Abstract: The present disclosure provides the use of prelithiated hard carbon in the preparation of lean lithium metal anode electrode, the incorporation of the lean lithium metal anode electrode into full cells, and the evaluation of the electrochemical performances in the full cell under practical conditions. A full cell using the prelithiated hard carbon with lean lithium metal anode electrode and a high-capacity cathode can exhibit high energy density, high Coulombic efficiency, and long cycling life.

Abstract: Provided are a structured light module and an autonomous mobile device. A structured light module comprises a camera module and line laser emitters distributed on two sides of the camera module; the line laser emitters emit line laser outwards; and the camera module collects an environmental image detected by the line laser. By virtue of the advantage of high detection accuracy of the line laser, front environmental information may be detected more accurately. In addition, the line laser emitters are located on two sides of the camera module. This mode occupies a small size, may save more space, and is beneficial to expand an application scenario of a line laser sensor.