阅读说明：本技术 一种铅酸蓄电池化成装置及化成方法 (Formation device and formation method for lead-acid storage battery ) 是由 曹龙泉 许月刚 吴建立 于 2019-11-08 设计创作，主要内容包括：本发明公开了一种铅酸蓄电池化成装置及化成方法。涉及铅酸蓄电池生产技术领域。一种铅酸蓄电池化成装置,包括化成槽,以及用于对铅酸蓄电池内部抽负压的抽真空机构,所述抽真空机构包括设于化成槽底面上方的接头,所述接头的底面设有多根使用时用于连接插在铅酸蓄电池上加酸壶的软管,所述接头的顶面通过管路连接真空泵。通过在化成槽上设置了一套用于对铅酸蓄电池内部抽负压的抽真空机构,通过改变电池化成环境中的压力,改变水的沸点,通过水的蒸发,快速带走电池的热量,让电池可以快速降温。电池化成充电总时间短,大大提升化成效率。并且,电池的低温性能较为稳定,低温容量合格率提高。电池的循环寿命得到了提高。(The invention discloses a lead-acid storage battery formation device and a formation method. Relates to the technical field of lead-acid storage battery production. The utility model provides a lead acid battery ization becomes device, is including changing into the groove to and be used for the evacuation mechanism to the inside negative pressure that takes out of lead acid battery, evacuation mechanism is including locating the joint that changes into groove bottom surface top, the bottom surface that connects is used for connecting the hose of inserting the acidification kettle on lead acid battery when being equipped with many uses, the top surface of joint passes through the tube coupling vacuum pump. Through set up one set of evacuation mechanism that is used for taking out the negative pressure to lead acid battery inside on changing into the groove, through the pressure that changes in the battery formation environment, change the boiling point of water, through the evaporation of water, take away the heat of battery fast, let the battery can rapid cooling. The total charging time for battery formation is short, and the formation efficiency is greatly improved. Moreover, the low-temperature performance of the battery is stable, and the low-temperature capacity qualification rate is improved. The cycle life of the battery is improved.)

1. The utility model provides a lead acid battery ization becomes device, is including changing into the groove, its characterized in that, still including the evacuation mechanism that is used for taking out the negative pressure to lead acid battery inside, evacuation mechanism is including locating the joint that changes into groove bottom surface top, the bottom surface that connects is equipped with many hoses that are used for connecting the acidification kettle of inserting on lead acid battery when using, the top surface of joint passes through the tube coupling vacuum pump.

2. The lead-acid battery formation apparatus of claim 1, wherein the tabs comprise a plurality of spaced-apart tabs, each tab corresponding, in use, to a lead-acid battery.

3. The lead-acid battery formation apparatus according to claim 2, wherein the piping comprises a main pipe connected to the vacuum pump, and branch pipes led from the main pipe and connected to the respective joints.

4. A lead-acid battery formation method, characterized in that formation is carried out by using the lead-acid battery formation device according to any one of claims 1 to 3, and the method comprises the following steps:

(1) inserting an acid adding kettle onto a lead-acid storage battery to be acidified, and quantitatively adding electrolyte into the acid adding kettle;

(2) placing a lead-acid storage battery into the formation tank, and connecting a hose on the bottom surface of the joint with an acid adding kettle;

(3) electrically connecting a positive connecting terminal and a negative connecting terminal of the lead-acid storage battery into charging and discharging equipment;

(4) pumping negative pressure to the lead-acid storage battery to enable the electrolyte to enter the lead-acid storage battery from the acid adding kettle;

(5) and starting formation charging and discharging equipment to carry out formation, starting a vacuum pump to pump negative pressure inside the lead-acid storage battery in the formation process, and keeping the inside of the battery in a certain vacuum state.

5. The formation method of the lead-acid storage battery according to claim 4, wherein the negative pressure pumping time for the lead-acid storage battery in the step (4) is 10-12 min.

