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Rapid formation method of power battery acid cycle
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A power battery and formation method technology, which is applied in the direction of lead-acid battery, lead-acid battery construction, sustainable manufacturing/processing, etc., can solve the problems of long formation time, achieve high current density, save power consumption, and save energy consumption Effect
Active Publication Date: 2020-07-17
ZIBO TORCH ENERGY
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At present, the acid cycle formation time is relatively long, generally 50-72h
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Embodiment 1
[0030] The method for rapid formation of power battery acid cycle comprises the following steps:
[0031] Battery: 3-EV-180 electric vehicle battery, the positive plate adopts a tubular structure, and the negative plate adopts a plate structure.
[0033] (1) Connect the battery pack with direct current, insert the acid cycle connector, and open the acid cycle low densitysystem (1.050~1.070) g / cm 3 Soak for 2 hours;
[0034] (2) Turn on the heating system to control the temperature (65±2)℃, and use (10~14)mA / cm in the 2nd to 5th stages 2 Charging, a total of 5h;
[0035] (3) 6~8 stages into acid cycle medium densitysystem (1.140~1.160) g / cm 3 , while controlling the acid cycle temperature at (45±2)°C;
[0036] (4) 6~8 stages use (15~13)mA / cm 2 Charging, in the seventh stage, let stand for 1 hour to remove battery polarization, a total of 14 hours;
[0037] (5) Transfer to the acid cycle high-density system (1.280-1.290) g / cm...
Embodiment 2
[0043] The method for rapid formation of power battery acid cycle comprises the following steps:
[0044] Battery: 6-EV-100 electric vehicle battery, the positive plate adopts a tubular structure, and the negative plate adopts a plate structure.
[0045] Equipment: acid circulation system.
[0046] 1. Connect the battery pack with DC current, insert the acid cycle connector, and open the acid cycle low density system (1.050~1.070) g / cm 3 Soak for 2 hours;
[0047] 2. Turn on the heating system to control the temperature (65±2)℃, and use (10~14)mA / cm in the 2nd to 5th stages 2 Charging, a total of 5h;
[0048] 3. The 6th to 8th stage is transferred to the medium-density system of the acid cycle (1.140 to 1.160) g / cm 3 , while controlling the acid cycle temperature at (45±2)°C;
[0049] 4. (15-13)mA / cm is used in 6-8 stages 2 Charging, in the seventh stage, let stand for 1 hour to remove battery polarization, a total of 14 hours;
[0050] 5. Transfer to the acid cycle hig...
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Abstract
The invention relates to a quick acid-circulation formation method for a power battery, and belongs to the technical field of formation of lead-acid storage batteries. The quick acid-circulation formation method for the power battery disclosed by the invention comprises ten stages; the current density is controlled to 10-15 mA / cm<2>, wherein in the 1-5 stages, the temperature is controlled at 65+ / -2 DEG C; the acid-circulation density is controlled to 1.050-1.070 g / cm<3>; in the 6-9 stages, the temperature is controlled at 45+ / -2 DEG C; in the 6-8 stages, the acid-circulation density is controlled to 1.140-1.160 g / cm<3>; and, in the 9-10 stages, the acid-circulation density is controlled to 1.280-1.290 g / cm<3>. The quick acid-circulation formation method for the power battery disclosed bythe invention is simple and convenient to operate; the production efficiency is increased; loss of water, electricity and thermal energy can be reduced; and the purpose of saving energy and reducing emission is achieved.
Description
technical field [0001] The invention relates to a rapid formation method of power battery acid cycle, which belongs to the technical field of formation of lead-acid batteries. Background technique [0002] There are two ways of formation of lead-acid battery plates: tank formation and battery formation. From the perspective of improving production efficiency and cleaning and environmental protection, the development trend is to adopt the battery formation method. Traditional batteries have long formation time, generally 4 to 5 days, and heavy workload. [0003] The acid cycle formation technology is based on battery formation, which integrates the advantages of using low-density electrolyte for good formation effect in tank formation, and uses the external circulation of electrolyte to solve the problems of insufficient acid in the formation electrolyte and formation temperature. At the same time, this acid cycle method can also circulate the sediment inside the battery to ...
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