Abstract: SET-LRP polymerization of acrylic monomers under acidic conditions is described. The source of the acidity may be the solvent (e.g., an acetic acid-containing solvent) or in the monomer content (e.g., acrylic acid or methacrylic acid, optionally in combination with other monomers such as methyl methacrylate).

Abstract: Electrode structures and electrochemical cells are provided. The electrode structures and/or electrochemical cells described herein may include one or more protective layers comprising a polymer layer and/or a gel polymer electrolyte layer. The polymer layer may be formed from the copolymerization of an olefinic monomer comprising at least one electron withdrawing group and an olefinic comonomer comprising at least one electron donating group. Methods for forming polymer layers are also provided.

Abstract: Electrode structures and electrochemical cells are provided. The electrode structures and/or electrochemical cells described herein may include one or more protective layers comprising a polymer layer and/or a gel polymer electrolyte layer. The polymer layer may be formed from the copolymerization of an olefinic monomer comprising at least one electron withdrawing group and an olefinic comonomer comprising at least one electron donating group. Methods for forming polymer layers are also provided.

Abstract: Gel electrolytes, especially gel electrolytes for electrochemical cells, are generally described. In some embodiments, the gel electrolyte layers comprise components a) to c). Component a) may be at least one layer of at least one polymer comprising polymerized units of: a1) at least one monomer containing an ethylenically unsaturated unit and an amido group and a2) at least one crosslinker. Component b) may be at least one conducting salt and component c) may be at least one solvent. Electrodes may comprise the components a), d) and e), wherein component a) may be at least one layer of at least one polymer as described herein. Component d) may be at least one electroactive layer and component e) may be at least one ceramic layer. Furthermore, electrochemical cells comprising component a) which may be at least one layer of at least one polymer as described herein, are also provided.

Abstract: Polymers for use as protective layers and other components in electrochemical cells are provided. In some embodiments, the electrochemical cell is a lithium-based electrochemical cell.

Abstract: A solid phase electrolyte composition containing at least one conducting salt and at least one random copolymer, wherein the random copolymer comprises 5 to 95 wt.-% polymerized units of monomers (a) and 95 to 5 wt.-% polymerized units of monomers (b), based on the total weight of the copolymer, wherein (a) is at least one functionalized polyether containing at least one polymerizable C—C double bond per molecule in average, and (b) is at least one ethylenically unsaturated monomer (b1) or a mixture of at least one ethylenically unsaturated monomer (b1) and at least one ethylenically unsaturated monomer (b2) wherein (b1) is selected from the group consisting of styrene, alpha-methyl styrene, maleic anhydride, N-phenylmaleimide, C1-C4 alkyl methacrylates, C1-C22 alkyl acrylates, acrylic acid, salts of acrylic acid, C1-C4 alkylacrylic acids, salts of C1-C4 alkylacrylic acids, acrylic amides, and vinyl alcohol derivates, and (b2) is selected from the group consisting of acrylonitrile and methacrylonitrile.

Abstract: The invention relates to thermoplastic molding compounds which contain impact-modified styrene/nitrile monomer copolymers, to molded products and films produced therefrom and to the use thereof. The impact modifiers used are linear A-B-A tri-block copolymers from hard polymer blocks A and a soft polymer block B, preferably polymethylmethacrylate-block-polybutylacrylate-block-polymethylmethacrylate.

Abstract: Polymers for use as protective layers and other components in electrochemical cells are provided. In some embodiments, the electrochemical cell is a lithium-based electrochemical cell.

Abstract: Gel electrolytes, especially gel electrolytes for electrochemical cells, are generally described. In some embodiments, the gel electrolyte layers comprise components a) to c). Component a) may be at least one layer of at least one polymer comprising polymerized units of: a1) at least one monomer containing an ethylenically unsaturated unit and an amido group and a2) at least one crosslinker. Component b) may be at least one conducting salt and component c) may be at least one solvent. Electrodes may comprise the components a), d) and e), wherein component a) may be at least one layer of at least one polymer as described herein. Component d) may be at least one electroactive layer and component e) may be at least one ceramic layer. Furthermore, electrochemical cells comprising component a) which may be at least one layer of at least one polymer as described herein, are also provided.

Abstract: Articles and methods including separators that can be used in electrochemical cells are provided. In some embodiments, a separator comprises at least one separator backbone (as component a)) and at least one polymer (as component b)). The polymer according to component b) may comprises polymerized units of at least one ethylenically unsaturated monomer having no additional functional groups and at least one ethylenically unsaturated anionic monomer. Processes for preparing the separators and the use of said separators in, for example, an electrochemical cell and, in particular, in a battery, are also provided. Electrochemical cells (e.g., a battery) containing a separator are also provided. In some embodiments, lithium-sulfur batteries that include a separator comprising charged groups (e.g., carboxylate groups) are provided.

Abstract: Electrode structures and electrochemical cells are provided. The electrode structures and/or electrochemical cells described herein may include one or more protective layers comprising a polymer layer and/or a gel polymer electrolyte layer. The polymer layer may be formed from the copolymerization of an olefinic monomer comprising at least one electron withdrawing group and an olefinic comonomer comprising at least one electron donating group. Methods for forming polymer layers are also provided.

Abstract: Electrode structures and electrochemical cells are provided. The electrode structures and/or electrochemical cells described herein may include one or more protective layers comprising a polymer layer and/or a gel polymer electrolyte layer. The polymer layer may be formed from the copolymerization of an olefinic monomer comprising at least one electron withdrawing group and an olefinic comonomer comprising at least one electron donating group. Methods for forming polymer layers are also provided.

Abstract: SET-LRP polymerization of acrylic monomers under acidic conditions is described. The source of the acidity may be the solvent (e.g., an acetic acid-containing solvent) or in the monomer content (e.g., acrylic acid or methacrylic acid, optionally in combination with other monomers such as methyl methacrylate).

Abstract: Process for preparing polymers by controlled free-radical polymerization, wherein the polymerization of one or more free-radically polymerizable monomers of the general formula (I) where R1, R2, R3 are each H, C1-C4-alkyl, R4 is C(?O)0R5, C(?O)NHR15, C(?O)NR5R6, OC(?O)CH3, C(?O)OH, CN, aryl, hetaryl, C(?O)OR5OH, C(?O)OR5Si(OR5)3, halogen, NHC(O)H, P(?O)(OR7)2, R5 is C1-C20-alkyl, R15 is C1-C20-alkyl, R6 is C1-C20-alkyl, R7 is H, C1-C20-alkyl, in the presence of a. one or more catalysts comprising Cu in the form of Cu(0), Cu(I), Cu(II) or mixtures thereof, b. one or more initiators selected from the group consisting of organic halides or pseudohalides, c. one or more ligands, d. optionally one or more solvents, e. optionally one or more inorganic halide salts, and comprises the steps i) addition of the catalyst a., ii) optionally addition of monomers of the general formula (I), iii) optionally addition of solvent d., iv) addition of ligand c., v) addition of initiator b.