Apple is continuing to investigate ways that it can fill the entire volume of an iPhone, and is researching batteries that can fill the gaps in flexible devices such as a future iPhone Fold.Future folding iPhones may use flexible batteries (Photo: William Gallagher)Apple devices are so dependent on batteries that the company is always investigating every possible option that can make them more powerful, or in some way more useful. A newly-revealed patent application shows that the company is continuing to work on how to make a battery that can work in a folding device,Read more
