JP6759523B2 - 電極製造用スラリーのフィルター目詰まりの評価方法 - Google Patents
電極製造用スラリーのフィルター目詰まりの評価方法 Download PDFInfo
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- 239000002002 slurry Substances 0.000 title claims description 87
- 238000004519 manufacturing process Methods 0.000 title claims description 28
- 238000011156 evaluation Methods 0.000 title claims description 8
- 238000010008 shearing Methods 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 230000010076 replication Effects 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 description 20
- 229910021383 artificial graphite Inorganic materials 0.000 description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 239000011149 active material Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 8
- 239000011267 electrode slurry Substances 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 229910021382 natural graphite Inorganic materials 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000007581 slurry coating method Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 229910021385 hard carbon Inorganic materials 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011834 metal-based active material Substances 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 229910021384 soft carbon Inorganic materials 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000002388 carbon-based active material Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
- G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N2011/0026—Investigating specific flow properties of non-Newtonian fluids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0092—Visco-elasticity, solidification, curing, cross-linking degree, vulcanisation or strength properties of semi-solid materials
- G01N2203/0094—Visco-elasticity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
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- G01N2203/0212—Theories, calculations
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- H—ELECTRICITY
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- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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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
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- Y02E60/10—Energy storage using batteries
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Battery Electrode And Active Subsutance (AREA)
Description
[式1]
γ(t)=γ0sin(ωt)
[式2]
σ(t)=σ0sin(ωt+δ)=γ0[G'(ω)sin(ωt)+G"ω)cos(ωt)]
式2において、G'は、弾性(storage modulus)を、G"は、粘性(loss modulus)を示す。
[式3]
tan δ=G"(ω)/G'(ω)
下記の実施例では、フィルター目詰まりイシューが発生したサンプルと発生していないサンプルとの位相角(δ)とクロスオーバー周波数とを比較した。
前記でフィルター目詰まりイシューが発生したスラリーと発生していないスラリーとについて、これらのレオロジー特性(粘度、位相角(δ)、クロスオーバー周波数)を測定した。測定装備は、Rotational Rhemoeterのうち1つであるTA Instruments社のDHR2(Dynamic Hybrid Rheometer)であった。2つの平行な板の間にスラリーをローディングした後、一定の速度で回転させながらかかる応力を測定して、粘度を計算し、位相角(δ)及びクロスオーバー周波数は、振動実験(Oscillation Test)を通じて測定した。測定結果を図5から図8に図示した。
Claims (8)
- 電極製造用スラリーのフィルター目詰まりの評価方法であって、
前記スラリーがフィルターを通過する時に発生するせん断速度を電算模写を通じて計算する段階と、
計算されたせん断速度を前記スラリーに適用する前と適用した後との位相角δ(゜)及びクロスオーバー周波数(Hz)を測定する段階と、
前記測定で得た値の変化によってフィルター目詰まりを判別する段階と、を含み、
ここで、せん断を加える前後の位相角(δ)の差が15゜以上である場合、及びせん断を加える前には、クロスオーバー周波数が0.1Hz未満であり、せん断を加えた後には、0.1Hz以上である場合を、フィルター目詰まりと評価する電極製造用スラリーのフィルター目詰まりの評価方法。 - 前記電極が負極である請求項1に記載の電極製造用スラリーのフィルター目詰まりの評価方法。
- 前記電算模写にゼロせん断粘度が5Pa・s以下であるスラリーを用いることを含む請求項1または2に記載の電極製造用スラリーのフィルター目詰まりの評価方法。
- 前記スラリーにせん断を加えた後、クロスオーバー周波数が0.5Hz以上である場合を、フィルター目詰まりと評価する請求項1から3のいずれか一項に記載の電極製造用スラリーのフィルター目詰まりの評価方法。
