CN113571838A - Small-scale white mineral oil circulation heating system and method in lithium battery diaphragm production - Google Patents
Small-scale white mineral oil circulation heating system and method in lithium battery diaphragm production Download PDFInfo
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- CN113571838A CN113571838A CN202110875424.2A CN202110875424A CN113571838A CN 113571838 A CN113571838 A CN 113571838A CN 202110875424 A CN202110875424 A CN 202110875424A CN 113571838 A CN113571838 A CN 113571838A
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- Prior art keywords
- mineral oil
- white mineral
- heating
- controller
- lithium battery
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 131
- 239000002480 mineral oil Substances 0.000 title claims abstract description 80
- 235000010446 mineral oil Nutrition 0.000 title claims abstract description 79
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 56
- 239000000110 cooling liquid Substances 0.000 claims abstract description 30
- 239000011229 interlayer Substances 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 13
- 239000002826 coolant Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 6
- 239000002609 medium Substances 0.000 claims 1
- 239000013587 production medium Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a white mineral oil circulation heating system and a white mineral oil circulation heating method for small trials in lithium battery diaphragm production, wherein the system comprises the following components: the heating device comprises a heating tank, a heating rod and a controller, wherein the heating rod heats white mineral oil in the heating tank, the top of the heating tank is provided with a stirring motor, and the stirring motor drives a stirring paddle in the heating tank; the heating tank is of a double-layer structure, the hollow part is a spiral cooling liquid interlayer, cooling liquid is controlled to circulate in the cooling liquid interlayer through the mold temperature controller, and the controller can control stirring speed, heating temperature, heating time and heating speed.
Description
Technical Field
The invention belongs to the field of production and preparation of lithium battery diaphragms, and particularly relates to a white mineral oil circulating heating system and method for small trials in lithium battery diaphragm production.
Background
In the production process of the lithium battery diaphragm, more and more old white mineral oil can be produced, the influence of the white mineral oil with different recycling time and different temperatures on the performance of the diaphragm can be different in the recycling process, according to the prior art, the circulating white mineral oil can not be fully utilized under the conditions of circulating time and temperature, and the circulating white mineral oil needs to be determined by tests; the method has the advantages that special heating equipment is not arranged in a laboratory, cyclic heating under different conditions of the white mineral oil cannot be realized, and only after the diaphragm is produced on a production line, performance testing is carried out for researching the influence of the white mineral oil on the diaphragm performance after cyclic heating, and systematic research cannot be carried out on the influence of different old white mineral oils on the diaphragm performance.
In order to compensate for the fact that a laboratory does not have special heating equipment to carry out the old white mineral oil recycling test, the special circulating heating equipment is needed to circularly heat the old white mineral oil under different conditions to carry out the test.
Disclosure of Invention
The invention aims to provide a special circulating heating device for tests of influences of white mineral oil with different circulating use times and different temperatures on the performance of a diaphragm in a circulating use process.
In order to achieve the purpose, one of the technical schemes adopted by the invention is as follows: a white mineral oil circulation heating system for small trials in lithium battery diaphragm production comprises a heating tank, a heating rod and a controller; heating tank lower part installation heating rod, white mineral oil heat in the heating tank, the vertical division of heating tank bottom has the discharge gate, and the inclined division of heating tank upper portion has the feed inlet, and the inside vertical stirring rake of installing of heating tank is connected with the agitator motor of heating tank top centre position installation.
Furthermore, the stirring motor is a variable frequency motor, the rotating speed of the stirring motor is adjustable within the range of 0-100 r/min, and the stirring motor is connected with the controller through a control line.
Furthermore, a temperature measuring device is installed on the side wall of the heating tank and connected with the controller through a connecting wire, and the temperature measuring device can feed the temperature of the white oil in the heating tank back to the controller.
Further, the stirring paddle is a spiral stirring paddle.
Further, the heating rod is connected with the controller through a control line, and the heating rod can heat the white mineral oil in the heating tank to any temperature within the range of 0-300 ℃.
Further, the controller controls the heating temperature, the heating time, the stirring speed and the heating speed of the whole system by controlling the heating rod and the stirring motor.
In order to achieve the purpose of the invention, the second technical scheme adopted by the invention is as follows: the method for utilizing the white mineral oil circulation heating system for the small test in the production of the lithium battery diaphragm comprises the following steps:
(a) adding the white mineral oil to be tested into a heating tank from a feeding hole, and operating a controller to control a stirring motor to drive a stirring paddle to stir the white mineral oil;
(b) the operation controller inputs the target temperature and time for heating the white mineral oil and controls the heating rod to heat the white mineral oil;
(c) after the white mineral oil is heated, stopping the operation of the heating rod and the stirring motor, standing and cooling until the temperature of the white mineral oil fed back by the temperature measuring device is reduced to a target temperature, and finishing the cooling process;
(d) and discharging the cooled white mineral oil from a discharge hole for the next test.
