CN-122000510-A - Residual electric quantity discharger of ternary lithium battery single cell

CN122000510ACN 122000510 ACN122000510 ACN 122000510ACN-122000510-A

Abstract

The invention provides a residual electric quantity discharger of a ternary lithium battery single cell, and belongs to the technical field of residual electric quantity discharge treatment of ternary lithium battery single cells. The reaction tank comprises a reaction tank, a feeding assembly and a rotating assembly, wherein the feeding assembly is arranged in the reaction tank and used for loading monomer battery cells, the feeding assembly is connected with the reaction tank, the rotating assembly is used for assisting in arranging the monomer battery cells, and the rotating assembly is connected with the feeding assembly. According to the invention, through arranging the feeding assembly and the rotating assembly, the feeding assembly can conveniently arrange the battery cells, and can be adjusted according to the required loading space in the saline water discharging process, the rotating assembly can not only improve the efficiency of arranging the battery cells, but also ensure that the anode and the cathode of each battery cell can be fully contacted with the saline water in the soaking process, and the battery cells after the discharging treatment can be conveniently collected after the soaking is finished, so that the efficiency is improved, and the potential safety hazard is reduced.

Inventors

CAO ZHILIANG
Yan Ruguo
LAI WENFENG
CAI XINGMING
WEN SHUYING

Assignees

江西天奇金泰阁钴业有限公司

Dates

Publication Date: 20260508
Application Date: 20260210

Claims (10)

1. The residual electric quantity discharger of the ternary lithium battery single cell comprises a reaction tank, and is characterized in that a feeding assembly is arranged in the reaction tank and used for loading the single cell, and the feeding assembly is connected with the reaction tank; The rotary assembly is used for assisting in arranging the single battery cells and is connected with the feeding assembly.
2. The residual electricity discharger of a ternary lithium battery single battery cell according to claim 1, wherein the feeding assembly comprises a uniformly distributed feeding platform, a uniformly distributed groove is formed in the edge of the feeding platform, a rotating rod is rotatably connected to the inner wall of the groove, an adjusting rope penetrates through the free end of the rotating rod, an extension platform is sleeved on the outer contour of the feeding platform, a penetrating groove is formed in the extension platform, corresponding to the position of the rotating rod, a positioning plate is arranged at the top of the feeding platform, a positioning groove is formed in the edge of the positioning plate, corresponding to the groove, and a rotating assembly is inserted in the center of the feeding platform.
3. The residual charge discharger of claim 2, wherein the length dimension of the rotating rod is greater than the length dimension of the inner wall of the through groove, and the outer contour dimension of the rotating rod is matched with the inner wall dimension of the through groove.
4. The residual electricity discharger of a ternary lithium battery single cell according to claim 2, wherein the rotating assembly comprises a rotating shaft inserted in the center of the feeding platform, a lifting ring is fixedly connected to the top of the rotating shaft, a limiting shaft is fixedly connected to the outer contour of the rotating shaft, a bearing plate which is uniformly distributed is fixedly connected to the limiting shaft, a leveling rod which is uniformly distributed is fixedly connected to one side of the limiting shaft, the leveling rod is located at the bottom of the bearing plate, a rotary table is connected to the top thread of the limiting shaft, and corresponding grooves are formed in positions, close to the edges, of the rotary table and correspond to the positions of the grooves one by one.
5. The residual charge discharger of the ternary lithium battery single cell according to claim 4, wherein a groove body matched with the outer contour dimension of the bearing plate is formed in the center of the bottom of the feeding platform, and the inner wall dimension of the groove is larger than the outer contour diameter dimension of the rotating rod.
6. The residual charge discharger of claim 4, wherein one end of the adjusting rope sequentially penetrates through the free end of the rotating rod, the other end of the adjusting rope penetrates through the inner wall of the corresponding groove after being wound on the outer wall of the supporting plate through the positioning groove, and fixing blocks are fixedly connected to two ends of the adjusting rope and two sides of the adjusting rope corresponding to the rotating rod.
7. The residual charge discharger of the ternary lithium battery single cell according to claim 4, wherein the outer wall of the rotary disc is provided with weakening grooves which are uniformly distributed, and the inner wall size of the corresponding groove is larger than the outer contour size of the adjusting rope.
8. The residual charge discharger of the ternary lithium battery single cell according to claim 4, wherein a chute is formed in the center of the leveling rod, a scraping plate is inserted into the chute, and the size of the inner wall of the chute is matched with the outer contour size of the scraping plate.
9. The residual charge discharger of the ternary lithium battery single cell according to claim 8, wherein a connecting rod is fixedly connected to one side of the scraping plate, which is close to the limiting shaft, a circular groove is formed in the position, corresponding to the connecting rod, of the limiting shaft, and the inner wall size of the circular groove is larger than the outer contour size of the connecting rod.
10. The residual electricity discharger of the ternary lithium battery single cell according to claim 9, wherein the top of the connecting rod is fixedly connected with a lifting part, a locking groove is formed in a position, close to the top, of the lifting part, a fixing rod is fixedly connected to the top of the limiting shaft, a plug rod is inserted in a position, close to the top, of the fixing rod, and a ring body is fixedly connected to the outer wall of the plug rod.

