JP7261783B2 - 電極の製造方法および電極ペースト塗工装置 - Google Patents
電極の製造方法および電極ペースト塗工装置 Download PDFInfo
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- JP7261783B2 JP7261783B2 JP2020191777A JP2020191777A JP7261783B2 JP 7261783 B2 JP7261783 B2 JP 7261783B2 JP 2020191777 A JP2020191777 A JP 2020191777A JP 2020191777 A JP2020191777 A JP 2020191777A JP 7261783 B2 JP7261783 B2 JP 7261783B2
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- 238000000576 coating method Methods 0.000 title claims description 111
- 239000011248 coating agent Substances 0.000 title claims description 106
- 239000002003 electrode paste Substances 0.000 title claims description 92
- 238000004519 manufacturing process Methods 0.000 title claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 43
- 239000011888 foil Substances 0.000 claims description 31
- 238000001035 drying Methods 0.000 claims description 23
- 238000005259 measurement Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 6
- 239000011149 active material Substances 0.000 description 20
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 13
- 229910001416 lithium ion Inorganic materials 0.000 description 13
- 239000005062 Polybutadiene Substances 0.000 description 8
- 239000002904 solvent Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007607 die coating method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910010586 LiFeO 2 Inorganic materials 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910002099 LiNi0.5Mn1.5O4 Inorganic materials 0.000 description 1
- 229910015561 LiNi0.8Co0.15Al0.5O2 Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910021437 lithium-transition metal oxide Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910000319 transition metal phosphate Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1005—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material already applied to the surface, e.g. coating thickness, weight or pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1015—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target
- B05C11/1023—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target responsive to velocity of target, e.g. to web advancement rate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
-
- 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
-
- 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
-
- 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
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0245—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Coating Apparatus (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
VBR=VBR_const×{1-(W(x)/Wave-1)}・・・(2)
VBR:バックアップロールの周速
VBR_const:バックアップロールの周速の設定値
W(x):塗工距離xにおける塗工幅、または時間xにおける塗工幅
Wave:塗工幅の平均値
VBR=VBR_const×{D(x’)/Dave)}・・・(3)
VBR:バックアップロールの周速
VBR_const:バックアップロールの周速の設定値
D(x’):塗工距離x’における塗工厚み、または時間x’における塗工厚み
Dave:塗工厚みの平均値
F(x)=W(x)/Wave・・・(1)
VBR=VBR_const×{1-(W(x)/Wave-1)}・・・(2)
VBR:バックアップロールの周速
VBR_const:バックアップロールの周速の設定値
W(x):塗工距離xにおける塗工幅(または時間xにおける塗工幅)
Wave:塗工幅の平均値
VBR=VBR_const×{D(x’)/Dave)}・・・(3)
VBR:バックアップロールの周速
VBR_const:バックアップロールの周速の設定値
D(x’):塗工距離x’における塗工厚み(または時間x’における塗工厚み)
Dave:塗工厚みの平均値
20 バックアップロール
30 測定部
40 制御部
50 乾燥機
60 集電箔
70 電極ペースト
100 電極ペースト塗工装置
Claims (4)
- 電極ペーストを、ダイより集電箔上に塗工する工程と、
前記塗工された電極ペーストを乾燥する工程と、
を包含する電極の製造方法であって、
前記集電箔がバックアップロールにより搬送され、
前記塗工された電極ペーストの厚みおよび幅の少なくともいずれかの変動を測定し、
前記変動が、バックアップロールに起因するものであり、
前記バックアップロールの周速を、前記変動の測定結果に応じて、前記変動が小さくなるように変化させる、電極の製造方法。 - 前記バックアップロールの周速を、下記式(2)に基づいて変化させる、請求項1に記載の電極の製造方法。
VBR=VBR_const×{1-(W(x)/Wave-1)}・・・(2)
VBR:バックアップロールの周速
VBR_const:バックアップロールの周速の設定値
W(x):塗工距離xにおける塗工幅、または時間xにおける塗工幅
Wave:塗工幅の平均値 - 前記バックアップロールの周速を、下記式(3)に基づいて変化させる、請求項1に記載の電極の製造方法。
VBR=VBR_const×{D(x’)/Dave)}・・・(3)
VBR:バックアップロールの周速
VBR_const:バックアップロールの周速の設定値
