CN105180643B - Lithium battery drying frame, lithium battery drying device and the method for drying lithium battery - Google Patents
Lithium battery drying frame, lithium battery drying device and the method for drying lithium battery Download PDFInfo
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- CN105180643B CN105180643B CN201510606691.4A CN201510606691A CN105180643B CN 105180643 B CN105180643 B CN 105180643B CN 201510606691 A CN201510606691 A CN 201510606691A CN 105180643 B CN105180643 B CN 105180643B
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Abstract
The present invention relates to a kind of lithium battery drying frame, lithium battery drying device and the method for drying lithium battery, belong to technical field of lithium ion.The lithium battery drying frame of the present invention includes drying frame body, the drying frame body includes the drying frame crossbeam extended along the longitudinal direction and is fixedly installed on drying frame crossbeam side or both sides and the battery tray extended in left-right direction, the position-limit mechanism for being fixedly installed in the vacuum-pumping pipeline being tightly connected for the bleeding point with battery, the battery tray and being in the state that is tightly connected with vacuum-pumping pipeline for being maintained at battery is fixedly installed on the drying frame crossbeam.The lithium battery drying frame of the present invention improves the drying efficiency of lithium battery, reduces production cost.
Description
Technical field
The present invention relates to a kind of lithium battery drying frame, lithium battery drying device and dry lithium battery method, belong to lithium from
Sub- cell art.
Background technology
In recent years, in the extension process of green energy resource, lithium ion battery is with its high-energy-density, high voltage, to environment
The advantage such as pollution-free and be developed rapidly.With the expansion of lithium ion battery applications scope, each application field is to lithium ion
The cycle life and security of battery are proposed higher requirement.Influence cycle life of lithium ion battery and security it is all
In multifactor, moisture is one of most important of which influence factor.There is moisture inside lithium-ion battery system, then can cause electricity
Solve liquid decomposition, Li dendrite and water reaction and release the consequences such as imflammable gas, directly result in the material structure of lithium-ion battery system
Generation deteriorates and reduces its cycle performance, and serious also can result in the serious safety concerns such as blast.
Therefore, the moisture inside control lithium-ion battery system is the important mesh of lithium ion battery manufacture process control
Mark.In lithium ion battery production process, battery is before filling electrolyte, it is necessary to be thermally dried the battery core in battery,
To reduce battery core internal moisture content, it is to avoid side reaction occurs for electrolyte and water after fluid injection, influence battery cycle performance and
Security.
Lithium ion battery moisture drying equipment of the prior art is usually a seal case, and battery core is entered to the electricity after shell
Pond is put into seal case, then to being heated in casing and vacuum pumping.But, this mode is needed in certain temperature
Under under vacuum conditions could be by moisture removal to requiring content after last longer.Reason is, after vacuumizing, box house
Lack heat-conduction medium under vacuum conditions, battery can not be heated effectively, internal temperature of battery rising is extremely slow, sternly
Moisture drying efficiency is reduced again.Especially for high capacity lithium ion battery, generally, drying time need 50 hours with
On, production efficiency has been had a strong impact on, production cost is also increased.
To solve the problem of internal temperature of battery rises slow under vacuum state in such scheme, there is use in the prior art
In the drying process with hot nitrogen displacement and the mode of vacuum pumping alternately, using the air in nitrogen displacement casing,
Nitrogen is as heat transfer medium simultaneously, to improve the efficiency of heating surface.Publication No. CN104567292A Chinese invention patent (publication date
For on December 25th, 2014) disclose a kind of electrokinetic cell vacuum dryer, including furnace chamber, the fortune wind system that is connected with furnace chamber
System, its furnace chamber includes mica sheet, and it, which transports wind system, includes vacuum lead, nitrogen intake stack.Mica sheet is used in furnace chamber
Heated, vacuum lead is used for being vacuumized in furnace chamber, while being passed through nitrogen into furnace chamber by nitrogen intake stack
Gas, the moisture in furnace chamber is taken out of, and ensures there is sufficient heat-conducting gas medium in furnace chamber.This mode is imitated to drying for battery
Rate increases.But, it is generally the case that it is smaller with the extraneous mouth communicated in battery case, the moisture vaporized in battery be difficult from
In battery out, drying efficiency is still relatively low, and this mode is cumbersome, and the amount for expending nitrogen is larger, improves indirectly
The production cost of battery.
