Patent ID: 9034515
Filing Date: 2015-05-19
Classification: H01M,Y02E,Y02P

Abstract:
1. A battery comprising: a case having a bottom surface and a front surface, wherein the front surface is approximately perpendicular to the bottom surface, the bottom surface is one of surfaces of the case in a thickness direction, the front surface is one of surfaces of the case in a length direction; a terminal portion to output power from a battery cell, the terminal portion located at a corner between the bottom surface and the front surface, and the terminal portion including a negative terminal and a positive terminal arranged in a width direction; a step provided on the front surface, the step extending in the width direction; locking pieces projecting from both sides of the bottom surface in the width direction; and side grooves provided at both sides of the battery in the width direction and extending in the length direction, where the locking pieces hang over the side grooves, wherein a width of the step in the width direction is smaller than a distance between side surfaces of the side grooves in the width direction.