- 前記スラリーにせん断を加える前の位相角(δ)が、55〜70゜であり、前記スラリーにせん断を加えた後の位相角(δ)が、前記せん断前の位相角(δ)と15゜以上差が出る場合を、フィルター目詰まりと評価する請求項1から4のいずれか一項に記載の電極製造用スラリーのフィルター目詰まりの評価方法。
- 前記電算模写を通じて計算されたせん断速度が、2000s−1以上である請求項1から5のいずれか一項に記載の電極製造用スラリーのフィルター目詰まりの評価方法。
- 前記電算模写を通じて計算されたせん断速度が、2500s−1である請求項6に記載の電極製造用スラリーのフィルター目詰まりの評価方法。
- 前記電極製造用スラリーが、板状型の黒鉛を含む請求項1から7のいずれか一項に記載の電極製造用スラリーのフィルター目詰まりの評価方法。
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KR10-2017-0100054 | 2017-08-08 | ||
KR1020170100054A KR102026527B1 (ko) | 2017-08-08 | 2017-08-08 | 전극 제조용 슬러리의 필터 막힘 평가방법 |
PCT/KR2018/007459 WO2019031705A2 (ko) | 2017-08-08 | 2018-07-02 | 전극 제조용 슬러리의 필터 막힘 평가방법 |
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JP6759523B2 true JP6759523B2 (ja) | 2020-09-23 |
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US (1) | US11081683B2 (ja) |
EP (1) | EP3546920A4 (ja) |
JP (1) | JP6759523B2 (ja) |
KR (1) | KR102026527B1 (ja) |
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WO (1) | WO2019031705A2 (ja) |
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US11753914B2 (en) * | 2019-09-25 | 2023-09-12 | Nikon Corporation | Slurry analysis system using flow restriction |
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JP4692705B2 (ja) | 2001-06-12 | 2011-06-01 | 株式会社島津製作所 | 粘弾性材料の試験方法 |
DE10343654A1 (de) | 2003-09-20 | 2005-04-14 | Basf Coatings Ag | Strukturviskose, wässrige Dispersionen, Verfahren zu ihrer Herstellung und ihre Verwendung |
KR101723142B1 (ko) | 2005-12-23 | 2017-04-05 | 로비 가이드스, 인크. | 다수의 장치를 갖는 인터랙티브 미디어 안내 시스템 |
EP2046900A1 (de) | 2006-08-01 | 2009-04-15 | Innovent e.V. Technologieentwicklung | Umweltfreundliche, lösemittelfreie druckfarbe sowie ihre verwendung |
JP4355010B2 (ja) | 2006-10-04 | 2009-10-28 | 昭栄化学工業株式会社 | 積層電子部品用導体ペースト |
JP4377904B2 (ja) * | 2006-10-31 | 2009-12-02 | 株式会社東芝 | 電極の製造方法及び非水電解質電池の製造方法 |
US7757866B2 (en) * | 2007-12-20 | 2010-07-20 | Mccutchen Co. | Rotary annular crossflow filter, degasser, and sludge thickener |
JP2010203943A (ja) | 2009-03-04 | 2010-09-16 | Yamatake Corp | 導圧管の詰まり診断装置および詰まり診断方法 |
JP5401211B2 (ja) | 2009-08-21 | 2014-01-29 | 日清エンジニアリング株式会社 | 二次電池用正極材料の製造方法 |
US9484569B2 (en) | 2012-06-13 | 2016-11-01 | 24M Technologies, Inc. | Electrochemical slurry compositions and methods for preparing the same |
KR102188630B1 (ko) * | 2012-09-14 | 2020-12-08 | 미꾸니 시끼소 가부시키가이샤 | 아세틸렌블랙 분산 슬러리 및 리튬 이온 이차 전지 |
JP5580910B1 (ja) | 2013-02-20 | 2014-08-27 | 昭和電工株式会社 | 電池用電極の製造方法 |
WO2014132412A1 (ja) * | 2013-02-28 | 2014-09-04 | 株式会社 エー・アンド・デイ | 流動体のずり速度を求める方法、そのプログラム及び装置 |
KR102235689B1 (ko) | 2013-07-30 | 2021-04-02 | 삼성전자주식회사 | 유체 막힘 센싱 장치 및 유체 막힘 센싱 방법. |
US9564630B2 (en) | 2013-08-08 | 2017-02-07 | Nantek Instuments, Inc. | Anode active material-coated graphene sheets for lithium batteries and process for producing same |
WO2015093904A1 (ko) * | 2013-12-19 | 2015-06-25 | 주식회사 엘지화학 | 전극 활물질 슬러리의 제조방법 및 그 방법에 의해 제조된 전극 활물질 슬러리 |
JP6569548B2 (ja) | 2016-01-29 | 2019-09-04 | 東洋インキScホールディングス株式会社 | リチウムイオン二次電池用カーボンブラック分散液の製造方法 |
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WO2019031705A3 (ko) | 2019-04-04 |
EP3546920A2 (en) | 2019-10-02 |
JP2020502733A (ja) | 2020-01-23 |
CN110100167B (zh) | 2022-03-29 |
KR20190016182A (ko) | 2019-02-18 |
EP3546920A4 (en) | 2019-12-18 |
US20200127274A1 (en) | 2020-04-23 |
CN110100167A (zh) | 2019-08-06 |
KR102026527B1 (ko) | 2019-09-27 |
US11081683B2 (en) | 2021-08-03 |
WO2019031705A2 (ko) | 2019-02-14 |
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