The content of the invention
It is an object of the invention to provide a kind of high lithium battery drying frame of drying efficiency.The present invention also aims to carry
The method that lithium battery is dried for the lithium battery drying device using above-mentioned lithium battery drying frame and using the lithium battery drying device.
In order to realize the above object the technical scheme of the lithium battery drying frame of the present invention is as follows:
Be fixedly installed on a kind of lithium battery drying frame, including drying frame body, the drying frame body for battery
The vacuum-pumping pipeline that is tightly connected of bleeding point, be further fixedly arranged on for making battery be maintained at and take out on the drying frame body
Vacuum line is in the position-limit mechanism for the state that is tightly connected.
The drying frame body includes the drying frame crossbeam extended along the longitudinal direction and is fixedly installed on drying frame crossbeam
Side or both sides and the battery tray extended in left-right direction, the vacuum-pumping pipeline are used for one be connected with battery bleeding point
End is fixedly installed on the top surface of the drying frame crossbeam or side, and the position-limit mechanism is arranged in the battery tray.
The vacuum-pumping pipeline include vacuumizing main pipeline and it is more than two vacuumize branch pipe(tube), it is described to vacuumize branch pipe
Road one end is fixedly installed on the top surface of the drying frame crossbeam or side, and the other end is connected with the main pipeline that vacuumizes.
One end that the vacuum-pumping pipeline is used for being connected with battery bleeding point is connected with evacuation connection, described to vacuumize
Connector is tubular structure, and sealing bulge loop, the sealing bulge loop and battery are provided with the outer tube wall of the evacuation connection
Bleeding point inwall or opening's edge sealing coordinate.
Direction on the outer tube wall of the evacuation connection along battery bleeding point to vacuum-pumping pipeline is fixedly installed successively
There are the first sealing bulge loop and the second sealing bulge loop, the external diameter of the first sealing bulge loop is equal to the internal diameter of battery bleeding point, described
The external diameter of second sealing bulge loop is more than the internal diameter of battery bleeding point, and the second sealing bulge loop is towards on the side wall of battery bleeding point
It is fixedly installed and seals the sealing ring coordinated with battery bleeding point opening's edge.
The technical scheme of the lithium battery drying device of the present invention is as follows:
A kind of lithium battery drying device, including casing, the heating arrangements and lithium battery drying frame that are arranged in the casing,
The lithium battery drying frame is above-mentioned lithium battery drying frame.
The heating arrangements include the heat pipe and recycle gas blower structure being fixedly installed on the cabinet wall.
The drying frame body of the lithium battery drying frame coordinates with the cabinet wall guiding movement.
The technical scheme of the method for the drying lithium battery of the present invention is as follows:
A kind of method that lithium battery is dried using above-mentioned lithium battery drying device, is comprised the following steps:
1) battery bleeding point is tightly connected with the vacuum-pumping pipeline on the lithium battery drying frame, and by described spacing
Battery is fixed by mechanism;
2) the lithium battery drying frame is moved into the casing, vacuum-pumping pipeline be connected with vaccum-pumping equipment, by case
Body is sealed;
3) heating arrangements are opened, after case body temperature rises to design temperature, opening vaccum-pumping equipment will take out in battery
Vacuum is to setting vacuum.
The design temperature is 70-120 DEG C, and the setting vacuum is not more than -99kPa.Heat time and when vacuumizing
Between sum be 8-15h.
