CN104138828A - Electrode plate/battery cell dewatering and drying method and equipment - Google Patents

Electrode plate/battery cell dewatering and drying method and equipment Download PDF

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Publication number
CN104138828A
CN104138828A CN201310171155.7A CN201310171155A CN104138828A CN 104138828 A CN104138828 A CN 104138828A CN 201310171155 A CN201310171155 A CN 201310171155A CN 104138828 A CN104138828 A CN 104138828A
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air
battery
dry
inert gas
hurricane drier
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杨洪钧
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杨洪钧
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Abstract

Electrode plate/battery cell dewatering and drying equipment comprises a closed air drying chamber (1), a rotary dehumidifier (2) and a heating device (3). The air drying chamber, the rotary dehumidifier and the heating device are connected to form a closed loop structure through a pipeline. When the equipment operates, electrode plates/battery cells to be dried are disposed in the closed air drying chamber, and inert gas provided by an inert gas source (6) is fed to the air drying chamber after flowing to be heated to the required temperature by the heating device (3) through an inert gas input port (5); after flowing into the rotary dehumidifier to be dehumidified, the inert gas discharged from an exhaust port (11) of the air drying chamber is mixed with new inert gas inflowing from the inert gas input port, enters the heating device for heating and then flows into the air drying chamber to form circular flows. The electrode plate/battery cell dewatering and drying equipment has the advantages that baking time of the electrode plates/battery cells is greatly shortened to only 12-18 hours, electric energy is effectively saved, and production efficiency is improved. Besides, the electrode plate/battery cell dewatering and drying equipment is simple in structure, high in availability of unit volume and low in manufacturing cost.

Description

Electrode slice/battery dry method and apparatus that anhydrates
technical fieldthe present invention relates to secondary cell, relate in particular in lithium ion battery manufacturing process electrode and/or the battery dry method and apparatus that anhydrates.
background technologythat lithium ion battery comprises polymer and liquid lithium ionic cell, and along with the development of lithium-ion electric pool technology, its cost performance improves constantly, by all trades and professions extensive use.Nearly one or two years, along with the develop rapidly of mechanics of communication, the indexs such as capacity, charge-discharge performance and manufacturing cost to lithium ion battery are had higher requirement.
For lithium ion battery, its basic structure comprises battery, described battery is to be made up of several electrode slices overlapping or that reel, electrode slice comprises collector and coating polarity dope layer, on the limit of each electrode slice, be provided with lug, after the overlapping welding of lug of same polarity, be connected with lithium ion battery external terminal again.And the quality of capacity of lithium ion battery size and charging performance, not only relevant to the polarity dope layer of collector, also relevant to pole piece water content (aridity), therefore in the manufacturing process of the lithium ion battery of prior art, all to be dried respectively processing in the making of electrode slice making and battery core.The drying means of prior art electrode slice or battery is, electrode slice or battery are placed in baking box, keeping under a certain temperature conditions (50 DEG C ~ 110 DEG C), heat drying after extracting vacuum, keep some minutes with nitrogen afterwards, so circulation, makes described pole piece or battery reach required aridity.Vacuum is to be oxidized for fear of pole piece, heating is in order to accelerate the evaporation of moisture in battery pole piece, and it is also that this method can be removed the moisture in pole piece effectively in order to utilize the characteristic that dry nitrogen can adsorption moisture that nitrogen keeps, but drying time is long, power consumption is large.For improving long problem drying time, some factory takes to improve temperature and accelerates the method for the evaporation of moisture, but along with the raising of temperature, has brought some negative effects: as the barrier film of battery shrinks, air permeability changes, even closed pore, battery distortion etc.
In order to accelerate the evaporation of moisture content, allow battery reach better aridity, in the Chinese patent (ZL 200810135388.0) of by name " a kind of pole piece drying equipment and drying means ", propose a kind of pole piece to be dried successively to be put into the method that infrared baking vessel and air blast baking vessel toast, but this method may cause positive electrode to be oxidized, and therefore plants the less of method practice.
