Production process of positive pole

Abstract

The production process comprises the following steps: S1, carrying out feeding detection on an alloy aluminum plate, and carrying out blank opening treatment on the detected alloy aluminum plate by utilizing a punching machine; s2, the blank is ground through a grinding machine; s3, cleaning the blank in a water tank for 20-30 seconds by using a cleaning machine; S4, starting a centrifugal air dryer to carry out centrifugation and dehydration treatment on the cleaned blank; s5, a punch press is started to conduct punch forming on the air-dried blank; s6, the grinding machine is used again for forming and grinding, and the grinding cleaning agent is prepared from 1 KG of cleaning agent and 100 KG of water according to the ratio; the speed is 800 to 900 r / min; s7, further cleaning is conducted in an ultrasonic cleaning machine, and the frequency of an ultrasonic generator is F28.5-30; s8, normal-temperature water flows in a clear water tank to be washed for 20-30 seconds; s9, air-drying the cleaned positive pole by using an air heater; s10, finally measuring the resistance of the positive pole through a resistance tester; the method is simple, effectively solves the problem of workmanship flaws of the positive pole, and can meet the requirements of production and processing.

Description

Technical Field

[0001] The invention relates to the technical field of positive poles, and in particular to a production process of positive poles. Background Art

[0002] The pole is widely used in batteries. The pole is the component that connects the inside and outside of the battery, enabling the battery to realize the function of charging and discharging. The positive pole is usually made of aluminum, which has high conductivity and chemical stability.

[0003] Most of the current positive poles have some defects in their workmanship, such as burrs on the edge of the pole less than 0.1mm, the surface is not clean, smooth and flat, or the surface of the product is stained with metal chips that will fall off. Summary of the invention

[0004] Based on this, it is necessary to provide a production process for positive electrode poles to address the problem of defects in the positive electrode poles mentioned above.

[0005] A production process for a positive electrode column comprises the following steps:

[0006] S1: Performing feeding inspection on the alloy aluminum plate, and using a punch press to perform blanking processing on the alloy aluminum plate after inspection;

[0007] S2: Grind the blank using a grinder, with the ratio of grinding cleaning agent being 1 kg cleaning agent / 100 kg water;

[0008] S3: Use a cleaning machine to clean in a sink for 20-30 seconds;

[0009] S4: Start the centrifugal air dryer to centrifuge and dehydrate the cleaned embryo material;

[0010] S5: Start the punch press to punch and form the air-dried blank;

[0011] S6: Use the grinder to perform shaping grinding again, the ratio of grinding cleaning agent is 1 kg cleaning agent / 100 kg water; the speed is 800-900 r / min;

[0012] S7: Then further cleaning is performed in an ultrasonic cleaning machine, in which the ratio of water to cleaning agent is 5 kg cleaning agent / 100 kg water, and the frequency of the ultrasonic generator is F28.5-30;

[0013] S8: Run normal temperature water through a clean water tank for 20-30 seconds;

[0014] S9: using a hot air blower to air dry the cleaned positive electrode column;

[0015] S10: Finally, measure the positive electrode resistance using a resistance tester.

[0016] In one embodiment, in step S2, the cleaning time of the abrasive cleaning agent is 7-10 minutes.

[0017] In one embodiment, in step S4, the centrifugal speed of the centrifugal air dryer is 40-50 r / min, and the dehydration time is 8-10 minutes.

[0018] In one embodiment, in step S6, the cleaning time of the grinding cleaning agent in the forming grinding is 18-20 minutes.

[0019] In one embodiment, in step S7, the temperature of the ultrasonic cleaning machine is 60-70 degrees, and the immersion time is 3-5 minutes.

[0020] In one embodiment, in step S9, the hot air blower operates at a rate of 15-20 r / min, and the air drying time is 15-20 minutes.

[0021] In one embodiment, in step 10, the resistance of the positive electrode post is less than 0.015 mohm.

[0022] The above-mentioned production process of the positive electrode pole is simple in method and easy to operate. It not only effectively solves the problems of the positive electrode pole's surface being not clean, smooth and flat, the edge burrs being too large and the presence of metal chips on the product surface, but also improves the product quality and saves costs, and can meet the needs of production and processing. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0024] As used herein, the term "prepared from" is synonymous with "comprising." As used herein, the terms "comprising," "including," "having," "containing," or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises the listed elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

[0025] When amount, concentration or other value or parameter is expressed as range, preferred range or a series of upper preferred value and lower preferred value limit range, this should be understood as specifically disclosing all ranges formed by any pairing of any range upper limit or preferred value and any range lower limit or preferred value, regardless of whether the range is disclosed separately. For example, when disclosing range "1 to 5", described range should be interpreted as including range "1 to 4", "1 to 3", "1 to 2", "1 to 2 and 4 to 5", "1 to 3 and 5" etc. When numerical range is described in this article, unless otherwise stated, the range is intended to include its end value and all integers and fractions within the range.

[0026] In addition, the indefinite articles "a" and "an" before the elements or components of the present invention have no restrictions on the quantity requirements (i.e. the number of occurrences) of the elements or components. Therefore, "a" or "an" should be interpreted as including one or at least one, and the elements or components in the singular form also include the plural form, unless the number is obviously intended to be in the singular form.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] A production process for a positive electrode column comprises the following steps:

[0029] S1: Performing feeding inspection on the alloy aluminum plate, and using a punch press to perform blanking processing on the alloy aluminum plate after inspection;

[0030] S2: Grind the blank with a grinder, the ratio of grinding cleaning agent is 1 kg cleaning agent / 100 kg water, and the cleaning time is 7-10 minutes;

[0031] S3: Use a cleaning machine to clean in a sink for 20-30 seconds;

[0032] S4: starting a centrifugal air dryer to centrifuge and dehydrate the cleaned blank, the centrifugal speed of the centrifugal air dryer is 40-50r / min, and the dehydration time is 8-10 minutes;

[0033] S5: Start the punch press to punch and form the air-dried blank;

[0034] S6: using the grinder to perform shaping grinding again, the ratio of the grinding cleaning agent is 1 kg cleaning agent / 100 kg water; the speed is 800-900 r / min, and the cleaning time of the grinding cleaning agent in the shaping grinding is 18-20 minutes;

[0035] S7: Then further cleaning is carried out in an ultrasonic cleaning machine, the ratio of water to cleaning agent in the ultrasonic cleaning machine is 5KG cleaning agent / 100KG water, the frequency of the ultrasonic generator is F28.5-30, the temperature of the ultrasonic cleaning machine is 60-70 degrees, and the immersion time is 3-5 minutes;

[0036] S8: Run normal temperature water through a clean water tank for 20-30 seconds;

[0037] S9: using a hot air blower to air-dry the cleaned positive electrode column, the operating rate of the hot air blower is 15-20r / min, and the air-drying time is 15-20 minutes;

[0038] S10: Finally, the resistance of the positive electrode is measured by a resistance tester. The resistance of the positive electrode is less than 0.015mohm.

[0039] It should be noted that before production, the alloy aluminum plate is visually inspected to check whether the surface of the alloy aluminum plate has scratches, dents, oil stains, rust and other defects that affect the processing quality. Then, the size is measured, and a caliper or other measuring tools are used to confirm whether the size of the alloy aluminum plate meets the processing requirements. In step S1, according to the size and shape requirements of the alloy aluminum plate, a suitable punching die is selected and installed on the punch press, and the pressure, speed, stroke and other parameters of the punch press are adjusted to ensure that it can meet the stamping requirements of the alloy aluminum plate. The tested alloy aluminum plate is placed at the designated position of the punch press, the punch press is started, and the stamping operation is performed to stamp the alloy aluminum plate into the required blank shape. After the stamping is completed, the blank is inspected to confirm whether the size and shape meet the requirements and whether the surface is damaged. In step 2, ensure that the grinder is in good working condition, check and confirm that all safety measures are in place, and select suitable grinding tools and according to the material and processing requirements of the blank. Grinding media, according to the given ratio (1KG cleaning agent / 100KG water), accurately measure the required cleaning agent and water, add the required amount of water to the container of the grinder, then slowly add the cleaning agent, and stir evenly to ensure that the cleaning agent is completely dissolved. During the grinding process, closely monitor the grinding of the blank to ensure that the grinding is uniform and the expected surface quality is achieved. If necessary, the blank can be manually turned to ensure that each surface is evenly ground; in step S3, after the grinding is completed, the blank is thoroughly cleaned with clean water to remove the residual grinding media and cleaning agent. In step S4, after cleaning, the centrifugal air dryer can be started to centrifuge and dehydrate the cleaned blank. The centrifugal rate of the centrifugal air dryer is 40-50r / min, and the dehydration time is 8-10 minutes; in step S5, through the pole stamping, the shape and size of the positive and negative electrode materials of the lithium battery can be accurately controlled to ensure the performance and stability of the battery. At the same time, the stamping process can also improve the energy density and cycle life of the battery, and improve the efficiency and reliability of the battery. In steps S6, S7 and S9, after grinding, cleaning, ultrasonic cleaning and hot air drying, the appearance surface of the positive electrode is clean, smooth and flat, the scratch depth does not exceed 0.2mm, the length does not exceed 5mm and there are no more than 5 scratches; the edge burrs are less than 0.1mm; there is no metal shavings that fall off the surface of the product.

[0040] Example 1

[0041] A production process for a positive electrode column comprises the following steps:

[0042] S1: Performing feeding inspection on the alloy aluminum plate, and using a punch press to perform blanking processing on the alloy aluminum plate after inspection;

[0043] S2: Grind the blank with a grinder, the ratio of grinding cleaning agent is 1 kg cleaning agent / 100 kg water, and the cleaning time is 7 minutes;

[0044] S3: Cleaning in a sink for 20 minutes using a cleaning machine;

[0045] S4: starting a centrifugal air dryer to centrifuge and dehydrate the cleaned blank, the centrifugal speed of the centrifugal air dryer is 40r / min, and the dehydration time is 8 minutes;

[0046] S5: Start the punch press to punch and form the air-dried blank;

[0047] S6: using the grinder to perform shaping grinding again, the ratio of the grinding cleaning agent is 1 kg cleaning agent / 100 kg water; the speed is 800 r / min, and the cleaning time of the grinding cleaning agent in the shaping grinding is 18 minutes;

[0048] S7: Then further cleaning is carried out in an ultrasonic cleaning machine, the ratio of water to cleaning agent in the ultrasonic cleaning machine is 5KG cleaning agent / 100KG water, the frequency of the ultrasonic generator is F28.5, the temperature of the ultrasonic cleaning machine is 60 degrees, and the immersion time is 3 minutes;

[0049] S8: Run room temperature water through a clean water tank for 20 seconds;

[0050] S9: Use a hot air blower to air-dry the cleaned positive electrode column, the operating rate of the hot air blower is 15r / min, and the air-drying time is 15 minutes.

[0051] S10: Finally, the resistance of the positive electrode is measured by a resistance tester. The resistance of the positive electrode is less than 0.015mohm.

[0052] Example 2

[0053] A production process for a positive electrode column comprises the following steps:

[0054] S1: Performing feeding inspection on the alloy aluminum plate, and using a punch press to perform blanking processing on the alloy aluminum plate after inspection;

[0055] S2: Grind the blank with a grinder, the ratio of grinding cleaning agent is 1 kg cleaning agent / 100 kg water, and the cleaning time is 10 minutes;

[0056] S3: Use a cleaning machine to clean in a sink for 30 seconds;

[0057] S4: starting a centrifugal air dryer to centrifuge and dehydrate the cleaned blank, the centrifugal speed of the centrifugal air dryer is 50r / min, and the dehydration time is 10 minutes;

[0058] S5: Start the punch press to punch and form the air-dried blank;

[0059] S6: using the grinder to perform shaping grinding again, the ratio of the grinding cleaning agent is 1 kg cleaning agent / 100 kg water; the speed is 900 r / min, and the cleaning time of the grinding cleaning agent in the shaping grinding is 20 minutes;

[0060] S7: Then further cleaning is performed in an ultrasonic cleaning machine, in which the ratio of water to cleaning agent is 5 kg cleaning agent / 100 kg water, the frequency of the ultrasonic generator is F30, the temperature of the ultrasonic cleaning machine is 70 degrees, and the immersion time is 5 minutes;

[0061] S8: Run room temperature water through a clean water tank for 30 seconds;

[0062] S9: Use a hot air blower to air-dry the cleaned positive electrode column, the operating rate of the hot air blower is 20r / min, and the air-drying time is 20 minutes.

[0063] S10: Finally, the resistance of the positive electrode is measured by a resistance tester. The resistance of the positive electrode is less than 0.015mohm.

[0064] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A production process for a positive electrode column, characterized in that: The following steps are involved: S1: Performing feeding inspection on the alloy aluminum plate, and using a punch press to perform blanking processing on the alloy aluminum plate after inspection; S2: Grind the blank using a grinder, with the ratio of grinding cleaning agent being 1 kg cleaning agent / 100 kg water; S3: Use a cleaning machine to clean in a sink for 20-30 seconds. S4: Start the centrifugal air dryer to centrifuge and dehydrate the cleaned embryo material; S5: Start the punch press to punch and form the air-dried blank; S6: Use the grinder to perform shaping grinding again, the ratio of grinding cleaning agent is 1 kg cleaning agent / 100 kg water; the speed is 800-900 r / min; S7: Then further cleaning is performed in an ultrasonic cleaning machine, in which the ratio of water to cleaning agent is 5 kg cleaning agent / 100 kg water, and the frequency of the ultrasonic generator is F28.5-30; S8: Run normal temperature water through a clean water tank for 20-30 seconds; S9: using a hot air blower to air dry the cleaned positive electrode column; S10: Finally, measure the positive electrode resistance using a resistance tester.

2. The production process of a positive electrode column according to claim 1, characterized in that: In step S2, the cleaning time of the abrasive cleaning agent is 7-10 minutes.

3. The production process of a positive electrode column according to claim 1, characterized in that: In step S4, the centrifugal speed of the centrifugal air dryer is 40-50 r / min, and the dehydration time is 8-10 minutes.

4. The production process of a positive electrode column according to claim 1, characterized in that: In step S6, the cleaning time of the grinding cleaning agent in the molding grinding is 18-20 minutes.

5. The production process of a positive electrode column according to claim 1, characterized in that: In step S7, the temperature of the ultrasonic cleaning machine is 60-70 degrees, and the immersion time is 3-5 minutes.

6. The production process of a positive electrode column according to claim 1, characterized in that: In step S9, the operating speed of the hot air blower is 15-20 r / min, and the air drying time is 15-20 minutes.

7. The production process of a positive electrode column according to claim 1, characterized in that: In step S10, the resistance of the positive electrode post is less than 0.015 mohm.