The lithium battery drying frame of the present invention is joined directly together by using by lithium battery with vacuum-pumping pipeline, by the gas in battery
Body moisture is extracted out, and is not influenceed by moisture in air in drying box, it is ensured that cell peripheral atmospheric pressure state, and is had and filled
The heat transfer medium of foot, stably can provide heat to battery container, and without nitrogen displacement air as heat transfer medium, also
The utilization rate of vacuum system is improved, cost is reduced.In addition, using the lithium battery drying frame of the present invention that lithium battery is true with taking out
After vacant duct is tightly connected and lithium battery is fixed on drying frame, realizes lithium battery to be measured and the quick of vacuum lead connects
Connect, and form vacuum-pumping pipeline in parallel, realize quick connection when lithium battery is dried, improve drying efficiency, greatly shorten
The time that battery is dried, lithium battery drying time shorten to 10 hours or so by original more than 50 hours.Particularly pair
When large-scale production, production efficiency can be increased substantially using the lithium battery drying frame of the present invention, shorten the production cycle, tool
There is significant economic benefit.
Further, lithium battery drying frame of the invention is coordinated by setting evacuation connection with battery limiting mechanism,
The bleeding point that ensure that vacuum-pumping pipeline and battery is accurate, rapid abutting joint, and improves sealing effectiveness, further increases lithium
The drying efficiency of battery.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the lithium battery drying device of the present invention;
Fig. 2 be Fig. 1 in heat-insulating and sealing casing structural representation;
Fig. 3 is Fig. 2 top view;
Fig. 4 is Fig. 2 front view;
Fig. 5 be Fig. 1 in battery moisture drying frame structural representation;
Fig. 6 is the evacuation connection and cell safety valve port annexation schematic diagram in Fig. 5;
Fig. 7 be Fig. 6 in evacuation connection sectional view;
Fig. 8 is the structural representation of the position-limit mechanism of another embodiment of the lithium battery drying device of the present invention.
Embodiment
The embodiment of the lithium battery drying device of the present invention:
As shown in figs. 1-7, lithium battery drying device of the invention includes being provided with heating in heat-insulating and sealing casing 10, casing
Mechanism and lithium battery drying frame 60, lithium battery drying frame include drying frame body, be fixedly installed on drying frame body for
It is further fixedly arranged on the vacuum-pumping pipeline that the bleeding point of battery is tightly connected, drying frame body for making battery be maintained at and take out
Vacuum line is in the position-limit mechanism for the state that is tightly connected.
Drying frame body includes drying layer frame, dries drying frame crossbeam 70 and battery that layer frame includes being fixed together
In pallet 80, the present embodiment, drying frame crossbeam is the rectangular box body extended along the longitudinal direction, the both sides of rectangular box body lower end
The battery tray with platy structure is welded to connect, battery tray is horizontally disposed with, extended in left-right direction, in other embodiment
In, battery tray can be provided only on the side of drying frame crossbeam.
Vacuum-pumping pipeline includes evacuation connection 90, vacuumizes branch pipe(tube) 110, vacuumizes main pipeline 100, vacuumizes branch
Pipeline is made up of hard material, such as metal or rigid plastics, vacuumizes branch pipe(tube) string and is located on drying frame beam side wall, and leads to
Cross nut to be fixed on drying frame beam side wall, the two ends for vacuumizing branch pipe(tube) is respectively at the rectangular of drying frame crossbeam
Body casing it is inside and outside.It is fixedly installed successively along the longitudinal direction on two side walls of drying frame crossbeam and multiple vacuumizes branch
Pipeline, is set using aforesaid way, and each vacuumizes one that branch pipe(tube) is in outside the rectangular box body of drying frame crossbeam
End is sealedly connected with evacuation connection, and the other end is tightly connected with vacuumizing main pipeline, makes to vacuumize the gas in branch pipe(tube)
It can import and vacuumize in main pipeline.Main pipeline is vacuumized for metal bellows or plastic tube, with vacuumizing branch pipe(tube) junction
With setting metal or rigid plastics air exhaust nozzle, the rubber or plastics vacuumized by being set in outside branch pipe(tube) and air exhaust nozzle is soft
Pipe is realized and is tightly connected.Vacuumize the sealing of main pipeline one end, top surface of the other end from rectangular box body one end of drying frame crossbeam
Stretch out and be fixed on the pumping end 101 for being formed on the top surface of drying frame crossbeam and vacuumizing main pipeline.