6. The method for forming a lead-acid storage battery according to claim 4, wherein in the step (5), when the temperature of the water bath in the forming tank reaches 40 ℃, a vacuum pump is started to pump negative pressure.

7. The formation method of the lead-acid storage battery according to claim 4, wherein negative pressure is pumped in the lead-acid storage battery in the step (5), and the control range of the internal vacuum degree is 35-50 mbar.

8. The lead-acid battery formation method of claim 4, wherein the formation process in step (5) comprises:

(a) at 0.1-0.12C₂Charging for 0.45-0.5 h by using the current A;

(b) at 0.5-0.6C₂Charging for 1.8-2 h by using the current A;

(c) at 0.9-1C₂Charging for 6-6.5 h by using the current A;

(d) at 0.4-0.5C₂Charging for 0.9-1 h by using the current A;

(e) 0.2 to 0.3C₂Charging for 0.9-1 h by using the A current.

Technical Field

The invention relates to the technical field of production of lead-acid storage batteries, in particular to a device and a method for forming a lead-acid storage battery.

Background

At present, the power type lead-acid storage battery adopts an internal formation charging process, the charging time is long and exceeds 48 hours, the temperature of the battery in the charging process is high, the battery is easy to bulge, the charging current must be strictly controlled within a certain range, the battery must be placed in a water bath all the time in the formation process, the water is circulated ceaselessly, the temperature of the battery is reduced, the precipitation of an additive in a negative plate of the battery is accelerated due to the high temperature of the battery, and the low-temperature performance and the service life of the battery are influenced.

The invention with the publication number of CN105186055A discloses an internal formation charging method of a lead-acid storage battery, which sequentially comprises the following steps: step (a): charging for 0.2-0.5 hour by 0.03-0.06-2C 2; charging for 0.2-0.5 hour at 0.12-0.16C 2-2; step (b): pole-lowering circulating charge and discharge: after four charging and discharging cycles, switching to the step (c); step (c): charging for 7-9 hours at 0.23-0.27C 2-2; charging for 1-3 hours at 0.18C 2-0.22C 2; charging for 5-7 hours by 0.08C 2-0.12C 2; and completing internalization charging. In the technical scheme, the charging is carried out by using a small charging current, so that the temperature is overhigh in the formation process, but the charging of a small battery ensures that the time of the whole formation process is long.

The invention with publication number CN103384021A discloses a storage battery container formation charging process, which comprises the following steps: a. charging for 4-6 hours by using 0.3C 2A-0.4C 2A, and standing for 1 min-6 hours; b. charging for 4-6 hours by using 0.2C 2A-0.3C 2A, and standing for 1 min-6 hours; c. charging for 4-6 hours by using 0.2C 2A-0.3C 2A, and standing for 1 min-6 hours; d. charging for 4-6 hours by using 0.1C 2A-0.2C 2A, and standing for 1 min-6 hours; e. discharging for 2 hours and detecting the charging degree of the storage battery; f. charging for 4-8 hours by using 0.2C 2A; g. charging with 0.1C 2A for 3-4 hours. In the technical scheme, partial steps are charged and then are stood to replace 2 times of discharge in the charging process in the traditional charging process, so that dilute sulfuric acid in electrolyte has enough time to permeate into the pole plates, the consistency of each storage battery is ensured, the capacity and the service life of each storage battery completely reach the level of the traditional process, the standing replaces the discharge of the traditional process, the consistency of the storage batteries is improved, the internalized formation charging process of the storage batteries shortens the charging time and simultaneously saves the discharge in the traditional process, the process is simple, the operation is convenient, the energy consumption is saved, and the production cost of the storage batteries is reduced. In the technical scheme, the discharging process is replaced by standing for a period of time between two times of charging, so that the problem of temperature rise in the storage battery formation process is solved, and the formation time is long.

Disclosure of Invention

The invention provides a lead-acid storage battery formation device and a formation method aiming at the problems of long formation time and low production efficiency in the prior art.

