Abstract: A silicon-carbon negative electrode material includes a carbon skeleton having a pore structure and a silicon-based material arranged in the pore structure, where in a region formed by extending from a surface of the silicon-carbon negative electrode material inward by 10 nm away from the surface, a content of high-valence silicon is less than 25% relative to a total amount of low-valence silicon and the high-valence silicon, where the low-valence silicon is silicon with a valence of 0 to 2, and the high-valence silicon is silicon with a valence of 3 to 4.

Abstract: A negative electrode plate, a secondary battery, and a power consuming apparatus. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer formed on at least one surface of the negative electrode current collector. The negative electrode film layer has a first surface away from the negative electrode current collector and a second surface opposite to the first surface. A thickness of the negative electrode film layer is denoted as H. A region within the thickness range from the first surface to 0.3 H of the negative electrode film layer is denoted as a first region of the negative electrode film layer. A region within the thickness range from the second surface to 0.3 H of the negative electrode film layer is denoted as a second region of the negative electrode film layer. The first region includes a spherical or/and spheroidal first silicon-based material.

Abstract: A negative electrode plate, a secondary battery, and an electric apparatus. The negative electrode plate includes a negative electrode current collector, a first active layer and a second active layer disposed on at least one surface of the negative electrode current collector, where the first active layer is between the negative electrode current collector and the second active layer, the first active layer includes a first silicon-based material, the second active layer includes a second silicon-based material, a sphericity of the first silicon-based material is greater than a sphericity of the second silicon-based material, and the sphericity of the first silicon-based material is greater than or equal to 0.6.

Abstract: A secondary battery and an electric apparatus. The secondary battery includes a negative electrode plate, where the negative electrode plate includes a negative electrode current collector and a first active layer disposed on at least one surface of the negative electrode current collector, the first active layer includes first graphite and a first silicon-carbon composite, a flatness of the first graphite is greater than or equal to 2, and the first silicon-carbon composite includes a porous carbon substrate and a silicon-based material in pores of the porous carbon substrate.

Abstract: A silicon-based negative electrode active material and a method of preparing the same. The silicon-based negative electrode active material includes silicate containing alkaline earth metal elements, and the silicon-based negative electrode active material contains both K element and P element. The method includes providing raw materials containing Si element, O element, K element, P element, and alkaline earth metal element, using a vapor deposition method to heat the raw materials to form vapor and then cool the vapor to form a deposit, and pulverizing the deposit to obtain a pulverized product.

Abstract: This application discloses a method performed by a computer device. The method includes: obtaining service resource data in a virtual scene containing an area light; generating a target transformation matrix based on the inverse matrix transformation data, projectively transforming a vertex corresponding to vertex position data onto a spherical surface based on a target transformation matrix, shading point data and vertex position data, and generating a first lighting vector based on the vertex projectively transformed onto the spherical surface; determining relative position information between a shading point corresponding to the shading point data and the area light based on plane equation data and the shading point data, and a second lighting vector based on the relative position information and the first lighting vector; and generating target rendering data for rendering the virtual scene based on the second lighting vector and the inverse matrix transformation data.

Abstract: A silicon-based negative electrode active material comprises Si and MSiO3, where M comprises one or more alkaline earth metal elements. An XRD diffraction pattern of the silicon-based negative electrode active material has a first diffraction peak at a diffraction angle 2? between 26° and 26.8° with a half peak width of ?A, and a second diffraction peak at a diffraction angle 2? between 31° and 32° with a half peak width of ?B. The silicon-based negative electrode active material satisfies 1.5??A/?B? 5.0.

Abstract: A shadow rendering method is performed by a computer device, and the method including: determining a shadow space distance of a pixel in a world space under a light source of a virtual scene relative to a shadow camera located at a position of the light source in a shadow camera space; performing linear transformation on the shadow space distance of the pixel under the light source based on a linear transformation rendering parameter of the light source, to obtain a shadow attenuation factor of the pixel; and rendering a shadow of the pixel based on the shadow attenuation factor of the pixel, to obtain a shadow rendering result of the virtual scene at the observation view (206).

Abstract: This application discloses a method performed by a computer device. The method includes: obtaining service resource data in a virtual scene containing an area light; generating a target transformation matrix based on the inverse matrix transformation data, projectively transforming a vertex corresponding to vertex position data onto a spherical surface based on a target transformation matrix, shading point data and vertex position data, and generating a first lighting vector based on the vertex projectively transformed onto the spherical surface; determining relative position information between a shading point corresponding to the shading point data and the area light based on plane equation data and the shading point data, and a second lighting vector based on the relative position information and the first lighting vector; and generating target rendering data for rendering the virtual scene based on the second lighting vector and the inverse matrix transformation data.