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A hybrid supercapacitor based on carbon packs of waste zinc-manganese dry batteries

A technology for supercapacitors and manganese dry batteries, which is applied in the manufacture of hybrid capacitors, hybrid capacitor electrodes, and hybrid/electric double-layer capacitors. It can solve the problems of hybrid supercapacitors and achieve the effects of protecting the environment and increasing added value.

Active Publication Date: 2020-05-22
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, there is no relevant report in the literature on the assembly of hybrid supercapacitors using waste zinc-manganese dry battery carbon packs as the positive electrode material.

Method used

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  • A hybrid supercapacitor based on carbon packs of waste zinc-manganese dry batteries
  • A hybrid supercapacitor based on carbon packs of waste zinc-manganese dry batteries
  • A hybrid supercapacitor based on carbon packs of waste zinc-manganese dry batteries

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] 1. To recover carbon packs from waste zinc-manganese dry batteries, the steps are as follows:

[0074] Collect R6P UM3 SIZE AA 1.5 V Huatai waste zinc-manganese dry batteries, disassemble them, and separate the carbon pack from other components (wrapping paper, zinc shell, carbon rod, copper cap).

[0075] Take 10 g of carbon packs, transfer them to a large beaker, add 50 mL of absolute ethanol, stir magnetically at room temperature for 1 h; filter with suction, and collect the filter cake.

[0076] Transfer the filter cake to a large beaker, add 100 mL of distilled water, and stir magnetically for 1 h at room temperature; filter with suction, wash the filter cake twice with a small amount of ethanol, collect the filter cake, and dry it in an oven at 60 °C for 12 h to obtain Waste zinc-manganese dry battery carbon pack sample S-1.

[0077] 2. The preparation of nitrogen-doped carbon-coated sodium titanium phosphate, the steps are as follows:

[0078] Dissolve 6 mmol o...

Embodiment 2

[0093] 1. To recover carbon packs from waste zinc-manganese dry batteries, the steps are as follows:

[0094] Collect LR6 AA 1.5 V Nanfu used zinc-manganese dry batteries, disassemble them, and separate the carbon pack from other components (wrapping paper, zinc shell, carbon rod, copper cap).

[0095] Take 10 g of carbon packs, transfer them to a large beaker, add 100 mL of absolute ethanol, stir magnetically at room temperature for 1 h; filter with suction, and collect the filter cake.

[0096] Transfer the filter cake to a large beaker, add 100 mL of distilled water, and stir magnetically for 1 h at room temperature; filter with suction, wash the filter cake twice with a small amount of ethanol, collect the filter cake, and dry it in an oven at 120 °C for 6 h to obtain Waste zinc-manganese dry battery carbon pack sample S-3.

[0097] 2. The preparation of nitrogen-doped carbon-coated sodium titanium phosphate, the steps are as follows:

[0098] Dissolve 12 mmol of titanat...

Embodiment 3

[0113] 1. To recover carbon packs from waste zinc-manganese dry batteries, the steps are as follows:

[0114] Collect R03 / AAA SIZE / 1.5 V Huatai waste zinc-manganese dry batteries, disassemble them, and separate the carbon pack from other components (wrapping paper, zinc shell, carbon rod, copper cap).

[0115] Take 10 g of carbon packs, transfer them to a large beaker, add 100 mL of absolute ethanol, stir magnetically at room temperature for 1 h; filter with suction, and collect the filter cake.

[0116] Transfer the filter cake to a large beaker, add 50 mL of distilled water, and stir magnetically at room temperature for 2 h; filter with suction, wash the filter cake with a small amount of ethanol for 3 times, collect the filter cake, and dry it in a vacuum oven at 60 °C for 10 h. The carbon pack sample S-5 of recycled waste zinc-manganese dry batteries was obtained.

[0117] 2. The preparation of nitrogen-doped carbon-coated sodium titanium phosphate, the steps are as follo...

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Abstract

The invention relates to a hybrid supercapacitor based on waste zinc-manganese dry battery carbon package and a preparation method thereof, and belongs to the technical field of electrochemical energystorage devices and assembly. Zinc-manganese dry battery carbon package recycled as a solid is an active material, a polyvinylidene fluoride is a bind, and acetylene black is a conductive agent, andthat positive electrode is coated on the current collector; C-coated sodium titanium phosphate with nitrogen as active material, polyvinylidene fluoride as bind and acetylene black as conductive agentare coated on the current collector to obtain a negative electrode; a positive electrode and a negative electrode are coated with an active material, and a diaphragm is added between the positive electrode and the negative electrode to saturate the diaphragm and adsorb the electrolyte, and the diaphragm is sealed to obtain a hybrid supercapacitor. The hybrid supercapacitor is cycled 2000 revolutions at 0.5 A / g with a capacity retention rate of (relative to the first revolution)80-95%, with a specific energy of 14-17 Wh / kg, corresponding to a specific power of 503 W / kg.

Description

technical field [0001] The invention relates to a hybrid supercapacitor based on carbon packs of waste zinc-manganese dry batteries and a preparation method thereof, belonging to the technical field of electrochemical energy storage devices and assembly. Background technique [0002] Supercapacitors, also known as electrochemical capacitors, have the advantages of high power density, long cycle life, safety and low cost; however, compared with batteries, supercapacitors have low energy density. According to the supercapacitor energy density ( E ) calculation formula E = cv 2 / 2( Adv Mater 2017, 29, 1700804.), of which C and V are the specific capacity and working potential window of the device, respectively, and increasing the specific capacity or working potential window of the device can increase the energy density of the device. Given V It is a square term in the formula, and expanding the working potential window of the device is more conducive to improving the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/04H01G11/84H01G11/44
CPCH01G11/04H01G11/44H01G11/84Y02E60/13
Inventor 盖利刚郭秀梅栾振红班青
Owner QILU UNIV OF TECH
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