Novel lithium thionyl chloride battery positive electrode carbon bag filling mold

Abstract

The utility model provides a novel lithium thionyl chloride battery positive electrode carbon bag filling mold, which comprises a base, a carbon bag filling mold and a carbon bag filling mold, the discharging sleeve is arranged above the base in a liftable mode, a center hole of the discharging sleeve and the mounting hole are coaxially formed, and a diaphragm supporting part extending outwards is arranged on the inner wall of the center hole of the discharging sleeve; the fixing ring is fixedly installed outside the discharging sleeve, and a positioning cavity used for containing the upper end of the steel shell is formed between the fixing ring and the diaphragm supporting part of the discharging sleeve; the lithium thionyl chloride battery positive electrode carbon bag filling device is reasonable in design structure, can simply and rapidly achieve filling of a lithium thionyl chloride battery positive electrode carbon bag, positions a current collector in the center position of a steel shell through a current collector supporting rod, compacts the carbon bag through a pressing rod with scales, achieves uniform and consistent compaction density, and improves the compaction efficiency in the compaction process. The diaphragm supporting part can support and position the diaphragm in the steel shell, and the problem that the diaphragm is damaged is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of lithium-thionyl chloride battery production technology, specifically relating to a novel lithium-thionyl chloride battery positive electrode carbon bag filling mold. Background Technology

[0002] Lithium thionyl chloride (LiTHC) batteries, as a type of battery with high specific energy and long storage life, have been widely used in many fields. Their high energy density and stable chemical properties make them ideal backup power sources for devices such as electricity meters, watches, gas meters, smoke detectors, and heat meters. However, with the diversification of application scenarios, LiTHC batteries face various complex environmental conditions in practical use, such as high temperature, low temperature, horizontal use, and inverted use. These different usage conditions place higher demands on battery performance.

[0003] Currently, the capacity of lithium thionyl chloride batteries is significantly affected when used horizontally or upside down, leading to performance degradation. To address this issue, researchers have proposed a novel ring-shaped carbon pack structure. This structure involves filling the battery's steel casing with positive electrode particles, creating a ring-shaped structure within the casing. This structure effectively reduces capacity loss during horizontal discharge. However, traditional filling processes cannot achieve the ring-shaped structure required for the battery's internal structure. Utility Model Content

[0004] This invention provides a novel lithium-ion battery cathode carbon pack filling mold, which can quickly and easily fill lithium-ion battery cathode carbon packs. The current collector is positioned at the center of the steel shell by the current collector support rod, and the carbon pack is compacted by a graduated pressure bar to achieve uniform compaction density. During the compaction process, the diaphragm support part can support and position the film inside the steel shell to avoid diaphragm damage.

[0005] The technical solution adopted in this utility model is: a novel lithium-ion battery cathode carbon bag filling mold, comprising:

[0006] The base has mounting holes for mounting the steel casing of the battery;

[0007] The feeding sleeve is height-adjustable and positioned above the base. The central hole of the feeding sleeve is coaxial with the mounting hole. The inner wall of the central hole of the feeding sleeve has an outwardly extending diaphragm support.

[0008] A fixing ring is fixedly installed on the outside of the feeding sleeve, and a positioning cavity for accommodating the upper end of the steel shell is formed between the fixing ring and the diaphragm support of the feeding sleeve.

[0009] The liftable current collector support rod is coaxially arranged with the center of the discharge sleeve;

[0010] The pressure bar is sleeved outside the current collector support rod and can move along the axial direction of the current collector support rod. When the pressure bar moves downward, it can enter the inside of the feeding sleeve and then enter the steel shell to compact the positive electrode particles filled in the steel shell.

[0011] Also includes:

[0012] The base plate and the base are fixed to the surface of the base plate;

[0013] The top plate is located above the bottom plate, and the top plate and the bottom plate are connected by guide rods;

[0014] The lifting plate is slidably connected to the guide rod, and the unloading sleeve is fixed on the lifting plate.

[0015] The lifting plate is equipped with a first guide member, and the lifting plate slides in cooperation with the guide rod through the first guide member.

[0016] The system also includes a second guide member, which is installed above the top plate. The current collector support rod is slidably connected to the second guide member, and a locking screw for locking the current collector support rod is installed on the side of the top plate.

[0017] A magnetic suction device is installed on the lower surface of the top plate, and the pressure bar can be attracted to the magnetic suction device.

[0018] The pressure bar has scale lines on its outer surface.

[0019] The upper end of the inner hole of the feeding sleeve is provided with a funnel-shaped feeding port, which is designed to quickly guide the positive electrode particles into the feeding sleeve.

