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Nickel tetrapyridylporphyrin/activated carbon Li/SOCl2 battery carbon positive electrode catalytic material and preparation method thereof

A technology of catalytic material and battery positive electrode, applied in battery electrodes, non-aqueous electrolyte batteries, organic electrolyte batteries, etc., can solve the problems of affecting battery discharge time, winding, easy blocking of acetylene black, etc. Catalytic activity, the effect of avoiding plugging or entanglement

Inactive Publication Date: 2021-06-15
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

([7]Xu Z, Li H, Cao G, et al.Electrochemical performance of carbonnanotube-supported cobalt phthalocyanine and its nitrogen-rich derivatives for oxygen reduction[J].Journal of Molecular Catalysis A:Chemical,2011,335(1- 2):89-96.) However, carbon nanotubes or graphene are easy to block the pores of acetylene black or entangle acetylene black, thus affecting the Li / SOCl 2 battery discharge time

Method used

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  • Nickel tetrapyridylporphyrin/activated carbon Li/SOCl2 battery carbon positive electrode catalytic material and preparation method thereof
  • Nickel tetrapyridylporphyrin/activated carbon Li/SOCl2 battery carbon positive electrode catalytic material and preparation method thereof
  • Nickel tetrapyridylporphyrin/activated carbon Li/SOCl2 battery carbon positive electrode catalytic material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] The invention provides a tetrapyridoporphyrin nickel / activated carbon Li / SOCl 2 The preparation method of battery carbon positive electrode catalytic material specifically comprises the following steps:

[0026] Step 1: Weigh 1.82g 2,3-pyridinedicarboxylic acid, 2.05g urea, 0.98g nickel chloride hexahydrate, 0.39g ammonium molybdate tetrahydrate and 0.23g specific surface area of ​​1400m 2 / g pitch coke activated carbon, mixed and fully ground evenly.

[0027] Step 2: Put the above mixture in a crucible, transfer it to a muffle furnace, and in an air atmosphere, raise the temperature from room temperature to 140°C at a rate of 8°C / min, then keep it warm for 1h, and then increase the temperature at a rate of 5°C / min Raise the temperature to 240°C, keep the temperature for 2 hours, and cool to room temperature to obtain the crude product.

[0028] Step 3: Put the above crude product in a mortar and grind it into a fine powder, wash the fine powder with deionized water s...

Embodiment 2

[0033] The invention provides a tetrapyridoporphyrin nickel / activated carbon Li / SOCl 2 The preparation method of battery carbon positive electrode catalytic material specifically comprises the following steps:

[0034] Step 1: Weigh 0.92g 2,3-pyridinedicarboxylic acid, 1.55g urea, 0.68g nickel chloride hexahydrate, 0.19g ammonium molybdate tetrahydrate and 0.10g specific surface area of ​​1400m 2 / g pitch coke activated carbon, mixed and fully ground evenly.

[0035] Step 2: Put the above mixture in a crucible, transfer it to a muffle furnace, and in an air atmosphere, raise the temperature from room temperature to 120°C at a rate of 4°C / min, then keep it warm for 0.3h, and then increase the temperature at a rate of 6°C / min. The heating rate was raised to 220°C, kept for 0.5h, and cooled to room temperature to obtain the crude product.

[0036] Step 3: Put the above crude product in a mortar and grind it into a fine powder, wash the fine powder with deionized water for sever...

Embodiment 3

[0038] The invention provides a tetrapyridoporphyrin nickel / activated carbon Li / SOCl 2 The preparation method of battery carbon positive electrode catalytic material specifically comprises the following steps:

[0039] Step 1: Weigh 2.12g 2,3-pyridinedicarboxylic acid, 3.15g urea, 1.48g nickel chloride hexahydrate, 0.59g ammonium molybdate tetrahydrate and 0.30g specific surface area of ​​1400m 2 / g pitch coke activated carbon, mixed and fully ground evenly.

[0040] Step 2: Put the above mixture in a crucible, transfer it to a muffle furnace, and in an air atmosphere, raise the temperature from room temperature to 160°C at a rate of 10°C / min, then keep it warm for 50min, and then heat it up at a rate of 8°C / min. Raise the temperature to 300°C, keep the temperature for 2.5h, and cool to room temperature to obtain the crude product.

[0041] Step 3: Put the above crude product in a mortar and grind it into a fine powder, wash the fine powder with deionized water for several t...

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Abstract

The invention discloses a nickel tetrapyridylporphyrin / activated carbon Li / SOCl2 battery carbon positive electrode catalytic material and a preparation method thereof. The preparation method specifically comprises the following steps: mixing 1, 2, 3-pyridinedicarboxylic acid, urea, nickel chloride hexahydrate, ammonium molybdate tetrahydrate and pitch coke activated carbon are weighed according to the mass ratio of (0.92-2.12): (1.55-3.15): (0.68-1.48): (0.19-0.59): (0.10-0.30), and fully and evenly grinding to obtain a mixture; 2) sintering the mixture at 120-300 DEG C in an air atmosphere, and cooling to room temperature to obtain a crude product; and 3) grinding the crude product, purifying and drying to obtain the tetrapyridylporphyrin nickel / activated carbon Li / SOCl2 battery positive electrode catalytic material. According to the method, pitch coke activated carbon (AC) is used as a matrix to induce NiTAP nanocrystallization, active sites are fully exposed, and the conductivity is improved. The tetrapyridylporphyrin nickel / activated carbon Li / SOCl2 battery positive electrode catalytic material prepared by the method has the advantages of prolonging the battery discharge time and improving the discharge voltage platform.

Description

technical field [0001] The invention relates to the technical field of lithium primary batteries, in particular to a tetrapyridoporphyrin nickel / activated carbon Li / SOCl 2 Battery carbon cathode catalyst material and preparation method thereof. Background technique [0002] Lithium / thionyl chloride (Li / SOCl 2 ) battery as a high specific energy (590W h / Kg), high working voltage (up to 3.6V), wide temperature range (-55C-150C), long storage life (up to 10 years), maintenance-free and With the advantages of low annual self-discharge rate (≤1%), it has been widely used in military and civilian fields such as aerospace, oil exploration, medical equipment, smart meters, and electronic cigarettes. ([1]Du C, Liu S, Zhang W, et al. Nitrogen-Doped Carbon Nanotubes Based on Ionic Liquid Precursors as Effective Cathode Catalysts for Li / SOCl 2 Batteries[J].Journal of The Electrochemical Society,2018,165(9):A1955-A1960.[2]Gao Y,Li S,Wang X,et al.Carbon nanotubes chemically modified by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/38H01M4/60H01M4/62H01M6/16
CPCH01M6/16H01M4/60H01M4/625H01M4/382
Inventor 许占位王盈严皓李康张姿纬黄剑锋李嘉胤沈学涛
Owner SHAANXI UNIV OF SCI & TECH