CHOH)5COOMe, where n=1-6,Me=NH4, K, Na, Li. Application of the nonmetal corrosion inhibitor is to add grafted glucoheptonate as corrosion inhibitor to pulp layer paper of dry battery, or electrolyte. The said glucoheptonate can be obtained from conventional approach directly for example from specialized chemical engineering manufacturing company directly, or from laboratory or general technical means indirectly. Features are: easy of use, low cost, and reliable effect.

Description

technical field [0001] The invention relates to a corrosion inhibitor for dry batteries, in particular to a high-efficiency chelating type mercury-free non-metallic corrosion inhibitor applied to dry batteries. Background technique [0002] The quality problem of dry batteries during use and storage is battery perforation leakage, and even damage to electrical appliances. The main reason is that the battery materials contain iron, copper and other metal impurities that are harmful to the battery and the electrochemical corrosion of the negative zinc cylinder of the battery. . [0003] Mercury, indium, bismuth salts and organic surfactants are usually added to the battery as a buffer to form a protective film on the inner surface of the zinc cylinder to make the zinc cylinder corrode evenly and avoid local pitting corrosion and perforation. However, when the content of harmful impurities is too high, the protective film of this passive corrosion inhibitor will be broken and ...

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): H01M6/06C07C59/105
CPCY02E60/12
Inventor 律永成
Owner 律永成
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap