CN109167114B - Method for forming four large-capacity square batteries in series connection - Google Patents
Method for forming four large-capacity square batteries in series connection Download PDFInfo
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- CN109167114B CN109167114B CN201810987687.0A CN201810987687A CN109167114B CN 109167114 B CN109167114 B CN 109167114B CN 201810987687 A CN201810987687 A CN 201810987687A CN 109167114 B CN109167114 B CN 109167114B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a formation technology for connecting four large-capacity square batteries in series, which specifically comprises the following steps: step one, equipment preparation: prepare a top and paste and have the rubber layer, inside is equipped with electric heating element and runs through the dull and stereotyped that has the exhaust hole as processing platform, then prepare a battery and become the machine, an internally mounted has hemispherical transparent sealing cover of gas pressure sensor and temperature sensor, a vacuum pumping equipment, an blast pipe, a wire and the multiunit wire group that is connected with the socket, each wire group all includes a wire, three ordinary wires, eight alligator clips that are connected with the plug. The invention simplifies the wiring mode of the battery and the battery formation machine, improves the formation efficiency, simplifies the formation process of the battery, saves the formation time and the labor cost and improves various indexes of the square battery with large capacity.
Description
Technical Field
The invention relates to the technical field of formation of high-capacity batteries, in particular to a formation method for connecting four large-capacity square batteries in series.
Background
The battery formation is a process of activating a manufactured battery through a certain charging and discharging process, and a conventional formation process generates gases in the formation process, and the generated gases need to be removed, otherwise, the performance of the battery and the cycle life of the battery are affected.
When a large-capacity square battery is formed by the battery formation process in the prior art, the generated gas cannot be effectively and conveniently removed, the integral formation process is complex, the production and manufacturing cost of the battery is increased, and the industrial application of the square large-capacity battery is greatly restricted.
Therefore, it is necessary to develop a method for forming four large-capacity square batteries in series to solve the above problems.
Disclosure of Invention
The invention aims to provide a method for forming four large-capacity square batteries in series, which simplifies the wiring mode of the batteries and a battery forming machine, improves the forming efficiency, simplifies the forming process of the batteries, saves the forming time and the labor cost, and improves various indexes of the large-capacity square batteries so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for forming four large-capacity square batteries in series connection specifically comprises the following steps:
step one, equipment preparation: preparing a flat plate with a rubber layer adhered to the top, an electric heating element arranged inside and an exhaust hole penetrating through the flat plate as a processing platform, and then preparing a battery formation machine, a hemispherical transparent sealing cover with a gas pressure sensor and a temperature sensor arranged inside, a vacuum pumping device, an exhaust pipe, a lead connected with a socket and a plurality of lead groups, wherein each lead group comprises a lead connected with a plug, three common leads and eight crocodile clips;
step two, equipment assembly: connecting eight alligator clips in each group of lead groups to two ends of a lead connected with a plug and two ends of three common leads respectively, connecting the leads connected with a socket in series with a battery formation machine, and connecting vacuum-pumping equipment with exhaust holes on a flat plate through an exhaust pipe;
step three, preparing a large-capacity square battery: selecting a plurality of high-capacity square batteries, wherein the number of the high-capacity square batteries is four times that of the lead groups;
step four, grouping the large-capacity square batteries: grouping the selected large-capacity square batteries, wherein each group comprises four large-capacity square batteries, and then placing all the grouped large-capacity square batteries on the top of the processing platform;
step five, connecting the large-capacity square battery: firstly, according to the connection requirement of a series circuit, crocodile clips at two ends of a common lead are respectively clamped on the positive electrode and the negative electrode of two adjacent high-capacity square batteries, so that the four high-capacity square batteries are connected by utilizing three leads with two ends connected with the crocodile clips, and then the crocodile clips at two ends of the lead connected with a plug are respectively clamped on the positive electrode of a first high-capacity square battery and the negative electrode of a fourth high-capacity square battery, so that the four high-capacity square batteries form a series circuit;
