Cover plate for new energy lithium battery and forming process of cover plate

A lithium battery and new energy technology, applied in the field of new energy lithium battery cover plate and its forming process, can solve the problem of slow exhaust efficiency and liquid injection efficiency, inability to exhaust and reduce pressure, loose terminals and positive and negative poles, etc. problems, to achieve the effect of improving liquid injection efficiency and exhaust efficiency, increasing liquid injection volume, and increasing exhaust volume

Pending Publication Date: 2021-11-16
苏州市新胜佳科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0002] "Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. It can generally be divided into two categories: lithium metal battery and lithium ion battery. The column is generally fixed by welding, and the fixing stability is poor. After the lithium battery is assembled, there are usually the following problems: there is only one exhaust port and liquid injection port for ordinary lithium batteries, and the exhaust efficiency and liquid injection efficiency are very slow. When the internal pressure of the battery is too high , unable to exhaust and decompress, the existing lithium battery cover plate, when the internal pressure of the battery is higher than a certain value, although the air pressure can lift the exhaust piece upwards, so that the gas can be discharged through the exhaust port to reduce th...
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Abstract

The invention discloses a cover plate for a new energy lithium battery and a forming process thereof, and relates to the technical field of forming processes, in particular to the cover plate for the new energy lithium battery. The cover plate comprises a battery box; a heat insulation plate is arranged in an inner cavity of the battery box, a cover plate is mounted on the cover plate, a positive electrode column is arranged on the left side of the upper surface of the cover plate, a negative electrode column is arranged on the right side of the upper surface of the cover plate, terminal fixing covers are installed on the outer surfaces of the positive electrode column and the negative electrode column, and threaded grooves are formed in the outer surfaces of the terminal fixing covers. According to the cover plate for the new energy lithium battery and the forming process of the cover plate, the outer surfaces of the positive electrode column and the negative electrode column are sleeved with the terminal fixing cover, after the terminal is connected with the positive electrode column and the negative electrode column, the pressing nuts are rotated, and the two pressing nuts are used for fixing the terminal; therefore, the stability between the terminal and the positive electrode column and the stability between the terminal and the negative electrode column can be greatly improved.

Application Domain

Cell lids/covers

Technology Topic

Composite materialStructural engineering +3

Image

  • Cover plate for new energy lithium battery and forming process of cover plate
  • Cover plate for new energy lithium battery and forming process of cover plate
  • Cover plate for new energy lithium battery and forming process of cover plate

Examples

  • Experimental program(1)

