Abstract: A composite material for a secondary lithium battery comprises: nano-silicon and carbon atoms. The carbon atoms are uniformly distributed in the nano-silicon at an atomic level; the carbon atoms and silicon atoms are combined to form an amorphous Si—C bond, and no SiC crystal peak exists in an X-ray diffraction (XRD) energy spectrum; in solid nuclear magnetic resonance (NMR) detection of the novel composite material, a 29Si NMR chart shows that, when the silicon peak is between ?70 ppm and ?130 ppm, there is a Si—C resonance peak between 20 ppm and ?20 ppm; the area ratio of the Si—C resonance peak to the silicon peak is (0.1, 5.0); the average particle size D50 of the novel composite material is 1 nm-50 ?m; the mass of the carbon atoms accounts for 0.5%-50% of the mass of the novel composite material.

Abstract: A steam valve for a cooking utensil and the cooking utensil are provided. The steam valve includes a valve base, a bonnet and a barrier member. The bonnet and the valve base form a mounting chamber. The valve base has a steam inlet, and at least one of the valve base and the bonnet has a steam outlet. The barrier member is mounted in the mounting chamber, the barrier member and a top wall of the bonnet define a first passage therebetween, steam flows from the steam inlet via the first passage to the steam outlet, and a bottom wall of the valve base corresponding to the barrier member is disposed obliquely such that liquid flows back to the steam inlet.

Abstract: A cooking appliance includes a base, a cover body pivotally mounted at the base, a pivot spring provided at a pivot connection member between the base and the cover body, and an attraction assembly including a first attraction member provided at the base and a second attraction member provided at the cover body. The first attraction member and the second attraction member are configured to attract each other to lock the cover body to the base.

Abstract: A cooking appliance includes a base, a cover body pivotally mounted at the base, a pivot spring provided at a pivot connection member between the base and the cover body, and an attraction assembly including a first attraction member provided at the base and a second attraction member provided at the cover body. The first attraction member and the second attraction member are configured to attract each other to lock the cover body to the base.

Abstract: A steam valve for a cooking utensil and the cooking utensil are provided. The steam valve includes a valve base, a bonnet and a barrier member. The bonnet and the valve base form a mounting chamber. The valve base has a steam inlet, and at least one of the valve base and the bonnet has a steam outlet. The barrier member is mounted in the mounting chamber, the barrier member and a top wall of the bonnet define a first passage therebetween, steam flows from the steam inlet via the first passage to the steam outlet, and a bottom wall of the valve base corresponding to the barrier member is disposed obliquely such that liquid flows back to the steam inlet.