CN103943816A - Magnesium storage primary battery - Google Patents

Abstract

The invention discloses a magnesium reserve primary battery, which comprises a positive electrode current collector and a relative negative electrode bottom, and a magnesium negative electrode is installed concentrically between the top wall and the negative electrode in the cavity of a cylindrical positive electrode current collector There are 6-12 seepage holes with a diameter of 2.5mm evenly distributed on the side of the magnesium negative tube, a diaphragm paper tube is wrapped on the outer wall of the magnesium negative tube, and liquid storage fibers are installed in the magnesium negative tube. An insulating ring is installed between the positive current collectors, water-absorbing fibers are filled between the positive current collectors on the insulating ring and the magnesium negative tubes, and three of the same length are filled sequentially between the positive current collectors on the water-absorbing fibers and the magnesium negative tubes. positive ring. The invention arranges liquid storage cavity and permeation channel inside the battery, increases the positive electrode density, doubles the short-circuit current and electric capacity of the battery, increases the application range of the battery, and has no heavy metal pollution.

Description

A magnesium reserve primary battery

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Technical field:

The present invention relates to storage batteries, in particular to a magnesium reserve primary battery with large short-circuit current, high capacitance, reasonable structure and good storage performance.

Background technique:

The current various storage batteries, although the materials used are different, all adopt the ordinary Leclanchet zinc-manganese battery structure. Because the battery does not have a liquid storage cavity inside, there is no liquid permeation channel, and the density of the positive electrode is loose, it has the disadvantages of small short-circuit current, low capacitance, small application range, and low efficiency.

Invention content:

The purpose of the present invention is to provide a magnesium storage primary battery with reasonable structure, large short-circuit current and capacitance, and wide application range.

The technical solution of the present invention is accomplished in the following manner, a magnesium storage primary battery, which includes a positive electrode current collector and a relative negative electrode bottom, characterized in that: in the cavity of a cylindrical positive electrode current collector, from the top A magnesium negative tube is installed concentrically between the wall and the negative electrode. On the side of the magnesium negative tube, there are 6-12 seepage holes with a diameter of 2.5mm. A diaphragm paper tube is wrapped on the outer wall of the magnesium negative tube. The liquid storage fiber is installed in the negative electrode tube, and an insulating ring is installed between the negative electrode bottom and the positive electrode current collector. The water-absorbing fiber is filled between the positive electrode current collector and the magnesium negative electrode tube on the insulating ring, and the positive electrode collector on the water-absorbing fiber is Three positive electrode rings of the same length are sequentially filled with the magnesium negative electrode tube.

The invention arranges liquid storage cavity and permeation channel inside the battery, increases the positive electrode density, doubles the short-circuit current and electric capacity of the battery, increases the application range of the battery, and has no heavy metal pollution.

Description of drawings:

Fig. 1 is a schematic structural diagram of the present invention; Fig. 2 is a schematic structural diagram of a liquid storage fiber; Fig. 3 is a schematic structural diagram of a water-absorbing fiber; Fig. 4 is a schematic structural diagram of an insulating ring; Fig. 5 is a schematic structural diagram of a negative electrode bottom.

Detailed ways:

The embodiment is described in detail in conjunction with the above drawings, which includes a positive electrode current collector 1 and a relative negative electrode bottom 8, and the improvement is that the center of the circle from the top wall to the negative electrode is concentric in the cavity of a cylindrical positive electrode current collector. A magnesium negative tube 4 is installed, and 6-12 seepage holes with a diameter of 2.5 mm are evenly distributed on the side of the magnesium negative tube, and a diaphragm paper tube 3 is wrapped on the outer wall of the magnesium negative tube, and a storage tank is housed in the magnesium negative tube. Liquid fiber 5, an insulating ring 7 is installed between the bottom of the negative electrode and the positive electrode current collector, water-absorbing fiber 6 is filled between the positive electrode current collector on the insulating ring and the magnesium negative tube, the positive electrode current collector on the water-absorbing fiber and the magnesium Three positive electrode rings 2 with the same length are sequentially filled between the negative electrode tubes. The positive electrode current collector of the battery is made of ordinary alkaline battery steel shell, and the positive electrode ring is pressed by manganese, carbon, electrolyte powder and binder with a ring pressing machine, and then pressed into the positive electrode current collector close to the wall of the cylinder, magnesium The negative electrode tube is extruded from magnesium alloy, wrapped with diaphragm paper and inserted into the positive electrode ring to form a liquid storage cavity, and then filled with liquid storage fibers in the liquid storage cavity, and then filled with water-absorbing fibers and insulating rings in the lower part, and finally It is sufficient to seal the bottom of the negative electrode and the current collector of the positive electrode.

Claims (1)

1. A magnesium reserve primary battery, comprising a positive current collector and an opposite negative electrode substrate, characterized in that: a magnesium cathode tube is concentrically arranged in a cavity of a cylindrical anode current collector from a top wall to a cathode, 6-12 seepage holes with the diameter of 2.5mm are evenly distributed in the side face of the magnesium cathode tube, a diaphragm paper tube is wrapped on the outer wall of the magnesium cathode tube, liquid storage fibers are arranged in the magnesium cathode tube, an insulating ring is arranged between the bottom of the cathode and the anode current collector, water absorption fibers are filled between the anode current collector above the insulating ring and the magnesium cathode tube, and three anode rings with the same length are sequentially filled between the anode current collector above the water absorption fibers and the magnesium cathode tube.