[0020] The lower edge of the inner hole of the fixing ring is chamfered.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model has a reasonable design structure, which can easily and quickly realize the filling of the positive electrode carbon pack of lithium-ion batteries. The current collector is positioned in the center of the steel shell by the current collector support rod, and the carbon pack is compacted by the graduated pressure bar to achieve uniform compaction density. During the compaction process, the diaphragm support part can support and position the film inside the steel shell to avoid the problem of diaphragm damage. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present utility model;

[0024] Figure 2 This is a cross-sectional view of the present invention;

[0025] Figure 3 This is a structural diagram showing the connection between the feeding sleeve and the fixing ring of this utility model.

[0026] in:

[0027] 1. Base plate; 2. Lifting plate; 3. First guide component; 4. Guide rod; 5. Top plate; 6. Second guide component; 7. Locking screw; 8. Magnetic suction component; 9. Pressure bar; 10. Current collector support rod; 11. Discharge sleeve; 1101. Discharge port; 1102. Diaphragm support part; 12. Fixing ring; 1201. Chamfer; 13. Steel shell; 14. Current collector; 15. Base; 16. Mounting hole; 17. Positioning cavity. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] As shown in the figure, a novel lithium-ion battery cathode carbon bag filling mold includes:

[0030] The base 15 has a mounting hole 16 for mounting the battery steel shell 13. The inner diameter of the mounting hole 16 matches the outer diameter of the steel shell 13, so that after the steel shell 13 is inserted into the mounting hole 16, the center line of the steel shell 13 can coincide with the center line of the mounting hole 16.

[0031] The feeding sleeve 11 is raised and lowered above the base 15, and the central hole of the feeding sleeve 11 is coaxial with the mounting hole 16. The inner wall of the central hole of the feeding sleeve 11 has an outwardly extending diaphragm support part 1102.

[0032] The fixing ring 12 is fixedly installed on the outside of the feeding sleeve 11, and a positioning cavity 17 for accommodating the upper end of the steel shell 13 is formed between it and the diaphragm support part 1102 of the feeding sleeve 11. Since the battery diaphragm is installed on the inner wall of the steel shell 13 during the filling of the carbon bag, in order to avoid damage to the diaphragm during the filling process, the downward extending diaphragm support part 1102 is provided to protect the diaphragm and prevent damage to the diaphragm.

[0033] The liftable current collector support rod 10 is coaxially arranged with the center of the feeding sleeve 11. The current collector support rod 10 serves to guide the pressure rod 9 on one hand, and on the other hand, it is used to fit the current collector 14 (which has a ring structure) at the center of the battery onto the lower end of the current collector support rod 10. This ensures that after the final filling and molding, the current collector 14 is exactly at the center of the steel shell 13, which not only achieves the filling and compaction effect of the positive electrode carbon bag, but also achieves the installation purpose of the current collector 14.

[0034] The pressure rod 9 is sleeved outside the current collector support rod 10 and can move along the axial direction of the current collector support rod 10. When the pressure rod 9 moves downward, it can enter the inside of the feeding sleeve 11 and then enter the steel shell 13 to compact the positive electrode particles filled in the steel shell 13.

[0035] Also includes:

[0036] Base plate 1, base 15 is fixed to the surface of base plate 1;

[0037] Top plate 5 is located above bottom plate 1, and top plate 5 and bottom plate 1 are connected by guide rod 4;

[0038] The lifting plate 2 is slidably connected to the guide rod 4, and the unloading sleeve 11 is fixed on the lifting plate 2.

[0039] Specifically, a first guide member 3 is installed on the lifting plate 2. The lifting plate 2 slides with the guide rod 4 through the first guide member 3, which can be used to avoid the lifting plate 2 directly contacting the guide rod 4, making the lifting plate 2 more flexible in lifting.

[0040] The system also includes a second guide member 6, which is installed above the top plate 5. The current collector support rod 10 is slidably connected to the second guide member 6, and a locking screw 7 for locking the current collector support rod 10 is installed on the side of the top plate 5. The structure of the second guide member 6 and the guide rod 4, as well as the structure of the first guide member 3 and the current collector support rod 10, can all be made using linear guide rail modules, which have the characteristics of good guiding effect and high strength.

[0041] A magnetic suction element 8 is installed on the lower surface of the top plate 5. The pressure rod 9 can be attracted to the magnetic suction element 8. In this example, the magnetic suction element 8 is a magnet. It is designed so that the pressure rod 9 can be attracted to the magnetic suction element 8 when it is not pressed, so as to avoid affecting the filling process of the positive electrode particles.