Example Embodiment

[0026] Next, the technical solutions in the embodiments of the present invention will be described in connection with the drawings of the embodiments of the present invention, and it is understood that the described embodiments are merely the embodiments of the present invention, not all of the embodiments.
[0027] See Figure 4 with Figure 5 The present invention provides a technical solution: a new energy lithium battery plate, including a battery case, battery case 1 in a lumen is provided with a heat insulating plate 2, a cover plate 3 is mounted on the cover plate 3, the cover plate 3 on the left side surface of the column 4 is provided with a positive electrode, a right side surface of the upper cover plate 3 is provided with a negative electrode column 5, the positive electrode 4 and the pillar outer surface of the negative electrode column 5 are attached to the terminal fixing cover 6, by terminal fixing cover 6 defines a connection groove, can be more convenient to 4, the negative electrode post 5 connected to the terminal of the positive electrode column, while being able to use the terminal fixing cover 6 positive electrode column 4, the negative electrode column 5 protected against positive column electrode 4, the negative electrode column 5 being damaged, improve the positive electrode column 4, column life of the negative electrode 5, the terminal cover fixed to the outer surface 6 defines a thread groove, the terminal fixing cover the upper and lower sides of the thread groove defines an outer surface 6 of the there are screwed nut nip 7, the positive electrode connection terminals in column 4, column 5 on the negative electrode through the nip screwing the nut 7, such that the two nip fixed the nut 7 of terminals, the positive electrode can be increased column 4, the stability of negative electrode column 5 between the terminal, can effectively avoid long connecting terminal 4 in question, the negative electrode 5 column loosening of columns in the positive electrode, the nip of the lumen is attached to the nut 7 insulating rubber plate 8, the top cover 3 is fixedly connected with the lumen of the carrier bar 9.
[0028] See Image 6 , Figure 7 with Figure 9 , The top of the carrier bar 9 is fixedly connected to a limiting block 10, the stopper 10 is larger than the diameter of the carrier rod 9, can be utilized stopper 10 for limiting the drive member 12, drive member 12 so that the carrier rod 9 is used, to avoid the drive member 12 from the carrier bar 9 to improve the integrity of the apparatus, the top cover 3 is fixedly connected to the lumen of a limiting spring 11, the carrier stopper lever 9 is in the lumen of the spring 11, the spring 11 is capable of limiting the use of blocking plug 14 for gas floating limit, such that the floating plug 14 will block the air vent plugging, prevent dust from entering the battery box 1, greatly enhances the gas plug block floating seal 14, the outer surface of the lower side 9 of the carrier bar activity 12 is mounted a drive member, the drive member 12 is fixed to the base is connected to the carrier plate 13, bottom plate 13 of the carrier gas blocking floating plug 14 is installed, the use of the floating plug 14 is capable of controlling the gas blocking air pressure within the battery case 1, so that the battery air pressure in the tank is always balanced, the floating block airlock left and right ends 14 are fixed to the upper surface of the drive rod 15 is connected, the other end of the drive rod 15 is fixedly connected to the spool hole 16, the slide hole 16 is fixedly connected with a plug the sliding block 17, the sliding block the outer surface of the movable socket 17 are injection conduit 18, the injection lid is hinged by a hinge 19 on the duct 18, through opening 18 in the injection conduit has two discharge holes by sliding hole two vent plug 16 will be blocked when the pressure to drive the spool hole 16 rises, the exhaust hole can be made on the injection conduit 18 exposed to the exhaust gas, when the gas pressure inside the battery case 1 is too large , excessive gas, the spool hole 16 will continue to rise, so that the second exhaust hole injection conduit 18 exposed, it is possible that the first guide pipe 20, the second exhaust gas pipe 21 at the same time can be greatly improving the exhaust efficiency of the device.
[0029] See Figure 8The shape of the sliding block 17 is a T-shaped bump, and the T-shaped chute having a suitable in the liquid conduit 17 is opened, and the sliding block 17 is fixedly attached to the lower side of the air hole slider 16, which can slip The plug 16 performs a limit, so that the air hole slug 16 is more securely driven, and the contact area between the sliding block 17 and the liquid-liquid conduit 18 can be increased by the T-shaped structure such that the sliding block 17 is connected between the sliding block 17 and the liquid conduit 18. More closely, indirectly increase the tightness between the pocket slip 16 and the liquid-liquid conduit 18, while avoiding frequent friction between the sliding block 17 and the liquid-liquid conduit 18, resulting in the inner diameter of the slide on the fluid catheter 18 to become large. In addition, there is a problem that the sliding block 17 is swayed, resulting in the problem of unstable pockets 16, and there is a top and bottom two exhaust holes on the liquid pipe 18, and the lower vent hole is installed in the lower exhaust hole opened on the liquid conduit 12. The air bag 22 is mounted in the upper venting hole of the air supply tube 20, and the air bag 22 is attached to the upper vent hole, and the airbag 21, the airbag 22 is provided, so that the device has four roads, which can increase the device. Exhaust efficiency.
[0030] See figure 2 with image 3 The outer surface activity of the other end of the other end of the second air tube 21 is attached to the airbag 22, and the upper side of the air bag 22 is mounted, and the lower side of the airbag 22 is mounted, and the air bag 22 is mounted, and the air pressure sensor is passed. 24. If the amount of gas in the airbag 22 can be removed, the staff can make the staff release gas in the airbag 22, and avoid the expansion of the airbag 22, so that the airbag 22 tears, lower the service life of the airbag 22, deflation The plug 23 and the battery case 1, the air bag 22 is used, and the air bag 23, the air pressure sensor 24 all connects to the surface of the battery case 1 and is mounted on the surface of the battery case 1, and the airbag can be more convenient by threaded connection. The gas in 22 is released, more convenient for the staff to operate, by placing the airbag 22 on the other side of the heat insulating plate 2, can avoid the battery heat in the battery case 1, resulting in an expansion of the gas in the airbag 22 .
[0031] A molding process of a new energy lithium battery cover, including the following steps: a mold cavity that is adapted to the cover 3 is opened on the mold cavity table 25, and a fixing frame 26 is fixedly mounted on the mold cavity stage 25. The cylinder 27 is mounted on the output shaft of the cylinder 27, and when the process is molded, the material is placed on the mold chamber 25, and then the output axis of the cylinder can be placed in the mold chamber 25 when the process is molded. Move, drive forming mold 28 moves downward, so that the material placed on the mold cavity 25 is molded, so that the cover sheet 3 is formed, and then the parts on the cover plate 3 are mounted, and finally the cover 3 is mounted in the battery case 1. Come on.
[0032] In summary, the new energy lithium battery cover and its molding process are used. When the air pressure in the lithium battery becomes large and reaches a predetermined value, the floating plug 14 is joined, so that the driver 12 is pair The limiting spring 11 causes extrusion such that the drive member 12 moves upward so that the drive rod 15 is moved upward, and the air hole slider 16 is moved upward, so that the exhaust hole opened on the injection pipe 18 reveals, so that the gas from the first In the airbag 22 in the air bag 22, the air bag 22 is entered in the air bag 22, and the air pressure scale in the air pressure sensor 24 can know the air pressure size in the airbag 22, when the air pressure in the air bag 22 reaches a predetermined value, twist the air plug 23 It is possible to release the gas in the air bag 22, and when the solution is required, it is necessary to open the cover 19 to perform a nip, when the terminal is connected, the terminal is connected to the positive electrode column 4 and the negative electrode when the terminal is connected. On the column 5, then the pressing nut 7 is then pulled, so that the pressing nut 7 is fixed to the terminal.
[0033] In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "within", "outside", etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, is meant to facilitate the description of the present invention and simplified description, rather than indicating or implying that the device or component must have a specific orientation. Construction and operation, it is not understood to be limited to the present invention; the term "first", "second", "third" is only used for the purpose of describing, and cannot be understood as an indication or implies relative importance, in addition, unless otherwise Clear specified and limited, the term "installation", "connected", "connection" should be broadly understood, for example, may be a fixed connection, or a detachable connection, or integrally, can be mechanically connected, or Electrical connection; can be directly connected, or indirectly through the intermediate medium, can be in the interior of the two components. The specific meaning of the above terms in the present invention will be appreciated to those skilled in the art. Moreover, the term "comprising", "comprising" or any other variable is intended to cover non-exclusive contained, thereby enabling a process, method, article, or device including a series of elements, not only those elements, but also not expressly listed. Other elements, or elements that are also inherent to such processes, methods, items, or equipment.
[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art can be understood that these examples can be made, modified, and replaced without departing from the principles and spirit of the present invention. And variations, the scope of the invention is defined by the appended claims and their equivalents.

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