CN210235902U - Nitrogen cabinet capable of storing lithium ion battery electrolyte sample for long time - Google Patents
Nitrogen cabinet capable of storing lithium ion battery electrolyte sample for long time Download PDFInfo
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- CN210235902U CN210235902U CN201920759168.9U CN201920759168U CN210235902U CN 210235902 U CN210235902 U CN 210235902U CN 201920759168 U CN201920759168 U CN 201920759168U CN 210235902 U CN210235902 U CN 210235902U
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- cabinet body
- cabinet
- lithium ion
- ion battery
- nitrogen
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 239000003792 electrolyte Substances 0.000 title claims abstract description 45
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 38
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 239000001301 oxygen Substances 0.000 claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000498 cooling water Substances 0.000 claims abstract description 15
- 239000011148 porous material Substances 0.000 claims abstract description 11
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 9
- 229910000619 316 stainless steel Inorganic materials 0.000 claims description 6
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 12
- 239000002253 acid Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- -1 lithium hexafluorophosphate Chemical compound 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to a nitrogen cabinet capable of storing lithium ion battery electrolyte samples for a long time, which comprises a cabinet body, a cooling system and an air exchange system; the cabinet body is internally divided into a plurality of chambers by a pore plate, a plurality of cabinet doors are arranged in front of the cabinet body, and the cabinet doors are in sealing contact with the cabinet body and are respectively connected with the chambers in a one-to-one correspondence manner; the cooling system comprises cooling pipes, the cooling pipes are distributed on the two side faces and the back face of the cabinet body in a snake-shaped arrangement mode, one end of each cooling pipe is a cooling water inlet, the other end of each cooling pipe is a cooling water outlet, and a heat insulation layer is wrapped on each cooling pipe; the ventilation system comprises a vacuumizing port and a nitrogen inlet, wherein the vacuumizing port and the nitrogen inlet are respectively arranged on the cabinet body and communicated with the inner cavity of the cabinet body, a front-end purification column is installed on the vacuumizing port, and a rear-end adsorption column is installed on the nitrogen inlet. The temperature, humidity and oxygen content of the environment in the cabinet body can be controlled, and an excellent storage environment is provided for long-term storage of the lithium ion battery electrolyte sample.
Description
Technical Field
The utility model relates to a chemicals storage device field especially relates to a but nitrogen cabinet of long-term storage lithium ion battery electrolyte sample.
Background
With the increasing global environmental pollution and energy failure, various countries strive to find new green, environmentally friendly and sustainable energy sources. The lithium ion battery has the characteristics of high voltage, large specific energy, long cycle life, stable discharge performance, safety, environmental protection and the like, and has very wide application prospect in the fields of electric automobiles, energy storage and the like. In recent years, lithium ion batteries are gradually popularized in the fields of electric automobiles and energy storage, and the wide application of the lithium ion batteries can relieve increasingly tense petroleum resources, so the lithium ion batteries have high international economic strategic significance.
The lithium ion battery mainly comprises positive and negative pole pieces, a diaphragm, electrolyte and a battery shell. Among them, the electrolyte, which is "blood" of a lithium ion battery, has a great influence on the performance of the battery. The excellent electrolyte can effectively assist the performance exertion of the anode and cathode active materials of the battery and improve the electrochemical performance of the whole lithium ion battery.
Lithium ion battery electrolytes have strict requirements on moisture, hydrofluoric acid content and chromaticity. When the electrolyte with high water content is applied to the production of the lithium ion battery, the problems of battery gas expansion and the like can be caused, and the service life and the safety of the battery are seriously influenced; when the electrolyte with high hydrofluoric acid content is used for the lithium ion battery, the hydrofluoric acid can corrode a battery pole piece, so that the pole piece is damaged and a current collector is corroded, and various performances of the battery are influenced; the discolored electrolyte generally generates a part of impurities in the surface electrolyte, and the impurities may have influence on the performance of the battery. Thus, commercial electrolyte products generally require moisture levels of less than 20ppm, free acid levels of less than 50ppm, and color levels of less than 50 (Hazen).
The main factor influencing the moisture and hydrofluoric acid content of the electrolyte is the environment in contact with the electrolyte, and particularly, strict requirements are imposed on the temperature, the humidity and the oxygen content of the electrolyte. This is because lithium hexafluorophosphate in the electrolyte reacts to form hydrofluoric acid when encountering a trace amount of moisture, resulting in an increase in free acid; under a high-temperature environment, lithium hexafluorophosphate in the electrolyte is also decomposed by heating, so that the free acid is increased; in an environment with high oxygen content, some components in the electrolyte may react with oxygen to generate part of impurities to cause the electrolyte to change color. Therefore, the stainless steel barrel for storing the electrolyte is generally filled with high-purity nitrogen to prevent moisture from entering; meanwhile, the electrolyte is required to be stored in a shady and cool place with the temperature of less than 28 ℃, and more special electrolyte products need to be stored in an environment with the temperature of less than 10 ℃.
