Application of a current collector in lead-carbon battery or lead-acid battery
A lead-carbon battery and current collector technology, which is applied to battery electrodes, lead-acid batteries, electrode carriers/collectors, etc., can solve problems such as aggravating the sulfation process of batteries, hindering the capacitance performance of activated carbon, and shortening battery life. The effect of increasing power density and energy density, increasing load, and increasing roughness
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Embodiment 1
[0026] In operation, a lead battery grid cut carbon to be treated as the size of 7.2cm X 5.0cm and soaked in a 5% dilute nitric acid solution for 20 minutes, before the grid microstructure such anodizing treatment figure 1 . The soaked grid cleaned with deionized water and connected to a positive power supply, connected to the ordinary power grid dealing with a clean cathode. A current density of 3A / dm 3 Under conditions of anodizing, the electrolyte is aqueous sulfuric acid having a density 1.245g / ml, the anodization time of 20 minutes. After completion of the reaction remove the grid anode, immersed in alkaline hot sugar for 5 minutes. Finally, deionized water to rinse the surface of the carbon electrode to obtain a lead battery grid structure having a three-dimensional microstructure, the surface morphology of the grid as figure 2 . Lead oxide oxidation process to etch away the stereotype of the quality of the quality of pre-etching percentage of 0.16%. The activated carbon...
Embodiment 2
[0028] Under the conditions of Example 1, anodic oxidation time extends only to about 1 hour, the surface morphology of the grid as Figure 5 Lead oxide, can be obtained by etching away the stereotype of the quality of the quality of pre-etching percentage of 0.47%. And the battery assembly, such as test results Image 6 . And the battery may run under the conditions of 18,000 circle. And the negative electrode lead-acid batteries do not contain carbon comparing the test results under the same test conditions ( Figure 4 (About 7200 times)), and the lead-carbon battery life can be a conventional lead-acid battery life reaches 2.5 times.
Embodiment 3
[0030] Under the conditions of Example 1, without changing the other conditions, only the electrolyte density increased to 1.34g / ml, can be obtained by etching away the oxide quality of the lead grid before the etching mass percentage of 1.05%. And the battery assembly, such as test results Figure 7 . And the battery may run under the conditions of 18,000 circle. And the negative electrode lead-acid batteries do not contain carbon comparing the test results under the same test conditions ( Figure 4 (About 7200 times)), and the lead-carbon battery life can be a conventional lead-acid battery life reaches 2.5 times.
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