Production of electrodes
    4.
    发明专利

    公开(公告)号:GB2304977B

    公开(公告)日:1998-09-16

    申请号:GB9618220

    申请日:1996-08-30

    Abstract: Electrodes suitable for electrochemical cells are produced by a) applying a mixture comprising alpha ) a solid III which can reversibly take up or release lithium ions in an electrochemical reaction and beta ) a binder IV, or a compound which can be converted into a binder IV, to an electrically conductive support V by means of a coating apparatus II with essentially linear relative motion (R) of the support V relative to the coating apparatus II in such a way that an uncoated zone remains on the support V at each of the two margins of the coating apparatus II running parallel to the relative motion (R) and b) cutting the support V at an angle of from 5 to 85 degrees to the normal to the direction of relative motion (R) to give essentially parrallel strips.

    9.
    发明专利
    未知

    公开(公告)号:AT236446T

    公开(公告)日:2003-04-15

    申请号:AT99941459

    申请日:1999-07-24

    Abstract: Digital recording procedures wherein the recording support is not exposed to an obliterating magnetic field before recording are known in recent times. Such recording supports must therefore have good rewrite capability. It has been found that said requirement is fulfilled by two-layered recording supports, wherein the top layer contains a metal or metal alloy powder and has a density of less than 0.3 mu m and wherein the bottom layer contains a magnetic pigment. The coercitive force of the bottom layer has at the most two thirds the coercitive force of the top layer and the remanent magnetization of the bottom layer is at least 32 kA/m.

Patent Agency Ranking