LG Chem (a battery manufacturer) is not square - no really, the company just announced they are breaking away from rectangular batteries. Those don't fit well into certain phone designs, like LG's own G2, which has a curved back. LG Chem has started production of curved batteries this month, which will power the next line of LG phones, but can also be used for smartwatches and smart...
Source: http://www.gsmarena.com/lg_announces_curved_battery_for_phones_and_wearable_devices-news-6929.php
