The United States Patent and Trademark Office published a patent application from Apple on Thursday that reveals potential next-generation battery designs. As the mobile industry turns toward thinner devices, Apple is looking to redesign batteries to enable these thin designs. According to PatentlyApple, the Cupertino-based company’s invention relates to a battery cell, which includes a set of electrode sheets of different dimensions that can be arranged in a variety of designs. The configuration can be based on a non-rectangular battery design such as an L-shaped, a triangular or a pyramidal design. Existing battery packs typically contain rectangular cells, and by utilizing cells with alternative shapes, Apple will seemingly be able to pack more cells into a smaller battery pack.