Drying frame body can include one layer of dry layer frame, can also include more than two layers of drying layer frame, the present embodiment
Include being welded to connect between three layers of dry layer frame, each layer of drying frame crossbeam or between battery tray.In lower floor
The pumping end for vacuumizing main pipeline in drying frame crossbeam in the drying frame crossbeam in upper strata with vacuumizing main pipeline sealing
Connection, makes the gas vacuumized in main pipeline the vacuumizing in main pipeline into upper strata of lower floor, the superiors vacuumize supervisor
The pumping end in road is connected with the exhaust tube of vaccum-pumping equipment 20.
Evacuation connection is tubular structure, and evacuation connection is on the outer tube wall of one end outside drying frame crossbeam
Direction along battery bleeding point to vacuum-pumping pipeline is fixedly installed the first sealing bulge loop 901 and the second sealing bulge loop 902 successively,
The external diameter of first sealing bulge loop is equal to the internal diameter of battery bleeding point so that after evacuation connection insertion battery bleeding point, and first
Bulge loop can make not relatively move between battery bleeding point and evacuation connection.The external diameter of second sealing bulge loop is more than electricity
The external diameter of pond bleeding point opening's edge, the second sealing bulge loop is close with battery bleeding point opening's edge towards being bonded with the side wall of battery bleeding point
Seal the elastic seal ring 903 coordinated.Evacuation connection is true with taking out by DN clips 904 with vacuumizing one end that branch pipe(tube) is connected
Empty branch pipe(tube) is realized and is tightly connected, it would however also be possible to employ following manner is realized and is tightly connected:Evacuation connection using metal or
Rigid plastics, with vacuumize one end that branch pipe(tube) is connected by rubber or plastic flexible pipe be respectively sleeved at evacuation connection and
The end realization for vacuumizing branch pipe(tube) is tightly connected, and one end insertion of evacuation connection can also be vacuumized to pair of branch pipe(tube)
Ying Duanzhong, and evacuation connection outer wall and vacuumize and set between branch pipe(tube) inwall sealing ring to realize to be tightly connected.
Position corresponding with each evacuation connection is both provided with spacing for being carried out to battery in battery tray
Groove, the groove constitutes the position-limit mechanism.Battery in the present embodiment is rectangular cell, and bleeding point is rectangular cell
Relief valve port.The width and length of groove in battery tray are consistent with the width and length of rectangular cell side, make battery side
Face be inserted into realizing in groove it is spacing, while setting the distance between groove and evacuation connection, it is ensured that relief valve port mouthful
Along can top pressure on the elastic seal ring of the second convex ring-side wall of sealing, realize close between evacuation connection and relief valve port
Envelope connection.
Heating arrangements include the heat pipe 30 being uniformly laid on heat-insulating and sealing cabinet wall and are arranged on casing rear wall
Recycle gas blower structure 40, heat pipe is heat pipe of the prior art, sets heating wire in such as stainless steel tube.Recycle gas blower structure includes
Blower motor and the fan being connected with blower motor, blower motor drive fan to rotate to be blast heating in casing, it is ensured that casing
The uniformity of internal temperature, is connected, it can be ensured that motor torque between blower motor and fan by magnet fluid sealing mode
Transmission, and the vacuum leakproofness of casing is not influenceed.Heat-insulating and sealing cabinet wall is also equipped with alumina silicate fibre material, with improve every
Thermal effect.Heat-insulating and sealing casing top is provided with hole, passes through for the exhaust tube 50 of vaccum-pumping equipment, the exhaust tube of vaccum-pumping equipment
Seal and coordinate between heat-insulating and sealing casing top.
