WO2023075553A1 - 전극 절연 코팅용 조성물 및 이를 이용한 전극 - Google Patents
전극 절연 코팅용 조성물 및 이를 이용한 전극 Download PDFInfo
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- WO2023075553A1 WO2023075553A1 PCT/KR2022/016843 KR2022016843W WO2023075553A1 WO 2023075553 A1 WO2023075553 A1 WO 2023075553A1 KR 2022016843 W KR2022016843 W KR 2022016843W WO 2023075553 A1 WO2023075553 A1 WO 2023075553A1
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- acid
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- insulation coating
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- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 235000015041 whisky Nutrition 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- 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
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
- H01M4/623—Binders being polymers fluorinated polymers
-
- 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
Abstract
Description
조성 | 분산 공정 | ||||||
무기 입자 | 분산제 | 바인더 (PVdF) |
용매 (NMP) |
Pass 수 | |||
종류 | 함량 (wt%) |
종류 | 함량 (wt%) |
함량 (wt%) |
함량 (wt%) |
||
실시예 1 | 보헤마이트 | 17 | P104 | 0.3 | 2.7 | 80 | 7 |
실시예 2 | 보헤마이트 | 17 | P104 | 0.6 | 2.4 | 80 | 6 |
실시예 3 | 보헤마이트 | 17 | P104 | 1 | 2 | 80 | 4 |
실시예 4 | 보헤마이트 | 17 | P104 | 0.6 | 2.4 | 80 | 8 |
실시예 5 | 보헤마이트 | 17 | P104 | 0.6 | 2.4 | 80 | 4 |
비교예 1 | 보헤마이트 | 17 | 없음 | 0 | 3 | 80 | 8 |
비교예 2 | 보헤마이트 | 17 | H-NBR | 0.6 | 2.4 | 80 | 8 |
비교예 3 | 보헤마이트 | 17 | P104 | 0.1 | 2.9 | 80 | 8 |
비교예 4 | 보헤마이트 | 17 | P104 | 2 | 1 | 80 | 4 |
비교예 5 | 알루미나 | 17 | P104 | 0.6 | 2.4 | 80 | 6 |
조성물 | 전극 절연 코팅용 조성물 | 코팅 물성 | |||||
D10
(μm) |
D50
(μm) |
D90
(μm) |
점도 (cps) |
저장 안정성 | 코팅성 | 접착성 | |
실시예 1 | 0.24 | 0.6 | 1.37 | 240 | O | O | O |
실시예 2 | 0.22 | 0.56 | 1.3 | 220 | O | O | O |
실시예 3 | 0.21 | 0.53 | 1.2 | 180 | O | O | O |
실시예 4 | 0.19 | 0.42 | 1.03 | 170 | O | O | O |
실시예 5 | 0.25 | 0.65 | 1.48 | 290 | O | O | O |
비교예 1 | 20.5 | 78.4 | 207 | 8800이상 | X | - | - |
비교예 2 | 1.79 | 6.18 | 31.7 | 5500 | X | - | - |
비교예 3 | 0.41 | 2.19 | 10.1 | 1200 | X | - | - |
비교예 4 | 0.19 | 0.43 | 1.01 | 110 | O | X | X |
비교예 5 | 0.25 | 0.62 | 1.45 | 210 | O | O | X |
Claims (12)
- 보헤마이트 입자;분산제;바인더; 및용매를 포함하고,상기 분산제는 2종 이상의 지방산 화합물을 포함하고, 상기 보헤마이트 입자 100 중량부에 대하여 1.2 중량부 내지 8.8 중량부로 포함되는, 전극 절연 코팅용 조성물.
- 제1항에 있어서,상기 분산제는 탄소수가 서로 다른 2종 이상의 지방산 화합물을 포함하는, 전극 절연 코팅용 조성물.
- 제1항에 있어서,상기 분산제는 C15 내지 C30인 불포화 지방산 화합물 및 C15 내지 C30인 포화 지방산 화합물을 포함하는, 전극 절연 코팅용 조성물.
- 제3항에 있어서,상기 C15 내지 C30인 불포화 지방산 화합물은 올레산(Oleic acid), 팔미톨레산(Palmitoleic acid), 시스-헵타데세노익산(Cis-Heptadecenoic acid), 바크센산(Vaccenic acid), 엘라이드산(Elaidic acid), 리놀레산(linolenic acid), 아라키돈산(Arachidonic acid), 에이코센산(Eicosanoic acid), 에루스산(Erucic acid), 에이코사펜타엔산(Eicosapentaenoic acid, EPA), 도코사헥사엔산(Docosahexaenoic acid, DHA), 네르본산(Nervonic acid)으로 이루어진 군으로부터 선택되는 것인, 전극 절연 코팅용 조성물.
