WO2021166535A1 - 不純物処理装置および不純物処理方法 - Google Patents
不純物処理装置および不純物処理方法 Download PDFInfo
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- WO2021166535A1 WO2021166535A1 PCT/JP2021/001965 JP2021001965W WO2021166535A1 WO 2021166535 A1 WO2021166535 A1 WO 2021166535A1 JP 2021001965 W JP2021001965 W JP 2021001965W WO 2021166535 A1 WO2021166535 A1 WO 2021166535A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
- H01G11/20—Reformation or processes for removal of impurities, e.g. scavenging
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0438—Processes of manufacture in general by electrochemical processing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C5/00—Separating dispersed particles from liquids by electrostatic effect
- B03C5/02—Separators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C5/00—Separating dispersed particles from liquids by electrostatic effect
- B03C5/02—Separators
- B03C5/022—Non-uniform field separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0409—Methods of deposition of the material by a doctor blade method, slip-casting or roller coating
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- 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
Definitions
- This disclosure relates to an impurity treatment apparatus and an impurity treatment method.
- metal particles When preparing a solid-liquid mixture having electron conductivity, metal particles may be mixed as impurities.
- impurities may cause defects in the electronic device.
- examples of electronic devices include power storage devices such as lithium ion batteries, lithium ion secondary batteries, alkaline batteries, electric double layer capacitors, and electrochemical capacitors.
- examples of the solid-liquid mixture include electrode slurries used in these power storage devices.
- metal impurities When metal impurities are mixed in the electrode slurry, the metal impurities can cause a short circuit between the positive and negative electrodes.
- Patent Document 1 discloses a method of magnetically removing metal foreign substances contained in an aqueous slurry containing an electrode active material and a particulate binder.
- the conventional method of removing metal impurities using magnetism could not remove impurities made of non-magnetic metal. Therefore, the conventional method has an insufficient treatment rate of impurities.
- One aspect of the present disclosure is an impurity treatment device.
- This device includes a pipe through which a liquid to be treated containing metal impurities flows, a first electrode and a second electrode arranged in the pipe, a power supply unit through which an electric current flows between the first electrode and the second electrode, and the like. To be equipped.
- Another aspect of the present disclosure is an impurity treatment method.
- This method includes flowing a liquid to be treated containing metal impurities through a pipe and passing an electric current through the liquid to be treated flowing in the pipe.
- the treatment rate of impurities in the liquid to be treated can be increased.
- FIG. 1 is a schematic view of a coating apparatus provided with the impurity treatment apparatus according to the first embodiment.
- FIG. 2A is a perspective view schematically showing the electrode portion.
- FIG. 2B is a perspective view schematically showing the electrode portion.
- FIG. 2C is a perspective view schematically showing the electrode portion.
- FIG. 3A is a schematic view of an electrode portion included in the impurity processing apparatus according to the second embodiment.
- FIG. 3B is a schematic view of an electrode portion included in the impurity processing apparatus according to the second embodiment.
- FIG. 3C is a schematic view of an electrode portion included in the impurity processing apparatus according to the second embodiment.
- FIG. 3D is a schematic view of an electrode portion included in the impurity processing apparatus according to the second embodiment.
- FIG. 3E is a schematic view of an electrode portion included in the impurity processing apparatus according to the second embodiment.
- FIG. 3F is a schematic view of an electrode portion included in the impurity processing apparatus according to the second embodiment
- FIG. 1 is a schematic view of a coating apparatus provided with the impurity treatment apparatus according to the first embodiment.
- the coating device 1 includes a coating die 2, a valve 4, a tank 6, a pump 8, a feed pipe 10, a return pipe 12, and a die supply pipe 14.
- the coating die 2 is an instrument for applying the paint 18 to the object to be coated 16.
- the coating device 1 of the present embodiment is used as an example for manufacturing an electrode plate of a secondary battery.