The bottom of heat-insulating and sealing casing is provided with guide groove, and the lower end of drying frame body is provided with directive wheel 601, directive wheel
Guiding movement coordinates between guide groove, can be easily when lithium battery drying frame moves in and out heat-insulating and sealing casing
Push-in is pulled out.
In the other embodiment of the lithium battery drying device of the present invention, evacuation connection is perpendicular to drying frame crossbeam
Side string is located on drying frame beam side wall, and is fixed in by nut on drying frame beam side wall, makes to vacuumize connection
The two ends of part are respectively at the inside and outside of the rectangular box body of drying frame crossbeam, the rectangular box body in drying frame crossbeam
Internal one end, which is sealedly connected with, vacuumizes branch pipe(tube).Evacuation connection is metal or rigid plastics, vacuumizes branch pipe(tube)
For metal bellow or plastic tube.Multiple take out is fixedly installed successively along the longitudinal direction on two side walls of drying frame crossbeam
Vacuum connector, is set using aforesaid way.
In the other embodiment of the lithium battery drying device of the present invention, the drying frame body and casing of lithium battery drying frame
Side wall guiding movement coordinates, and passes through the guide rail being arranged on the battery tray side and heat-insulating and sealing wall box of drying frame body
Realize that guiding movement coordinates.
In the other embodiment of the lithium battery drying device of the present invention, the groove in battery tray is away from drying frame crossbeam
One end be provided with the spring extended towards drying frame crossbeam direction, spring one end is fixed on the side wall of groove, other end energy
Enough to being placed on elastic force of the battery generation therein towards drying frame crossbeam direction.Battery is put into after groove, the elastic force of spring
The better tightness of cell safety valve port and evacuation connection can be made, meanwhile, also it can make the length and width of groove not
It is restricted, it is adaptable to the battery of various sizes.
The present invention lithium battery drying device other embodiment in, as shown in figure 8, position-limit mechanism can also by
Battery clamp is fixedly installed in battery tray, by it is transportable step up side plate realize to battery step up fix.Battery folders
Tool includes fixed side 801, fixed bottom plate 802, clamps side plate 803 and thrust mechanism 804, when battery is placed in fixture first
By being placed on fixed side and fixed bottom plate, described clamping side plate can act carry out unified to battery simultaneously by thrust mechanism
Clamp, it is ensured that the uniformity of clamping, described thrust mechanism is by rectilinear movement of the threaded connection translating rotation for clamping side plate.
In the other embodiment of the lithium battery drying device of the present invention, the sealing bulge loop of evacuation connection only has one
Individual, the external diameter of sealing bulge loop is equal to or slightly less than the internal diameter of relief valve port, seals bonding on the outer peripheral face of bulge loop and is provided with one layer
Elastomeric material, after evacuation connection inserts the relief valve port of battery, the elastomeric material on sealing bulge loop can play sealing
Effect.
In the other embodiment of the lithium battery drying device of the present invention, evacuation connection and DN cards can be not provided with
Hoop, vacuumizes branch pipe(tube) and is directly tightly connected with cell safety valve port.It can also set and vacuumize branch pipe(tube) for rubber or modeling
After expecting that flexible pipe, the evacuation connection of flexible pipe one end connection are connected with cell safety valve port, battery can use relief valve port court
On mode be fixed in the groove in battery tray.
In above-described embodiment, heat pipe and recycle gas blower structure are used as heat transfer medium pair by the air in heat-insulating and sealing casing
Battery realize heating, in other embodiments, it is metal material that can set drying frame body, and by drying frame body with heat
Pipe is contacted, and realizes that the contact of drying frame body and battery is conducted heat.
The structure complete one of lithium battery drying frame in the embodiment and above-described embodiment of the lithium battery drying frame of the present invention
Cause, here is omitted.In addition, the various alternative forms of the lithium battery drying frame in above-described embodiment, may also apply to this
The embodiment of the lithium battery drying frame of invention.
