Abstract: A button battery is provided in the application, and includes a positive electrode case, a negative electrode case and a sealing sleeve. The positive electrode case includes a support portion and a corner portion connected to an outer side of the support portion. The corner portion includes a first turning segment having a first curvature radius and a second turning segment having a second curvature radius. The second turning segment is connected between the support portion and the first turning segment. The negative electrode case includes a covering portion and a bending snap-engage portion having a third curvature radius. The covering portion and the support portion are disposed oppositely. The sealing sleeve is sandwiched between the corner portion and the bending snap-engage portion, so as to enable sealing between the positive electrode case and the negative electrode case.

Abstract: Provided are a lithium primary button cell, a preparation method thereof, and an electronic device. The lithium primary button cell includes a cell housing (10) and a cell core assembly located within the cell housing (10). The cell core assembly includes a negative electrode (3), a negative electrode modification film (4), separators (5, 6), and a positive electrode (7) that are stacked sequentially. The surface of one side of the negative electrode (3) facing the negative electrode modification film (4) is formed with a concave groove (9) into which the negative electrode modification film (4) is tightly embedded. In the present application, the structure and materials of the lithium primary button cell are optimized so that the lithium primary button cell can have excellent discharging performance and good stability and reliability.

Abstract: A positive electrode sheet material, a positive electrode sheet, and a battery are provided. The positive electrode sheet material includes a positive active material, a conductive agent, and a binder. The positive active material includes manganese dioxide having a specific surface area in a range of 10 g/cm2 to 26 g/cm2. The conductive agent includes a first conductive agent having a specific surface area in a range of 10 g/cm2 to 60 g/cm2.

Abstract: Clothing apparatus may include a jacket and gloves. The clothing apparatus includes illuminating elements, a power source, a controller, and hand operated switches. The gloves are in signaling communication with the controller, such as may permit the operator to cause signaling functions to occur by use of the hands without releasing, for example, the handle bars of a bicycle., and without having to fumble with external manual switches. The power and control units may be removable and rechargeable. The jacket may be water-resistant or water-proof, and may include a hood. The apparatus may include a photo-sensitive element and running lights such as may operate automatically as dusk falls.