The invention firstly provides a lead-acid storage battery formation device, which comprises a formation tank and a vacuumizing mechanism for vacuumizing the interior of a lead-acid storage battery, wherein the vacuumizing mechanism comprises a connector arranged above the bottom surface of the formation tank, the bottom surface of the connector is provided with a plurality of hoses which are used for connecting an acid adding kettle inserted on the lead-acid storage battery when in use, and the top surface of the connector is connected with a vacuum pump through a pipeline. The connector comprises a plurality of connectors which are distributed at intervals, and each connector corresponds to one lead-acid storage battery when in use. The pipeline comprises a main pipe connected with the vacuum pump and branch pipes led out from the main pipe and respectively connected with the joints.

The invention also provides a formation method of the lead-acid storage battery, which is used for formation by using the formation device of the lead-acid storage battery and comprises the following steps:

(1) inserting an acid adding kettle onto a lead-acid storage battery to be acidified, and quantitatively adding electrolyte into the acid adding kettle;

(2) placing a lead-acid storage battery into the formation tank, and connecting a hose on the bottom surface of the joint with an acid adding kettle;

(3) electrically connecting a positive connecting terminal and a negative connecting terminal of the lead-acid storage battery into charging and discharging equipment;

(4) pumping negative pressure to the lead-acid storage battery to enable the electrolyte to enter the lead-acid storage battery from the acid adding kettle;

(5) and starting formation charging and discharging equipment to carry out formation, starting a vacuum pump to pump negative pressure inside the lead-acid storage battery in the formation process, and keeping the inside of the battery in a certain vacuum state.

Preferably, the time for pumping negative pressure to the lead-acid storage battery in the step (4) is 10-12 min.

Preferably, when the temperature of the water bath in the formation tank in the step (5) reaches 40 ℃, a vacuum pump is started to pump negative pressure.

Preferably, in the step (5), negative pressure is pumped into the lead-acid storage battery, and the control range of the internal vacuum degree is 35-50 mbar.

Preferably, the formation process in the step (5) comprises:

(a) at 0.1-0.12C₂Charging for 0.45-0.5 h by using the current A;

(b) at 0.5-0.6C₂Charging for 1.8-2 h by using the current A;

(c) at 0.9-1C₂Charging for 6-6.5 h by using the current A;

(d) at 0.4-0.5C₂Charging for 0.9-1 h by using the current A;

(e) 0.2 to 0.3C₂Charging for 0.9-1 h by using the A current.

According to the formation device of the lead-acid storage battery, the set of vacuumizing mechanism for vacuumizing the interior of the lead-acid storage battery is arranged on the formation groove, the formation of the battery is carried out in a vacuum environment, the boiling point of water is changed by changing the pressure in the formation environment of the battery, the heat of the battery is quickly taken away by the evaporation of the water, and the battery can be quickly cooled; the charging current of the battery can be increased from 0.5C to 1C, the formation time is reduced, and the production efficiency is improved; the starting of the battery charging process is changed into a charging process, the vacuum pump starting temperature is set to be 40 ℃, when the battery temperature reaches 40 ℃, the vacuum pump is started to vacuumize the battery, so that water in the battery is quickly evaporated, heat is brought into the acid kettle, and the heat is taken away through the vacuum pump, so that the purpose of reducing the battery temperature is achieved.

The total charging time for battery formation is short, and the formation efficiency is greatly improved. Moreover, the low-temperature performance of the battery is stable, and the low-temperature capacity qualification rate is improved. The cycle life of the battery is improved.

Drawings

Fig. 1 is a schematic perspective view of the chemical conversion apparatus of the present invention.

Fig. 2 is a schematic view of a partial cross-sectional structure of the formation apparatus of the present invention.

FIG. 3 is a schematic diagram of the fitting structure of the connector and the lead-acid battery with the acid adding pot inserted.

FIG. 4 shows the cycle life test results of lead-acid batteries of type 6-DZF-20.

Detailed Description