Quantum lead-acid accumulator

Abstract

The invention relates to a lead-acid accumulator, in particular relating to a quantum lead-acid accumulator which comprises a cathode plate, an anode plate and an electrolyte, wherein the cathode plate comprises a lead plaster and a grid; the lead plaster contains 4-6% quantized carbon suspension, 0.01-0.06% of acrylic short fiber, 0.1-0.3% of lignin, 0.15-0.45% of acetylene carbon black, 0.4-0.7% of barium sulfate, 5-8% of dilute sulphuric acid and 4-5% of purified water based on the proportion by weight of lead powder; and the grid material of the anode and cathode plates adopts a Pb-Ca-Sn-Al quaternary alloy. In the quantum lead-acid accumulator provided by the invention, the quantized carbon suspension is added in the formula of the cathode plate containing the lead plaster; the particle size of the carbon particles in the suspension is uniformly less than or equal to 3nm; and in the coordinated application of the carbon particles, active substances and additives, the porosity of the active substances is improved, a cathode absorption technique is developed, the utilization rate of the active substances is enhanced, and the deep discharge performance of the accumulator is improved. A test indicates that the quantum lead-acid accumulator provided by the invention has the advantages of high quality-energy ratio, good charge-discharge performance, convenience in maintenance, long service life and suitability for being used in the severe environments such as vibration and impact, low temperature and the like.

Description

technical field [0001] The invention relates to a lead-acid battery, in particular to a quantum lead-acid battery technology. Background technique [0002] At present, lead-acid batteries are widely used, among which valve-regulated sealed structure lead-acid batteries have entered a stage of rapid development. However, the existing lead-acid batteries have high quality and low specific energy. The actual specific energy is generally only 30-40wh / kg, and the utilization rate of the plates is less than 40%. The waste of lead metal resources is serious. In addition, problems such as small discharge capacity and low service life of valve-regulated sealed lead-acid batteries have also attracted much attention. [0003] In order to solve the above problems, nano lead-acid batteries using nano-carbon particles as positive plates and electrolyte additives have recently appeared. The raw material components and ratios in the batteries are not reasonable enough, and the characterist...

AI Technical Summary

Problems solved by technology

However, the existing lead-acid battery has a large mass and low specific energy. The actual specific energy is generally only 30-40wh / kg, and the utilization rate of its plates is less than 40%. The waste of lead metal resources is serious.

In addition, problems such as small discharge capacity and low service life of valve-regulated sealed lead-acid batteries have also attracted much attention

[0003] In order to solve the above problems, nano-carbon lead-acid batteries have recently appeared as positive plates and electrolyte additives. The raw material components and ratios in the batteries are not reasonable enough, and the characteristics of nano-materials are not outstanding.

Therefore, the chemical activity is not obvious, and the effect of improving the specific energy and prolonging the service life is very small.

Moreover, during the use of the battery, the expansion of the positive plate is intensified, the active material falls off, and the service life of the battery is rapidly reduced [such as Chinese patent (200510063570.6)].

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