Abstract: Methods, systems, and devices for free-space optical communications. An aircraft includes a flat optical communication terminal on an external surface of the aircraft, the flat optical communication terminal being configured to communicate with a ground station via a free-space optical communication link.

Abstract: A carrier board element is provided for the cell connectors of a battery having a plurality of battery cells. The carrier board element has a plurality of cell holders uniformly spaced apart from each other. At least one locking element for the locking in of a cell connector is associated with each of the cell holders. The locking element is arranged on the carrier board element. A plurality of cell connectors can be captively locked in one over the other at the locking elements.

Abstract: An electrochemical energy storage apparatus, in particular a rechargeable lithium-ion battery, having at least one current collector device with at least one current conductor arm, and at least one energy storage cell which has at least one anode, one cathode and one separator. The separator touches the anode and the cathode at least in sections in, in each case, a separator contact area. The current conductor arm can be electrically conductively connected to, in each case, at least one anode or cathode by way of a current output conductor contact area. A surface normal on the current output conductor contact area and a surface normal on the separator contact area form an acute angle a. This angle a is selected from a range which is greater than 5°, with preference greater than 15°, preferably greater than 25° and particularly preferably greater than 35°, and furthermore the angle ? is less than or equal to 90°, with preference less than 75°, preferably less than 65° and particularly preferably less than 45°.

Abstract: A carrier board element is provided for the cell connectors of a battery having a plurality of battery cells. The carrier board element has a plurality of cell holders uniformly spaced apart from each other. At least one locking element for the locking in of a cell connector is associated with each of the cell holders. The locking element is arranged on the carrier board element. A plurality of cell connectors can be captively locked in one over the other at the locking elements.

Abstract: An energy storage cell includes an electrically conductive housing having at least one first, one second, and one third outer wall, with the first outer wall being located at a distance from the second outer wall, and with the third outer wall connecting the first and second outer walls to one another. At least one electrochemical element is disposed in the housing having one anodic connection and one cathodic connection. An anodic current tap on the first outer wall is connected to the anodic connection in an electrically conductive fashion, and a cathodic current tap is connected in an electrically conductive fashion to the first or third outer wall. The cathodic connection is connected in the interior of the housing to the second outer wall in an electrically and thermally conductive fashion.

Abstract: An electrochemical energy storage apparatus, in particular a rechargeable lithium-ion battery, having at least one current collector device with at least one current conductor arm, and at least one energy storage cell which has at least one anode, one cathode and one separator. The separator touches the anode and the cathode at least in sections in, in each case, a separator contact area. The current conductor arm can be electrically conductively connected to, in each case, at least one anode or cathode by way of a current output conductor contact area. A surface normal on the current output conductor contact area and a surface normal on the separator contact area form an acute angle ?. This angle ? is selected from a range which is greater than 5°, with preference greater than 15°, preferably greater than 25° and particularly preferably greater than 35°, and furthermore the angle ? is less than or equal to 90°, with preference less than 75°, preferably less than 65° and particularly preferably less than 45°.

Abstract: An energy storage cell includes an electrically conductive housing having at least one first, one second, and one third outer wall, with the first outer wall being located at a distance from the second outer wall, and with the third outer wall connecting the first and second outer walls to one another. At least one electrochemical element is disposed in the housing having one anodic connection and one cathodic connection. An anodic current tap on the first outer wall is connected to the anodic connection in an electrically conductive fashion, and a cathodic current tap is connected in an electrically conductive fashion to the first or third outer wall. The cathodic connection is connected in the interior of the housing to the second outer wall in an electrically and thermally conductive fashion.

Abstract: An energy storage module, in particular for supplying electrical energy in a motor vehicle, includes a plurality of prismatic storage cells, each having a front side on which at least one power tap is arranged and having a back side opposing the front side, as well as longitudinal member having two opposing outer walls. The back side of at least one storage cell is positioned against each outer wall of the longitudinal member.

Abstract: The invention relates to a method and an installation for separating sulphur dioxide from exhaust gas, wherein sea water is added to the exhaust gas in an absorption column and the sea water charged with sulphur compounds is extracted from the liquid sump of the absorption column and fresh sea water is added thereto. In order to omit the very expensive and large secondary reaction basis according to the state of the art, it is proposed to extract the liquid, which contains the bisulphates, from the liquid sump of the absorption column and to mix it with fresh sea water in a pipeline for the purpose of sulphate formation and pH adjustment (neutralization). The invention is based upon the finding that the sulphate formation and pH adjustment are completed after a reaction time comprised between 1 and 2 minutes. Thus, the large and expensive secondary reaction basin can be omitted.

Abstract: The invention relates to a method and an installation for separating sulphur dioxide from exhaust gas, wherein sea water is added to the exhaust gas in an absorption column and the sea water charged with sulphur compounds is extracted from the liquid sump of the absorption column and fresh sea water is added thereto. In order to omit the very expensive and large secondary reaction basis according to the state of the art, it is proposed to extract the liquid, which contains the bisulphates, from the liquid sump of the absorption column and to mix it with fresh sea water in a pipeline for the purpose of sulphate formation and pH adjustment (neutralization). The invention is based upon the finding that the sulphate formation and pH adjustment are completed after a reaction time comprised between 1 and 2 minutes. Thus, the large and expensive secondary reaction basin can be omitted.

