Lead-carbon colloid storage battery

A colloidal battery and lead-carbon technology, applied in lead-acid batteries, battery electrodes, electrode carriers/collectors, etc., to slow down the formation of interface resistance layers, prevent expansion, and reduce accumulation

Pending Publication Date: 2020-02-21
HUBEI RUNYANG NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The failure of traditional lead-acid batteries is nothing more than the early capacity loss, the softening and falling off of the positive electrode paste and the end of life caused by the sulfation of the negative electrode paste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) At 25°C, the graphene conductive paste was subjected to back-type vibration for 30 minutes on a vibration machine with a vibration frequency of 200rmp and an amplitude of 25.0mm to remove the upper layer solution, and then sprayed on the positive plate by 0.04MPa high-pressure spraying The graphene conductive paste is evenly sprayed on the front and back sides of the grid and the negative grid, so that the frames and horizontal and vertical ribs of the positive grid and the negative grid are covered with graphene layers. Dry the kiln for 30 seconds to form a graphene coating.

[0036] (2) The positive lead paste has the following components by mass: lead powder 95Kg, dilute sulfuric acid 11Kg, red lead 4Kg, antimony trioxide 0.2Kg, stannous sulfate 0.2Kg, graphene conductive paste 0.05Kg, short fiber 0.1 Kg, 9Kg of pure water; the positive electrode paste is mixed according to the above steps, wherein the apparent density of the positive electrode paste is 4.40g / cm ...

Embodiment 2

[0041] (1) At 25°C, the graphene conductive paste was subjected to back-type vibration for 30 minutes on a vibration machine with a vibration frequency of 200rmp and an amplitude of 25.0mm to remove the upper layer solution, and then sprayed on the positive plate by 0.04Mpa high-pressure spraying The graphene conductive paste is evenly sprayed on the front and back sides of the grid and the negative grid, so that the frames and horizontal and vertical ribs of the positive grid and the negative grid are covered with graphene layers. Dry the kiln for 30 seconds to form a graphene coating.

[0042] (2) The positive lead paste has the following components by mass: 95Kg of lead powder, 11Kg of dilute sulfuric acid, 4Kg of red lead, 0.2Kg of antimony trioxide, 0.2Kg of stannous sulfate, 0.2Kg of graphene conductive paste, and 0.1 kg of short fiber Kg, 9Kg of pure water; the positive electrode paste is mixed according to the above steps, wherein the apparent density of the positive e...

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Abstract

The invention discloses a lead-carbon colloid storage battery, and the storage battery comprises positive lead paste, negative lead paste, a positive grid and a negative grid; the positive lead pastecomprises the following components: lead powder, dilute sulfuric acid, red lead, antimonous oxide, stannous sulfate, graphene conductive slurry, short fibers and pure water; the negative lead paste comprises the following components: lead powder, dilute sulfuric acid, barium sulfate, an organic expanding agent, lignin, treated graphene conductive paste, nano activated carbon, a silane coupling agent, short fibers and pure water; graphene conductive slurry is sprayed on the front and back surfaces of the positive and negative grids respectively, so that the positive and negative grid frames andthe transverse and vertical ribs are coated with graphene layers, and high-temperature curing is performed to form a graphene coating. According to the invention, the plated graphene grid has a highbinding force with the lead plaster, the lead plaster can be effectively prevented from falling off, the prepared graphene-containing positive and negative lead plaster has higher conductivity, and the charging acceptance capability and high-current charging and discharging capability of the storage battery are improved; meanwhile, sulfation of the negative electrode can be effectively inhibited,and the cycle life of the storage battery is prolonged.

Description

technical field [0001] The invention belongs to the technical field of lead-acid battery production, and in particular relates to a lead-carbon gel battery. Background technique [0002] At present, the requirements for battery life in various occasions in society are constantly increasing, and customers' quality assurance requirements for suppliers are also getting longer and longer. The failure of traditional lead-acid batteries is nothing more than the early capacity loss, the softening and falling off of the positive electrode paste and the end of life caused by the sulfation of the negative electrode paste. [0003] Early capacity loss refers to the impact of the interface between the positive grid and the active material, which is manifested as a sharp drop in the capacity of the battery within the first 10-15 cycles, which is caused by the formation of a non-conductive layer at the interface between the positive grid and the active material , the non-conductive and l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/06H01M4/66H01M4/68H01M4/62
CPCH01M10/06H01M4/663H01M4/667H01M4/68H01M4/625H01M4/628Y02E60/10
Inventor 徐进赵凤翔李旭罗旭
Owner HUBEI RUNYANG NEW ENERGY
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