BATTERY ELECTRODE, PREPARATION METHOD THEREOF AND BATTERY

    公开(公告)号:EP3595048A1

    公开(公告)日:2020-01-15

    申请号:EP18776082.2

    申请日:2018-03-21

    IPC分类号: H01M4/04 H01M4/62

    摘要: Embodiments of the present invention provide a battery electrode, including a current collector and an electrode material layer disposed on the current collector. The electrode material layer includes an electrode active material and graphene of a sheet-like structure, a surface of the graphene is modified with magnetic response nanodots, and in the graphene, more than 50% of the graphene is orientationally arranged at an angle of 45° to 90° with respect to a surface, of the current collector, on which the electrode material layer is disposed, to form a heat conduction path having a specific orientation. A fast heat conduction path having a specific orientation exists inside an electrochemical cell material of the battery electrode, so that heat inside the electrochemical cell can be effectively transmitted outwards to the current collector, and transmitted from the current collector to an ambient environment. This resolves a prior-art problem that high-temperature performance of a battery is poor because heat generated inside a single electrochemical cell cannot be conducted from the inside of the electrochemical cell to an environment in a timely manner. The embodiments of the present invention further provide a method for producing the battery electrode and a battery that includes the battery electrode.

    USER INTERFACE DISPLAY METHOD AND TERMINAL DEVICE

    公开(公告)号:EP3678021A1

    公开(公告)日:2020-07-08

    申请号:EP19822186.3

    申请日:2019-05-17

    IPC分类号: G06F9/451

    摘要: Embodiments of this application provide a solution for compatibility between TUI display and Android display. Based on a native control provided by a rich operating system, a customized secure control is further added, thereby simplifying TUI development. Further, the rich operating system performs drawing processing on a native control in a user interface, synchronizes a non-secure surface obtained after processing to a frame buffer of a trusted operating system on a TEE side, and transfers identified information about a secure control in the user interface to the trusted operating system on the TEE side. The trusted operating system processes drawing processing on the secure control based on the information about the secure control and a customization method corresponding to the secure control, composites a secure surface and the non-secure surface that are obtained after processing, and then displays a composited surface by using a display.