公开(公告)号：US20200172719A1

公开(公告)日：2020-06-04

申请号：US16630600

申请日：2018-07-16

Applicant: Arkema Inc.

Inventor： Gregory Scott O'BRIEN ,  Ramin AMIN-SANAYEI ,  Saeid ZERAFATI ,  James T. GOLDBACH

IPC: C08L27/16 ,  C08K7/14 ,  C08K9/08 ,  C08K7/06 ,  C08F214/28

Abstract: The invention relates to fluoropolymer composites having a fluoropolymer matrix containing a functionalized fluoropolymer composition, and reinforced with fibers. The fibers can be chopped fibers, long fibers, or a mixture thereof, and the fluoropolymer matrix preferably is based on polyvinylidene fluoride. Any type of fibers, sized or unsized may be used with the functionalized fluoropolymer matrix composition to form the fluoropolymer composite.

公开(公告)号：US20210184311A1

公开(公告)日：2021-06-17

申请号：US16760193

申请日：2018-10-30

Applicant: Arkema Inc.

Inventor： Amy A. LEFEBVRE ,  Thomas FINE ,  James F. COFFEY ,  Ramin AMIN-SANAYEI ,  Wensheng HE

IPC: H01M50/426 ,  H01G11/52 ,  H01M50/443 ,  H01M50/446 ,  H01M50/449 ,  H01M8/1048

Abstract: The invention relates to a separator for non-aqueous-type electrochemical devices that has been coated with a polymer binder composition having polymer particles of two different sizes, one fraction of the polymer particles with a weight average particle size of less than 1.5 micron, and the other fraction of the polymer particles with a weight average particle size of greater than 1.5 microns. The bi-modal polymer particles provide an uneven coating surface that creates voids between the separator and adjoining electrodes, allowing for expansion of the battery components during the charging and discharging cycle, with little or no increase in the size of the battery itself. The bi-modal polymer coating can be used in non-aqueous-type electrochemical devices, such as batteries and electric double layer capacitors.

公开(公告)号：US20180072829A1

公开(公告)日：2018-03-15

申请号：US15557977

申请日：2016-03-15

Applicant: Arkema Inc.

Inventor： Ramin AMIN-SANAYEI ,  Wensheng HE ,  James F. COFFEY ,  Chris CAVALIER ,  Steven M. BAXTER ,  Sara REYNAUD

IPC: C08F114/22

CPC classification number: C08F114/22 ,  C08F2/38 ,  C08F214/222

Abstract: The invention relates to fluoropolymers that have been modified with low molecular weight, polymeric chain transfer agents, and uses of the modified fluoropolymers. The modified fluoropolymers provide enhanced properties to the fluoropolymer, such as increased adhesion, and hydrophilic characteristics. The modified functional fluoropolymers are useful in many applications, including as binders in electrode-forming compositions and separator compositions, for hydrophilic membranes and hollow fiber membranes, as an aqueous and a solvent cast coating for baked decorative and protective coatings, and as a tie layer between a fluoropolymer layer and an incompatible polymer layer.

公开(公告)号：US20180047986A1

公开(公告)日：2018-02-15

申请号：US15549736

申请日：2016-02-05

Applicant: Arkema Inc.

Inventor： Sean M. Stabler ,  Ramin AMIN-SANAYEI

IPC: H01M4/62 ,  H01M4/131

CPC classification number: H01M4/622 ,  H01J37/256 ,  H01M2/166 ,  H01M4/131 ,  H01M4/623 ,  H01M10/052

Abstract: The invention relates to a dry free-flowing composite of a sub-micron polymer binder particles and interactive materials, and articles formed therefrom. The polymer particles are formed from a dilute latex polymer and blended with interactive materials, then the blend is spray-dried, to form a dry blend in which less than 10% of all polymer particles are in an agglomerated form. The polymer is preferably a polyvinylidene fluoride, such as Kyblock® PVDF from Arkema. The dry blend will be used to form articles and coatings by many means, for example forming a three dimensional article by heat and pressure, it can be redispersed into an aqueous coating composition, or can be electro-coated onto a substrate.

公开(公告)号：US20180044515A1

公开(公告)日：2018-02-15

申请号：US15557147

申请日：2016-03-10

Applicant: Arkema Inc.

Inventor： Saeid ZERAFATI ,  Ramin AMIN-SANAYEI ,  James J. HENRY ,  Gregory S. O'BRIEN

IPC: C08L27/16

Abstract: The invention relates to blends containing polymers of vinylidene fluoride, having low ductile-brittle transition temperatures and having excellent low temperature impact properties while maintaining the positive aspects of unmodified vinylidene fluoride-containing polymers. The blends of this invention are produced by adding a core-shell impact modifier (CSIM) comprised of a polysiloxane core and a shell compatible with vinylidene fluoride-containing polymer. The blends are further characterized by the presence of a heterogeneous copolymer composition comprised of two or more distinct phases and/or at least one flame and smoke suppressant. The preparation of these new blends can be done by conventional thermoplastic compounding techniques such as twin screw compounding; alternatively, the CSIM can be introduced earlier, such as in the latex. The unique properties of the new blends make them useful in end-use applications where those properties provide performance advantages, such as in wires & cables and in oil and gas applications.