- 제3항에 있어서,상기 C15 내지 C30인 포화 지방산 화합물은 팔미트산(Palmitic acid), 스테아르산(Stearic acid), 아라키드산(Arachidic acid), 베헨산(Behenic acid), 리그노세르산(Lignoceric acid)으로 이루어진 군으로부터 선택되는 것인, 전극 절연 코팅용 조성물.
- 제3항에 있어서,상기 분산제는, 올레산(Oleic acid), 스테아르산(Stearic acid), 팔미트산(Palmitic acid) 및 네르본산(Nervonic acid)을 포함하는, 전극 절연 코팅용 조성물.
- 제6항에 있어서,상기 올레산, 스테아르산, 팔미트산, 네르본산은 (5 내지 25) : (5 내지 25) : (5 내지 25) : (5 내지 25)의 중량비로 포함되는 것인, 전극 절연 코팅용 조성물.
- 제1항에 있어서,상기 바인더는 폴리비닐리덴플루오라이드인, 전극 절연 코팅용 조성물.
- 제1항에 있어서,상기 용매는 아세톤, 테트라히드로퓨란, 아세토니트릴, 디메틸포름아미드, 디메틸설폭사이드, 디메틸아세트아마이드 및 N-메틸-2-피롤리돈(N-Methyl-2-Pyrrolidone, NMP)로 이루어진 군에서 선택되는 1종 이상인, 전극 절연 코팅용 조성물.
- 제1항에 있어서,상기 전극 절연 코팅용 조성물 100 중량부에 대하여,상기 보헤마이트 입자 10 내지 25 중량부;상기 분산제 0.2 내지 1.5 중량부;상기 바인더 1 내지 5 중량부; 및상기 용매 70 내지 90 중량부를 포함하는 것인 전극 절연 코팅용 조성물.
- 제1항에 있어서,상기 전극 절연 코팅용 조성물은 고형분 함량이 10 중량% 내지 30 중량%인, 전극 절연 코팅용 조성물.
- 집전체, 전극 활물질층, 및 절연 코팅층을 포함하고,상기 전극 활물질층 및 상기 절연 코팅층은 상기 집전체 상에 배치되며,상기 절연 코팅층은 청구항 1 내지 11 중 어느 한 항의 전극 절연 코팅용 조성물에 의해 형성되는, 전극.
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EP22887747.8A EP4276971A1 (en) | 2021-11-01 | 2022-10-31 | Composition for electrode insulation coating and electrode using same |
CN202280014200.5A CN116868414A (zh) | 2021-11-01 | 2022-10-31 | 电极绝缘涂料组合物及使用其的电极 |
JP2023547125A JP2024505656A (ja) | 2021-11-01 | 2022-10-31 | 電極絶縁コーティング用組成物およびそれを用いた電極 |
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KR102096411B1 (ko) * | 2015-09-02 | 2020-04-02 | 주식회사 엘지화학 | 절연층과 상이한 방법으로 형성된 접착층을 포함하는 전극-분리막 단위체 및 이의 제조방법 |
US20200220157A1 (en) * | 2017-07-03 | 2020-07-09 | Vehicle Energy Japan Inc. | Method for manufacturing secondary battery |
CN112335088A (zh) * | 2018-06-19 | 2021-02-05 | 日本汽车能源株式会社 | 锂离子二次电池及其制造方法 |
KR20210114285A (ko) * | 2020-03-10 | 2021-09-23 | 삼성에스디아이 주식회사 | 세퍼레이터용 코팅조성물, 이를 이용한 세퍼레이터의 제조 방법, 세퍼레이터 및 이를 채용한 리튬 전지 |
JP2021153046A (ja) * | 2020-03-23 | 2021-09-30 | 関西ペイント株式会社 | リチウムイオン二次電池集電体用絶縁ペースト |
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KR102096411B1 (ko) * | 2015-09-02 | 2020-04-02 | 주식회사 엘지화학 | 절연층과 상이한 방법으로 형성된 접착층을 포함하는 전극-분리막 단위체 및 이의 제조방법 |
US20200220157A1 (en) * | 2017-07-03 | 2020-07-09 | Vehicle Energy Japan Inc. | Method for manufacturing secondary battery |
CN112335088A (zh) * | 2018-06-19 | 2021-02-05 | 日本汽车能源株式会社 | 锂离子二次电池及其制造方法 |
KR20210114285A (ko) * | 2020-03-10 | 2021-09-23 | 삼성에스디아이 주식회사 | 세퍼레이터용 코팅조성물, 이를 이용한 세퍼레이터의 제조 방법, 세퍼레이터 및 이를 채용한 리튬 전지 |
JP2021153046A (ja) * | 2020-03-23 | 2021-09-30 | 関西ペイント株式会社 | リチウムイオン二次電池集電体用絶縁ペースト |
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