Power Battery
A power battery and battery technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as hindering the battery charging and discharging process, shortening battery life, and early battery capacity loss, and improving cycle life and high-current discharge performance. , reduce the grain size, improve the utilization rate and the effect of mass-energy ratio
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Embodiment 1
[0013] The invention includes positive and negative plates composed of a grid and an active material, the active material is composed of lead powder and sulfuric acid, the grid is an alloy grid, and the positive grid is composed of the following components in parts by weight: Ag 0.02% , Ti 0.05%, Sn 0.9%, Ca 0.06%, and the balance is Pb; the negative electrode grid is composed of the following components in parts by weight: Ca 0.08%, Al 0.02%, Sn 1.0%, and the balance is Pb.
[0014] The degree of oxidation of the lead powder is 75%, and the apparent density is 0.9g / cm 3 .
[0015] The battery adopts an internal chemical formation process, and the density of sulfuric acid in the chemical electrolyte is 1.23g / cm 3 .
[0016] The upper surface of the pole group of the battery is injected with silica sol, and sio in the silica sol 2 The content is 4%, and the density of silica sol is 1.35 g / cm 3 .
Embodiment 2
[0018] In this embodiment, the positive electrode grid is composed of the following components in parts by weight: Ag 0.03%, Ti 0.06%, Sn 1.5%, Ca 0.08%, and the balance is Pb; the negative electrode grid is composed of the following components in parts by weight: Ca 0.09%, Al 0.05%, Sn 1.6%, and the balance Pb.
[0019] The degree of oxidation of the lead powder is 85%, and the apparent density is 1.25g / cm 3 .
[0020] The battery adopts an internal chemical synthesis process, and the density of sulfuric acid in the chemical electrolyte is 1.26 g / cm 3 .
[0021] The upper surface of the pole group of the battery is injected with silica sol, and sio in the silica sol 2 The content is 6%, and the density of silica sol is 1.45 g / cm 3 .
Embodiment 3
[0023] In this embodiment, the positive grid is composed of the following components in parts by weight: Ag 0.025%, Ti 0.055%, Sn 1.2%, Ca 0.07%7, and the balance is Pb; the negative grid is composed of the following components in parts by weight: Ca 0.085% , Al 0.04%, Sn 1.3%, and the balance is Pb.
[0024] The degree of oxidation of the lead powder is 80%, and the apparent density is 1.1g / cm 3 .
[0025] The battery adopts an internal chemical synthesis process, and the density of sulfuric acid in the chemical electrolyte is 1.24 g / cm 3 .
[0026] The upper surface of the pole group of the battery is injected with silica sol, and sio in the silica sol 2 The content is 5%, and the density of silica sol is 1.40 g / cm 3 .
[0027] The corrosion of the positive plate is an important cause of damage to the lead-acid battery, so it is of great significance to study the corrosion resistance of the experimental grid alloy. Table 1 shows the mass loss test results of the above...
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