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Acid mixture for the electrolyte of a galvanic battery, and a method for producing said mixture
| Details |
Inventors: Hakkinen, Allan K.;
Assignee: Oy Airam AB (Helsinki, FI)
Primary Examiner: Walton; Donald L.
Assistant Examiner:
Attorney, Agent or Firm: Bucknam and Archer
There is provided an acid mixture to use as the electrolyte of a galvanic battery of the type in which the electrolyte flows through the battery cells as a liquid solution, said mixture being composed of sulfuric acid and powdered chromic acid. The acids are mixed together to form a paste-like mass which is, when the battery is being used, introduced into the water stream flowing into the battery. Flaky chromic acid may be pulverized by grinding in a ball mill before mixing with the sulphuric acid, or the acid components may be mixed before such grinding. |
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DETAILED DESCRIPTION What is claimed is: 1.
An electrolyte precursor composition for use in a galvanic battery in which the electrolyte flows as a liquid solution, said composition comprising a paste-like mixture of concentrated sulphuric acid and powdered chromic acid.
2.
A composition according to claim 1 which contains powdered chromic acid and concentrated sulphuric acid in a weight ratio of about 1:1.
3.
3.
A composition according to claim 1, wherein the particle size of the powdered chromic acid is such that at least 95% of it passes 200 mesh.
4.
A method for producing an acid mixture to be used for the formation of the electrolyte of a galvanic battery in which the electrolyte flows as a liquid solution comprising mixing powdered chromic acid and concentrated sulphuric acid together to form a paste-like mass.
5.
A method according to claim 4, wherein flaky chromic acid is pulverized and thereupon mixed with sulphuric acid.
6.
A method according to claim 5, wherein the chromic acid is pulverized in a ball mill.
7.
A method according to claim 4, wherein flaky chromic acid is first mixed with sulphuric acid and thereafter the wet mass is ground to pulverize the chromic acid.
8.
A method according to claim 7, wherein the wet mass is ground in a ball mill.
9.
A method according to claim 4, wherein the chromic acid and the sulphuric acid are mixed with each other in a weight ratio of 1:1.
3.
Description:
BACKGROUND OF THE INVENTION 1.
Field of the Invention The present invention relates to an acid mixture to be used as the electrolyte precursor of a galvanic battery in which the electrolyte flows as a liquid solution.
The invention also relates to a method for producing such an acid mixture.
2.
Description of the Prior Art In many mobile devices, as well as in reserve power plants, etc.
, batteries are needed which are capable of providing, with high efficiency, energy for a short time and are also lightweight and store well.
In batteries of the type specified in the introduction, the power of the battery has been increased by causing the electrolyte to flow through its cells
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