Abstract: The present application relates to a cell charging and discharging tray, a cell ageing device and a cell ageing method, wherein the tray includes an insulating base component for accommodating cells and a conductive component for realizing sequential parallel connection of a type-A cell and type-B cells, and is adapted for simultaneously ageing one type-A cell and a plurality of type-B cells, where a potential of the type-A cell is higher than that of each type-B cell. The tray provided by the present application adopts a design that the base component is separated from the conductive component, so that the ageing of a high-potential cell will be completed after low-potential cells are aged, and the service life of the high-potential cell is not affected, so shipment may be performed after self-discharge for selecting bad products is completed, which is conducive to improving the manufacturing efficiency.

Abstract: A vapor chamber architecture for multiple cavity/heat source system designs. The vapor chamber architecture can be customized in dimensions to cool two or more spatially separated, and potentially heterogeneous, heat sources in a system floor plan. The vapor chamber architecture can additionally be customized to concurrently manage the cooling requirements for the two or more heat sources that have different power consumptions and sizes. The provided vapor chamber architecture can be manufactured using etching processes, additive manufacturing processes, or the like.

Abstract: A method for preparing bones of cerebral cranium, including: a) selecting polyetheretherketone (PEEK) as a raw material according to data obtained by computed tomography (CT) of a patient; b) heating the PEEK material in a heating device to reach a softening point of 260°±10°; c) hot pressing the heated PEEK material obtained in step b) in a forming die, cooling and shaping the PEEK material to yield a blank; d) curing the blank, and placing the blank in a thermostat for removal of internal stress and resilience; e) removing surface crystals and impurities of the blank resulting from the hot pressing; f) mechanically processing the blank according to the CT data of the patient to yield a product having desired size and shape; and g) washing, disinfecting, and packaging the product.

Abstract: A method for preparing bones of cerebral cranium, including: a) selecting polyetheretherketone (PEEK) as a raw material according to data obtained by computed tomography (CT) of a patient; b) heating the PEEK material in a heating device to reach a softening point of 260°±10°; c) hot pressing the heated PEEK material obtained in step b) in a forming die, cooling and shaping the PEEK material to yield a blank; d) curing the blank, and placing the blank in a thermostat for removal of internal stress and resilience; e) removing surface crystals and impurities of the blank resulting from the hot pressing; f) mechanically processing the blank according to the CT data of the patient to yield a product having desired size and shape; and g) washing, disinfecting, and packaging the product.