Chinese patent " drying means of lithium ion secondary battery pole piece " (ZL 201010601374.0) proposes a kind of heating in vacuum baking, inert gas and exchange of moisture (maintenance) in addition, then the method for heating in vacuum baking.This method has effectively been avoided the generation of oxidation, but toasts the not significantly shortening of dry time, and efficiency improves limited, and the electrode slice generally using that this method is also at present a lot of producers toasts dry method.
The electrode slice that above-mentioned existing skill is stated toasts dry method approximately needs 24~36 hours.The required total power consumption of pole piece while being often dried 10 Wan An reaches 18060~27090 kilowatts.During simultaneously due to baking, need to vacuumize, it uses the manufacturing cost of baking box also very high.
summary of the inventionthe technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind of electrode slice/battery dry method and apparatus that anhydrates, and solves the problems such as prior art electrode slice baking time is long, efficiency is low.
The present invention solves the problems of the technologies described above the technical scheme proposing to be, proposes a kind of electrode slice/battery dry method of anhydrating, and comprises the steps:
Electrode slice dry needs or battery are positioned in airtight space, inwardly be filled with the inert gas of high temperature drying by the air inlet in this space, the inert gas of this high temperature drying is flowed through after described electrode slice or battery adsorption moisture and is discharged to outside, space by the exhaust outlet in described space; Constantly the inert gas of high temperature drying is filled with, makes temperature in this space remain on 50 DEG C ~ 110 DEG C, dew point value and after 12 hours to 18 hours, be filled with the inert gas of dry normal temperature until space temperature returns back to normal temperature below-45 DEG C.The temperature of the inert gas of described high temperature drying is 50 DEG C ~ 300 DEG C.Described inert gas comprises nitrogen or argon gas.
The present invention is that the technical scheme that solves the problems of the technologies described above and propose is, a kind of electrode slice/battery dry equipment that anhydrates, comprises airtight hurricane drier, rotary dehumidifier and heater; Described hurricane drier, rotary dehumidifier and heater are connected into closed-loop structure by pipeline: the exhaust outlet access rotary dehumidifier of described hurricane drier is processed air intlet, the dry air outlet of this rotary dehumidifier is connected to gas-heating apparatus air inlet, and the gas outlet of heater communicates with described hurricane drier air inlet; Between described rotary dehumidifier and gas-heating apparatus, be also provided with for external inert gas source access inert gas input interface; When the work of described equipment, electrode slice dry need or battery are positioned in airtight hurricane drier, the inert gas being provided by described inert gas source through described inert gas input interface flow through heater be heated to temperature required after, deliver to hurricane drier; The inert gas of being discharged by the exhaust outlet of hurricane drier flows into after rotary dehumidifier dehumidification treatments, is mixed into heater heating with the fresh inert gas of inert gas input interface inflow, then flows to hurricane drier, and formation circulates.
Described hurricane drier is also provided with measures the thermometer of its internal temperature, the dew point instrument of measurement gas water content, and the safety air vavle that prevents that air pressure is too high is housed.
In described hurricane drier, be provided with the fan that promotes inert gas flows.
In described hurricane drier, have spacing ground, the stacked pallet being provided with for electrodes sheet or battery, described pallet is provided with grid or the mesh that supplied gas flows through.
The housing of described hurricane drier adopts insulation material to make.
Described exhaust outlet is positioned at top or the top of hurricane drier, and air inlet is positioned at bottom or the bottom of hurricane drier.
Described equipment also comprises control circuit, and described control circuit gathers internal temperature and the dew point value of hurricane drier, controls the rotary dehumidifier and the heater work that electrically connect with it.
Blower fan is installed respectively at the exhaust outlet of described drying chamber and air inlet place, and described each blower fan electrically connects described control circuit, for controlling the wind speed of controlling exhaust outlet and air inlet discharge and inflow gas.