- the electrode plate of the secondary battery is a sheet-shaped electrode material obtained by applying an electrode slurry to a current collector and drying it. Therefore, in the present embodiment, the object to be coated 16 is a current collector of the secondary battery, and the paint 18 is a slurry for electrodes of the secondary battery.
- the current collector is, for example, a metal leaf.
- the electrode slurry is an electron-conducting solid-liquid mixture containing a solvent and an electrode active material. Alternatively, the electrode slurry is a solid-liquid mixture containing a solvent and a conductive auxiliary agent.
- the electrode plate of the positive electrode is produced by applying an electrode slurry containing a positive electrode active material such as lithium cobalt oxide or lithium iron phosphate on an aluminum foil.
- the slurry for the positive electrode may contain a conductive auxiliary agent such as graphite.
- the electrode plate of the negative electrode is produced by applying a slurry for an electrode containing a negative electrode active material (or a conductive auxiliary agent) such as graphite on a copper foil.
- the coating die 2 is arranged so that the discharge port 22 faces the peripheral surface of the backup roll 20 at a predetermined distance.
- the work piece 16 to be coated is continuously conveyed to a position where the backup roll 20 and the discharge port 22 face each other by the rotation of the backup roll 20.
- a valve 4 is connected to the coating die 2 via a die supply pipe 14.
- the valve 4 can switch between supplying and not supplying the paint 18 to the coating die 2.
- the coating device 1 can discharge the coating material 18 from the coating die 2 to the object to be coated 16 while the coating material 18 is being supplied to the coating die 2.
- a tank 6 is connected to the valve 4 via a feed pipe 10 and a return pipe 12.
- the tank 6 stores the paint 18.
- a pump 8 is provided in the feed pipe 10, and the paint 18 is sent from the tank 6 to the valve 4 by driving the pump 8.
- the valve 4 supplies the paint 18 supplied from the tank 6 to the coating die 2 via the die supply pipe 14.
- the valve 4 returns the paint 18 supplied from the tank 6 to the tank 6 via the return pipe 12.
- the paint 18 can be discharged from the coating die 2 to form the coating portion 18a of the paint 18 on the object to be coated 16. Further, when the valve 4 returns the paint 18 to the tank 6, the coating of the paint 18 from the coating die 2 can be stopped and the uncoated portion 16a of the paint 18 can be formed on the object to be coated 16. That is, the valve 4 can intermittently apply the paint 18 to the object to be coated 16.
- the uncoated portion 16a is used for attaching the center lead of the electrode or the like.
- the configuration of each part of the coating device 1 is not limited to the above.
- the coating device 1 is provided with the impurity treatment device 100 according to the present embodiment.
- the impurity processing device 100 includes a pipe 102, an electrode unit 104, and a power supply unit 106.
- the pipe 102 is a flow path through which a liquid to be treated containing metal impurities flows.
- the area between the tank 6 and the pump 8 in the feed pipe 10 constitutes the pipe 102. That is, the impurity processing device 100 is provided in the feed pipe 10.
- the electrode slurry containing the coating material 18, in other words, the solvent, the electrode active material and / or the conductive auxiliary agent corresponds to the liquid to be treated.
- the impurity processing device 100 may be provided in the region between the pump 8 and the valve 4 in the feed pipe 10. Further, the impurity processing device 100 may be provided in the return pipe 12, the die supply pipe 14, or the like. Further, the coating device 1 is not limited to the production of the electrode plate of the secondary battery, and the object to be coated 16 and the coating material 18 do not have to be the electrode plate and the electrode slurry. Further, the impurity treatment device 100 may be provided in a device other than the coating device 1, for example, a device for manufacturing a liquid to be treated.
- the electrode portion 104 includes a first electrode 108 and a second electrode 110.
- 2A to 2C are perspective views schematically showing the electrode portion 104.
- FIG. 2A is a first example of the electrode portion 104
- FIG. 2B is a second example of the electrode portion 104
- FIG. 2C is a third example of the electrode portion 104.
