Preparation method of Li/socl2 battery positive electrode catalytic material nipc/AC

A battery positive electrode and catalytic material technology, which is applied to battery electrodes, circuits, electrical components, etc., can solve the problems of poor catalytic performance, poor electrical conductivity, and unfavorable reactions of materials, and achieve low cost, improved catalytic activity, and simple preparation process easy to control effect

Inactive Publication Date: 2020-03-27
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, MPc usually presents a large block structure, which is not conducive to full reaction
In addition, MPc often has poor catalytic performance due to poor conductivity and other problems.

Method used

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  • Preparation method of Li/socl2 battery positive electrode catalytic material nipc/AC
  • Preparation method of Li/socl2 battery positive electrode catalytic material nipc/AC
  • Preparation method of Li/socl2 battery positive electrode catalytic material nipc/AC

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A Li / SOCl 2 The preparation method of battery cathode catalyst material NiPc / AC comprises the following steps:

[0021] Step 1: Take 0.80g of phthalic anhydride and 0.08g of phthalic anhydride with a specific surface area of ​​1400m 2 The pitch coke activated carbon of / g, the urea of ​​1.00g, the nickel chloride hexahydrate of 0.606g and the ammonium molybdate tetrahydrate of 0.10g are mixed and placed in a mortar and thoroughly ground to obtain a mixture;

[0022] Step 2: Put the mixture in a crucible and put it into a muffle furnace, then raise the temperature from room temperature to 130°C at a rate of 7°C / min and keep it for 30 minutes, and then increase the rate of temperature to 250°C at a rate of 7°C / min And keep it warm for 2.5h to carry out solid-phase sintering, and cool to room temperature to obtain a crude product;

[0023] Step 3: Grind the crude product, wash and purify it repeatedly with ultrapure water, and then dry it at 80°C for 18 hours to obtain L...

Embodiment 2

[0028] A Li / SOCl 2 The preparation method of battery cathode catalyst material NiPc / AC comprises the following steps:

[0029] Step 1: Take 1.00g of phthalic anhydride and 0.10g of phthalic anhydride with a specific surface area of ​​1400m 2 The pitch coke activated carbon of / g, the urea of ​​1.20g, the nickel chloride hexahydrate of 0.808g and the ammonium molybdate tetrahydrate of 0.12g are mixed and placed in a mortar and thoroughly ground to obtain a mixture;

[0030] Step 2: Put the mixture in a crucible and put it into a muffle furnace, then raise the temperature from room temperature to 140°C at a rate of 8°C / min and keep it for 40 minutes, and then increase the rate of temperature to 270°C at a rate of 8°C / min And keep warm for 3h to carry out solid phase sintering, cool to room temperature, get crude product;

[0031] Step 3: After grinding the crude product, it was repeatedly washed and purified with ultrapure water, and then dried at 90°C for 21 hours to obtain L...

Embodiment 3

[0033] A Li / SOCl 2 The preparation method of battery cathode catalyst material NiPc / AC comprises the following steps:

[0034] Step 1: Take 0.60g of phthalic anhydride and 0.06g of phthalic anhydride with a specific surface area of ​​1400m 2 The pitch coke activated carbon of / g, the urea of ​​0.80g, the nickel chloride hexahydrate of 0.404g and the ammonium molybdate tetrahydrate of 0.08g are mixed and placed in a mortar and thoroughly ground to obtain a mixture;

[0035] Step 2: Put the mixture in a crucible and put it into a muffle furnace, then raise the temperature from room temperature to 130°C at a rate of 6°C / min and keep it for 10 minutes, and then increase the rate of temperature to 230°C at a rate of 6°C / min And keep warm for 2h to carry out solid-phase sintering, and cool to room temperature to obtain crude product;

[0036] Step 3: Grind the crude product, wash and purify it repeatedly with ultrapure water, and then dry it at 70°C for 15 hours to obtain Li / SOCl ...

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Abstract

The invention discloses a preparation method of a Li / SOCl2 battery positive electrode catalytic material NiPc / AC. The method comprises the following steps of respectively grinding and mixing phthalicanhydride, pitch coke activated carbon, urea, nickel chloride hexahydrate and ammonium molybdate tetrahydrate to obtain a mixture; putting the mixture into a crucible for solid-phase sintering, and cooling to room temperature to obtain a crude product; and grinding the crude product, purifying and drying to obtain the Li / SOCl2 battery positive electrode catalytic material NiPc / AC. The prepared positive electrode catalytic material has the excellent catalytic performance for the Li / SOCl2 batteries.

Description

technical field [0001] The invention belongs to the technical field of battery electrode catalytic materials and relates to a Li / SOCl 2 The invention discloses a preparation method of NiPc / AC, a cathode catalyst material for a battery. Background technique [0002] Li / SOCl 2 The battery is a primary battery with the highest specific energy in practical applications at present. Li / SOCl 2 Batteries have the advantages of high specific energy, high working voltage, long storage life, wide operating temperature range and low annual self-discharge rate, and are widely used in military and civilian applications such as aerospace, oil exploration, medical equipment, electronic smart meters, and electronic cigarettes. field. Currently Li / SOCl 2 The main problem with the battery is the SOCl as the positive electrode 2 The reduction rate is slow and the lithium ions migrate to the surface of the carbon positive electrode during the reaction to form a dense LiCl passivation film,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M4/88
CPCH01M4/8825H01M4/90H01M4/9041H01M4/9075Y02E60/50
Inventor 许占位王盈关伟伟黄剑锋严皓沈学涛孔硌杨军
Owner SHAANXI UNIV OF SCI & TECH
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