The third technical scheme adopted by the invention is as follows: a white mineral oil circulation heating system for small trials in lithium battery diaphragm production comprises a heating tank, a heating rod and a controller; heating tank lower part installation heating rod, white mineral oil heat in the heating tank, the vertical division of heating tank bottom has the discharge gate, and the inclined division of heating tank upper portion has the feed inlet, and the inside vertical stirring rake of installing of heating tank is connected with the agitator motor of heating tank top centre position installation.
Further, the heating tank is of a double-layer structure and is provided with a cooling liquid interlayer, cooling liquid flows in the cooling liquid interlayer, the cooling liquid interlayer is a spiral interlayer, a cooling liquid inlet is horizontally formed in the upper left of the heating tank, a cooling liquid return port is horizontally formed in the lower right of the heating tank, and the cooling liquid inlet and the cooling liquid return port are connected with the mold temperature controller to ensure that the cooling liquid can circulate in the cooling liquid interlayer.
Further, the mold temperature controller can control the temperature of the cooling liquid within the range of 0-100 ℃.
Furthermore, the stirring motor is a variable frequency motor, the rotating speed of the stirring motor is adjustable within the range of 0-100 r/min, and the stirring motor is connected with the controller through a control line.
Furthermore, a temperature measuring device is installed on the side wall of the heating tank and connected with the controller through a connecting wire, and the temperature measuring device can feed the temperature of the white oil in the heating tank back to the controller.
Further, the stirring paddle is a spiral stirring paddle.
Further, the heating rod is connected with the controller through a control line, and the heating rod can heat the white mineral oil in the heating tank to any temperature within the range of 0-300 ℃.
Further, the controller controls the heating temperature, the heating time, the stirring speed and the heating speed of the whole system by controlling the heating rod and the stirring motor.
In order to achieve the purpose of the invention, the fourth technical scheme adopted by the invention is as follows: the method for utilizing the white mineral oil circulation heating system for the small test in the production of the lithium battery diaphragm comprises the following steps:
(a) adding the white mineral oil to be tested into a heating tank from a feeding hole, and operating a controller to control a stirring motor to drive a stirring paddle to stir the white mineral oil;
(b) the operation controller inputs the target temperature and time for heating the white mineral oil and controls the heating rod to heat the white mineral oil;
(c) after the white mineral oil is heated, stopping the heating rod and the stirring motor, operating the mold temperature controller to input a target temperature and cooling time, cooling the heated white mineral oil by using the mold temperature controller circulating cooling liquid until the temperature of the white mineral oil is reduced to the target temperature, and finishing the cooling process;
(d) and discharging the cooled white mineral oil from a discharge hole for the next test.
The invention has the beneficial effects that: according to the white mineral oil circulation heating system and method for the lithium battery diaphragm, the influence of the white mineral oil on the diaphragm performance after circulation heating under different conditions can be intuitively researched, the problem that a test needs to be performed on a production line is solved, the experiment efficiency is improved, the cost is reduced, and resources are saved.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
The labels in the figure are: 1-heating tank, 2-feeding port, 3-discharging port, 4-stirring motor, 5-stirring paddle, 6-heating rod, 7-mould temperature machine, 8-cooling liquid interlayer, 9-controller, 10-cooling liquid inlet, 11-cooling liquid return port and 12-temperature measuring device.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example one
As shown in fig. 1, a white mineral oil circulation heating system for small trials in lithium battery diaphragm production includes:
heating tank 1: means for containing white mineral oil to be heated cyclically;
a heating rod 6: a device for providing heat to the white mineral oil to be heated circularly;
stirring paddles 5: means for agitating the white mineral oil;
a stirring motor 4: a device for driving the stirring paddle to rotate;
a mold temperature controller 7: means for circulating the cooling liquid and controlling the temperature of the cooling liquid;
the controller 9: and a device for controlling the stirring speed, the heating temperature, the heating time and the heating speed.
The heating rod 6 is arranged at the bottom of the heating tank 1, the heating rod 6 is connected with the controller 9 through a control line, and the controller 9 can control the heating temperature, the heating time and the heating speed of the heating rod 6; agitator motor 4 installs at 1 top centre position of heating jar, and agitator motor 4 drives vertical stirring rake 5 of installing in 1 inside of heating jar, and agitator motor 4 passes through the control line with controller 9 and is connected, and the stirring speed of agitator motor 4 can be controlled to controller 9.