- the first electrode 108 and the second electrode 110 are arranged in the pipe 102.
- the electrode portion 104 of the present embodiment has a rod-shaped body 112 inserted into the pipe 102.
- the first electrode 108 is provided on the pipe 102
- the second electrode 110 is provided on the rod-shaped body 112.
- the first electrode 108 and the second electrode 110 are insulated from each other.
- the first electrode 108 and the second electrode 110 are made of a material having electrical conductivity.
- the material has, for example, a volume resistivity of 0.1 ⁇ ⁇ cm or less.
- Specific examples of the materials constituting the first electrode 108 and the second electrode 110 include insoluble metals such as stainless steel, titanium, platinum, gold, niobium, and ruthenium, and carbon. These materials can also be combined as appropriate.
- the first electrode 108 is provided at least on the inner wall (inner peripheral surface) of the pipe 102.
- the first electrode 108 may be provided on the entire inner wall of the pipe 102, or may be provided on a part of the inner wall.
- the first electrode 108 may be a part of the area in the direction in which the liquid to be treated flows, or it may be a part of the area in the circumferential direction of the pipe 102.
- the entire pipe 102 may be made of an insoluble metal or the like, and the entire pipe 102 may form the first electrode 108. That is, the first electrode 108 may be provided only on the surface of the inner wall of the pipe 102, or may be provided even inside the inner wall.
- the second electrode 110 is provided at least on the outer wall (outer peripheral surface) of the rod-shaped body 112.
- the second electrode 110 may be provided on the entire outer wall of the rod-shaped body 112, or may be provided on a part of the outer wall.
- the second electrode 110 may be provided on a part of the outer wall, it may be a part of the region in the direction in which the liquid to be treated flows, or it may be a part of the region in the circumferential direction of the rod-shaped body 112.
- the entire rod-shaped body 112 may be made of an insoluble metal or the like, and the entire rod-shaped body 112 may form the second electrode 110. That is, the second electrode 110 may be provided only on the surface of the outer wall of the rod-shaped body 112, or may be provided even inside the outer wall.
- the rod-shaped body 112 is a hollow body. The inside of the rod-shaped body 112 is sealed, and the liquid to be treated does not flow.
- the rod-shaped body 112 is a medium entity.
- the rod-shaped body 112 is a tubular mesh. The liquid to be treated can flow inside and outside the rod-shaped body 112 through the opening of the mesh while flowing in the pipe 102.
- the rod-shaped body 112 of the tubular mesh as the second electrode 110, the contact area between the second electrode 110 and the liquid to be treated can be increased, and the treatment rate of impurities by the impurity treatment device 100 can be increased.
- the power supply unit 106 allows a current to flow between the first electrode 108 and the second electrode 110.
- the power supply unit 106 can be composed of a known DC / DC converter, DC / AC inverter, or the like.
- the first electrode 108 is connected to the positive electrode output terminal of the power supply unit 106
- the second electrode 110 is connected to the negative electrode output terminal of the power supply unit 106. Therefore, the first electrode 108 is the positive electrode and the second electrode 110 is the negative electrode.
- the first electrode 108 may be the negative electrode and the second electrode 110 may be the positive electrode.
- the current flowing through the power supply unit 106 may be a direct current or an alternating current.
- the amount of current flowing through the power supply unit 106 is, for example, 0.1 mA or more and 12 mA or less.
- metal impurities in the liquid to be treated are ionized and minute. Can be transformed into.
- Some metal impurities contained in the electrode slurry have a size of about several hundred ⁇ m, but can be miniaturized to a size of 10 ⁇ m or less by energizing the liquid to be treated.
- the present inventor when an electric current is passed through a liquid to be treated containing a copper wire as a metal impurity model, the mass of the copper wire decreases linearly with an increase in the amount of electricity, that is, the metal impurity becomes miniaturized. Is confirmed. It has also been confirmed that metal impurities can be miniaturized regardless of whether a direct current or an alternating current is applied.
