Abstract: Disclosed is a method for leaching lithium via an electrochemical apparatus including a multi-functional current collector, an electrode, an electrolyte, and a lithium-bearing material, wherein the lithium-bearing material is dispersed or suspended in the electrolyte or the lithium-bearing material is coated onto the current collector. The method involves applying voltage to the current collector to leach lithium from the lithium-bearing material. The method can involve adding promoter additive into the electrolyte to boost lithium extraction within the electrochemical apparatus.

Abstract: Implementations for determining deployment need for a point of interest (POI) are disclosed. In one implementation, the deployment need for a POI is determined by: receiving geographical locations of one or more users, determining, based on the geographical locations, one or more target users covered by an area to be inspected, determining one or more POI deployment need indexes of the one or more target users, a POI deployment need index of a target user being determined based on a number of POIs that have the preset function of the POI and were deployed within a set distance from the target user, and providing a total deployment need index for the area to be inspected, the total deployment need index being determined based on the one or more POI deployment need indexes.

Abstract: Implementations for determining deployment need for a point of interest (POI) are disclosed. In one implementation, the deployment need for a POI is determined by: receiving geographical locations of one or more users, determining, based on the geographical locations, one or more target users covered by an area to be inspected, determining one or more POI deployment need indexes of the one or more target users, a POI deployment need index of a target user being determined based on a number of POIs that have the preset function of the POI and were deployed within a set distance from the target user, and providing a total deployment need index for the area to be inspected, the total deployment need index being determined based on the one or more POI deployment need indexes.

Abstract: Implementations for determining deployment need for a point of interest (POI) are disclosed. In one implementation, the deployment need for a POI is determined by: receiving geographical locations of one or more users, determining, based on the geographical locations, one or more target users covered by an area to be inspected, determining one or more POI deployment need indexes of the one or more target users, a POI deployment need index of a target user being determined based on a number of POIs that have the preset function of the POI and were deployed within a set distance from the target user, and providing a total deployment need index for the area to be inspected, the total deployment need index being determined based on the one or more POI deployment need indexes.