JPS60117558A - Air cell - Google Patents

Abstract

PURPOSE:To improve the discharge performance of an air cell by adding an alkali salt of manganese phthalocyanine tetrasulfonic acid used as an oxygen carrier to prepare alkaline electrolyte. CONSTITUTION:In an air cell containing zinc used as a negative active material, an alkali salt of manganese phthalocyanine tetrasulfonic acid used as an oxygen carrier is added to prepare electrolyte consisting of an aqueous caustic alkali solution. Next, a proper thickener is added to the solution to make a gel, thereby obtaining an alkaline electrolyte. An air cell constituted by using this electrolyte has a relatively high current density and a good discharge performance.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement of an air battery using a cathode obtained by kneading amalgamated zinc powder and a gelled alkaline electrolyte, This relates to air batteries with excellent performance.

Conventional air cell Ll:j button type air cell 1i is silver.

141 compared to mercury and alkaline manganese button batteries
nO('In, 500fl(1)tl(:Anti-Teno 11 air → 11 ability is good, but discharge performance with resistance of 10Ω and 50Ω is poort+,!:It had a drawback.This it l:
Il, air frost, excretion ``composition L''C oxygen of activated carbon of the air electrode + +'; fil-force is low 1・l-,,'lL
+: The discharge performance of the oil deteriorates, and the oxygen in the air required for the gas electrode is not supplied.
considered. However, the oxygen in the activated carbon at the air electrode7. In order to reduce the deterioration of the original capacity, activated carbon ((addition!, l(Yatai PI 27): Deterioration of the electrode will be reduced.

Acid (, 111, to some extent because the supply is not il:i for some time.

+1. (Although it is good, no improvement in discharge performance could be expected.

To the unknown person wa l':I: + Ta! Based on the idea that it is best to include an oxygen carrier in the electrolytic solution in order to constantly supply oxygen to the activated carbon surface or active sites of the gas electrode, we have finally completed the present invention as a result of intensive research. It is.

Namely, 1. In the present invention, quick lead is used as the cathode active material, and a caustic alkali aqueous solution is used as the cathode active material. In an air battery using lj solution, alkali release: iIl'r /IV, by adding manganese phthalate r+-7 anino-teI-las sulfonic acid alkaline base as an oxygen carrier to J: release'l[i: +'l ability is directed to -1-.

The manganese phthalate 1: + 7'J-n.
: In the interview sulfonation of No; J et al., 11, so 6
-fluhophthalic acid, ammonium 3-sulfophthalate,
A mixture of 4-sulfophthalic acid and 4-sulfofucuric acid is reacted with n, manganese chloride, urea, and molybdate anomone at 170-180°C, followed by hot water extraction, jλ11 analysis, and 1 filtration. , 1 Lii for impurity extraction IN by f alcohol! I et al J! Ru. and 0 in the electrolyte
Addition of Fi in 5 to 5; 7. Use 1 bath.

Add and dissolve the alkali salt of conomanganese phthalo/-)'nin-teI-disulfonic acid in a 113', l'l'l solution to (·, i+-'hl'1'γ aqueous alkali solution).

To this solution, add l+', 17 viscosity such as carboquinnoble, nilulose, polyvinylpyrrolidone, etc. to form a gel.

This alkali solution and the above-mentioned zinc are kneaded to form a cathode.Also, as a catalyst, a catalyst such as silver oxide, platinum, or phthalonanine can be combined. Tan γ-nesplanok, Chany Rubratsk.

Carbon blanks such as thermal black.

Examples include activated carbon and graphite made from water, charcoal, shell charcoal, parts, nuclear coal, coal, petroleum residue, synthetic resin, and organic waste.

1 actual hf1L example) 1 (with 1 detailed description of the present invention/) 3, not hf1i1 (1 the ℃ extreme l'!! ;::,) 111i lead powder and "C water ji11 !Amalgamation is 8~
Use 10 weight 111% 91] to 100 horn 7 units.

Electrolysis t+'kt: l/lD%, 'Ffl' l potassium water bath solution with manganese phthalon-no'ene 7, . 4+, 3u,
311 Tetrasulfonic acid tetranonoriuno, “Lf A
'1 'if, it will be 41%' = sea urchin commonly understood,
Processed with Carbogin Methyl Cellulose 205% by weight.

After increasing the viscosity, zinc powder was added and kneaded to form a cathode.

(Manufacturing method of air electrode) Silver oxide 2 jfc + IL part, 10 parts of coconut shell activated carbon with a particle size of 01 to 1 μm, artificial graphite with a particle size of 01 to 05 μm, and 5 parts of thermoplastic resin were mixed well, and the mixture was heated to 20”J. '/l! Sheet-shaped glue with a thickness of 05 rhyme in J)・Ki frame I: 1/ko.

Cathode obtained above) -! +!・Electrode and delivery month 11-,
−(.

``6 diameter 11.5m+a, height 5.2 WAI+ person, I got a button 711.il air battery.

Comparative example Manganese lid "1/anine 3,3'" in Examples.

3", 3" - Make a button shape in the same manner as in the example using a tetrapotassium tetrasulfonate base) 1"
, I had a pond.

Obtained in the Examples and Comparative Examples; - Using a battery, discharge at a resistance (-Ω). II/′]
An air cell in which an alkali rasulfonic acid J'-no-no-l-rasulfonic acid alkali J-as an electrolyte is added to a -C1'rf alkaline aqueous solution has good discharge performance even at a relatively large current W).

[Brief explanation of the drawing]

Figure 1 shows the discharge characteristics of a button-type air cell using an actual M1l example and a comparative example. The discharge curve is iff: illill &−.1.”+1+,
IIE (V), lateral illil + Id discharge time (
Illt) Rofuichi j. .

Claims (1)

[Claims] Zinc is used as the cathode active material, and caustic/alkaline water (rr 7+
", 4.Installed into an air battery using an electric N solution, and used an alkaline electrode as an oxygen carrier -C-?Ngannota IJ
Cyaninte 1゛rasulfonic acid alkali salt M'> hl
l 1. , an air battery characterized by an lrc.