The embodiment for the method that the above-mentioned lithium battery drying device of use of the present invention dries lithium battery comprises the following steps:
1) evacuation connection is first connected with the relief valve port of lithium battery, i.e., it is the first sealing of evacuation connection is convex
Ring insertion battery safety valve is intraoral, and matches somebody with somebody the opening's edge top pressure of elastic seal ring on the second sealing bulge loop and relief valve port
Close, it is ensured that sealing coordinates therebetween, is then tightly connected evacuation connection with vacuumizing branch pipe(tube), then by lithium ion
It is fixed in groove in side one end insertion battery tray of battery;
2) after the completion for the treatment of that the lithium battery of each layer is connected with lithium battery drying frame, by lithium battery drying frame by directive wheel and every
The guide groove guiding movement of heat seal bottom half closely enters in heat-insulating and sealing casing, and the superiors on drying frame body are vacuumized
The exhaust tube for the vaccum-pumping equipment that main pipeline is located at heat-insulating and sealing casing top with string is tightly connected, and is then shut off heat-insulating and sealing case
Body is sealed against, and the vaccum-pumping equipment in the present embodiment is vavuum pump;
3) open vavuum pump and start forvacuum, when vacuum reaches -90kPa, close vavuum pump, utilize dry gas
Pressure release is carried out to -10kPa black vacuum state, to remove the original gas moisture of internal system, heating arrangements are then turned on
Power supply, makes the heat pipe and recycle gas blower structure that are arranged on heat-insulating and sealing cabinet wall start working, rises in case body temperature
To after design temperature, -99.5kPa will be evacuated in battery by opening vavuum pump;The design temperature is 70-120 DEG C, from the beginning of
It is that design temperature is 105 DEG C in 8-15h, the present embodiment to be heated to vacuumize total drying time of completion, and total drying time is
12h。
After testing, the pole piece moisture in dried lithium battery is 460ppm.
The present invention use lithium battery drying device dry lithium battery method other embodiment in, step 3) in directly
Heating arrangements heating is opened, forvacuum is no longer carried out.
Claims (10)
1. a kind of lithium battery drying frame, it is characterised in that including drying frame body, the drying frame body is included along the longitudinal direction
The drying frame crossbeam of extension and it is fixedly installed on drying frame crossbeam side or both sides and the battery tray extended in left-right direction
The vacuum-pumping pipeline for being tightly connected with battery bleeding point, the battery tray are fixedly installed on disk, the drying frame crossbeam
The position-limit mechanism for being in the state that is tightly connected with vacuum-pumping pipeline for being maintained at battery is fixedly installed on disk.
2. lithium battery drying frame as claimed in claim 1, it is characterised in that the vacuum-pumping pipeline is used for and battery bleeding point
One end of connection is fixedly installed on the top surface of the drying frame crossbeam or side.
3. lithium battery drying frame as claimed in claim 2, it is characterised in that the vacuum-pumping pipeline includes vacuumizing main pipeline
Vacuumize branch pipe(tube) with more than two, it is described vacuumize branch pipe(tube) one end be fixedly installed on the drying frame crossbeam top surface or
On person side, the other end is connected with the main pipeline that vacuumizes.
4. lithium battery drying frame as claimed in claim 3, it is characterised in that the vacuum-pumping pipeline includes being connected to vacuumizing
Branch pipe(tube) one end for the evacuation connection that is connected with battery bleeding point, the evacuation connection is tubular structure, institute
State and sealing bulge loop is provided with the outer tube wall of evacuation connection, the sealing bulge loop and battery bleeding point inwall or opening's edge are close
Envelope coordinates.