In this embodiment, heating jar 1 is bilayer structure, and well kenozooecium is coolant liquid intermediate layer 8, and coolant liquid intermediate layer 8 is spiral intermediate layer, and coolant liquid inlet 10 and coolant liquid return port 11 of coolant liquid intermediate layer 8 all are connected with mould temperature machine 7, and mould temperature machine 7 makes the coolant liquid circulate in coolant liquid intermediate layer 8, and the cooling temperature and the cooling time of the coolant liquid that gets into coolant liquid intermediate layer 8 can be controlled to mould temperature machine 7.
Example two
The embodiment is a method for utilizing a white mineral oil circulation heating system for small trials in lithium battery diaphragm production in the first embodiment, and the method comprises the following steps:
(a) adding the white mineral oil to be tested into the heating tank 1 from the feeding hole 2, and operating the controller 9 to enable the stirring motor 4 to drive the stirring paddle 5 to stir the white mineral oil;
(b) the operation controller 9 inputs the target temperature and time for heating the white mineral oil, so that the heating rod 6 heats the white mineral oil;
(c) after the white mineral oil is heated, the heating rod 6 and the stirring motor 4 stop working, the mold temperature controller 7 is operated to input the target temperature and the cooling time, the mold temperature controller 7 circulates cooling liquid to cool the heated white mineral oil until the temperature of the white mineral oil is reduced to the target temperature, and the cooling process is finished;
(d) the cooled white mineral oil was discharged from the discharge port 3 for the next test.
The foregoing has described the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by using equivalent substitution methods fall within the scope of the present invention.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (10)
1. The utility model provides a white mineral oil circulation heating system for small usefulness in lithium battery diaphragm production which characterized in that includes: heating jar (1) and controller (9), heating rod (6) are installed to heating jar (1) lower part, and heating rod (6) are connected through the connecting wire with controller (9).
2. The white mineral oil circulation heating system for the middle and small trials in the production of lithium battery diaphragms as claimed in claim 1, wherein the stirring motor (4) is installed at the center of the top of the heating tank (1), the stirring motor (4) is connected with the controller (9) through a connecting wire, and the rotating speed of the stirring motor (4) is adjustable within the range of 0-100 r/min for a variable frequency motor.
3. The white mineral oil circulation heating system for the middle and small trials in the production of lithium battery separators as claimed in claim 2, wherein a stirring paddle (5) is vertically installed in the heating tank (1), the stirring paddle (5) is connected with a stirring motor (4) at the top of the heating tank (1), and the stirring paddle (5) is a spiral stirring paddle.
4. The white mineral oil circulation heating system for the middle and small trials in the production of lithium battery separators as claimed in claim 1 or 2, wherein a temperature measuring device (12) is installed on the side wall of the heating tank (1), the temperature measuring device (12) is connected with the controller (9) through a connecting wire, a feeding hole (2) is obliquely formed in the upper part of the heating tank (1), and a discharging hole (3) is vertically formed in the bottom of the heating tank (1).
5. The white mineral oil circulation heating system for the small-scale use in the production of lithium battery separators as claimed in claim 1, wherein the heating rod (6) can heat the white mineral oil to any temperature within the range of 0-300 ℃.
6. The white mineral oil circulation heating system for the small-scale test in the production of lithium battery diaphragms as claimed in claim 1, wherein the heating tank (1) is of a double-layer structure and is provided with a cooling liquid interlayer (8), and the cooling liquid interlayer (8) is a spiral type interlayer which can allow a cooling medium or a heating medium to flow in the cooling liquid interlayer (8).
7. The white mineral oil circulation heating system for the middle and small trials in the production of lithium battery separators as claimed in claim 6, wherein a cooling liquid inlet (10) is horizontally arranged at the upper left of the heating tank, a cooling liquid return port (11) is horizontally arranged at the lower right of the heating tank (1), and both the cooling liquid inlet (10) and the cooling liquid return port (11) are connected with the mold temperature controller (7).
8. The white mineral oil circulation heating system for the lithium battery separator production medium and small trials in claim 7 is characterized in that the mold temperature controller (7) can control the temperature of the cooling liquid in the range of 0-100 ℃.