In order to trace back the quality of electrolyte products, a common manufacturer keeps samples of products in each batch, and the samples are contained in aluminum bottles or polyethylene bottles and placed in a shade; because the sample amount is more, and the storage period is up to half a year, the sample that is deposited in the container often has the entering of moisture and the rising of hydrofluoric acid content because of the change of external environment humiture, even produces the discoloration phenomenon.
Disclosure of Invention
In order to solve the problem, the utility model provides a nitrogen cabinet which can control the environment temperature and humidity and the oxygen content and can store the lithium ion battery electrolyte sample for a long time.
The technical scheme of the utility model:
a nitrogen cabinet capable of storing lithium ion battery electrolyte samples for a long time comprises a cabinet body, a cooling system and a ventilation system; the cabinet body is internally divided into a plurality of chambers by a pore plate, a plurality of cabinet doors are arranged in front of the cabinet body, and the cabinet doors are in sealing contact with the cabinet body and are respectively connected with the chambers in a one-to-one correspondence manner; the cooling system comprises cooling pipes, the cooling pipes are distributed on the two side faces and the back face of the cabinet body in a snake-shaped arrangement mode, one end of each cooling pipe is a cooling water inlet, the other end of each cooling pipe is a cooling water outlet, and a heat insulation layer is wrapped on each cooling pipe; the ventilation system comprises a vacuumizing port and a nitrogen inlet, wherein the vacuumizing port and the nitrogen inlet are respectively arranged on the cabinet body and communicated with the inner cavity of the cabinet body, a front-end purification column is installed on the vacuumizing port, and a rear-end adsorption column is installed on the nitrogen inlet.
Air in the cabinet body is exhausted through the vacuumizing port, and high-purity nitrogen is filled from the nitrogen inlet to form a low-oxygen low-humidity temperature control space, so that the control of the environment temperature, humidity and oxygen content in the cabinet body is realized; circulating cooling water is filled in the cooling pipe, so that the environmental temperature control in the cabinet body is realized; the design of the heat-insulating layer effectively ensures the cooling effect of the cooling pipe; the front end and the rear end adsorption columns are used for purifying the related environment.
The technical scheme is further improved and refined, the front-end purifying column comprises a stainless steel column body, one end of the column body is provided with an inlet, the other end of the column body is provided with an outlet, and the column body is filled with activated carbon; for adsorbing the organic solvent volatilized from the electrolyte.
The technical scheme is further improved and refined, the rear-end adsorption column comprises a stainless steel column body, one end of the column body is provided with an inlet, the other end of the column body is provided with an outlet, and a molecular sieve and a copper catalyst are filled in the column body; the device is used for purifying water and oxygen in nitrogen, and ensures that the relative humidity in the nitrogen cabinet is less than 5 percent and the oxygen content is less than 3 percent.
The technical scheme is further improved and refined, and the outer side of the heat-insulating layer is covered with a stainless steel outer wall; and (5) stabilizing the heat-insulating layer.
The technical scheme is further improved and refined, and the heat-insulating layer is made of polyurethane or rock wool.
The technical scheme is further improved and refined, the cabinet body is made of 304 or 316 stainless steel, and the inner wall of the cabinet body is coated with antistatic paint;
the technical scheme is further improved and refined, the diameter of the opening of the pore plate is 5mm-50mm, the distance between the openings is 10mm-50mm, so that the military training of nitrogen in the cabinet body can be conveniently dispersed, the material is 304 or 316 stainless steel, and the exterior of the pore plate is coated with antistatic paint to prevent electrolyte corrosion and fire.
The technical scheme is further improved and refined, and the chambers are uniformly distributed from top to bottom; the cabinet door is to opening the door, installs the silica gel sealing washer between the door and the cabinet body, is equipped with the handle on the door.
The technical scheme is further improved and refined, and the nitrogen cabinet also comprises a numerical control system; the numerical control system comprises a touch display panel, a controller and a plurality of sensors, wherein the sensors comprise a pressure sensor, a temperature and humidity sensor and an oxygen content sensor; the touch display panel, the controller and the sensor are all arranged on the cabinet body, and the controller is electrically connected with the touch display panel and the sensor respectively; the controller is respectively connected with the control valves arranged on the nitrogen inlet and the cooling water inlet in a control way; so that information such as pressure, temperature and humidity, oxygen content can be displayed on equipment in real time, control parameters are adjusted, and the controller can control related control valves to control the nitrogen and cooling water inflow after receiving an operation instruction, so that the pressure and the temperature in the cabinet body can be adjusted, and the safety and the control temperature are ensured to be in a reasonable range.
