CN218827321U

CN218827321U - Lithium battery aging device with constant temperature function

Info

Publication number: CN218827321U
Application number: CN202221978962.0U
Authority: CN
Inventors: 陈鹏
Original assignee: Yixing Xinchi Energy Technology Co ltd
Current assignee: Yixing Xinchi Energy Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-04-07
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a lithium cell aging device with constant temperature function belongs to lithium cell production and processing technical field, place subassembly, activity temperature measurement subassembly, heating element, automatically controlled storehouse, airtight door including the main tank body, rotation, the rotatory subassembly setting of placing is in the inside bottom of main tank body, activity temperature measurement subassembly fixed connection is on the inside both sides wall of main tank body, and the symmetry sets up the both sides on the rotatory subassembly of placing, heating element installs on the upper end outer wall of main tank body, automatically controlled storehouse fixed mounting is on the lateral wall of main tank body, airtight door is located the main tank body front portion and the left side is articulated with the main tank body. The utility model discloses an activity temperature measurement component has realized the accurate of temperature around the lithium cell among the aging process and has controlled and the uniformity, has avoided the temperature inaccuracy to cause the damage and can guarantee that the lithium cell is heated evenly for the lithium cell, prevents through the rotation that to put the subassembly and further guaranteed that being heated of lithium cell is even.

Description

Lithium battery aging device with constant temperature function

Technical Field

The utility model relates to a lithium cell production and processing technology field especially relates to a lithium cell aging device with constant temperature function.

Background

The aging of the lithium battery generally refers to the placement of the battery after the battery is assembled and injected with liquid and is charged and formed for the first time, and the aging is an indispensable link in the production process of the lithium battery and can be performed at normal temperature or high temperature, wherein the normal temperature aging temperature is 25 ℃, the aging time is 7-28 days, and the high temperature aging temperature is different from different factories and is generally 38-50 ℃, and the aging time is 1-3 days.

The aging is mainly aimed at the following aspects: firstly, the electrolyte is better infiltrated, which is beneficial to the stability of the performance of the lithium ion battery pack; secondly, after the battery is subjected to a pre-formation process, a certain amount of SEI film can be formed on the graphite cathode in the battery, but the film has a compact structure and small pores, and the battery is aged at high temperature, so that the SEI structure recombination is facilitated, and a loose and porous film is formed; thirdly, after active substances in the anode and cathode materials are aged, the acceleration of some side purposes, such as gas generation, electrolyte decomposition and the like, can be promoted, so that the electrochemical performance of the lithium ion battery pack is rapidly stabilized; and fourthly, rejecting unqualified batteries with serious self-discharge, and facilitating screening of batteries with high consistency.

Because the cycle of high-temperature aging is far less than that of normal temperature aging, so at present, high-temperature aging is mostly adopted, but the high-temperature aging needs to pay attention to well-controlled temperature, because the high-temperature aging can produce more degradation effects on active substances than the normal temperature aging, the control is good, active ingredients completely react, the battery characteristic performance is stable, the control is not good, the reaction is excessive, the electrical performance is reduced, the capacity is reduced, the IR is increased, and even the situations such as liquid leakage and the like are very probable, and the condition that the lithium battery is heated unevenly can also exist in the high-temperature aging process, so that the aging degree of the lithium battery is different.

To the above-mentioned problem, need a temperature control accurate, and can let all lithium cells be heated even lithium cell high temperature ageing device.

Disclosure of Invention

An embodiment of the utility model provides a lithium cell aging device with constant temperature function to solve the above-mentioned technical problem who proposes.