The air inlet of described hurricane drier is connected with air ducts, and respectively this wireway other end gas outlet is arranged in each pallet place of drying chamber successively, makes the inert gas that flows into air inlet blow to the pallet that is positioned at each layer through each wireway.
More preferably, described hurricane drier is separated into the two air-dry unit of row groups, air draft wall on end between described two row air-dry unit groups; Described air draft wall and two row air-dry unit group faces contact, and described air draft wall and air-dry unit group contact with each other grid or the mesh of the gas flow of making on face; The exhaust outlet of described hurricane drier communicates with air draft wall; The opposite side of the described two air-dry unit of row groups contacts with air intake metope respectively; Described air intake wall and the two air-dry unit of row contact with each other and have grid or the mesh of the gas flow of making on face; The air inlet of described hurricane drier communicates with air intake wall.
The described two air-dry unit of row groups are made up of several separate air-dry unit, and each air-dry unit is also provided with separately measures the thermometer of its internal temperature, the dew point instrument of measurement gas water content, and the safety air vavle that prevents that air pressure is too high is housed.
In described air-dry unit, have spacing ground, the stacked pallet being provided with for electrodes sheet or battery, described pallet is provided with grid or the mesh that supplied gas flows through.
Described equipment also comprises control circuit, and described control circuit gathers internal temperature and the dew point value of each air-dry unit, controls the rotary dehumidifier and the heater work that electrically connect with it.
Compared with the existing technology, the invention has the beneficial effects as follows: the baking time of pole piece or battery core shortens greatly, only need 12~18 hours, effectively saved electric energy, enhance productivity; This type of drying plant needs spatial area less, can design and produce according to the actual conditions of usage space; This type of drying plant is without vacuum extractor, and availability simple in structure, unit volume is high, and cost of manufacture is cheap.
brief description of the drawingsfig. 1 is electrode slice/battery of the present invention device structure schematic diagram that anhydrates dry in the preferred embodiment of dry method and apparatus that anhydrates, the flow direction that in figure, arrow is gas;
Fig. 2 is the workflow diagram in described preferred embodiment;
Fig. 3 is the internal structure schematic diagram of hurricane drier 1 described in described preferred embodiment, the flow direction that in figure, arrow is gas;
Fig. 4 is the structural representation of air intake wall 104 described in described preferred embodiment, the flow direction that in figure, arrow is gas.
              
detailed description of the inventionbelow, the preferred embodiment shown in by reference to the accompanying drawings is further set forth the present invention.
Referring to Fig. 1, the preferred embodiments of the present invention are, a kind of electrode slice/battery dry equipment that anhydrates, comprises airtight hurricane drier 1, rotary dehumidifier 2 and heater 3; Described hurricane drier 1, rotary dehumidifier 2 and heater 3 are connected into closed-loop structure by pipeline: the exhaust outlet 11 of described hurricane drier 1 accesses rotary dehumidifier 2 and processes air intlet, the dry air outlet of this rotary dehumidifier 2 is connected to gas-heating apparatus 3 air inlets, and the gas outlet of heater 3 communicates with described hurricane drier 1 air inlet 12; Between described rotary dehumidifier 2 and gas-heating apparatus 3, be also provided with for external inert gas source 6 and access inert gas input interface 5; When the work of described equipment, electrode slice dry needs or battery are positioned in airtight hurricane drier 1, the inert gas being provided by described inert gas source 6 through described inert gas input interface 5 flow through heater 3 be heated to temperature required after, deliver to hurricane drier 1; The fresh inert gas that the inert gas of being discharged by the exhaust outlet 11 of hurricane drier 1 flows into after rotary dehumidifier 2 dehumidification treatments, flow into inert gas input interface 5 is mixed into heater 3 and heats, then flows to hurricane drier 1, and formation circulates.Described hurricane drier 1 is also provided with measures the thermometer of its internal temperature, the dew point instrument of measurement gas water content, and the safety air vavle that prevents that air pressure is too high is housed.The described dry equipment that anhydrates has control circuit, and this control circuit gathers internal temperature and the dew point value of hurricane drier 1, controls the rotary dehumidifier 2 and the heater 3 that electrically connect with it and works.