公开(公告)号：US20170125815A1

公开(公告)日：2017-05-04

申请号：US15315965

申请日：2015-06-03

Applicant: Arkema Inc.

Inventor： Ramin AMIN-SANAYEI ,  Jason POMANTE ,  Wensheng HE

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/139 ,  H01M4/04

CPC classification number: H01M4/623 ,  H01M4/0404 ,  H01M4/0416 ,  H01M4/139 ,  H01M4/622 ,  H01M10/052 ,  H01M10/0525

Abstract: The invention relates to an electrode formed by the blending of dry active powdery electrode forming materials with an aqueous binder dispersion, and the subsequent adhering of the wet binder/dry active powdery electrode-forming materials blend to an electroconductive substrate, resulting in an electrode. The aqueous binder is preferably a fluoropolymer, and more preferably polyvinylidene fluoride (PVDF). The hybrid process provides the good dispersion and small particle size of a wet process, with the energy savings and reduced environmental impact of a dry process. The resulting electrode is useful in energy-storage devices.

公开(公告)号：US20160133988A1

公开(公告)日：2016-05-12

申请号：US14997748

申请日：2016-01-18

Applicant: Arkema Inc.

Inventor： Ramin AMIN-SANAYEI ,  Scott R. GABOURY

IPC: H01M10/0525 ,  C09D127/16 ,  H01G11/30 ,  H01M4/62 ,  H01G11/52 ,  C08K5/1565 ,  H01M2/16

CPC classification number: H01M10/0525 ,  C08K5/1565 ,  C09D127/16 ,  F04C15/0096 ,  H01G11/26 ,  H01G11/30 ,  H01G11/38 ,  H01G11/48 ,  H01G11/52 ,  H01M2/1686 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/133 ,  H01M4/136 ,  H01M4/62 ,  H01M4/623 ,  Y02E60/13 ,  Y10T428/3154

Abstract: This invention relates to a waterborne fluoropolymer composition useful for the fabrication of Li-ion-Battery (LIB) electrodes. The fluoropolymer composition contains an organic carbonate compound, which is more environmentally friendly than other fugitive adhesion promoters currently used in waterborne fluoropolymer binders. An especially useful organic carbonate compound is ethylene carbonate (EC) and vinylene carbonate (VC), which are solids at room temperature, and other carbonates which are liquid at room temperature such as propylene carbonate, methyl carbonate and ethyl carbonate. The composition of the invention is low cost, environmentally friendly, safer, and has enhanced performance compared to current compositions.

Abstract translation: 本发明涉及可用于制造锂离子电池（LIB）电极的水性氟聚合物组合物。 氟聚合物组合物含有有机碳酸酯化合物，其比目前在水性氟聚合物粘合剂中使用的其它短效粘合促进剂更环保。 特别有用的有机碳酸酯化合物是在室温下为固体的碳酸亚乙酯（EC）和碳酸亚乙烯酯（VC），以及其它在室温下为液体的碳酸酯，例如碳酸亚丙酯，碳酸甲酯和碳酸乙酯。 本发明的组合物低成本，环保，更安全，并且与现有组合物相比具有增强的性能。

公开(公告)号：US20150340676A1

公开(公告)日：2015-11-26

申请号：US14410674

申请日：2013-11-01

Applicant: Arkema Inc.

Inventor： John Schmidhauser ,  Scott R. GABOURY ,  Ramin AMIN-SANAYEI ,  Chirstophe ROGER ,  Wensheng HE ,  Rosemary HEINZE

IPC: H01M2/16 ,  H01M2/14

CPC classification number: H01M2/1673 ,  H01G11/52 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/1686 ,  Y02E60/13

Abstract: The invention relates to integrated electrode separators (IES), and their use in lithium ion batteries as replacements for free standing separators. The IES results from coating an electrode with a fluoropolymer aqueous-based emulsion or suspension, and drying the coating to produce a tough, porous separator layer on the electrodes. The aqueous fluoropolymer coating may optionally contain dispersed inorganic particles and other additives to improve electrode performance such as higher ionic conduction or higher temperature use. The IES provides several advantages, including a thinner, more uniform separator layer, and the elimination of a separate battery component (separator membrane) for a simpler and cost-saving manufacturing process. The aqueous separator coating can be used in combination with a solvent cast electrode as well as an aqueous cast electrode either in two separate process steps, or in a one-step process.

Abstract translation: 本发明涉及一体化电极分离器（IES），它们在锂离子电池中用作独立分离器的替代物。 IES通过用含氟聚合物水性乳液或悬浮液涂覆电极，并干燥涂层以在电极上产生坚韧的多孔隔离层。 含氟聚合物涂层可以任选地包含分散的无机颗粒和其它添加剂以改善电极性能，例如更高的离子传导或更高的温度使用。 IES提供了几个优点，包括更薄，更均匀的隔离层，以及消除单独的电池组件（隔膜），以实现更简单和节省成本的制造工艺。 水分离器涂层可以在两个单独的工艺步骤中或在一步法中与溶剂流延电极以及水性浇铸电极组合使用。