The embodiment of the utility model provides a lithium battery aging device with constant temperature function, place subassembly, activity temperature measurement subassembly, heating element, automatically controlled storehouse, airtight door including the main tank body, rotation, the rotatory subassembly setting of placing is in the inside bottom of main tank body, be equipped with the parking space that supplies a plurality of lithium batteries of treating ageing to hold on the rotatory subassembly of placing, activity temperature measurement subassembly fixed connection is on the inside both sides wall of main tank body, and the symmetry sets up the both sides at the rotatory subassembly of placing, heating element installs on the upper end outer wall of main tank body, automatically controlled storehouse fixed mounting is on the lateral wall of main tank body, airtight door is located the main tank body anterior and left side and main tank body is articulated.

Further, rotatory subassembly of placing includes brace table, pivot, places board, motor, fixed plate, the brace table be located the inside lower wall of the main tank body the top and with through four spinal branch vaulting poles fixed connection between the inside lower wall of the main tank body, pivot fixed mounting is directly over the brace table, place the board and be located the pivot directly over, and with pivot fixed connection, it evenly is equipped with a plurality of circular slots that can place the lithium cell on the board to place, the motor is located under the brace table, and fixed mounting is on the fixed plate of its one side, and the output of motor is connected with the pivot, and can drive the pivot of top and place the board and slowly rotate together at circular telegram during operation, fixed plate upper portion and brace table fixed connection, lower part and the inside lower wall fixed connection of the main tank body.

Further, activity temperature measurement subassembly divide into electronic slip table, guard flap and temperature sensor, and electronic slip table fixed mounting is on the inside left wall of main tank body, and guard flap also fixed mounting just wraps up including electronic slip table on the inside left wall of main tank body, and temperature sensor fixed mounting is equipped with on the guard flap and lets temperature sensor pass and can follow its recess that reciprocates on the movable slip table of electronic slip table.

Furthermore, the heating assembly comprises four groups of electric heating fans with the same structure, and the four groups of electric heating fans are uniformly and symmetrically arranged on the outer wall of the upper part of the main box body.

Furthermore, the electric control bin comprises a programmable controller, a liquid crystal screen and a plurality of control buttons, the programmable controller, the liquid crystal screen and the plurality of control buttons are electrically connected, the movable temperature measuring component and the heating component are electrically connected with the programmable controller, the liquid crystal screen is located at the upper middle position of the front face of the electric control bin, and the plurality of control buttons are located below the liquid crystal screen.

Furthermore, a plurality of pulleys are fixedly mounted on the bottom wall of the outer part of the main box body.

Furthermore, the upper portion of airtight door is equipped with visual window.

Furthermore, a door handle is arranged on the airtight door.

The embodiment of the utility model provides an above-mentioned at least one technical scheme who adopts can reach following beneficial effect:

the temperature measurement device comprises a movable temperature measurement assembly, a temperature sensor, a protective baffle and a temperature sensor, wherein the movable temperature measurement assembly is divided into an electric sliding table, the protective baffle and the temperature sensor, the electric sliding table is mounted on the inner left wall of a main box body through a screw structure, the protective baffle is mounted on the inner left wall of the main box body through a screw structure and wraps the electric sliding table, the temperature sensor is fixedly mounted on the movable sliding table of the electric sliding table, and a groove is formed in the protective baffle and allows the temperature sensor to penetrate through the protective baffle and move up and down along the protective baffle; when the part works, the movable sliding table drives the infrared temperature sensor to move up and down, so that the temperature can be measured uniformly at multiple points, and the accurate control of the ambient temperature of the lithium battery is realized.

Secondly, rotatory design of putting the subassembly of preventing can let the lithium cell rotate slowly at ageing in-process, further guarantees being heated evenly of lithium cell.

The heating assembly is four groups of electric heating fans with the same structure, the four groups of electric heating fans are symmetrically arranged on the outer wall of the upper portion of the main box body, the four groups of electric heating fans are uniformly arranged, meanwhile, the electric heating fans transmit hot air to the main box body to heat, heating efficiency is higher, heating is more uniform, the temperature of each position in the main box body is more uniform, and therefore the lithium battery is guaranteed to be heated uniformly.

