JP5443477B2 - 2次電池用微細多孔膜 - Google Patents
2次電池用微細多孔膜 Download PDFInfo
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- JP5443477B2 JP5443477B2 JP2011509415A JP2011509415A JP5443477B2 JP 5443477 B2 JP5443477 B2 JP 5443477B2 JP 2011509415 A JP2011509415 A JP 2011509415A JP 2011509415 A JP2011509415 A JP 2011509415A JP 5443477 B2 JP5443477 B2 JP 5443477B2
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- polyethylene
- polypropylene
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- filler
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/12—Mixture of at least two particles made of different materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/58—Cuttability
- B32B2307/581—Resistant to cut
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/10—Batteries
-
- 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
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249978—Voids specified as micro
- Y10T428/24998—Composite has more than two layers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cell Separators (AREA)
- Laminated Bodies (AREA)
Description
2:微細多孔膜
3:テープ
C=(8FTV)/(πD2(P2−1))
F=流速
T=サンプル厚さ
V=気体の粘度(N2について0.185)
D=サンプル直径
P=圧力
Claims (9)
- 3層の微細多孔膜であって、
中間層は、溶解温度150℃以上のポリプロピレン20乃至80重量%と、溶解温度140℃以上のフィラー80乃至20重量%とを含み、
中間層内のフィラーとポリプロピレンの総含量が60重量%以上であり、
両表面層はポリエチレンを含み、両表面層のうち一層以上はポリエチレンを70重量%以上含み、
前記溶解温度140℃以上のフィラーは、シリコンジオキシド(SiO 2 )、アルミニウムオキシド(Al 2 O 3 )、カルシウムカーボネート(CaCO 3 )、チタニウムジオキシド(TiO 2 )、SiS 2 、SiPO 4 、MgO、ZnO、BaTiO 3 、及び、これらの混合物からなる群から選ばれ、フィラーの平均粒子サイズが0.01乃至5μmである微細多孔膜。 - 前記中間層は、溶解温度150℃以上のポリプロピレン20乃至80重量%と、溶解温度140℃以上のフィラー80乃至20重量%とを含み、
中間層内のフィラーとポリプロピレンの総含量が80重量%以上であり、
両表面層は各々ポリエチレンを80重量%以上含む請求項1に記載の微細多孔膜。 - 前記中間層は、溶解温度150℃以上のポリプロピレン30乃至70重量%と、溶解温度140℃以上のフィラー70乃至30重量%とからなり、
両表面層はポリエチレンからなる請求項2に記載の微細多孔膜。 - 前記中間層の厚さが0.5μm以上であり、全体厚さが7乃至50μmであり、中間層の全体厚さに対する割合が1%以上50%未満である請求項1乃至3のいずれかに記載の微細多孔膜。
- 前記膜の穿孔強度が0.12N/μm以上、透過度が1.0×10−5ダーシー以上、溶融破断温度が150℃以上である請求項4に記載の微細多孔膜。
- 前記膜の穿孔強度が0.20N/μm以上、透過度が1.5×10−5ダーシー以上、溶融破断温度が160℃以上である請求項5に記載の微細多孔膜。
- 請求項1乃至3のいずれか1項に記載の3層微細多孔膜を含む多層微細多孔膜。
- 請求項4に記載の3層微細多孔膜を含む多層微細多孔膜。
- 請求項5または6に記載の3層微細多孔膜を含む多層微細多孔膜。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR10-2008-0045735 | 2008-05-16 | ||
KR1020080045735A KR101439478B1 (ko) | 2008-05-16 | 2008-05-16 | 2차 전지용 미세다공막 |
PCT/KR2009/002561 WO2009139585A2 (en) | 2008-05-16 | 2009-05-14 | Microporous polyolefin film with thermally stable porous layer at high temperature |
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JP2011521413A JP2011521413A (ja) | 2011-07-21 |
JP5443477B2 true JP5443477B2 (ja) | 2014-03-19 |
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JP2011509415A Active JP5443477B2 (ja) | 2008-05-16 | 2009-05-14 | 2次電池用微細多孔膜 |
Country Status (6)
Country | Link |
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US (1) | US20110064929A1 (ja) |
EP (1) | EP2274787B1 (ja) |
JP (1) | JP5443477B2 (ja) |
KR (1) | KR101439478B1 (ja) |
CN (1) | CN102017268B (ja) |
WO (1) | WO2009139585A2 (ja) |
Families Citing this family (12)
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KR20100135369A (ko) * | 2009-06-17 | 2010-12-27 | 에스케이에너지 주식회사 | 고내열성 유/무기 피복층을 갖는 폴리에틸렌계 복합 미세다공막 |
