RU96119464A

RU96119464A - ALUMINUM AIR BATTERY, BATTERY BASED ON THE ALUMINUM AIR BATTERY AND METHOD FOR OPERATING THE BATTERY

Info

Publication number: RU96119464A
Application number: RU96119464/09A
Authority: RU
Inventors: В.В. Алехин; А.П. Былинкин; Г.И. Гуськова; А.Е. Ивлева; Е.Б. Кулаков; С.Д. Севрук; О.М. Черский
Original assignee: Научно-производственный комплекс источников тока "Альтэн"
Filing date: 1996-09-30
Publication date: 1998-12-20

Claims

1. A box-type metal-air galvanic cell, comprising a flat consumable metal anode placed in a reservoir with an electrolyte, a gas diffusion cathode located at some distance from the working surface of the anode and freely washed outside with gas, such as air, an electrolyte tank with a filling hole in its upper part, a gas collection chamber, characterized in that in the upper part of the electrolyte tank around the filling hole there is a continuous conical protrusion, which plays the role of labyrinth seal, in the middle part of the side walls of the electrolyte tank and in its lower part two restrictive protrusions are made, in the lower part of the electrolyte tank (V) there is a chamber (V _sl ) for collecting sludge with a volume ratio of V: V _sl = 5 - 15, the thickness of the anode within 1 - 3 mm is 0.05 - 0.50 of the size of the cathode gap, the volume of the electrolyte capacity is determined by the expression:
V = V _el + V _en ;
V _email = q _email x Q xnxk ₁ ;
V _en = (q _ex + q _cor ) x Q xnxk ₂ ;
where V is the volume of electrolyte capacity, cm ³ ;
V _el - electrolyte volume, cm ³ ;
V _en - the volume of the anode, cm ³ ;
q _el - specific consumption of water from the electrolyte, cm ³ / A • h;
q _eh is the specific consumption of aluminum for the electrochemical reaction, cm ³ / A • h;
q _cor - specific consumption of aluminum for corrosion, cm ³ / A • h;
Q is the capacity of the element in one cycle, A • h;
n is the number of cycles;
k ₁ = (0.44 - 1.45) is the design coefficient;
k ₂ = (1.97 - 1.49) - design coefficient;
and the ratio of length (a), width (b) and height (c) is:
2. A primary aluminum-air battery containing one or more elements, characterized in that the element according to claim 1 is taken as an element.

3. A method of operating an alkaline air-metal chemical current source by discharging and subsequently replacing the anodes and electrolyte with fresh ones, characterized in that, in order to reduce the time the battery reaches the specified mode, the anodes are pre-treated in an aqueous solution of sodium hydroxide with a concentration of 2 to 5 mol / l with the addition of tri-aqueous sodium metastannate concentration of 0.01 - 0.10 mol / l.