Abstract: The invention relates to a molding composition based on fluoropolymers which additionally contain from 1 to 50% by weight of at least one polymer containing sulfoxide groups. The polymer containing sulfoxide groups comprises, in particular, polyarylene sulfoxide units of the formula: —(—C6H4—SO—)—.

Abstract: The invention relates to a sensor comprising a piezoelectric crystal with a polyarylene thioether-containing coating, the coating containing at least one polyarylene system having repeating units of the formula I, —[(Ar1)n—X]m—[(Ar2)i—Y]j—[(Ar3)k—Z]l—[(Ar4)o—W]p—  (I) which contain at least one thioether group, in which Ar1, Ar2, Ar3 and Ar4 are identical or different aryl systems having from 6 to 18 carbon atoms, W, X, Y and Z are identical or different linking groups, selected from the group comprising —SO2—, —S—, —SO—, —O—, —CO—, —CO2—, alkylene or alkylidene having from 1 to 6 carbon atoms and —NR1—, where R1 is an alkyl or alkylide group having from 1 to 6 carbon atoms and at least one linking group must be —S—, n, m, i, j, k, l, o, p are, equal or different, integers zero, 1, 2, 3 or 4, their sum havin

Abstract: The invention relates to a process for the chlorosulfonation of polyarylene sulfide in which the polyarylene sulfide is completely dissolved in chlorosulfonic acid at a temperature of -10 to +20 C., then agitated at reaction temperatures in the +5 to +20 C. range for a reaction time of 180 min at the most, possibly with the addition of oleum or acetic anhydride and the precipitated in an aqueous medium. The polyarylene sulfide is preferably poly-p-phenylene sulfide. The invention also relates to chlorosulfonated polyarylene sulfide produced by this process, which dissolves in a quantity of 10 to 50 wt % in N-methyl pyrrolidone and has a mean molecular weight Mw of >50,000 g/mol. Finally, the invention also relates to the use of chlorosulfonated polyarylene sulfide for the production of molding, foils, fibres or diaphragms with a proton conductivity in the 2 to 200 mS/cm range.

Abstract: The present invention relates to a process for obtaining polyarylene sulfide from polyarylene sulfide-containing material. For this purpose, the polyarylene sulfide-containing material is treated with a solvent in which it dissolves, and is subsequently reprecipitated. The invention also relates to the purification of polyarylene sulfide-containing material by separating off extraneous substances, to polyphenylene sulfide particles having a specific surface area of at least 80 m.sup.2 /g and to their use as filter material.

Abstract: Oxidation product of polyarylene sulfides comprising recurring units of the formula.brket open-st.C.sub.6 H.sub.4 --S.brket close-st. (I)in the form of a compound comprising recurring units of the formula.brket open-st..paren open-st.C.sub.6 H.sub.4 --S.paren close-st..sub.a .paren open-st.C.sub.6 H.sub.4 --SO.paren close-st..sub.b .brket close-st.(II)in which the sulfur/oxygen ratio is from 1:0.1 to 1:1, the sum of a and b always being 1 and a and b each being greater than zero or with the proviso that a is zero if b is 1.

Abstract: A molding material which contains a sinterable polymer and a wax as a binder and advantageously an ethylene/vinyl acetate copolymer, an organic peroxide, an azoester and an alcohol can be injection molded to give a molding, dewaxed without loss of dimensional stability of the molding and then sintered.

Abstract: The present invention relates to a process for obtaining polyarylene sulfide from polyarylene sulfide-containing material. For this purpose, the polyarylene sulfide-containing material is treated with a solvent in which it dissolves, and is subsequently reprecipitated. The invention also relates to the purification of polyarylene sulfide-containing material by separating off extraneous substances, to polyphenylene sulfide particles having a specific surface area of at least 80 m.sup.2 /g and to their use as filter material.

Abstract: A sensor for oxidizing agents contains an oxidizable aromatic polymer. The sensor comprises a piezoelectric crystal coated with a porous or non-porous layer that contains the oxidizable aromatic polymer.

Abstract: The novel blend comprises:(A) from 1 to 99% by weight of at least one thermotropic-liquid-crystalline polyester and/or polyesteramide and(B) from 1 to 99% by weight of at least one sulfoxide group-containing polymer,in each case based on the total weight .SIGMA.?(A)+(B)!. Component (B) is a linear and/or branched polymer having a mean molecular weight M.sub.w in the range from 4,000 to 200,000 comprising recurring units of the formula ?--F--S).sub.c --(F--SO).sub.d --!, where F, independently of one another, are simple or para-, meta- or ortho-linked arylene systems having 6 to 18 carbon atoms, preferably phenylene, naphthylene or biphenylene, where the sum c+d is 1, with the proviso that d is always .gtoreq.0.70. Component (A) is a thermotropic liquid-crystalline polymer having a mean molecular weight M.sub.w in the range from 10,000 to 200,000 g/mol and a transition temperature of >250.degree. C., and/or an amorphous thermotropic liquid-crystalline polymer having a mean molecular weight M.sub.

Abstract: An abrasion-resistant fluoropolymer mixture comprising(A) from 75 to 99% by weight of a fluorocarbon polymer(B) from 1 to 25% by weight of an oxidized polyarylene sulfide and, based on the sum (A)+(B),(C) from 0 to 15% by weight of a filler,is used for the production of feed pipes for Bowden cables which are pressure-resistant and abrasion-resistant.