step six, equipment connection: after a plurality of groups of large-capacity square batteries are respectively connected in series, a hemispherical transparent sealing cover internally provided with a gas pressure sensor and a temperature sensor is covered on the top of each large-capacity square battery, and one end of a lead connected with a plug is positioned outside the transparent sealing cover;
step seven, exhausting: pumping air between the transparent sealing cover and the processing platform by using vacuumizing equipment, detecting the gas pressure between the transparent sealing cover and the processing platform in real time by using a gas pressure sensor, and closing the vacuumizing equipment when the pressure reaches a set value;
step eight, formation: then inserting a plug on one of the wires connected with the plug into a socket on a wire connected with the socket and connected with the battery formation machine in series, so that the battery formation machine is connected with a series circuit formed by the four high-capacity square batteries in series, and then starting the battery formation machine, wherein the battery formation machine is used for performing formation treatment on the four high-capacity square batteries;
step nine, secondary exhaust: during the formation process, gas is generated in the battery, the air pressure between the transparent sealing cover and the processing platform changes, then the vacuumizing equipment is started again, and the gas pressure between the transparent sealing cover and the processing platform is detected through the gas pressure sensor, so that the gas pressure between the transparent sealing cover and the processing platform returns to a set value, and the gas generated during the formation process is discharged;
step ten, heating: electrifying an electric heating element in the processing platform, monitoring the temperature between the transparent sealing cover and the processing platform in real time through a temperature sensor, heating after the electric heating element passes through the electric heating element, and increasing the temperature between the transparent sealing cover and the processing platform to enable the temperature between the transparent sealing cover and the processing platform to reach 42-48 ℃, so that the air in the transparent sealing cover can be dried conveniently, and the water vapor in the air can be eliminated;
eleven, batch processing: after the formation is finished, the current plug on the socket is pulled out, another plug is replaced, the battery formation machine is started again, and the step eight, the step nine and the step ten are repeated until all the large-capacity square batteries are processed;
step twelve, unloading: and after the formation of the large-capacity square battery is finished, removing the negative pressure state between the transparent sealing cover and the processing platform, taking down the crocodile clip from the positive electrode and the negative electrode of the large-capacity square battery, and taking down the battery from the processing platform.
Preferably, in the first step, the bottom of the transparent sealing cover is bonded by a rubber sealing ring through waterproof glue.
Preferably, the thickness of the rubber layer on the top of the flat plate in the first step is set to be 1-3 cm.
Preferably, the electric heating element in the first step is set as a heating resistor.
The invention has the technical effects and advantages that:
1. according to the invention, a plurality of groups of large-capacity square batteries are connected in series by utilizing a plurality of groups of wires with plugs and then are sequentially inserted into the sockets on the wires which are connected with the sockets and are connected with the battery formation machine in series, so that formation of large-batch large-capacity square batteries is completed, the operation is simpler, the wiring mode of the batteries and the battery formation machine is simplified, the formation efficiency is improved, the formation process of the batteries is simplified, the formation time and labor cost are saved, and various indexes of the large-capacity square batteries are improved;
2. according to the invention, the gas pressure between the transparent sealing cover and the processing platform is detected in real time in the formation process, and the gas between the transparent sealing cover and the processing platform is exhausted by using the vacuumizing equipment, so that the gas generated in the formation process of the large-capacity square battery is completely eliminated, and the influence of gas residue on the performance and the service life of the battery is avoided;
3. according to the invention, the heating is carried out in the formation process, so that the influence on the performance of the battery due to overhigh temperature can be avoided while the water vapor in the air is effectively eliminated, and the quality of the battery after formation is ensured.