Description

Residual electric quantity discharger of ternary lithium battery single cell Technical Field The invention relates to the technical field of discharge treatment of residual electric quantity of a ternary lithium battery single cell, in particular to a residual electric quantity discharger of the ternary lithium battery single cell. Background The ternary lithium battery single cell uses nickel cobalt manganese or nickel cobalt aluminum as a positive electrode material and graphite as a negative electrode material, and is matched with a minimum independent energy storage unit formed by an electrolyte, a diaphragm and a shell, so that the ternary lithium battery single cell has the characteristics of high energy density, excellent low-temperature performance and the like, can be charged and discharged independently, is a core component unit of a battery pack in the fields of consumer electronics, new energy automobiles and the like, the charge and discharge are controlled in a safe range, the residual electric quantity discharge treatment is carried out on the ternary lithium battery single cell, the core is used for guaranteeing the safety and meeting the subsequent requirements, firstly, the situation that the residual electric quantity causes accidental short circuit of the positive electrode and the negative electrode during subsequent disassembly and welding to cause thermal runaway firing is avoided, secondly, the environment-friendly specification is met, the waste battery cell can be discharged before recovery to prevent equipment damage or pollution in crushing and acid dissolution procedures, thirdly, the battery cell consistency is guaranteed when the battery pack is assembled, the battery cell is discharged to uniform voltage during maintenance detection, local overcharge and overdischarge caused by voltage is avoided, and the battery cell swelling and liquid leakage risks during long-term storage are reduced. When the ternary lithium battery single cell is waste, has no gradient utilization value, and needs low cost and safely releases residual electric quantity to enter subsequent recovery (such as disassembly and metal extraction), the common salt water soaking discharge has the advantages of controllable salt water conductivity, smooth discharge process, capability of avoiding overheating of the cell, simple equipment (only needs container and salt water), low cost, capability of batch processing, adaptation to small workshop scenes, and safety and efficiency both by adjusting salt water concentration to control discharge rate. The current small-sized workshops are large containers for containing brine in advance, collected battery cells are collected and directly poured into the containers, the operation is simple and efficient, but the positive electrode and the negative electrode of each battery cell are difficult to ensure that the positive electrode and the negative electrode of each battery cell can be fully contacted with the brine, if the positive electrode and the negative electrode are not fully contacted with reaction liquid, poor contact of a discharge loop can be caused, current is reduced, discharge time is greatly prolonged, residual electric quantity is difficult to discharge, and the residual electric quantity is also likely to be concentrated on local contact points to cause overheating of electrode lugs, so that the battery cells bulge and leak liquid, and when the battery cells which are insufficiently discharged are subsequently recovered and disassembled, the residual electric quantity is likely to be short-circuited and fire is likely to be generated due to partial discharge, and meanwhile, lithium is likely to be separated out from the negative electrode and potential safety hazard is buried. Disclosure of Invention The invention aims to solve the technical problems of providing a residual electric quantity discharger of a ternary lithium battery single cell, which is characterized in that a feeding assembly and a rotating assembly are arranged, the feeding assembly can conveniently arrange the cells and can be adjusted according to a required loading space in the process of discharging brine, the rotating assembly can improve the efficiency of arranging the cells, the positive and negative electrodes of each cell can be ensured to be fully contacted with the brine in the soaking process, the discharged cells can be conveniently collected after the soaking is finished, the efficiency is improved, the potential safety hazard is reduced, and the problems that the positive and negative electrodes of each cell can be difficultly fully contacted with the brine by directly pouring the cells into a container in the existing part of small workshop are solved, so that the potential safety hazard is caused are solved. In order to solve the technical problems, the invention provides the following technical scheme: The residual electric quantity discharger of the ternary lithium ba