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Graphene-bismuth oxide composite material as well as preparation method thereof, lead carbon battery cathode diachylon as well as preparation method thereof and lead carbon battery cathode plate

A technology of composite materials and lead-carbon batteries, which is applied in the direction of lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problem of severe hydrogen evolution on the negative plate of lead-carbon batteries, prevent battery dehydration, ensure service life, and have simple preparation methods Effect

Inactive Publication Date: 2014-05-21
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, graphene, as a carbon material with a high specific surface area, also has the problem of serious hydrogen evolution on the negative electrode plate of lead-carbon batteries when it is used alone as the buffer material for the negative electrode of the lead-carbon battery.

Method used

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  • Graphene-bismuth oxide composite material as well as preparation method thereof, lead carbon battery cathode diachylon as well as preparation method thereof and lead carbon battery cathode plate

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preparation example Construction

[0060] In addition, the present invention also provides a kind of preparation method of graphene-bismuth oxide composite material, comprises the following steps:

[0061] (1) Add graphene to water, and sonicate for 0.5 to 1 hour to form a graphene suspension with a concentration of 1 to 10 mg / mL;

[0062] (2) Add bismuth oxide to the graphene suspension at a mass ratio of bismuth oxide to graphene of 0.005-0.25:1, stir vigorously for 0.5-2 hours, and stand at 20-50°C after stirring completely 12 to 24 hours;

[0063] (3) Filtration, filtering and drying the filter residue to obtain a graphene-bismuth oxide composite material.

[0064] The bismuth oxide is added according to the mass ratio of bismuth oxide to graphene of 0.05-0.25:1.

[0065] The vigorous stirring is mechanical stirring, and the rotating speed of the stirrer is 200~800r / min.

[0066] The drying is vacuum drying, the drying temperature is 60-80° C., and the drying time is 1-2 hours.

[0067] In the preparati...

Embodiment 1

[0121] A kind of preparation method of graphene-bismuth oxide composite material, comprises the following steps:

[0122] (1) Take 100 parts of graphene and add it to deionized water, and sonicate for 0.5 hours to form a graphene suspension with a concentration of 1 mg / mL;

[0123] (2) Add 25 parts of bismuth oxide to the above-mentioned graphene suspension, stir vigorously at a speed of 500r / min for 0.5 hours, and stand at 50°C for 24 hours after the stirring is completed;

[0124] (3) Filtration, filter the filter residue into a vacuum drying oven, and dry at 60° C. for 2 hours to obtain a graphene-bismuth oxide composite material.

[0125] The graphene-bismuth oxide composite material includes graphene and bismuth oxide supported on graphene sheets, and the mass ratio of bismuth oxide to graphene is 0.25:1.

[0126] A preparation method of lead-carbon battery negative electrode paste, comprising the following steps:

[0127] (4) Take 100 parts of lead powder, 0.1 part of ...

Embodiment 2

[0137] A kind of preparation method of graphene-bismuth oxide composite material, comprises the following steps:

[0138] (1) Take 100 parts of graphene and add it to deionized water, and sonicate for 1 hour to form a graphene suspension with a concentration of 5 mg / mL;

[0139] (2) Add 20 parts of bismuth oxide to the above-mentioned graphene suspension, stir vigorously at a speed of 200r / min for 2 hours, and let stand at 20°C for 12 hours after stirring;

[0140] (3) Filtration, filter the filter residue into a vacuum drying oven, and dry at 80° C. for 1 hour to obtain a graphene-bismuth oxide composite material.

[0141] The graphene-bismuth oxide composite material includes graphene and bismuth oxide loaded on graphene sheets, and the mass ratio of bismuth oxide to graphene is 0.2:1.

[0142] A preparation method of lead-carbon battery negative electrode paste, comprising the following steps:

[0143] (4) Take 100 parts of lead powder, 0.3 parts of barium sulfate, 2 part...

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Abstract

The invention discloses a graphene-bismuth oxide composite material. The graphene-bismuth oxide composite material comprises graphene as well as bismuth oxide loaded on a graphene sheet layer, wherein the mass ratio of bismuth oxide to graphene is (0.005-0.25):1. The invention also discloses a preparation method of the composite material as well as lead carbon battery cathode diachylon comprising the composite material as well as a preparation method of the lead carbon battery cathode diachylon and a lead carbon battery cathode plate. According to the invention, the generation of hydrogen on the surface of graphene is inhibited by loading bismuth oxide on the sheet layer of graphene, so that the hydrogen evolution phenomenon of the lead carbon battery cathode plate is inhibited; the reduction of lead carbon battery current efficiency and the battery water loss phenomenon are prevented effectively; the service life of the lead carbon battery is ensured.

Description

technical field [0001] The invention relates to the field of graphene material synthesis, in particular to a graphene-bismuth oxide composite material and a preparation method thereof, a lead-carbon battery negative electrode lead paste and a preparation method thereof, and a lead-carbon battery negative plate. Background technique [0002] A lead-acid battery is a battery whose electrodes are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. Since the invention of lead-acid batteries by the Frenchman Plante in 1859, lead-acid batteries have experienced more than 150 years of development. Lead-acid batteries have low cost, long life, good safety performance, and the recycling rate of waste batteries is as high as 95%. Therefore, it has always been the most widely used product in the battery field. [0003] With the rapid development of electric vehicles and electric bicycles, a new battery based on lead-carbon technology has gradually emer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M4/38H01M4/14
CPCH01M4/14H01M4/57H01M4/625H01M4/628Y02E60/10
Inventor 周明杰王要兵钟玲珑吴凤
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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