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Manganese oxyhydroxide self-supporting composite electrode and its preparation method and application

A manganese oxyhydroxide and composite electrode technology, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems of poor conductivity, complex process, and numerous process steps.

Active Publication Date: 2020-08-14
XINXIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the addition of a binder, this electrode manufacturing method often has poor conductivity; it needs to weld the tabs, which increases the cost; the whole process has many steps and complicated processes

Method used

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  • Manganese oxyhydroxide self-supporting composite electrode and its preparation method and application
  • Manganese oxyhydroxide self-supporting composite electrode and its preparation method and application
  • Manganese oxyhydroxide self-supporting composite electrode and its preparation method and application

Examples

Experimental program
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Embodiment 1

[0017] (1) Cut foam nickel (NF) into The shape (1×1×1.5cm), put it into a beaker, add acetone, and sonicate in an ultrasonic cleaner for 10 minutes. Then, put it in a vacuum drying oven at 80°C for 24 hours;

[0018] (2) Place the NF in (1) in a crucible, then put the crucible into a high-temperature tube furnace, evacuate the tube furnace, and feed Ar (200 sccm) and H 2 (100sccm), the high-temperature tube furnace program is set to heat up to 1000°C at a rate of 50°Cm, and CH 4 (100sccm), followed by constant temperature for 1h, after reaching the time, turn off H 2 and CH 4 , after cooling down to room temperature naturally, turn off Ar to get nickel foam / graphene foam (NF / GF electrode)

[0019] (3) Configure the mixed solution of 0.1M sodium sulfate and 0.1M manganese acetate as the electrolyte, the electrode prepared above as the working electrode, the platinum sheet as the auxiliary electrode, and the saturated calomel electrode as the reference electrode to form a t...

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Abstract

The invention discloses a manganese oxyhydroxide self-supporting composite electrode, a preparation method and application thereof. NF / GF / MnOOH self-supporting composite electrodes were prepared by vapor deposition and electrodeposition. The electrode has high capacity, good rate performance and long cycle stability.

Description

technical field [0001] The invention relates to the preparation technology of a battery supercapacitor electrode, in particular to a manganese oxyhydroxide self-supporting composite electrode and a preparation method and application thereof. Background technique [0002] In the traditional electrode manufacturing process, the active material, conductive agent and binder are generally mixed to make a slurry or film, and then coated or pressed on the current collector, and then a metal strip is welded on one end of the pole piece as a tab. , thus making an electrode. Due to the addition of a binder, this electrode manufacturing method often has relatively poor conductivity; it needs to weld the tabs, which increases the cost; the whole process has many steps and complicated processes. The electrode of the self-supporting structure is a one-time molding preparation method, the process is simple, the production cost can be reduced, and the conductivity of the electrode can be i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/26H01G11/28H01G11/46
CPCH01G11/26H01G11/28H01G11/46H01G11/86Y02E60/13
Inventor 杨杰陈改荣马志华王刘杰张晨阳姚文惠
Owner XINXIANG UNIV