According to the latest rumors, Apple’s iPhone 15 series phones may use stacked battery technology to improve energy density and extend service life. The news comes from Twitter user @RGcloudS, who also revealed that Samsung’s Galaxy S24+ and S24 Ultra will also use stacked battery technology.
Stacked battery cells use a manufacturing technique called lamination, in which battery elements and separators are folded into zigzag layers rather than rolled up. With less wasted space within the encapsulation unit, more active materials can be contained, thereby increasing the overall capacity. This enables stacked batteries to have a higher energy density than wound batteries. Heat can also be distributed more evenly within the cell rather than being concentrated in one area, extending the life of the battery.
Stacked batteries have been widely used in electric vehicles due to their ability to provide high power output and fast charging, as well as superior energy density, and are also used in medical equipment, aerospace and renewable energy storage.
In addition, the Twitter user also claimed to have found signs of Apple exploring 40W wired charging and 20W MagSafe wireless charging, but is not sure whether this is related to the iPhone 15 or iPhone 16 series. Currently, the iPhone 14 Pro Max has a maximum wired charging speed of 29W, while MagSafe can only reach 15W.
It needs to point out that @RGcloudS mainly focuses on the revelations of the Android system, and the accuracy of its Apple-related revelations is unclear, so we should be cautious about this revelation at present.