- metal impurities can be ionized and electrodeposited on the surface of the first electrode 108 or the second electrode 110.
- metal impurities can be removed from the liquid to be treated.
- the direct current is more suitable for miniaturization of metal impurities, and the alternating current is more suitable for electrodeposition of metal impurities.
- Conditions for electrodepositing metal impurities on the electrode surface can be appropriately set by those skilled in the art.
- metal impurities By miniaturizing or removing metal impurities, it is possible to prevent the metal impurities themselves from causing a short circuit between the positive and negative electrodes. Further, in a power storage device in which an electrolytic solution is interposed between the positive and negative electrodes, if the positive electrode slurry contains metal impurities, the metal impurities are eluted into the electrolytic solution when the power storage device is charged and are reduced and precipitated on the surface of the negative electrode. obtain. When this precipitation is repeated, metal impurities grow in a dendride shape, penetrate the separator, reach the positive electrode, and cause a short circuit. Short circuits due to dendrides are more likely to occur as the size of metal impurities increases.
- the application of voltage from the power supply unit 106 is controlled by the control device 107 as an example.
- the control device 107 is realized by elements and circuits such as a computer CPU and memory as a hardware configuration, and is realized by a computer program or the like as a software configuration. Those skilled in the art will understand that these functional blocks can be realized in various ways by combining hardware and software.
- the control device 107 controls the power supply unit 106 based on, for example, the value of the current flowing from the power supply unit 106 and the time for the current to flow. In this case, the control device 107 constitutes a part of the impurity processing device 100.
- the power supply unit 106 may be turned on / off regardless of the control device 107.
- the control device 107 may control the valve 4 and the pump 8.
- the impurity treatment apparatus 100 includes a pipe 102 through which a liquid to be treated containing a metal impurity flows, a first electrode 108 and a second electrode 110 arranged in the pipe 102, and the like.
- a power supply unit 106 for passing a current between the first electrode 108 and the second electrode 110 is provided. Since the impurity treatment apparatus 100 of the present embodiment miniaturizes or removes metal impurities by passing an electric current through the liquid to be treated, even if the impurities are non-magnetic metals, they can be treated. Therefore, the processing rate of impurities can be increased.
- the liquid to be treated flowing in the pipe 102 since an electric current is passed through the liquid to be treated flowing in the pipe 102, it is possible to treat metal impurities while transporting the liquid to be treated.
- the miniaturized metal impurities can be placed on the flow of the liquid to be treated and widely dispersed.
- the liquid to be treated is at least one of an electrode slurry containing a solvent and an electrode active material and an electrode slurry containing a solvent and a conductive auxiliary agent.
- the pipe 102 is provided in a coating device 1 including a coating die 2 for applying the liquid to be treated to the body 16 to be coated and a tank 6 for storing the liquid to be treated.
- impurity treatment can be performed in the process of transporting the liquid to be treated from the tank 6 to the coating die 2.
- the impurity treatment device 100 in the feed pipe 10 and the die supply pipe 14 of the coating device 1, the impurity treatment can be applied to the liquid to be treated until immediately before the liquid to be treated is applied to the object to be coated 16. can. Therefore, according to the impurity processing apparatus 100 of the present embodiment, the performance of the electronic device can be improved.
- the impurity processing device 100 can be attached to the device by simply using a part of the piping in the existing device as the piping 102 or replacing a part of the piping with the piping 102 of the impurity processing device 100. Therefore, installation, replacement, and maintenance of the impurity treatment device 100 are easy.
- the first electrode 108 is provided in the pipe 102
- the second electrode 110 is provided in the rod-shaped body 112 inserted into the pipe 102.
- the rod-shaped body 112 is a hollow body, a medium body, or a tubular mesh.
- the rod-shaped body 112 is a hollow body or a medium substance, it is possible to suppress an increase in pressure loss when the liquid to be treated passes through the pipe 102.
