Electrode active material for lead-acid storage battery

A technology for electrode active materials and lead-acid batteries, applied in lead-acid batteries, battery electrodes, circuits, etc., can solve the problem of active material utilization, charging efficiency, large current discharge capacity is not ideal, easy to be consumed by oxidation, and quality products are rare and other issues, to achieve the effect of enhancing ion conductivity, enhancing electron conductivity, and enhancing ion conductivity

Inactive Publication Date: 2017-06-20
杨春晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, by adding some common conductive agents, dispersants, expansion agents, etc. to the active material, 30%-60% utilization rate of positive and negative active materials and better charging efficiency can be obtained, and it can also make sulfate , softening and falling off of positive active material, early capacity loss and other problems have been more or less controlled or alleviated, but there are still considerable room for improvement and problems, such as active material utiliz...

Method used

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  • Electrode active material for lead-acid storage battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The lead-acid battery electrode active material of the present embodiment is made of ball-milled lead powder, titanium diboride (TiB 2 ) fibers are mixed and made, and the specific formula is shown in Table 1.

[0026] The lead-acid storage battery active material formula of table 1 embodiment 1

[0027] Component relative mass ratio The average particle size length Ball mill lead powder 1 1000μm TiB 2 fiber

[0028] Preparation method: Weigh 1 mass part of ball-milled lead powder and 100% mass part of TiB 2 Fibers (the average diameter of the fibers is 1000 μm, and the average length is 10 cm), poured into a stirring container, and the dry powder was stirred for 10 minutes. After mixing evenly, the active material of the lead-acid battery in a dry powder state was obtained. Applying the active material to the positive and negative electrodes of the lead-acid battery can increase the utilization rate of the active material of the positiv...

Embodiment 2

[0030] The lead-acid battery electrode active material of this embodiment is prepared by mixing ball-milled lead powder and titanium diboride (TiB2) powder. The specific formula is shown in Table 2.

[0031] The lead-acid storage battery active material formula of table 2 embodiment 2

[0032] Component relative mass ratio The average particle size Ball mill lead powder 1 300μm TiB 2 powder

[0033] Preparation method: weigh 1 mass part of ball-milled lead powder and 50 mass parts of TiB 2 The powder is poured into a stirring container, and the dry powder is stirred for 15 minutes. After mixing evenly, the active material of a lead-acid battery in a dry powder state is obtained. Applying the active material to the positive electrode of the lead-acid battery can increase the utilization rate of the active material of the positive electrode of the lead-acid battery by 30-60%, the conductivity of the positive electrode by 30-50%, and the porosity of th...

Embodiment 3

[0035] The lead-acid battery electrode active material of the present embodiment is made of ball-milled lead powder, titanium diboride (TiB 2 ) powder and TiN are mixed and prepared, and the specific formula is shown in Table 3.

[0036] The lead-acid storage battery active material formula of table 3 embodiment 3

[0037] Component relative mass ratio The average particle size Ball mill lead powder 1 50μm TiB 2 powder

[0038] Preparation method: weigh 1 mass part of ball-milled lead powder, 12 mass parts of TiB 2 The powder and 1% by mass of TiN are poured into a stirring container, the dry powder is stirred for 15 minutes, and after uniform mixing, the active material of a lead-acid battery in a dry powder state is obtained. Applying the active material to the positive electrode of the lead-acid battery can increase the utilization rate of the active material of the positive electrode of the lead-acid battery by 40-60%, the conductivity of the p...

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Abstract

The invention discloses an electrode active material for a lead-acid storage battery. The electrode active material comprises lead powder and a non-metallic titanium compound; the lead powder comprises one or more kinds of metal lead powder, ball-milling lead powder, Barton lead powder, Pb<2>O powder, PbO powder, Pb<2>O<3> powder, Pb<3>O<4> powder and PbO<2> powder; and the non-metallic titanium compound comprises one or more kinds of titanium sulfide, titanium nitride, titanium boride, titanium carbide, titanium hydride, titanium hydroxide, titanium silicide, a symbiotic blend of the abovementioned compounds on an atomic micro level or atomic cluster level, and doped compounds formed by doping the abovementioned compounds with one or more kinds of F, Sb, Sn, Ca, Bi, Co, Ca, Al, Mg, N, P, O and C. By virtue of the electrode active material for the lead-acid storage battery with an improved formula, the specific power, specific energy, charging-discharging efficiency, cycle life, low-temperature performance and the like of the lead-acid storage battery can be obviously improved.

Description

technical field [0001] The invention relates to the field of lead-acid batteries, in particular to electrode active materials of lead-acid batteries. Background technique [0002] The active material of the lead-acid battery is closely related to the performance of the lead-acid battery, which affects or even determines the specific power, specific energy, high-current discharge capacity, charging efficiency, and cycle life of the lead-acid battery. The preparation and application of the active material of the current lead-acid battery have enabled the lead-acid battery to obtain relatively practical and good performance. Generally, by adding some common conductive agents, dispersants, expansion agents, etc. to the active material, 30%-60% utilization rate of positive and negative active materials and better charging efficiency can be obtained, and it can also make sulfate , softening and falling off of positive active material, early capacity loss and other problems have b...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/57H01M4/62H01M10/06
CPCH01M4/364H01M4/57H01M4/624H01M4/628H01M10/06Y02E60/10
Inventor 杨春晓
Owner 杨春晓
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