Abstract: Embodiments of this application provide a battery, an apparatus using a battery, and a manufacturing method and a manufacturing device of battery. The battery includes a battery cell and a thermal management component. The battery cell has a side wall and a bottom wall that are connected to each other. The thermal management component is configured to accommodate fluid to regulate temperature of the battery cell, where an accommodating portion is provided on the thermal management component, and configured to accommodate the battery cell, and the accommodating portion is attached to the bottom wall and side wall of the battery cell, to enable heat transfer between the battery cell and the thermal management component. The battery cell in the battery provided in the embodiments of this application can dissipate heat efficiently.

Abstract: Lithium replenishing spaces are disposed on a current collection structure, such that the lithium replenishing spaces communicate with an active layer on one side; and the battery is replenished with lithium by using lithium replenishing agents in the lithium replenishing spaces to offset an irreversible lithium consumption in a cycle process, so as to increase the total capacity and the energy density of the battery. According to the present application, due to average weights MA of corresponding active materials in different distribution regions on the active layer, a sum V0 of internal volumes of lithium replenishing spaces corresponding to each of the distribution regions is controlled in a positively correlated manner based on a change in the average weights of the active materials in the different distribution regions.

Abstract: A method for downloading a data resource includes: at the beginning of downloading a target data resource, determining, by a first device, a plurality of candidate devices storing data slices of the target data resource and slice serial numbers of data slices of the target data resource stored by each of the plurality of candidate devices; acquiring, by the first device, a total number of slices for data slices of a same type of data resources as the target data resource that have been downloaded from each of the plurality of candidate devices; and downloading, by the first device, the data slices of the target data resource according to the slice serial numbers, the total number of slices downloaded from each of the plurality of candidate devices, and a preset time-length for overtime switch.