Fourthly, a plurality of pulleys are fixedly mounted on the bottom wall outside the main box body, and workers can move the device conveniently.

And a visible window is arranged at the upper part of the visible door, so that the internal condition of the main box body can be observed conveniently without opening the device.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a partial three-dimensional structure of the present invention;

fig. 3 is a schematic view of a three-dimensional structure of the rotary placing assembly of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the movable temperature measurement assembly of the present invention;

fig. 5 is a schematic view of a three-dimensional structure of the electric sliding table of the present invention;

fig. 6 is a schematic view of the three-dimensional structure of the electric control cabin of the present invention.

Reference numerals:

the main box body 1, the pulley 11, the rotary placing component 2, the supporting table 21, the supporting rod 211, the rotating shaft 22, the placing plate 23, the circular groove 231, the motor 24, the fixing plate 25, the movable temperature measuring component 3, the electric sliding table 31, the protective baffle 32, the groove 321, the temperature sensor 33, the heating component 4, the electric heating fan 41, the electric control bin 5, the liquid crystal screen 51, the control button 52, the sealed door 6, the visible window 61 and the door handle 62.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1-6, the embodiment of the utility model provides an ageing device of lithium cell with constant temperature function, including the main tank body 1, rotatory subassembly 2, activity temperature measurement subassembly 3, heating element 4, automatically controlled storehouse 5, sealed door 6 of placing, rotatory subassembly 2 setting in the inside bottom of main tank body 1 can be used for placing and fixed lithium cell to can drive the lithium cell rotatory, thereby can thermally equivalent in the assurance heating process, activity temperature measurement subassembly 3 fixed connection is on the both sides wall of main tank body 1 inside, and the symmetry sets up in the both sides of rotatory subassembly 2 of placing, can reciprocate the even temperature measurement of multiple spot, and temperature measurement is more accurate, can be more accurate the temperature around the accuse lithium cell, and further guarantees being heated evenly of lithium cell, heating element 4 installs on the upper end outer wall of main tank body 1, can be through blowing in hot-blast for main tank body 1 heat and constant temperature, automatically controlled storehouse 5 fixed mounting is on the lateral wall of main tank body 1, can be used for the controlling device operation, sealed door 6 is located main tank body 1 anterior and the left side and is articulated with main tank body 1, can be used for airtight box body 1, prevents that the temperature from running off.

Preferably, the rotary placing component 2 comprises a supporting table 21, a rotating shaft 22, a placing plate 23, a motor 24 and a fixing plate 25, the supporting table 21 is located above the inner lower wall of the main box body 1 and is fixedly connected with the inner lower wall of the main box body 1 through four support rods 211, the rotating shaft 22 is fixedly mounted over the supporting table 21, the placing plate 23 is located above the rotating shaft 22 and is fixedly connected with the rotating shaft 22, a plurality of circular grooves 231 are uniformly formed in the placing plate 23 and can be used for placing lithium batteries and fixing the lithium batteries, the motor 24 is located under the supporting table 21 and is fixedly mounted on the fixing plate 25 on one side of the motor 24, the output end of the motor 24 is connected with the rotating shaft 22, the rotating shaft 22 above can be driven during power-on working, the placing plate 23 slowly rotates together, heating uniformity of the lithium batteries is further guaranteed, the upper portion of the fixing plate 25 is fixedly connected with the supporting table 21, and the lower portion is fixedly connected with the inner lower wall of the main box body 1.

Preferably, the movable temperature measurement assembly 3 is divided into an electric sliding table 31, a protective baffle 32 and a temperature sensor 33, the electric sliding table 31 is mounted on the inner left wall of the main box body 1 through a screw structure, the protective baffle 32 is mounted on the inner left wall of the main box body 1 through a screw structure and wraps the electric sliding table 31 inside, the temperature sensor 33 is fixedly mounted on the movable sliding table of the electric sliding table 31, and a groove 321 is formed in the protective baffle 32 to allow the temperature sensor 33 to pass through and move up and down along the movable sliding table; when the part works, the movable sliding table drives the infrared temperature sensor 33 to move up and down back and forth, and temperature can be measured uniformly at multiple points.

