Abstract: The present disclosure relates to a plate-like fluid container for the temperature control of an accumulator device for electrical energy or of an electrical consumer, for example in a motor vehicle, having two layers contacting one another at least regionally, an inlet for pouring a fluid into the fluid container, an outlet for discharging the fluid from the fluid container, and a fluid channel system arranged between the layers that connects the inlet to the outlet and is configured to be flowed through by the fluid during the temperature control, wherein a spacing of at least two first channel sections of the fluid channel system extending parallel to one another is larger in a first region of the fluid channel system disposed upstream than a spacing of at least two second channel sections of the fluid channel system extending parallel to one another in a second region of the fluid channel system disposed downstream to improve the temperature control performance of plate-like fluid containers for temperatu

Abstract: The present disclosure relates to a separator plate for an electrochemical system, comprising first and second individual plates connected by means of a welded joint, each individual plate comprising at least one through-opening for passage of a fluid, a flow field, a distribution or collecting region which fluidically connects the through-opening to the flow field, and a transition region which is arranged between the flow field and the distribution or collecting region, wherein the welded joint is arranged in the flow field and/or in the transition region, wherein the welded joint extends longitudinally from a first end located in a first end region to a second end located in a second end region, wherein the welded joint forms an end crater between the first and second ends and the end crater is spaced from the first and second ends.

Abstract: The present disclosure relates to a bipolar plate for an electrochemical system, having a first separator plate and a second separator plate that are arranged one on top of the other, wherein the first separator plate has, on a side facing away from the second separator plate, a first electrochemically active surface for conducting a first fluid; the second separator plate has, on a side facing away from the first separator plate, a second electrochemically active surface for conducting a second fluid; wherein the first electrochemically active surface and the second electrochemically active surface overlap each other and form an active region of the bipolar plate in an overlapping region, wherein the separator plates are joined together in the active region by a weld pattern with inhomogeneously distributed welds.

Abstract: The present disclosure relates to a separator plate for an electrochemical system, comprising a first plate and a second plate connected at a contact zone. The first plate comprises two first channels for conducting media, which run next to one another and are separated at least in sections by a web formed between the first channels. The second plate comprises a second channel for conducting media. The web formed between the first channels is lower in the crossing region of the second channel such that the first channels running on either side of the web are fluidically connected by a lower portion of the web. In or near the lower portion, the first plate is connected to the base of the second channel by a welded joint. The welded joint forms an end crater spaced away from a first end and a second end of the welded joint.

Abstract: A separator plate for an electrochemical system comprising a first individual plate which comprises two first channels for conducting media which run next to one another and which are separated from one another at least in sections by a web formed between the first channels. The web comprising a lowered portion and a rear side of the base of the lowered portion is connected to a rear side of the base of the second channel in the contact zone of the individual plates via a welded connection. The welded connection comprises a first end region and a first curved portion, wherein the first curved portion runs, and is curved, in such a way that a virtual straight line running perpendicularly through the first end region intersects the welded connection at least two times.

Abstract: A plate-like fluid container for conducting a fluid, usable for regulating the temperature of an electrochemical system such as batteries, battery stacks and the like, and, in particular traction batteries, having a metallic baseplate and a metallic channel plate adjacent to the baseplate. The channel plate includes at least one channel for conducting the fluid, and the baseplate for thermal contact with the electrochemical system that includes at least one indentation directed toward the channel plate where within the baseplate is welded to the channel plate, with the weld seam on the side of the baseplate facing away from the channel plate.

Abstract: The present disclosure relates to a plate-like fluid container for the temperature control of an accumulator device for electrical energy or of an electrical consumer, for example in a motor vehicle, having two layers contacting one another at least regionally, an inlet for pouring a fluid into the fluid container, an outlet for discharging the fluid from the fluid container, and a fluid channel system arranged between the layers that connects the inlet to the outlet and is configured to be flowed through by the fluid during the temperature control, wherein a spacing of at least two first channel sections of the fluid channel system extending parallel to one another is larger in a first region of the fluid channel system disposed upstream than a spacing of at least two second channel sections of the fluid channel system extending parallel to one another in a second region of the fluid channel system disposed downstream to improve the temperature control performance of plate-like fluid containers for temperatu

Abstract: A plate-like fluid container for conducting a fluid, usable for regulating the temperature of an electrochemical system such as batteries, battery stacks and the like, and, in particular traction batteries, having a metallic baseplate and a metallic channel plate adjacent to the baseplate. The channel plate includes at least one channel for conducting the fluid, and the baseplate for thermal contact with the electrochemical system that includes at least one indentation directed toward the channel plate where within the baseplate is welded to the channel plate, with the weld seam on the side of the baseplate facing away from the channel plate.

Abstract: The present invention concerns a mixing shaft comprising a tool holder and a mixing blade, wherein the tool holder has a recess in which a portion of the mixing blade is fixed. To provide a simple mixing shaft, there is proposed a clamping portion fitted into the recess for fixing the mixing blade portion in the recess, wherein the clamping portion, the recess and the mixing blade portion are of such a configuration that a force-locking connection of the mixing blade in the recess is implemented by means of the clamping portion.

Abstract: The present invention concerns a mixing shaft comprising a tool holder and a mixing blade, wherein the tool holder has a recess in which a portion of the mixing blade is fixed. To provide a simple mixing shaft, there is proposed a clamping portion fitted into the recess for fixing the mixing blade portion in the recess, wherein the clamping portion, the recess and the mixing blade portion are of such a configuration that a force-locking connection of the mixing blade in the recess is implemented by means of the clamping portion.