- the rod-shaped body 112 is a tubular mesh, the contact area between the second electrode 110 and the liquid to be treated can be increased to increase the treatment rate of impurities.
- the second embodiment has the same configuration as that of the first embodiment except for the arrangement of the first electrode 108 and the second electrode 110.
- the present embodiment will be mainly described with a configuration different from that of the first embodiment, and the common configuration will be briefly described or the description will be omitted.
- FIGS. 3A to 3F are schematic views of an electrode portion 104 included in the impurity processing apparatus 100 according to the second embodiment.
- FIG. 3A is a fourth example of the electrode portion 104
- FIG. 3B is a fifth example of the electrode portion 104
- FIG. 3C is a sixth example of the electrode portion 104
- FIG. 3D is a third example of the electrode portion 104.
- 7 is an example
- FIG. 3E is an eighth example of the electrode portion 104
- FIG. 3F is a ninth example of the electrode portion 104.
- FIGS. 3A to 3F show a state in which the inner wall of the pipe 102 is unfolded.
- the first electrode 108 and the second electrode 110 are provided on the pipe 102.
- the first electrode 108 and the second electrode 110 are provided at least on the inner wall of the pipe 102.
- the first electrode 108 and the second electrode 110 may be provided only on the surface of the inner wall of the pipe 102, or may be provided even inside the inner wall.
- an insulating portion 114 is provided between the first electrode 108 and the second electrode 110.
- the first electrode 108 and the second electrode 110 are electrically insulated by the insulating portion 114.
- the first electrode 108 is laid in a region of approximately 1/2 in the circumferential direction of the inner wall of the pipe 102, and the second electrode 110 is laid in the remaining approximately 1/2 region. There is.
- the first electrode 108 and the second electrode 110 extend in the direction in which the liquid to be treated flows.
- the plurality of first electrodes 108 and the plurality of second electrodes 110 extending in the flow direction of the liquid to be treated are alternately arranged in the circumferential direction of the inner wall of the pipe 102.
- the fourth example and the fifth example have a structure in which the first electrode 108 and the second electrode 110 are arranged in a stripe shape.
- the area of each electrode is smaller than that in the fourth example, and the laying pattern of each electrode is precise. Therefore, the fifth example can be suitably adopted for the pipe 102 having a larger inner diameter than the fourth example.
- the first electrode 108 and the second electrode 110 each have a comb-teeth shape and are laid so as to mesh with each other.
- the first electrode 108 and the second electrode 110 are laid spirally.
- the first electrode 108 is laid in a region of approximately 1/2 in the direction of flow of the liquid to be treated on the inner wall of the pipe 102, and the second electrode 110 is laid in the remaining approximately 1/2 region. Is laid.
- the first electrode 108 and the second electrode 110 extend in the circumferential direction of the pipe 102.
- the plurality of first electrodes 108 and the plurality of second electrodes 110 extending in the circumferential direction of the pipe 102 are alternately arranged in the direction in which the liquid to be treated flows.
- the first electrode 108 and the second electrode 110 are ring-shaped.
- the area of each electrode is smaller than that in the eighth example, and the laying pattern of each electrode is precise. Therefore, the ninth example can be suitably adopted for the electrode portion 104 which is longer in the flow direction of the liquid to be treated than the eighth example.
- a liquid to be treated containing metal impurities is flowed through the pipe (102). Including passing an electric current through the liquid to be processed flowing in the pipe (102), Impurity treatment method.
