Battery structure for an electric vehicle

A battery structure comprising

• a battery tray disposed at a lower portion of a center of a vehicle body, and a cross member extending in a vehicle width direction, which is inserted into the battery tray,
• wherein
• (1) the battery tray includes a first bottom portion, a peripheral wall erected on an outer periphery of the first bottom portion, a first inner wall connected to the first bottom portion, a second inner wall connected to the first bottom portion, and a second bottom portion connected to both the first inner wall and the second inner wall and raised from the first bottom portion,
• (2) the first bottom portion, the peripheral wall, the first inner wall, the second inner wall, and the second bottom portion are configured with an integrally molded fiber-reinforced plastic,
• (3) a recessed portion extending in the vehicle width direction is formed by the first inner wall, the second inner wall, and the second bottom portion, and the cross member is inserted into at least one location of the recessed portion, and
• (4) wherein discontinuous fibers are continuously dispersed in a boundary area between the first bottom portion and the first inner wall, a boundary area between the first bottom portion and the second inner wall, and a boundary area between the first bottom portion and the peripheral wall.