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Lead-zinc battery

A storage battery, zinc negative charge technology, applied in the field of novel types of storage batteries, can solve problems such as cycle life limitation

Inactive Publication Date: 2011-05-11
约翰·E·斯托弗
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The maintenance-free type avoids the loss of evolved gas, as disclosed in US Patent No. 3,862,861, but its cycle life is still limited

Method used

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  • Lead-zinc battery
  • Lead-zinc battery

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Effect test

example

[0027] (1) Make batteries out of glass jars 2.5" diameter x 4" high. Plastic spacers separate the electrodes. The positive electrode was a lead strip 1.5 inches wide and 4 inches high. The negative electrode was a strip of zinc 1.5 inches wide and 4 inches high. The electrolyte solution was prepared by dissolving 44.1 grams of at least 99.0% sodium sulfate in 200 milliliters of water. After charging the battery at 3.0 volts for 25 minutes, an open circuit voltage of 2.75 volts was observed. Discharge the battery through a loop containing the flash bulb, producing 95mA.

[0028] (2) The same battery as used in Example (1) was used. In this operation, an electrolyte solution was prepared by dissolving 45.1 grams of at least 99.0% lithium sulfate monohydrate in 200 milliliters of water. An open circuit voltage of 2.72 volts was obtained after charging the battery at 3.0 volts for 25 minutes. The battery draws 92 milliamps through the same circuit as used in example (1).

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Abstract

A rechargeable battery is provided such that the positive electrode comprises lead, the negative electrode zinc, and the electrolyte is an aqueous solution of an alkali metal sulphate. Upon discharge, lead dioxide is reduced to lead sulphate and zinc is oxidized to zinc oxide. The reactions are reversed when the battery is charged.

Description

[0001] Related applications [0002] This application is a continuation-in-part of U.S. Application No. 11 / 249,223, filed October 13, 2005 (currently pending), which in turn is the 10th U.S. application filed on January 13, 2004. Continuation of U.S. Application No. 756,015 (abandoned). Additionally, this application is a continuation-in-part of U.S. Application No. 11 / 167,535, filed June 27, 2005 (currently pending), which is a continuation-in-part of U.S. Application No. 11 / 167,535, filed January 13, 2004. Continuation-in-part of U.S. Application No. 10 / 756,015 (abandoned). technical field [0003] The present invention relates to a novel type of battery known for its unique electrochemistry. The positive electrode includes lead dioxide and the negative electrode includes zinc. The electrolyte consists of an aqueous solution of alkali metal sulfates. Various buffers including carbonates, borates, silicates and phosphates can be added to the electrolyte. On discharge, l...

Claims

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Application Information

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IPC IPC(8): H01M10/24H01M10/26
CPCH01M4/42H01M4/56H01M10/06H01M10/08H01M10/22H01M10/24H01M10/26Y02E60/10
Inventor 约翰·E·斯托弗
Owner 约翰·E·斯托弗
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