9. A method for utilizing the white mineral oil circulation heating system for the small test in the production of the lithium battery diaphragm in any one of claims 1 to 5, which is characterized by comprising the following steps:
(a) adding white mineral oil to be tested into the heating tank (1) from the feeding hole (2), and operating the controller (9) to control the stirring motor (4) to drive the stirring paddle (5) to stir the white mineral oil;
(b) the operation controller (9) inputs the target temperature and time for heating the white mineral oil and controls the heating rod (6) to heat the white mineral oil;
(c) after the white mineral oil is heated, stopping the heating rod (6) and the stirring motor (4) from working, standing and cooling until the temperature of the white mineral oil fed back by the temperature measuring device (12) is reduced to a target temperature, and finishing the cooling process;
(d) and discharging the cooled white mineral oil from a discharge hole (3) for the next test.
10. A method for utilizing the white mineral oil circulation heating system for the small test in the production of the lithium battery diaphragm in any one of claims 6 to 8, which is characterized by comprising the following steps:
(a) adding white mineral oil to be tested into the heating tank (1) from the feeding hole (2), and operating the controller (9) to control the stirring motor (4) to drive the stirring paddle (5) to stir the white mineral oil;
(b) the operation controller (9) inputs the target temperature and time for heating the white mineral oil and controls the heating rod (6) to heat the white mineral oil;
(c) after the white mineral oil is heated, the heating rod (6) and the stirring motor (4) stop working, the mold temperature controller (7) is operated to input target temperature and cooling time, the mold temperature controller (7) circulates cooling liquid to cool the heated white mineral oil until the temperature of the white mineral oil is reduced to the target temperature, and the cooling process is finished;
(d) and discharging the cooled white mineral oil from a discharge hole (3) for the next test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110875424.2A CN113571838A (en) | 2021-07-30 | 2021-07-30 | Small-scale white mineral oil circulation heating system and method in lithium battery diaphragm production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110875424.2A CN113571838A (en) | 2021-07-30 | 2021-07-30 | Small-scale white mineral oil circulation heating system and method in lithium battery diaphragm production |
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| Publication Number | Publication Date |
|---|---|
| CN113571838A true CN113571838A (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110875424.2A Pending CN113571838A (en) | 2021-07-30 | 2021-07-30 | Small-scale white mineral oil circulation heating system and method in lithium battery diaphragm production |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929095A (en) * | 2017-01-24 | 2017-07-07 | 玉门市润泽环保再生能源新技术有限公司 | A kind of waste mineral oil processing method |
| CN110762843A (en) * | 2019-11-11 | 2020-02-07 | 中材锂膜有限公司 | Wet method lithium battery diaphragm white oil heating device |
| CN111617724A (en) * | 2020-06-30 | 2020-09-04 | 江苏跃华石化工程有限公司 | Reaction kettle with built-in cooling and heating functions |
| CN212215517U (en) * | 2020-07-24 | 2020-12-25 | 江苏宏梓新能源科技有限公司 | Energy-saving reaction kettle for producing sodium borohydride |
| CN212237313U (en) * | 2020-07-24 | 2020-12-29 | 江苏宏梓新能源科技有限公司 | Reaction kettle for producing sodium borohydride |
| CN213376477U (en) * | 2020-09-28 | 2021-06-08 | 宜昌七朵云再生资源有限公司 | Waste mineral oil heating and stirring barrel |
| CN213610991U (en) * | 2020-08-31 | 2021-07-06 | 山东省溯源绿色化工研究院 | Controllable fire retardant production agitating unit of temperature |
-
2021
- 2021-07-30 CN CN202110875424.2A patent/CN113571838A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929095A (en) * | 2017-01-24 | 2017-07-07 | 玉门市润泽环保再生能源新技术有限公司 | A kind of waste mineral oil processing method |
| CN110762843A (en) * | 2019-11-11 | 2020-02-07 | 中材锂膜有限公司 | Wet method lithium battery diaphragm white oil heating device |
| CN111617724A (en) * | 2020-06-30 | 2020-09-04 | 江苏跃华石化工程有限公司 | Reaction kettle with built-in cooling and heating functions |
| CN212215517U (en) * | 2020-07-24 | 2020-12-25 | 江苏宏梓新能源科技有限公司 | Energy-saving reaction kettle for producing sodium borohydride |
| CN212237313U (en) * | 2020-07-24 | 2020-12-29 | 江苏宏梓新能源科技有限公司 | Reaction kettle for producing sodium borohydride |
| CN213610991U (en) * | 2020-08-31 | 2021-07-06 | 山东省溯源绿色化工研究院 | Controllable fire retardant production agitating unit of temperature |
| CN213376477U (en) * | 2020-09-28 | 2021-06-08 | 宜昌七朵云再生资源有限公司 | Waste mineral oil heating and stirring barrel |
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Application publication date: 20211029 |
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