In described hurricane drier 1, have spacing ground, the stacked pallet being provided with for electrodes sheet or battery, described pallet is provided with grid or the mesh that supplied gas flows through.
Referring to Fig. 2, adopt electrode slice/battery in this example dry equipment that anhydrates as follows to electrode slice or the battery dry workflow of anhydrating:
1. electrode slice/battery to be baked is put on the pallet of hurricane drier 1.
2. shut the door of hurricane drier 1, check that whether the controller of each interface is working properly.
3. open the inert gas source 6 connecting with inert gas input interface 5, in this example, inert gas source 6 is nitrogen making machines, the drying nitrogen that nitrogen making machine is made is heated to 50 DEG C~300 DEG C by heater 3, enter again hurricane drier 1, along with the circulation of gas, make the temperature of hurricane drier 1 inside reach and keep 50 DEG C~110 DEG C; Can know its internal temperature according to the temperature sensor of hurricane drier 1.When temperature is during lower than 50 DEG C, need to increase the power of nitrogen making machine, rotary dehumidifier 2 and heater 3.Make hurricane drier 1 box house temperature fast rise.After stable, reduce the power of heater 3.If hurricane drier 1 box house temperature exceedes 110 DEG C, need to reduce the power of heater 3, and the power 3 of rotary dehumidifier, make hurricane drier 1 box house cooling, make it remain 50 DEG C~110 DEG C.
4. the nitrogen heating through heater 3 from the bottom of hurricane drier 1 or the air inlet of bottom 12 enter, utilize high-temperature gas than light this characteristic of cryogenic gas, nitrogen can be in the interior circulation of hurricane drier 1, in cyclic process, can take away the steam of electrode slice/battery, the last top of hurricane drier 1 or the exhaust outlet on top 11 are discharged, and enter rotary dehumidifier 2 and are dried.Nitrogen after rotary dehumidifier 2 is processed, with moisture be discharged from, nitrogen content can reduce to some extent so, needs nitrogen that nitrogen making machine supplements fresh dried to keep balance.Owing to there being the control of safety valve, so, the magnitude of recruitment of fresh nitrogen can be a little more than the gas flow losing through rotary dehumidifier 2.
5. the dew point hygrometer by hurricane drier 1 is measured the moisture of hurricane drier 1 inside, make its remain on-below 45, internal temperature, remains on 50 DEG C~110 DEG C.As long as guarantee each connector good seal such as air inlet, air outlet, just can ensure that hurricane drier 1 dew point remains on below-45 DEG C.Temperature is during lower than 50 DEG C, can strengthen the power of air inlet fan and the power of heater, treat that baking box internal temperature reaches when being stabilized between 50 DEG C~110 DEG C, if temperature is greater than 110 DEG C, be that capable of regulating reduces the air quantity of rotary dehumidifier or turns down the power of heater, drop to 110 DEG C and following until thermometer shows.So keep 12~18 hours, can assert electrode slice/battery drying of hurricane drier 1, turn off heater 2, continue cyclically to enter in hurricane drier 1 without the nitrogen of heating, in the time that hurricane drier 1 is cooled to normal temperature, can open hurricane drier 1 dry electrode slice/battery is taken out, carry out next technique.
In this example, can adopt other inert gases and replace nitrogen, as argon gas, but cost is slightly high.In addition, the water imbibition of the nitrogen under equal aridity will be higher than argon gas, and our first-selected nitrogen is as dry medium.
In this example, be can also be at the interior fan that arranges of described hurricane drier 1 to promote inert gas flows; Also can blower fan be installed respectively at the exhaust outlet of drying chamber 1 11 and air inlet 12 places simultaneously, described each blower fan electrically connects described control circuit, for controlling the wind speed of controlling exhaust outlet 11 and air inlet 12 discharges and inflow gas, accelerate circulating of internal gas.