The technical scheme is further improved and refined, the cabinet body is of a cuboid structure, and the lower part of the cabinet body is provided with a braking roller; to facilitate movement of the device.
The utility model has the advantages of, reasonable in design thinks about ingeniously, can internal environment humiture, oxygen content of switch board to can show pressure, humiture and oxygen content in real time, provide good storage environment for the long-term storage of lithium ion battery electrolyte sample, can provide strong support for the quality backtracking of electrolyte product.
Drawings
Fig. 1 is a schematic structural diagram of a nitrogen gas tank capable of storing electrolyte samples of lithium ion batteries for a long time.
In the figure, a cabinet body 1, a cooling water inlet 2, a cooling pipe 3, a cooling water outlet 4, a heat preservation layer 5, an outer wall 6, a nitrogen inlet 7, a vacuumizing port 8, a purifying column 9, an adsorption column 10, a cabinet door 11, a handle 12, a pore plate 13, a pressure sensor 14, a temperature and humidity sensor 15, an oxygen content sensor 16, a controller 17, a touch display panel 18 and a brake roller 19 are arranged.
Detailed Description
As shown in the figure, the nitrogen gas cabinet capable of storing the lithium ion battery electrolyte sample for a long time comprises a cabinet body 1, a cooling system and a ventilation system; the cabinet body 1 is of a cuboid structure, an inner cavity of the cabinet body 1 is divided into a plurality of chambers through a pore plate 13, the chambers are uniformly distributed from top to bottom, a plurality of cabinet doors 11 are arranged in front of the cabinet body 1, the cabinet doors 11 are respectively connected with the chambers in a one-to-one correspondence manner, the cabinet doors 11 are split doors, a silica gel sealing ring is arranged between each door and the cabinet body 1, and a handle 12 is arranged on each door; the cooling system comprises cooling pipes 3, the cooling pipes 3 are distributed on two side faces and the back face of the cabinet body 1 in a snake-shaped arrangement mode, one end of each cooling pipe 3 is a cooling water inlet 2, the other end of each cooling pipe 3 is a cooling water outlet 4, and a heat-insulating layer 5 is wrapped on each cooling pipe 3; the ventilation system comprises a vacuumizing port 8 and a nitrogen inlet 7, the vacuumizing port 8 and the nitrogen inlet 7 are respectively arranged on the cabinet body 1 and communicated with the inner cavity of the cabinet body 1, a front-end purifying column 9 is arranged on the vacuumizing port 8, and a rear-end adsorbing column 10 is arranged on the nitrogen inlet 7; the front end purifying column 9 comprises a stainless steel column body, one end of the column body is provided with an inlet, the other end of the column body is provided with an outlet, and the column body is filled with active carbon; for adsorbing organic solvent volatilized from the electrolyte; the rear-end adsorption column 10 comprises a stainless steel column body, one end of the column body is provided with an inlet, the other end of the column body is provided with an outlet, and a molecular sieve and a copper catalyst are filled in the column body; the device is used for purifying water and oxygen in nitrogen, and ensures that the relative humidity in the nitrogen cabinet is less than 5 percent and the oxygen content is less than 3 percent; the outer side of the heat-insulating layer 5 is also covered with a stainless steel outer wall 6; stabilizing the heat-insulating layer; the heat insulation layer 5 is made of polyurethane or rock wool; the cabinet body 1 is made of 304 or 316 stainless steel, and the inner wall of the cabinet body is coated with antistatic paint; the diameter of the opening of the pore plate 13 is 5mm-50mm, the hole distance is 10mm-50mm, so that the military training of nitrogen in the cabinet body can be conveniently dispersed, the material is 304 or 316 stainless steel, and the exterior of the cabinet body is coated with antistatic paint to prevent electrolyte corrosion and fire; the nitrogen cabinet also comprises a numerical control system; the numerical control system comprises a touch display panel 18, a controller 17 and a plurality of sensors, wherein the sensors comprise a pressure sensor 14, a temperature and humidity sensor 15 and an oxygen content sensor 16; the touch display panel 18, the controller 17 and the sensor are all mounted on the cabinet body, and the controller 17 is electrically connected with the touch display panel 18 and the sensor respectively; the controller 17 is respectively connected with the control valves arranged on the nitrogen inlet 7 and the cooling water inlet 2 in a control way; the lower part of the cabinet body 1 is provided with a brake roller 19; to facilitate movement of the device.