5. lithium battery drying frame as claimed in claim 4, it is characterised in that along electricity on the outer tube wall of the evacuation connection
Pond bleeding point is fixedly installed the first sealing bulge loop and the second sealing bulge loop successively to the direction of vacuum-pumping pipeline, and described first is close
The external diameter for sealing bulge loop is equal to the internal diameter of battery bleeding point, and the external diameter of the second sealing bulge loop is more than the internal diameter of battery bleeding point,
The second sealing bulge loop seals coordinate close with battery bleeding point opening's edge towards being fixedly installed on the side wall of battery bleeding point
Seal.
6. a kind of lithium battery drying device, including casing, the heating arrangements and lithium battery drying frame that are arranged in the casing, its
It is characterised by, the lithium battery drying frame is the lithium battery drying frame as described in claim 1-4 any one.
7. lithium battery drying device as claimed in claim 6, it is characterised in that the heating arrangements include being fixedly installed on institute
State the heat pipe and recycle gas blower structure on cabinet wall.
8. lithium battery drying device as claimed in claim 6, it is characterised in that the drying frame body of the lithium battery drying frame
Coordinate with the cabinet wall guiding movement.
9. a kind of method that lithium battery is dried using lithium battery drying device as claimed in claim 6, it is characterised in that including
Following steps:
1) battery bleeding point is tightly connected with the vacuum-pumping pipeline on the lithium battery drying frame, and passes through the position-limit mechanism
Battery is fixed;
2) the lithium battery drying frame is moved into the casing, vacuum-pumping pipeline is connected with vaccum-pumping equipment, casing is close
Envelope;
3) heating arrangements are opened, after case body temperature rises to design temperature, opening vaccum-pumping equipment will vacuumize in battery
To setting vacuum.
10. the method for lithium battery is dried as claimed in claim 9, it is characterised in that the design temperature is 70-120 DEG C, institute
State setting vacuum and be not more than -99kPa.
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CN105823325A (en) * | 2016-03-29 | 2016-08-03 | 华中科技大学 | Compartment-type material platform for baking in vacuum tunnel kiln |
CN106568322B (en) * | 2016-10-19 | 2020-03-27 | 浙江超威创元实业有限公司 | Manufacturing method of battery and high-foot baking fence for manufacturing battery |
CN108679941A (en) * | 2018-06-15 | 2018-10-19 | 深圳市齐得隆电子有限公司 | A kind of novel lithium battery vacuum drying method and equipment |
US20220263058A1 (en) * | 2018-11-19 | 2022-08-18 | Lg Chem, Ltd. | Method of manufacturing the cylindrical battery, and drying apparatus for carrying out the same |
CN109631510B (en) * | 2018-11-26 | 2020-09-04 | 合肥国轩高科动力能源有限公司 | Contact baking equipment of lithium cell |
CN113465317B (en) * | 2021-07-28 | 2023-04-11 | 东莞市德瑞精密设备有限公司 | Drying apparatus |
CN114459216A (en) * | 2021-11-29 | 2022-05-10 | 湖南嘉园新能源科技有限公司 | Polar plate drying equipment for manufacturing lithium battery |
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CN102455118A (en) * | 2010-11-02 | 2012-05-16 | 楼瞻浩 | High-efficiency energy-saving rail type lithium battery oven |
CN202034432U (en) * | 2011-05-05 | 2011-11-09 | 中航锂电(洛阳)有限公司 | Lithium battery |
CN104142045B (en) * | 2013-07-11 | 2016-03-23 | 中航锂电(江苏)有限公司 | A kind of drying means of high-capacity lithium-ion power battery battery core |
DE102013016559A1 (en) * | 2013-09-27 | 2015-04-02 | M+W Germany GmbH | Drying room, especially for use in lithium-ion cell production |
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CN103367693A (en) * | 2013-07-23 | 2013-10-23 | 恒正科技(苏州)有限公司 | Drying and liquid injection system of lithium battery and drying and liquid injection method |
CN204648844U (en) * | 2015-05-05 | 2015-09-16 | 宁德时代新能源科技有限公司 | Secondary cell drying device |
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