Drawings
FIG. 1 is a schematic process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a method for forming four large-capacity square batteries in series connection as shown in figure 1, which comprises the following steps:
step one, equipment preparation: preparing a flat plate with a rubber layer adhered to the top, an electric heating element arranged inside and an exhaust hole penetrating through the flat plate as a processing platform, and then preparing a battery formation machine, a hemispherical transparent sealing cover with a gas pressure sensor and a temperature sensor arranged inside, a vacuum pumping device, an exhaust pipe, a lead connected with a socket and a plurality of lead groups, wherein each lead group comprises a lead connected with a plug, three common leads and eight crocodile clips;
step two, equipment assembly: connecting eight alligator clips in each group of lead groups to two ends of a lead connected with a plug and two ends of three common leads respectively, connecting the leads connected with a socket in series with a battery formation machine, and connecting vacuum-pumping equipment with exhaust holes on a flat plate through an exhaust pipe;
step three, preparing a large-capacity square battery: selecting a plurality of high-capacity square batteries, wherein the number of the high-capacity square batteries is four times that of the lead groups;
step four, grouping the large-capacity square batteries: grouping the selected large-capacity square batteries, wherein each group comprises four large-capacity square batteries, and then placing all the grouped large-capacity square batteries on the top of the processing platform;
step five, connecting the large-capacity square battery: firstly, according to the connection requirement of a series circuit, crocodile clips at two ends of a common lead are respectively clamped on the positive electrode and the negative electrode of two adjacent high-capacity square batteries, so that the four high-capacity square batteries are connected by utilizing three leads with two ends connected with the crocodile clips, and then the crocodile clips at two ends of the lead connected with a plug are respectively clamped on the positive electrode of a first high-capacity square battery and the negative electrode of a fourth high-capacity square battery, so that the four high-capacity square batteries form a series circuit;
step six, equipment connection: after a plurality of groups of large-capacity square batteries are respectively connected in series, a hemispherical transparent sealing cover internally provided with a gas pressure sensor and a temperature sensor is covered on the top of each large-capacity square battery, and one end of a lead connected with a plug is positioned outside the transparent sealing cover;
step seven, exhausting: pumping air between the transparent sealing cover and the processing platform by using vacuumizing equipment, detecting the gas pressure between the transparent sealing cover and the processing platform in real time by using a gas pressure sensor, and closing the vacuumizing equipment when the pressure reaches a set value;
step eight, formation: then inserting a plug on one of the wires connected with the plug into a socket on a wire connected with the socket and connected with the battery formation machine in series, so that the battery formation machine is connected with a series circuit formed by the four high-capacity square batteries in series, and then starting the battery formation machine, wherein the battery formation machine is used for performing formation treatment on the four high-capacity square batteries;
step nine, secondary exhaust: during the formation process, gas is generated in the battery, the air pressure between the transparent sealing cover and the processing platform changes, then the vacuumizing equipment is started again, and the gas pressure between the transparent sealing cover and the processing platform is detected through the gas pressure sensor, so that the gas pressure between the transparent sealing cover and the processing platform returns to a set value, and the gas generated during the formation process is discharged;
step ten, heating: electrifying an electric heating element in the processing platform, monitoring the temperature between the transparent sealing cover and the processing platform in real time through a temperature sensor, heating after the electric heating element passes through the electric heating element, and increasing the temperature between the transparent sealing cover and the processing platform to enable the temperature between the transparent sealing cover and the processing platform to reach 42 ℃, so that the air in the transparent sealing cover can be dried, and the water vapor in the air can be eliminated;
eleven, batch processing: after the formation is finished, the current plug on the socket is pulled out, another plug is replaced, the battery formation machine is started again, and the step eight, the step nine and the step ten are repeated until all the large-capacity square batteries are processed;
step twelve, unloading: and after the formation of the large-capacity square battery is finished, removing the negative pressure state between the transparent sealing cover and the processing platform, taking down the crocodile clip from the positive electrode and the negative electrode of the large-capacity square battery, and taking down the battery from the processing platform.
In the technical scheme, the bottom of the transparent sealing cover in the first step is bonded with a rubber sealing ring through waterproof glue, the thickness of a rubber layer at the top of the flat plate in the first step is set to be 1-3 cm, and the electric heating element is set to be a heating resistor in the first step.
Example 2
The difference from the above example 1 is:
step ten, heating: for the electric heating element of processing platform inside circular telegram and through the temperature between temperature sensor real-time supervision transparent sealing cover and the processing platform, electric heating element generates heat through the back, promotes the temperature between transparent sealing cover and the processing platform for the temperature between transparent sealing cover and the processing platform reaches 45 degrees centigrade, so that carry out the drying to air wherein, eliminate the steam in the air.
