Cover having metallic grid structure and method for manufacturing the cover

A battery cover having a metallic grid structure, the battery cover comprising:

• a pattern portion formed of a metallic material, in which a plurality of metallic patterns are independently disposed spaced apart from each other, at least a portion of the plurality of metallic patterns forming a first portion of an exterior surface of the battery cover;
• a connection film layer for applying an adhesive force between the pattern portion and an injection portion, a portion of the connection film layer disposed on a side surface of which the metallic patterns are disposed, the connection film layer disposed between the pattern portion and the injection portion, and at least a portion of the connection film layer comprising a second portion of the exterior surface of the battery cover, wherein the first portion and the second portion evenly form the exterior surface of the battery cover;
• and
• a plurality of injection portions formed of a non-metallic material, the plurality of injection portions being filled between the plurality of metallic patterns, wherein the plurality of injection portions and the plurality of metallic patterns form a flat layer such that the plurality of metallic patterns only partially cover the battery cover, at least another portion of the connection film layer disposed on the exterior surface of the battery cover and between adjacent patterns in the plurality of metallic patterns, and
• wherein the plurality of injection portions are disposed between the plurality of metallic patterns.