Battery apparatus

A battery apparatus, comprising a casing and a first insert disposed on the casing, wherein the first insert has an electromagnetic shielding layer;

• the battery apparatus further comprising a second insert disposed on the casing, wherein the first insert and the second insert are arranged at interval;
• wherein the electromagnetic shielding layer is electrically connected to the casing through the second insert,
• the first insert has a body having a cylindrical shape, and the electromagnetic shielding layer is attached on an outer surface of the body,
• the first insert is a high-voltage insert, and the second insert is a high-voltage interlocking insert,
• the second insert has a conductive terminal,
• the electromagnetic shielding layer is electrically connected to the conductive terminal through a first conductive member,
• the second insert comprises a protective cover, the protective cover is a cavity with an opening and is fixed onto the casing, the conductive terminal is located in the protective cover, and the protective cover has a notch arranged on a side of the protective cover perpendicular to a surface of the casing, so that the first conductive member passes through the notch and enter into the protective cover, the first conductive member is prevented from entering into the protective cover in a direction perpendicular to the surface of the casing, and the first conductive member is prevented from being bent,
• the first conductive member is electrically connected to the conductive terminal through the notch.