Abstract: A stator for an electric machine of a motor vehicle, having an annular yoke, with an inner side directed inwards in the radial direction of the yoke, wherein a plurality of pole teeth are connected by form fit to the yoke on the inner side of the yoke, a stator winding which is formed as a mat and which is arranged between the pole teeth, a first cooling channel through which a cooling medium may flow and which extends in the longitudinal direction of the stator, wherein the first cooling channel is arranged in a recess, and a second cooling channel through which a cooling medium may flow, wherein the second cooling channel is arranged between two adjacent pole teeth between an inner side of the stator winding directed inwards in the radial direction of the stator and a pole shoe of the pole tooth.

Abstract: The invention relates to a squirrel-cage rotor of an asynchronous machine (1), comprising conductors (9) in grooves (12) of a magnetic field-conducting rotor, and electrically conducting rotor end rings (6) which are located in the region of the end faces of the magnetic field-conducting rotor, electrically connect the conductors (9) and have at least two materials that conduct electricity differently.

Abstract: Various embodiments include a method for producing a galvanic lithium-ion cell comprising: separating a first electrode material from a second electrode material using a separator; and applying the first electrode material to a first side of the separator by coating.

Abstract: The invention relates to an electrical machine (1) comprising a rotor (4) which is rotatably mounted around a rotation axis (5) extending in the axial direction (3) in bearing devices (16, 17), a stator (7) having two axial ends, an air gap between rotor and stator, an interior chamber (10) encompassing the stator (7) and rotor (4), a sleeve (11) encompassing a first part (111) which encloses the interior chamber (10), a frame (12) having a first (123) and a second (121) longitudinal support (123), a first (122) and a second (124) cross-support, and a dividing device (2) on the frame (12). The stator (7) comprises a fastening device (15) for connection to the frame (12) and the dividing device (2) can make the interior chamber accessible from the outside in a plane parallel to the frame (12). The invention further relates to a collection, to a frame (12), to a sleeve (11), or to a service or production method of such an electrical machine (1).

Abstract: The invention relates to a squirrel-cage rotor of an asynchronous machine (1), comprising conductors (9) in grooves (12) of a magnetic field-conducting rotor, and electrically conducting rotor end rings (6) which are located in the region of the end faces of the magnetic field-conducting rotor, electrically connect the conductors (9) and have at least two materials that conduct electricity differently,

Abstract: A stator for a rotating electric machine includes a laminate stack having a plurality of slots open towards an air gap between the stator and a rotor of the electric machine. A winding includes coils which have turns that pass through the slots of the laminate stack. The turns of the coils are electrically insulated the within the slots from each other and from the laminate stack by a ceramic material.

Abstract: A rotor of an asynchronous machine with a cage rotor includes a laminated core formed from a plurality of partial laminated cores. The laminated core has substantially axially extending conductors arranged in slots in the laminated core. The conductors include at least two materials of different electrical conductivities, such that a material with a higher electrical conductivity surrounds a material with a lower electrical conductivity by at least 65% in a circumferential direction.

Abstract: A rotor of an asynchronous machine with a cage rotor includes a laminated core formed from a plurality of partial laminated cores. The laminated core has substantially axially extending conductors arranged in slots in the laminated core. The conductors include at least two materials of different electrical conductivities, such that a material with a higher electrical conductivity surrounds a material with a lower electrical conductivity by at least 65% in a circumferential direction.

Abstract: A stator for a rotating electric machine includes a laminate stack having a plurality of slots open towards an air gap between the stator and a rotor of the electric machine. A winding includes coils which have turns that pass through the slots of the laminate stack. The turns of the coils are electrically insulated the within the slots from each other and from the laminate stack by a ceramic material.

Abstract: The invention relates to an electrical machine (1) comprising a rotor (4) which is rotatably mounted around a rotation axis (5) extending in the axial direction (3) in bearing devices (16, 17), a stator (7) having two axial ends, an air gap between rotor and stator, an interior chamber (10) encompassing the stator (7) and rotor (4), a sleeve (11) encompassing a first part (111) which encloses the interior chamber (10), a frame (12) having a first (123) and a second (121) longitudinal support (123), a first (122) and a second (124) cross-support, and a dividing device (2) on the frame (12). The stator (7) comprises a fastening device (15) for connection to the frame (12) and the dividing device (2) can make the interior chamber accessible from the outside in a plane parallel to the frame (12). The invention further relates to a collection, to a frame (12), to a sleeve (11), or to a service or production method of such an electrical machine (1).

Abstract: A method for monitoring an area of the surface of the earth uses measurement probes arranged in a grid for determining the self-potential with respect to a base probe. The measurement probes are interrogated repeatedly. The earth resistance between measurement probes and the base probe is also measured repeatedly between measurements of self-potential. Potentials on the surface of an area of the earth can be determined precisely, independently of earth-resistance changes.