D(x’):塗工距離x’における塗工厚み、または時間x’における塗工厚み
Dave:塗工厚みの平均値 - 集電箔に電極ペーストを塗工するように構成されたダイコータ部と、
前記集電箔を搬送するように構成されたバックアップロールと、
塗工された電極ペーストの厚みおよび幅の少なくともいずれかの変動を測定するように構成された測定部と、
バックアップロールの周速を制御するように構成された制御部と、
を備え、
前記変動が、バックアップロールに起因するものであり、
前記バックアップロールの周速を、前記変動の測定結果に応じて、変動が小さくなるよう変化させるように構成されている、電極ペースト塗工装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020191777A JP7261783B2 (ja) | 2020-11-18 | 2020-11-18 | 電極の製造方法および電極ペースト塗工装置 |
US17/521,158 US20220158154A1 (en) | 2020-11-18 | 2021-11-08 | Method for manufacturing electrode and electrode paste coating device |
EP21207751.5A EP4002511A1 (en) | 2020-11-18 | 2021-11-11 | Method for manufacturing electrode and electrode paste coating device |
KR1020210156463A KR20220068164A (ko) | 2020-11-18 | 2021-11-15 | 전극의 제조 방법 및 전극 페이스트 도공 장치 |
CN202111362574.XA CN114551779A (zh) | 2020-11-18 | 2021-11-17 | 电极的制造方法和电极浆料涂覆装置 |
Applications Claiming Priority (1)
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JP2020191777A JP7261783B2 (ja) | 2020-11-18 | 2020-11-18 | 電極の製造方法および電極ペースト塗工装置 |
Publications (2)
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JP2022080610A JP2022080610A (ja) | 2022-05-30 |
JP7261783B2 true JP7261783B2 (ja) | 2023-04-20 |
Family
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JP2020191777A Active JP7261783B2 (ja) | 2020-11-18 | 2020-11-18 | 電極の製造方法および電極ペースト塗工装置 |
Country Status (5)
Country | Link |
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US (1) | US20220158154A1 (ja) |
EP (1) | EP4002511A1 (ja) |
JP (1) | JP7261783B2 (ja) |
KR (1) | KR20220068164A (ja) |
CN (1) | CN114551779A (ja) |
Families Citing this family (1)
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CN116159707B (zh) * | 2022-12-12 | 2024-04-12 | 安徽品优电池有限公司 | 一种锂离子电池电极浆料匀浆涂布装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012009297A (ja) | 2010-06-25 | 2012-01-12 | Toyota Motor Corp | 電池の製造方法および電極製造装置 |
JP2013140680A (ja) | 2011-12-28 | 2013-07-18 | Nissan Motor Co Ltd | 電極生産方法および電極生産制御システム |
JP2016219343A (ja) | 2015-05-25 | 2016-12-22 | トヨタ自動車株式会社 | 電極の製造方法 |
Family Cites Families (7)
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JPH02203963A (ja) * | 1989-01-30 | 1990-08-13 | Konica Corp | 塗布膜厚変動の減少方法 |
JP3680985B2 (ja) | 1999-06-11 | 2005-08-10 | トヨタ自動車株式会社 | 電池用シート電極の製造方法 |
US20130183438A1 (en) * | 2010-09-13 | 2013-07-18 | Shigeru Suzuki | Battery electrode manufacturing method and battery electrode manufacturing device |
JP6086384B2 (ja) * | 2013-03-26 | 2017-03-01 | 日本ゼオン株式会社 | リチウムイオン二次電池電極用シートの製造方法 |
KR101786774B1 (ko) * | 2013-09-27 | 2017-11-15 | 가부시키가이샤 히다치 하이테크놀로지즈 | 리튬이온 이차전지의 제조 방법, 리튬이온 이차전지의 제조 장치 및 리튬이온 이차전지 |
JP7035983B2 (ja) * | 2018-11-26 | 2022-03-15 | トヨタ自動車株式会社 | 電極シート製造装置 |
JP2020191777A (ja) | 2019-05-14 | 2020-11-26 | Tdk株式会社 | トランスデューサ並びにこれを用いたアクチュエータ及びエネルギハーベスタ |
-
2020
- 2020-11-18 JP JP2020191777A patent/JP7261783B2/ja active Active
-
2021
- 2021-11-08 US US17/521,158 patent/US20220158154A1/en active Pending
- 2021-11-11 EP EP21207751.5A patent/EP4002511A1/en active Pending
- 2021-11-15 KR KR1020210156463A patent/KR20220068164A/ko not_active Application Discontinuation
- 2021-11-17 CN CN202111362574.XA patent/CN114551779A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012009297A (ja) | 2010-06-25 | 2012-01-12 | Toyota Motor Corp | 電池の製造方法および電極製造装置 |
JP2013140680A (ja) | 2011-12-28 | 2013-07-18 | Nissan Motor Co Ltd | 電極生産方法および電極生産制御システム |
JP2016219343A (ja) | 2015-05-25 | 2016-12-22 | トヨタ自動車株式会社 | 電極の製造方法 |
Also Published As
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EP4002511A1 (en) | 2022-05-25 |
JP2022080610A (ja) | 2022-05-30 |
CN114551779A (zh) | 2022-05-27 |
KR20220068164A (ko) | 2022-05-25 |
US20220158154A1 (en) | 2022-05-19 |
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