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A kind of positive electrode grid of graphene lead-carbon battery and preparation method thereof

A lead-carbon battery and graphene technology, applied in the field of electrochemical power supply, can solve the problems of volume expansion of the positive plate of the battery, weak charging acceptance, muddying of the positive plate of the battery, etc., and achieve guaranteed performance, strong charging acceptance and service life. long effect

Active Publication Date: 2022-05-03
QUANZHOU KAIYING POWER SUPPLY ELECTRICAL APPLIANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the currently used lead-carbon battery positive grid, due to the relatively obvious volume expansion of the positive plate of the battery during charging, and the occurrence of muddying of the positive plate of the battery, there are still the following problems:
[0005] 1. Weak charging acceptance;
[0006] 2. Short service life

Method used

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  • A kind of positive electrode grid of graphene lead-carbon battery and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0056] A graphene lead-carbon battery positive electrode grid, the graphene lead-carbon battery positive electrode grid comprising a lead grid blank and graphene lead paste covering the surface of the lead grid blank;

[0057] Described graphene lead paste is made up of the raw material that comprises following weight part:

[0058] 750 parts of sponge lead,

[0059] Barium sulfate 10 parts,

[0060] 1.4 parts of graphene,

[0061] 0.75 parts of polyacrylonitrile-based carbon fiber,

[0062] 0.9 parts of carboxylated carbon nanotubes,

[0063]60 parts of water-based polyurethane,

[0064] 0.7 parts of isocyanate,

[0065] 80 parts of dodecyl alcohol,

[0066] 40 parts of isopentyl glycol,

[0067] 0.2 parts of polyoxyethylene lauryl ether.

[0068] In this embodiment, the polyacrylonitrile-based carbon fiber has a length of 3 mm.

[0069] In this embodiment, the carboxylated carbon nanotubes are carboxylated multi-walled carbon nanotubes.

[0070] In this embodiment,...

Embodiment 2

[0080] A graphene lead-carbon battery positive electrode grid, the graphene lead-carbon battery positive electrode grid comprising a lead grid blank and graphene lead paste covering the surface of the lead grid blank;

[0081] Described graphene lead paste is made from the raw material that comprises following weight part:

[0082] 820 parts of sponge lead,

[0083] 14 parts of barium sulfate,

[0084] 1.8 parts of graphene,

[0085] 0.85 parts of polyacrylonitrile-based carbon fiber,

[0086] 1.2 parts of carboxylated carbon nanotubes,

[0087] 90 parts of water-based polyurethane,

[0088] 0.9 parts of isocyanate,

[0089] 95 parts of dodecyl alcohol,

[0090] 50 parts of isopentyl glycol,

[0091] 0.3 parts of polyoxyethylene lauryl ether.

[0092] In this embodiment, the polyacrylonitrile-based carbon fiber has a length of 6 mm.

[0093] In this embodiment, the carboxylated carbon nanotubes are carboxylated multi-walled carbon nanotubes.

[0094] In this embodime...

Embodiment 3

[0104] A graphene lead-carbon battery positive electrode grid, the graphene lead-carbon battery positive electrode grid comprising a lead grid blank and graphene lead paste covering the surface of the lead grid blank;

[0105] Described graphene lead paste is made from the raw material that comprises following weight part:

[0106] 780 parts of sponge lead,

[0107] 12 parts of barium sulfate,

[0108] 1.6 parts of graphene,

[0109] 0.78 parts of polyacrylonitrile-based carbon fiber,

[0110] 1.1 parts of carboxylated carbon nanotubes,

[0111] 75 parts of water-based polyurethane,

[0112] 0.82 parts of isocyanate,

[0113] 88 parts of dodecyl alcohol,

[0114] 45 parts of isopentyl glycol,

[0115] 0.25 parts of polyoxyethylene lauryl ether.

[0116] In this embodiment, the polyacrylonitrile-based carbon fiber has a length of 4 mm.

[0117] In this embodiment, the carboxylated carbon nanotubes are carboxylated multi-walled carbon nanotubes.

[0118] In this embodi...

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Abstract

The invention discloses a graphene lead-carbon battery positive electrode grid and a preparation method thereof. The graphene lead-carbon battery positive electrode grid includes a lead grid blank and graphene lead paste covering the surface of the lead grid blank; The graphene lead paste is made of raw materials including the following parts by weight: 750-820 parts of sponge lead, 10-14 parts of barium sulfate, 1.4-1.8 parts of graphene, 0.75-0.85 parts of polyacrylonitrile-based carbon fiber, carboxylated carbon 0.9-1.2 parts of nanotubes, 60-90 parts of water-based polyurethane, 0.7-0.9 parts of isocyanate, 80-95 parts of dodecyl alcohol, 40-50 parts of isoprene glycol, and 0.2-0.3 parts of polyoxyethylene lauryl ether. The positive electrode grid of the graphene lead-carbon battery of the present invention has strong charging acceptance ability and long service life, and is superior to the positive electrode grid of the common lead-carbon battery and obviously superior to the positive plate of the common lead-acid storage battery.

Description

technical field [0001] The invention relates to the field of electrochemical power sources, in particular to a graphene lead-carbon battery positive electrode grid and a preparation method thereof. Background technique [0002] Lead-carbon battery (or lead-carbon battery) is a capacitive lead-acid battery, which is a technology evolved from the traditional lead-acid battery. It adds activated carbon to the negative electrode of the lead-acid battery, which can significantly improve the lead-acid battery. battery life. [0003] Lead-carbon battery is a new type of super battery, which is a combination of lead-acid battery and super capacitor: it not only takes advantage of the advantages of instantaneous large-capacity charging of super capacitors, but also takes advantage of the specific energy of lead-acid batteries, and has a very Good charge and discharge performance - it can be fully charged in 90 minutes (if the lead-acid battery is charged and discharged in this way, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/56H01M4/62H01M4/73H01M4/20B82Y30/00
CPCH01M4/364H01M4/56H01M4/62H01M4/625H01M4/624H01M4/628H01M4/20H01M4/73B82Y30/00H01M2004/028Y02E60/10
Inventor 林思略方腾云洪光耀龚紫吟陈卫东
Owner QUANZHOU KAIYING POWER SUPPLY ELECTRICAL APPLIANCES
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