Preferably, the heating assembly 4 is four groups of electric heating fans 41 with the same structure, the four groups of electric heating fans 41 are uniformly and symmetrically arranged on the outer wall of the upper portion of the main box body 1, hot air is transmitted into the main box body 1 through the four groups of electric heating fans 41 which are uniformly arranged to heat, the heating efficiency is higher, the heating is more uniform, the temperature of each position in the main box body 1 is more uniform, the lithium battery is uniformly heated, and the electric heating fans 41 are in the prior art.

Preferably, the electronic control cabin 5 includes a programmable controller, a liquid crystal screen 51 and a plurality of control buttons 52, the programmable controller, the liquid crystal screen 51 and the plurality of control buttons 52 are electrically connected, the movable temperature measurement component 3 and the heating component 4 are both electrically connected with the programmable controller, the liquid crystal screen 51 is located at the middle upper position of the front surface of the electronic control cabin 5 and can display temperature, the plurality of control buttons 52 are located below the liquid crystal screen 51 and can be used for switching on and off equipment and adjusting temperature, the programmable controller can control the movable temperature measurement component 3 and the heating component 4 to work cooperatively, so that the temperature around the lithium battery is maintained in a proper temperature range, the temperature values obtained by integrating multipoint measurement are processed, an average value is obtained and output to the liquid crystal screen 51, and the programmable controller is the prior art and has a model number of siemens S7-1200.

Preferably, a plurality of pulleys 11 are fixedly mounted on the bottom wall outside the main box body 1, so that the device can be conveniently moved by workers.

Preferably, a visible window 61 is provided at the upper portion of the airtight door 6, so that the internal condition of the main cabinet 1 can be conveniently observed without opening the device.

Preferably, the door handle 62 is arranged on the airtight door 6, so that the device can be conveniently opened and closed by workers.

The working principle is as follows: when using the device, the airtight door 6 is opened, the lithium battery is placed in the circular groove 231 on the placing plate 23, the airtight door 6 is closed, the device is opened by the manipulation button 52 on the electric control cabin 5, and the temperature is adjusted to a proper temperature. At this time, the movable temperature measurement component 3 starts to work under the control of the programmable controller, the electric sliding table 31 drives the temperature sensor 33 to move up and down, the temperatures at different heights around the lithium battery are collected uniformly at multiple points and are fed back and output to the electric control bin 5, and the average temperature value is obtained through the integration processing of the programmable controller in the electric control bin 5 and is output to the liquid crystal screen 51. Meanwhile, the heating component 4 starts to work under the control of the programmable controller and transfers heat from the top of the main box body 1 to the inside of the main box body 1, so that the heating effect on the lithium battery in the main box body 1 is achieved. Meanwhile, the rotary placing component 2 also starts to work under the control of the programmable controller, the motor 24 works to drive the rotating shaft 22 above, the placing plate 23 and the lithium battery to slowly rotate together, the lithium battery is further guaranteed to be heated uniformly, feedback regulation is formed between the movable temperature measuring component 3 and the heating component 4 through the programmable controller in the electric control bin 5, the whole feedback process is that the programmable controller controls the movable temperature measuring component 3 to measure temperature at multiple points and integrate the temperature into an average temperature value to be output to the liquid crystal screen 51, if the output temperature value is smaller than the temperature value set by a worker, the programmable controller controls the heating component 4 to work to heat the main box body 1, the heating component 4 is switched to a heat preservation gear to start heat preservation until the temperature in the main box body 1 reaches a preset temperature, finally the temperature in the main box body 1 is maintained in a proper temperature range, and the internal condition of the main box body 1 can be observed in real time through the visual window 61 on the sealed door 6 in the aging process.