[0042] The pressure bar 9 has scale lines on its outer surface. During the pressing process of positive electrode particles, the position of the pressure bar 9 can be controlled by observing the position of the scale lines, which helps to achieve uniform compaction density of the positive electrode particles.

[0043] The upper end of the inner hole of the feeding sleeve 11 is provided with a trumpet-shaped feeding port 1101, which is configured to quickly guide the positive electrode particles into the feeding sleeve 11.

[0044] The lower edge of the inner hole of the fixing ring 12 is provided with a chamfer 1201 to facilitate the upper end of the steel shell 13 to quickly enter the positioning cavity 17 formed by the diaphragm support 1102 and the fixing ring 12, so as to avoid jamming.

[0045] In operation, this novel lithium-ion battery cathode carbon bag filling mold first places the steel shell 13 at the mounting hole 16 of the base 15. By moving the lifting plate 2, the feeding sleeve 11 and the fixing ring 12 are lowered, allowing the upper end of the steel shell 13 to enter the positioning cavity 17 formed by the separator support part 1102 and the fixing ring 12. At this time, the steel shell 13 is also fixed under the gravity of the lifting plate 2. Then, the locking screw 7 used to lock the current collector support rod 10 is loosened, and the current collector 14 is placed on the lower end of the current collector support rod 10. The current collector support rod 10 is then lowered to its lower limit position. At this time, the current collector 14 is located in the center of the steel shell 13. Then, the cathode particles are fed through the feeding port 1. 101 enters the feeding sleeve 11 and then enters the steel shell 13 along the feeding sleeve 11. Since the current collector support rod 10 and the current collector 14 are located in the center of the steel shell 13, the falling positive electrode particles are distributed in a ring shape in the steel shell 13. Then, the pressure rod 9 is moved down, and the operator can press the pressure rod 9 to compact the positive electrode particles. The pressing position can be judged by the scale line on the outer surface of the pressure rod 9. After the pressing is completed, the pressure rod 9 and the current collector support rod 10 are moved upward respectively. The pressure rod 9 is attracted to the magnetic suction part 8, and the current collector support rod 10 is locked by the locking screw 7 on the side of the top plate 5. The support plate is raised, and the filled steel shell 13 can be taken out from the mounting hole 16, thus completing the entire operation process.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel lithium sub-battery cathode carbon package packing mold, characterized in that, It includes: The base has a mounting hole for mounting the battery steel shell; The blanking sleeve is arranged above the base in a liftable manner, and the center hole of the blanking sleeve is coaxially arranged with the mounting hole. The inner wall of the center hole of the blanking sleeve is provided with a diaphragm support portion extending outward; The fixing ring is fixedly installed outside the blanking sleeve, and a positioning cavity for accommodating the upper end of the steel shell is formed between the diaphragm support portion of the blanking sleeve; The liftable current collector support rod is coaxially arranged with the center of the blanking sleeve; The pressing rod is sleeved outside the current collector support rod and can move in the axial direction of the current collector support rod. When the pressing rod moves downward, it can enter the inside of the blanking sleeve and then enter the steel shell to compact the positive electrode particles filled in the steel shell.

2. A novel lithium sub-battery cathode carbon packing wrapping molding die according to claim 1, characterized in that, It also includes: The base is fixed on the surface of the bottom plate; The top plate is located above the bottom plate, and the top plate and the bottom plate are connected by guide rods; The lifting plate is slidably connected with the guide rod, and the blanking sleeve is fixed on the lifting plate.

3. A novel lithium sub-battery cathode carbon packing wrapping molding die according to claim 2, characterized in that, The first guide is installed on the lifting plate, and the lifting plate is slidably connected with the guide rod through the first guide.

4. A novel lithium sub-battery cathode carbon packing wrapping molding die according to claim 1, characterized in that, It also includes a second guide, which is installed above the top plate. The current collector support rod is slidably connected with the second guide, and a locking screw is installed on the side of the top plate for locking the current collector support rod.

5. A novel lithium sub-battery cathode carbon packing loading mold according to claim 1, characterized in that, The lower surface of the top plate is provided with a magnetic element, and the pressing rod can be attracted to the magnetic element.

6. A novel lithium sub-battery cathode carbon packing girth molding mold according to claim 1, characterized in that, The outer position of the pressing rod is provided with a scale line.

7. A novel lithium sub-battery cathode carbon packing girth molding mold according to claim 1, characterized in that, The inner hole of the blanking sleeve is provided with a trumpet-shaped blanking port at the upper end position, which is used for quickly guiding the positive electrode particles into the blanking sleeve.

8. A novel lithium sub-battery cathode carbon packing loading mold according to claim 1, characterized in that, The inner hole of the fixing ring is provided with a chamfer at the lower end edge position.

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