Example 3
The difference from the above-described embodiments 1 and 2 is that:
step ten, heating: for the electric heating element of processing platform inside circular telegram and through the temperature between temperature sensor real-time supervision transparent sealing cover and the processing platform, electric heating element generates heat through the back, promotes the temperature between transparent sealing cover and the processing platform for the temperature between transparent sealing cover and the processing platform reaches 48 degrees centigrade, so that carry out the drying to the air wherein, eliminate the steam in the air.
20 batteries formed by the above examples 1 to 3 were selected and tested, and the following table was obtained:
| number of detections | Temperature of heating | Performance impact | Residual water vapor | |
| Example 1 | 20 are provided with | 42℃ | Is free of | Is provided with |
| Example 2 | 20 are provided with | 45℃ | Is free of | Is free of |
| Example 3 | 20 are provided with | 48℃ | Is provided with | Is free of |
As can be seen from the above table, the technical solution provided in embodiment 2 effectively eliminates moisture in the air, and at the same time does not affect the performance of the battery due to an excessively high temperature, thereby ensuring the quality of the battery after formation.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. A method for forming four large-capacity square batteries in series connection is characterized by comprising the following steps:
step one, equipment preparation: preparing a flat plate with a rubber layer adhered to the top, an electric heating element arranged inside and an exhaust hole penetrating through the flat plate as a processing platform, and then preparing a battery formation machine, a hemispherical transparent sealing cover with a gas pressure sensor and a temperature sensor arranged inside, a vacuum pumping device, an exhaust pipe, a lead connected with a socket and a plurality of lead groups, wherein each lead group comprises a lead connected with a plug, three common leads and eight crocodile clips;
step two, equipment assembly: connecting eight alligator clips in each group of lead groups to two ends of a lead connected with a plug and two ends of three common leads respectively, connecting the leads connected with a socket in series with a battery formation machine, and connecting vacuum-pumping equipment with exhaust holes on a flat plate through an exhaust pipe;
step three, preparing a large-capacity square battery: selecting a plurality of high-capacity square batteries, wherein the number of the high-capacity square batteries is four times that of the lead groups;
step four, grouping the large-capacity square batteries: grouping the selected large-capacity square batteries, wherein each group comprises four large-capacity square batteries, and then placing all the grouped large-capacity square batteries on the top of the processing platform;
step five, connecting the large-capacity square battery: firstly, according to the connection requirement of a series circuit, crocodile clips at two ends of a common lead are respectively clamped on the positive electrode and the negative electrode of two adjacent high-capacity square batteries, so that the four high-capacity square batteries are connected by utilizing three leads with two ends connected with the crocodile clips, and then the crocodile clips at two ends of the lead connected with a plug are respectively clamped on the positive electrode of a first high-capacity square battery and the negative electrode of a fourth high-capacity square battery, so that the four high-capacity square batteries form a series circuit;
step six, equipment connection: after a plurality of groups of large-capacity square batteries are respectively connected in series, a hemispherical transparent sealing cover internally provided with a gas pressure sensor and a temperature sensor is covered on the top of each large-capacity square battery, and one end of a lead connected with a plug is positioned outside the transparent sealing cover;
step seven, exhausting: pumping air between the transparent sealing cover and the processing platform by using vacuumizing equipment, detecting the gas pressure between the transparent sealing cover and the processing platform in real time by using a gas pressure sensor, and closing the vacuumizing equipment when the pressure reaches a set value;
step eight, formation: then inserting a plug on one of the wires connected with the plug into a socket on a wire connected with the socket and connected with the battery formation machine in series, so that the battery formation machine is connected with a series circuit formed by the four high-capacity square batteries in series, and then starting the battery formation machine, wherein the battery formation machine is used for performing formation treatment on the four high-capacity square batteries;
step nine, secondary exhaust: during the formation process, gas is generated in the battery, the air pressure between the transparent sealing cover and the processing platform changes, then the vacuumizing equipment is started again, and the gas pressure between the transparent sealing cover and the processing platform is detected through the gas pressure sensor, so that the gas pressure between the transparent sealing cover and the processing platform returns to a set value, and the gas generated during the formation process is discharged;
step ten, heating: electrifying an electric heating element in the processing platform, monitoring the temperature between the transparent sealing cover and the processing platform in real time through a temperature sensor, heating after the electric heating element passes through the electric heating element, and increasing the temperature between the transparent sealing cover and the processing platform to enable the temperature between the transparent sealing cover and the processing platform to reach 42-48 ℃, so that the air in the transparent sealing cover can be dried conveniently, and the water vapor in the air can be eliminated;
eleven, batch processing: after the formation is finished, the current plug on the socket is pulled out, another plug is replaced, the battery formation machine is started again, and the step eight, the step nine and the step ten are repeated until all the large-capacity square batteries are processed;
step twelve, unloading: and after the formation of the large-capacity square battery is finished, removing the negative pressure state between the transparent sealing cover and the processing platform, taking down the crocodile clip from the positive electrode and the negative electrode of the large-capacity square battery, and taking down the battery from the processing platform.