The above description is only an example of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a lithium battery aging device with constant temperature function, its characterized in that includes the main tank body (1), rotatory subassembly (2), activity temperature measurement subassembly (3), heating element (4), automatically controlled storehouse (5), airtight door (6) of placing, rotatory subassembly (2) of placing is fixed to be set up in the inside bottom of main tank body (1), rotatory placing is equipped with the parking space that supplies a plurality of lithium batteries of treating ageing to hold on subassembly (2), activity temperature measurement subassembly (3) fixed connection is on the inside both sides wall of main tank body (1), and the symmetry sets up the both sides of placing subassembly (2) in the rotation, heating element (4) are installed on the upper end outer wall of main tank body (1), automatically controlled storehouse (5) fixed mounting is on the lateral wall of main tank body (1), airtight door (6) are located the main tank body (1) front portion and the left side and are articulated with main tank body (1).

2. The lithium battery aging device with the constant temperature function according to claim 1, wherein the rotary placing component (2) comprises a supporting table (21), a rotating shaft (22), a placing plate (23), a motor (24) and a fixing plate (25), the supporting table (21) is located right above the inner lower wall of the main box body (1) and is fixedly connected with the inner lower wall of the main box body (1) through four supporting rods (211), the rotating shaft (22) is fixedly installed right above the supporting table (21), the placing plate (23) is located right above the rotating shaft (22) and is fixedly connected with the rotating shaft (22), a plurality of circular grooves (231) capable of placing lithium batteries are uniformly arranged on the placing plate (23), the motor (24) is located right below the supporting table (21) and is fixedly installed on the fixing plate (25) on one side of the motor, the output end of the motor (24) is connected with the rotating shaft (22), and can drive the rotating shaft (22) above and the placing plate (23) to slowly rotate together when the motor works, the upper portion of the fixing plate (25) is fixedly connected with the supporting table (21), and the lower wall of the fixing plate is fixedly connected with the inner portion of the main box body (1).

3. The lithium battery aging device with the constant temperature function according to claim 1, wherein the movable temperature measurement component (3) is divided into an electric sliding table (31), a protective baffle (32) and a temperature sensor (33), the electric sliding table (31) is fixedly mounted on the left wall inside the main box body (1), the protective baffle (32) is also fixedly mounted on the left wall inside the main box body (1) and wraps the electric sliding table (31), the temperature sensor (33) is fixedly mounted on the movable sliding table of the electric sliding table (31), and a groove (321) which can be penetrated by the temperature sensor (33) and can move up and down along the movable sliding table is formed in the protective baffle (32).

4. The lithium battery aging device with the constant temperature function according to claim 1, wherein the heating assembly (4) is four groups of electric heating fans (41) with the same structure, and the four groups of electric heating fans (41) are uniformly and symmetrically arranged on the upper outer wall of the main box body (1).

5. The lithium battery aging device with the constant temperature function according to claim 1, wherein the electronic control cabin (5) comprises a programmable controller, a liquid crystal screen (51) and a plurality of control buttons (52), the programmable controller, the liquid crystal screen (51) and the plurality of control buttons (52) are electrically connected, the movable temperature measurement component (3) and the heating component (4) are both electrically connected with the programmable controller, the liquid crystal screen (51) is located at the upper middle position of the front surface of the electronic control cabin (5), and the plurality of control buttons (52) are located below the liquid crystal screen (51).

6. The lithium battery aging device with the constant temperature function according to claim 1, wherein a plurality of pulleys (11) are fixedly installed on the outer bottom wall of the main box body (1).

7. The lithium battery aging device with the constant temperature function as claimed in claim 1, wherein the upper part of the airtight door (6) is provided with a visible window (61).

8. The lithium battery aging device with the constant temperature function as claimed in claim 1, wherein a door handle (62) is provided on the airtight door (6).