In this example, can also air ducts be set at hurricane drier 1, the air inlet 12 that each wireway one end connects, other end gas outlet is arranged in each pallet place of drying chamber 1 successively, makes the gas that flows into air inlet 12 blow to the pallet that is positioned at each layer through each wireway.
Referring to Fig. 3 and Fig. 4, electrode slice/the battery of the another embodiment of the present invention dry equipment that anhydrates, basic identical with the equipment of precedent, being of its difference is separated into the two air-dry unit of row groups 101 in described hurricane drier 1, air draft wall 103 on end between the described two air-dry unit of row groups 101; Described air draft wall 103 and two row air-dry unit groups 101 each other face contacts, and described air draft wall 103 and air-dry unit group 101 contact with each other grid or the mesh of the gas flow of making on face; The exhaust outlet 11 of described hurricane drier 1 communicates with air draft wall 103; The opposite side of the described two air-dry unit of row groups 101 contacts with 104, air intake wall respectively; Described air intake air-guiding wall 104 and the two air-dry unit 101 of row contact with each other and have grid or the mesh 1040 of the gas flow of making on face; The air inlet 11 of described hurricane drier 1 communicates with air intake air-guiding wall 104.
As shown in Figure 4, all useful sharp Air Flow mesh or grids 1040 of contact-making surface of described air intake air-guiding wall 104 and air-dry unit, described air draft air-guiding wall 103 is identical with air intake wall 104 structures, and just the flow direction of gas is just contrary.
In this example, the described two air-dry unit of row groups 101 are made up of several separate air-dry unit 1011 again, each air-dry unit 1011 is also provided with separately measures the thermometer of its internal temperature, the dew point instrument of measurement gas water content, and the safety air vavle that prevents that air pressure is too high is housed.
In described air-dry unit 1011, have spacing ground, the stacked pallet being provided with for electrodes sheet or battery, described pallet is provided with grid or the mesh that supplied gas flows through.
Control circuit in these row gathers internal temperature and the dew point value of each air-dry unit 1011, controls the rotary dehumidifier 2 and the heater 3 that electrically connect with it and works.Blower fan is installed respectively at the exhaust outlet 11 of described drying chamber 1 and air inlet 12 places, and described each blower fan electrically connects described control circuit, for controlling the wind speed of controlling exhaust outlet 11 and air inlet 12 discharges and inflow gas.
In this example by adopt electrode slice/battery in this example anhydrate dry equipment to electrode slice or battery anhydrate dry workflow and precedent basic identical, just slightly different in dry-air blast chamber 1, be about to need dry electrode slice or battery to be positioned in each airtight air-dry unit 1011, inwardly be filled with the inert gas (as nitrogen) that is heated to be 50 DEG C~300 DEG C of high temperature dryings by heater 3 by the empty air inlet 12 of this hurricane drier 1, this inert gas is through air intake air-guiding wall 104, 105 flow into each air-dry unit 1011, after the moisture of adsorption electrode sheet or battery, flowing into air draft air-guiding wall 103 is discharged to by exhaust outlet 11 again, constantly the inert gas of high temperature drying is filled with, make temperature in each airtight air-dry unit 1011 remain on 50 DEG C ~ 110 DEG C, dew point value below-45 DEG C after 12 hours to 18 hours, be filled with the dry inert gas without heating until air-dry unit 1011 temperature retrievals to normal temperature.
In this example, hurricane drier 1 is separated into several air-dry unit, facilitates in actual making, and dried electrode slice/battery is taken out in batches and entered subsequent processing.
In the various embodiments described above, the shell body of described hurricane drier 1 adopts insulation material to make.