The above disclosure is only for the preferred embodiment of the present invention, but not intended to limit itself, and any changes and modifications made by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A nitrogen cabinet capable of storing lithium ion battery electrolyte samples for a long time is characterized by comprising a cabinet body, a cooling system and a ventilation system; the cabinet body is internally divided into a plurality of chambers by a pore plate, a plurality of cabinet doors are arranged in front of the cabinet body, and the cabinet doors are in sealing contact with the cabinet body and are respectively connected with the chambers in a one-to-one correspondence manner; the cooling system comprises cooling pipes, the cooling pipes are distributed on the two side faces and the back face of the cabinet body in a snake-shaped arrangement mode, one end of each cooling pipe is a cooling water inlet, the other end of each cooling pipe is a cooling water outlet, and a heat insulation layer is wrapped on each cooling pipe; the ventilation system comprises a vacuumizing port and a nitrogen inlet, wherein the vacuumizing port and the nitrogen inlet are respectively arranged on the cabinet body and communicated with the inner cavity of the cabinet body, a front-end purification column is installed on the vacuumizing port, and a rear-end adsorption column is installed on the nitrogen inlet.
2. The nitrogen gas holder capable of storing lithium ion battery electrolyte samples for a long time according to claim 1, wherein the front purification column comprises a stainless steel column, one end of the column is provided with an inlet, the other end of the column is provided with an outlet, and activated carbon is filled in the column.
3. The nitrogen gas holder capable of storing lithium ion battery electrolyte samples for a long time according to claim 1, wherein the rear-end adsorption column comprises a stainless steel column, one end of the column is provided with an inlet, the other end of the column is provided with an outlet, and a molecular sieve and a copper catalyst are filled in the column.
4. The nitrogen cabinet capable of storing lithium ion battery electrolyte samples for a long time according to claim 1, wherein a stainless steel outer wall is covered and arranged on the outer side of the insulating layer.
5. The nitrogen gas holder capable of storing lithium ion battery electrolyte samples for a long time according to claim 1, wherein the insulating layer is made of polyurethane or rock wool.
6. The nitrogen cabinet capable of storing lithium ion battery electrolyte samples for a long time according to claim 1, wherein the cabinet body is made of 304 or 316 stainless steel, and the inner wall of the cabinet body is coated with antistatic paint.
7. The nitrogen gas holder capable of storing lithium ion battery electrolyte samples for a long time according to claim 1, wherein the diameter of the opening of the pore plate is 5mm-50mm, the distance between the pores is 10mm-50mm, the material is 304 or 316 stainless steel, and the exterior of the pore plate is coated with antistatic paint.
8. The nitrogen gas holder capable of storing lithium ion battery electrolyte samples for a long time according to claim 1, wherein the chambers are uniformly distributed from top to bottom; the cabinet door is to opening the door, installs the silica gel sealing washer between the door and the cabinet body, is equipped with the handle on the door.
9. The nitrogen gas cabinet capable of storing lithium ion battery electrolyte samples for a long time according to claim 1, characterized in that the nitrogen gas cabinet further comprises a numerical control system; the numerical control system comprises a touch display panel, a controller and a plurality of sensors, wherein the sensors comprise a pressure sensor, a temperature and humidity sensor and an oxygen content sensor; the touch display panel, the controller and the sensor are all arranged on the cabinet body, and the controller is electrically connected with the touch display panel and the sensor respectively; the controller is respectively connected with the control valves arranged on the nitrogen inlet and the cooling water inlet in a control mode.
10. The nitrogen cabinet capable of storing lithium ion battery electrolyte samples for a long time according to claim 1, wherein the cabinet body is of a cuboid structure, and a brake roller is arranged at the lower part of the cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920759168.9U CN210235902U (en) | 2019-05-24 | 2019-05-24 | Nitrogen cabinet capable of storing lithium ion battery electrolyte sample for long time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920759168.9U CN210235902U (en) | 2019-05-24 | 2019-05-24 | Nitrogen cabinet capable of storing lithium ion battery electrolyte sample for long time |
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| Publication Number | Publication Date |
|---|---|
| CN210235902U true CN210235902U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920759168.9U Active CN210235902U (en) | 2019-05-24 | 2019-05-24 | Nitrogen cabinet capable of storing lithium ion battery electrolyte sample for long time |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117699266A (en) * | 2024-02-05 | 2024-03-15 | 天星先进材料科技(江苏)有限公司 | Intelligent storage barrel for lithium battery |
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2019
- 2019-05-24 CN CN201920759168.9U patent/CN210235902U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117699266A (en) * | 2024-02-05 | 2024-03-15 | 天星先进材料科技(江苏)有限公司 | Intelligent storage barrel for lithium battery |
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Effective date of registration: 20240726 Address after: 236000 No.1 Shaying Road, Zhoupeng Street, Yingquan District, Fuyang City, Anhui Province Patentee after: Fuyang longneng Technology Co.,Ltd. Country or region after: China Address before: 169 Huashi North Road, Chengbei street, Rugao City, Nantong City, Jiangsu Province Patentee before: Longneng Technology (Nantong) Co.,Ltd. Country or region before: China |