- Coating device 2 Coating die 6 Tank 16 Material to be coated 100 Impurity processing device 102 Piping 106 Power supply 108 First electrode 110 Second electrode 112 Rod-shaped body
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Abstract
Description
図1は、実施の形態1に係る不純物処理装置が設けられた塗工装置の模式図である。塗工装置1は、塗工用ダイ2と、バルブ4と、タンク6と、ポンプ8と、送り配管10と、戻し配管12と、ダイ供給配管14と、を備える。
実施の形態2は、第1電極108および第2電極110の配置を除き、実施の形態1と共通の構成を有する。以下、本実施の形態について実施の形態1と異なる構成を中心に説明し、共通する構成については簡単に説明するか、あるいは説明を省略する。
金属不純物を含有する被処理液を配管(102)に流し、
配管(102)内を流れる被処理液に電流を流すことを含む、
不純物処理方法。
2 塗工用ダイ
6 タンク
16 被塗工体
100 不純物処理装置
102 配管
106 電源部
108 第1電極
110 第2電極
112 棒状体
Claims (7)
- 金属不純物を含有する被処理液が流れる配管と、
前記配管内に配置される第1電極および第2電極と、
前記第1電極と前記第2電極との間に電流を流す電源部と、を備える、
不純物処理装置。 - 前記第1電極は、前記配管に設けられ、
前記第2電極は、前記配管内に挿通される棒状体に設けられる、
請求項1に記載の不純物処理装置。 - 前記棒状体は、中空体、中実体または筒状メッシュである、
請求項2に記載の不純物処理装置。 - 前記第1電極および前記第2電極は、前記配管に設けられる、
請求項1に記載の不純物処理装置。 - 前記被処理液は、溶媒および電極活物質を含む電極用スラリーならびに溶媒および導電助剤を含む電極用スラリーの少なくとも一方である、
請求項1乃至4のいずれか1項に記載の不純物処理装置。 - 前記配管は、被塗工体に前記被処理液を塗布する塗工用ダイおよび前記被処理液を貯留するタンクを備える塗工装置に設けられる、
請求項1乃至5のいずれか1項に記載の不純物処理装置。 - 金属不純物を含有する被処理液を配管に流し、
前記配管内を流れる前記被処理液に電流を流すことを含む、
不純物処理方法。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022501712A JP7656804B2 (ja) | 2020-02-21 | 2021-01-21 | 不純物処理装置および不純物処理方法 |
| EP21757685.9A EP4109578A4 (en) | 2020-02-21 | 2021-01-21 | Impurity processing device and impurity processing method |
| CN202180015942.5A CN115176352A (zh) | 2020-02-21 | 2021-01-21 | 杂质处理装置以及杂质处理方法 |
| US17/801,188 US20230102372A1 (en) | 2020-02-21 | 2021-01-21 | Impurity processing device and impurity processing method |
Applications Claiming Priority (2)
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| JP2020028257 | 2020-02-21 | ||
| JP2020-028257 | 2020-02-21 |
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| JP2023102717A (ja) * | 2022-01-12 | 2023-07-25 | 株式会社クオルテック | 電池の電極と電池および当該電池の製造方法 |
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| CN120250008A (zh) * | 2025-05-29 | 2025-07-04 | 宁德时代新能源科技股份有限公司 | 一种电极浆料处理装置以及处理方法 |
| CN120400865A (zh) * | 2025-06-30 | 2025-08-01 | 宁德时代新能源科技股份有限公司 | 浆料电解装置和电池生产设备 |
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- 2021-01-21 EP EP21757685.9A patent/EP4109578A4/en not_active Withdrawn
- 2021-01-21 CN CN202180015942.5A patent/CN115176352A/zh active Pending
- 2021-01-21 JP JP2022501712A patent/JP7656804B2/ja active Active
- 2021-01-21 WO PCT/JP2021/001965 patent/WO2021166535A1/ja not_active Ceased
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Also Published As
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| CN115176352A (zh) | 2022-10-11 |
| JP7656804B2 (ja) | 2025-04-04 |
| EP4109578A1 (en) | 2022-12-28 |
| EP4109578A4 (en) | 2023-08-16 |
| JPWO2021166535A1 (ja) | 2021-08-26 |
| US20230102372A1 (en) | 2023-03-30 |
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