We know, the about needs of baking box dried electrode sheet of prior art 24~36 hours.Total power consumption of the pole piece while being often dried 10 Wan An reaches 18060~27090 kilowatts.And by method of the present invention or device just 12~18 hours; Pole piece energy consumption for drying when every 10 Wan An is reduced to 2880~4320 kilowatts, and the minimizing of energy consumption is apparent, has the effect of fabulous energy-saving and emission-reduction.Thereby the while has increased effective use volume because the volume of the hurricane drier of this equipment does not need to vacuumize, and can design the drying equipment that anhydrates that floor space is less.Compared with the baking box of prior art, the pole piece of dry equal number, the floor space of this equipment be only prior art baking box floor space 1/3, can design and produce suitable equipment according to the actual conditions of usage space completely.Meanwhile, in addition, because the hurricane drier of equipment of the present invention need not vacuumize, its manufacturing cost is also just cheap many.

Claims (16)

1. electrode slice/battery dry method of anhydrating, comprises the steps:
Battery pole piece dry needs or battery are positioned in airtight space, inwardly be filled with the inert gas of high temperature drying by the air inlet in this space, the inert gas of this high temperature drying is flowed through after described electrode slice or battery adsorption moisture and is discharged to outside, space by the exhaust outlet in described space; Constantly the inert gas of high temperature drying is filled with, makes temperature in this space remain on 50 DEG C ~ 110 DEG C, dew point value and after 12 hours to 18 hours, be filled with the inert gas of dry normal temperature until space temperature returns back to normal temperature below-45 DEG C.
2. according to the electrode slice/battery of the claim 1 dry method of anhydrating, it is characterized in that:
The temperature of the inert gas of described high temperature drying is 50 DEG C ~ 300 DEG C.
3. according to the dry method of anhydrating of the electrode slice/battery described in claim 1 or 2, it is characterized in that:
Described inert gas comprises nitrogen or argon gas.
4. electrode slice/battery dry equipment that anhydrates, is characterized in that:
Comprise airtight hurricane drier (1), rotary dehumidifier (2) and heater (3); Described hurricane drier (1), rotary dehumidifier (2) and heater (3) are connected into closed-loop structure by pipeline: exhaust outlet (11) the access rotary dehumidifier (2) of described hurricane drier (1) is processed air intlet, the dry air outlet of this rotary dehumidifier (2) is connected to gas-heating apparatus (3) air inlet, and the gas outlet of heater (3) communicates with described hurricane drier (1) air inlet (12); Between described rotary dehumidifier (2) and gas-heating apparatus (3), be also provided with for external inert gas source (6) access inert gas input interface (5); When described equipment work, electrode slice dry needs or battery are positioned in airtight hurricane drier (1), the inert gas being provided by described inert gas source (6) through described inert gas input interface (5) flow through heater (3) be heated to temperature required after, deliver to hurricane drier (1); The inert gas of being discharged by the exhaust outlet (11) of hurricane drier (1) flows into after rotary dehumidifier (2) dehumidification treatments, is mixed into heater (3) heating with the fresh inert gas of inert gas input interface (5) inflow, flow to hurricane drier (1), formation circulates again.
5. according to electrode slice/battery claimed in claim 4 dry equipment that anhydrates, it is characterized in that:
Described hurricane drier (1) is also provided with measures the thermometer of its internal temperature, the dew point instrument of measurement gas water content, and the safety air vavle that prevents that air pressure is too high is housed.
6. according to electrode slice/battery claimed in claim 4 dry equipment that anhydrates, it is characterized in that:
In described hurricane drier (1), be provided with the fan that promotes inert gas flows.
7. according to electrode slice/battery claimed in claim 4 dry equipment that anhydrates, it is characterized in that:
In described hurricane drier (1), have spacing ground, the stacked pallet being provided with for electrodes sheet or battery, described pallet is provided with grid or the mesh that supplied gas flows through.
8. according to electrode slice/battery claimed in claim 4 dry equipment that anhydrates, it is characterized in that:
The housing of described hurricane drier (1) adopts insulation material to make.
9. according to electrode slice/battery claimed in claim 4 dry equipment that anhydrates, it is characterized in that:
Described exhaust outlet (11) is positioned at top or the top of hurricane drier (1), and air inlet (12) is positioned at bottom or the bottom of hurricane drier (1).
