Abstract: The present invention relates to a method and an apparatus for diagnosing low voltage of a secondary battery cell. The method for diagnosing low voltage of a secondary battery cell according to an embodiment of the present invention includes pre-aging a battery cell, charging the battery cell according to a preset charging condition, measuring a parameter for determining low voltage failure of the battery cell, comparing the measured parameter with a reference parameter, and performing formation when the battery cell is determined to be normal.

Abstract: A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.

Abstract: Provided is an electronic device that includes a housing at least partially including a metal portion, a glass plate mounted on one surface of the housing, and a buffer disposed at least on the metal portion on one face of the housing and disposed adjacent to an edge of the glass plate.

Abstract: Provided is an electronic device that includes a housing at least partially including a metal portion, a glass plate mounted on one surface of the housing, and a buffer disposed at least on the metal portion on one face of the housing and disposed adjacent to an edge of the glass plate.

Abstract: Provided is an electronic device that includes a housing at least partially including a metal portion, a glass plate mounted on one surface of the housing, and a buffer disposed at least on the metal portion on one face of the housing and disposed adjacent to an edge of the glass plate.

Abstract: Provided is an electronic device that includes a housing at least partially including a metal portion, a glass plate mounted on one surface of the housing, and a buffer disposed at least on the metal portion on one face of the housing and disposed adjacent to an edge of the glass plate.

Abstract: Provided is an electronic device that includes a housing at least partially including a metal portion, a glass plate mounted on one surface of the housing, and a buffer disposed at least on the metal portion on one face of the housing and disposed adjacent to an edge of the glass plate.