KR101812535B1 (ko) * | 2009-06-19 | 2017-12-27 | 도레이 카부시키가이샤 | 다층 미다공막 |
JPWO2012096248A1 (ja) * | 2011-01-11 | 2014-06-09 | 東レバッテリーセパレータフィルム株式会社 | 多層微多孔膜、かかる膜の製造方法、およびかかる膜の使用 |
CN102810655A (zh) * | 2011-05-30 | 2012-12-05 | 东莞新能源科技有限公司 | 锂离子电池复合隔离膜 |
WO2013018900A1 (ja) * | 2011-08-03 | 2013-02-07 | 三菱レイヨン株式会社 | 多孔質膜の製造方法および製造装置 |
CN103354279A (zh) * | 2013-06-20 | 2013-10-16 | 深圳中兴创新材料技术有限公司 | 一种用于锂离子电池的三层隔膜 |
TWI518968B (zh) * | 2014-12-10 | 2016-01-21 | 財團法人工業技術研究院 | 一種多層孔隙膜及其製備方法 |
JP6153992B2 (ja) * | 2015-11-30 | 2017-06-28 | 住友化学株式会社 | 非水電解液二次電池用セパレータ |
KR102515451B1 (ko) * | 2016-04-15 | 2023-03-30 | 에스케이이노베이션 주식회사 | 이차 전지용 다공성 분리막 및 이의 제조방법 |
JP6595725B2 (ja) | 2016-10-24 | 2019-10-23 | 住友化学株式会社 | セパレータ、およびセパレータを含む二次電池 |
CN114122622A (zh) * | 2021-11-15 | 2022-03-01 | 合肥国轩高科动力能源有限公司 | 一种陶瓷协同隔膜及其原料组合物与制备方法 |
CN114750494B (zh) * | 2022-03-28 | 2023-12-01 | 合肥高贝斯医疗卫生用品有限公司 | 防病毒、高透湿、单面抗静电膜及其制备方法 |
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US5641565A (en) * | 1991-07-05 | 1997-06-24 | Asahi Kasei Kogyo Kabushiki Kaisha | Separator for a battery using an organic electrolytic solution and method for preparing the same |
TW297171B (ja) * | 1994-12-20 | 1997-02-01 | Hoechst Celanese Corp | |
US6080507A (en) * | 1998-04-13 | 2000-06-27 | Celgard Inc. | Trilayer battery separator |
DE19859334A1 (de) * | 1998-12-22 | 2000-07-06 | Bp Chemicals Plastec Gmbh | Siegelbare Verbundfolie |
US20020136945A1 (en) * | 2000-01-18 | 2002-09-26 | Call Ronald W. | Multilayer battery separators |
TWI315591B (en) * | 2000-06-14 | 2009-10-01 | Sumitomo Chemical Co | Porous film and separator for battery using the same |
US6949315B1 (en) * | 2004-05-12 | 2005-09-27 | Garrin Samii | Shutdown separators with improved properties |
JP4686253B2 (ja) * | 2005-05-19 | 2011-05-25 | 三菱樹脂株式会社 | 積層型多孔性フィルム |
JP2007123238A (ja) * | 2005-09-29 | 2007-05-17 | Sanyo Electric Co Ltd | 非水電解質電池、非水電解質電池用セパレータ、及びこのセパレータの製造方法 |
EP1942000B1 (en) * | 2005-10-24 | 2018-12-12 | Toray Industries, Inc. | Polyolefin multilayer microporous film, method for producing same and battery separator |
-
2008
- 2008-05-16 KR KR1020080045735A patent/KR101439478B1/ko active IP Right Grant
-
2009
- 2009-05-14 US US12/992,621 patent/US20110064929A1/en not_active Abandoned
- 2009-05-14 EP EP09746764.1A patent/EP2274787B1/en active Active
- 2009-05-14 JP JP2011509415A patent/JP5443477B2/ja active Active
- 2009-05-14 WO PCT/KR2009/002561 patent/WO2009139585A2/en active Application Filing
- 2009-05-14 CN CN200980115829.3A patent/CN102017268B/zh active Active
Also Published As
Publication number | Publication date |
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WO2009139585A3 (en) | 2010-03-11 |
KR20090119592A (ko) | 2009-11-19 |
CN102017268A (zh) | 2011-04-13 |
EP2274787A4 (en) | 2015-06-10 |
KR101439478B1 (ko) | 2014-09-11 |
JP2011521413A (ja) | 2011-07-21 |
EP2274787A2 (en) | 2011-01-19 |
CN102017268B (zh) | 2014-07-23 |
US20110064929A1 (en) | 2011-03-17 |
EP2274787B1 (en) | 2018-11-07 |
WO2009139585A2 (en) | 2009-11-19 |
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