10. according to electrode slice/battery claimed in claim 4 dry device that anhydrates, it is characterized in that:
Also comprise control circuit, described control circuit gathers internal temperature and the dew point value of hurricane drier (1), controls the rotary dehumidifier (2) and heater (3) work that electrically connect with it.
11. according to electrode slice/battery claimed in claim 4 dry equipment that anhydrates, and it is characterized in that:
Exhaust outlet (11) and the air inlet (12) of described drying chamber (1) locate to install respectively blower fan, and described each blower fan electrically connects described control circuit, for controlling the wind speed that has control exhaust outlet (11) and air inlet (12) discharge and inflow gas.
12. according to electrode slice/battery claimed in claim 7 dry equipment that anhydrates, and it is characterized in that:
The air inlet (12) of described hurricane drier (1) is connected with air ducts, respectively this wireway other end gas outlet is arranged in each pallet place of drying chamber (1) successively, makes the inert gas that flows into air inlet (12) blow to the pallet that is positioned at each layer through each wireway.
13. according to electrode slice/battery claimed in claim 4 dry equipment that anhydrates, and it is characterized in that:
Described hurricane drier (1) is separated into the two air-dry unit of row groups (101), air draft wall (103) on end between described two row air-dry unit groups (101); Described air draft wall (103) and two row air-dry unit group (101) faces contacts, and described air draft wall (103) and air-dry unit group (101) contact with each other grid or the mesh of the gas flow of making on face; The exhaust outlet (11) of described hurricane drier (1) communicates with air draft wall (103);
The opposite side of described two row air-dry unit groups (101) contacts with air intake air-guiding wall (104) face respectively; Described air intake wall (104) and air-dry unit (101) contact with each other grid or the mesh of the gas flow of making on face; The air inlet (11) of described hurricane drier (1) communicates with air intake wall (104).
14. according to the dry equipment that anhydrates of the electrode slice/battery described in claim 13, it is characterized in that:
Described air-dry unit group (101) is made up of several separate air-dry unit (1011), each air-dry unit (1011) is also provided with separately measures the thermometer of its internal temperature, the dew point instrument of measurement gas water content, and the safety air vavle that prevents that air pressure is too high is housed.
15. according to the dry equipment that anhydrates of the electrode slice/battery described in claim 14, it is characterized in that:
In described air-dry unit (1011), have spacing ground, the stacked pallet being provided with for electrodes sheet or battery, described pallet is provided with grid or the mesh that supplied gas flows through.
16. according to the dry device that anhydrates of the electrode slice/battery described in claim 14, it is characterized in that:
Also comprise control circuit, described control circuit gathers internal temperature and the dew point value of each air-dry unit (1011), controls the rotary dehumidifier (2) and heater (3) work that electrically connect with it.
CN201310171155.7A 2013-05-10 2013-05-10 Electrode plate/battery cell dewatering and drying method and equipment Pending CN104138828A (en)

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CN203304152U (en) * 2013-05-10 2013-11-27 杨洪钧 Electrode slice/battery cell dehydration drying device

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* Cited by examiner, † Cited by third party
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CN105990618A (en) * 2015-03-16 2016-10-05 罗伯特·博世有限公司 Battery regulation with adsorbent regeneration
WO2019129038A1 (en) * 2017-12-26 2019-07-04 武汉华星光电技术有限公司 Photoresist softbaking apparatus
CN108458579A (en) * 2018-02-10 2018-08-28 安徽唯诗杨信息科技有限公司 A kind of lithium ion power cell pole flakes drying device and drying means
CN109449366A (en) * 2018-09-29 2019-03-08 格林美股份有限公司 A kind of positive electrode preparation facilities of small-sized test battery
CN109449366B (en) * 2018-09-29 2021-07-13 格林美股份有限公司 Positive electrode material preparation device of small-size test battery

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Application publication date: 20141112

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