The rumor mill currently has it that the iPhone 15 could use a “stacked battery” that could result in lower heat and better overall battery life.
According to prolific Android leaker “@RgcloudS” who posted a tweet about stacked battery development in Samsung devices, this feature could also be en route to Apple’s next-gen iPhone. While Samsung’s “on track” to introduce a stacked battery for smartphones, the leaker writes “Apple used it on the entire iP15 lineup,” referencing the iPhone 15.
If true, this could offer some nifty benefits to the handset, such as faster charging, higher capacities, and considerably extended battery life.
The leaker didn’t go into detail as to Apple’s own batteries but discussed Samsung’s prototype samples. Samsung has apparently been waiting for stacked battery equipment to arrive at a plant owned by subsidiary Samsung SDI.
A stacked battery refers to a specific method in how a battery’s cells are assembled and packaged. A battery is made up of positive electrodes and negative electrodes, produced in long strips. In a typical battery cell, these are rolled up in a “winding” process before being packaged.
A stacked battery cell instead uses the elements as well as separators, but folds them into zig-zagging layers instead of a roll., in what is referred to as lamination. The new process would allow for less wasted space as opposed to a wound cell, allowing for more material to be included, and therefore a higher capacity. The layered construction also means the battery works as a multi-pole battery rather than a single-pole wound battery. This allows there to be less resistance in the battery itself, so there is far less heat generated when it is charged or discharged. The heat itself would be generated more uniformly throughout the cell, as opposed to focusing across a single area. This process would mean that the battery itself won’t get worn out as quickly compared to wound battery cells, extending its life.
The stacked battery can also be charged and discharged at far higher rates. This equates to faster charging of devices, as well as the potential for those devices to draw more power from the battery if required. Though still a relatively new technology for smartphones, this technology is commonly used to produce batteries for electric vehicles, a device that needs to massively draw power and recharge as quickly as possible and benefits greatly from higher densities.
Stay tuned for additional details as they become available.
Via AppleInsider and @RGcloudS