Lead-zinc battery

a technology of lead zinc and storage batteries, applied in the direction of lead-acid accumulators, cell components, electrochemical generators, etc., can solve the problems of limited energy density, limited cycle life, and extremely corrosive electrolyte, and achieve superior electrical conductivity, improve cell capacity, and improve performance

Inactive Publication Date: 2006-02-16
STAUFFER JOHN E
View PDF9 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nevertheless, it has a limited energy density and the electrolyte is extremely corrosive.
Maintenance-free types avoid the loss of evolved gases, as disclosed in U.S. Pat. No. 3,862,861, but their cycle-life is still restricted.

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
  • Lead-zinc battery
  • Lead-zinc battery
  • Lead-zinc battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] 1. The electrolyte in this example contained sodium carbonate. The sodium carbonate solution was prepared by heating 96.8 g. of baking soda (sodium bicarbonate) to 500° F. and dissolving the product in 185 ml. of water. The positive electrode was formed from a 1½ in. wide strip of lead obtained from a plumbing supply business. The negative electrode was a 1½ in. wide strip of zinc which had been removed from a flashlight battery of the Leclanche type. The cell compromised a glass jar about 2¾ in. diameter by 2½ in. high. After charging the cell for 23 minutes at 2.50 v., an open circuit voltage of 2.32 v. was observed for the cell. The cell was repeatedly discharged and charged during the course of the run. At the end of the experiment, the electrodes were in perfect condition and the electrolyte was water-white. [0025] 2. In this run the electrolyte was a solution of potassium borate. The same electrodes and container were used as in example 1. To prepare the electrolyte 40....

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
energy densityaaaaaaaaaa
energy densitiesaaaaaaaaaa
alkalinityaaaaaaaaaa
Login to view more

Abstract

A rechargeable battery is provided such that the positive electrode comprises lead dioxide, the negative electrode zinc, and the electrolyte is alkaline. Upon discharge, the lead dioxide is reduced to lead oxide, the zinc is oxidized to zinc oxide, and the electrolyte remains unchanged. The reactions are reversed when the battery is charged.

Description

RELATED APPLICATION [0001] This application is a continuation of U.S. application Ser. No. 10 / 756,015 filed under attorney docket no. STF-122-A on Jan. 13, 2004, currently pending.FIELD OF THE INVENTION [0002] The present invention relates to a novel type of storage battery which is distinguished by its unique electrochemistry. The positive electrode comprises lead dioxide and the negative electrode zinc. The electrolyte consists of an alkaline aqueous solution of an alkali metal hydroxide or tetramethyl ammonium hydroxide to which various buffers, including carbonates, borates, silicates, and phosphates, may be added. Upon discharge the lead dioxide is reduced to lead oxide and the zinc is oxidized to zinc oxide. BACKGROUND OF THE INVENTION [0003] The most common storage battery, found in almost every vehicle, is the lead-acid battery. This battery comprises a lead dioxide positive electrode, a lead metal negative electrode, and sulfuric acid for the electrolyte. Its chief advantag...

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(United States)
IPC IPC(8): H01M10/22H01M10/26H01M4/56H01M4/42H01M4/38H01M10/20H01M10/24
CPCH01M4/244H01M4/56H01M10/08H01M10/20Y02T10/7016H01M2300/0014Y02E60/124Y02E60/126H01M10/26Y02E60/10Y02T10/70
Inventor STAUFFER, JOHN E.
Owner STAUFFER JOHN E
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