2. The method according to claim 1, wherein the four large-capacity square batteries are connected in series, and the method comprises the following steps: and in the first step, the bottom of the transparent sealing cover is bonded with a rubber sealing ring through waterproof glue.
3. The method according to claim 1, wherein the four large-capacity square batteries are connected in series, and the method comprises the following steps: the thickness of the rubber layer on the top of the flat plate in the first step is set to be 1-3 cm.
4. The method according to claim 1, wherein the four large-capacity square batteries are connected in series, and the method comprises the following steps: the electric heating element in the first step is set as a heating resistor.
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| CN201810987687.0A CN109167114B (en) | 2018-08-28 | 2018-08-28 | Method for forming four large-capacity square batteries in series connection |
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| CN109167114B true CN109167114B (en) | 2020-07-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3503414B2 (en) * | 1997-05-12 | 2004-03-08 | 日産自動車株式会社 | Battery charging rate adjustment device for assembled batteries |
| IT1307517B1 (en) * | 1999-11-19 | 2001-11-06 | Franco Stocchiero | ACCUMULATOR TRAINING SYSTEM |
| JP2008059955A (en) * | 2006-08-31 | 2008-03-13 | Kokusai Kiban Zairyo Kenkyusho:Kk | Secondary battery, and its manufacturing method |
| CN102569708B (en) * | 2012-03-06 | 2013-12-25 | 超威电源有限公司 | Auto wire connection matching device for storage batteries and method |
| CN103531859A (en) * | 2013-09-25 | 2014-01-22 | 超威电源有限公司 | Charge-discharge circulation type storage battery internal formation process |
| EP3207579B1 (en) * | 2014-10-13 | 2020-01-29 | 24M Technologies, Inc. | Systems and methods for series battery charging and forming |
| CN106129506B (en) * | 2016-08-12 | 2019-07-19 | 合肥国轩高科动力能源有限公司 | A kind of compound method for lithium ion battery |
| CN106299514B (en) * | 2016-08-31 | 2019-04-26 | 浙江超威创元实业有限公司 | A kind of compound method for lithium ion battery |
| CN106299484B (en) * | 2016-10-18 | 2019-03-19 | 江苏正品新能源科技有限公司 | A kind of silent formation device of lithium ion battery series connection |
| CN107834114A (en) * | 2017-12-01 | 2018-03-23 | 惠州市吉美泰电子科技有限公司 | Lithium ion battery parallel connection formation system and technique |
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Effective date of registration: 20210119 Address after: 3 / F and 4 / F, building B-5, Xihu science and technology business incubator, east section of LV highway, Weiyi District, Xi'an City, Shaanxi Province, 710300 Patentee after: Shaanxi Zhongfeng power energy Co.,Ltd. Address before: 710000 no.11003 Datian international, No.10 Tuanjie South Road, high tech Zone, Xi'an, Shaanxi Province Patentee before: SHAANXI ZHONGFENG NEW ENERGY Co.,Ltd. |