Samsung SDI’s experience with electric vehicle (EV) batteries, according to reports, may soon benefit the mobile sector. Samsung SDI began developing 5th generation batteries for electric vehicles over a year ago, employing a stacking process rather than the traditional jelly roll method. This enables the battery components to be firmly packed together, resulting in a higher capacity for the same space.
The business is now planning to apply the same technology to smartphone batteries.
The stacking process produces batteries with at least 10% larger capacity than the standard roll design. To put things in perspective, a smartphone with a 5,000 mAh flat jelly roll battery may benefit from a stacked 5,500mAh battery in the same volume and footprint. Smartphones may also be made thinner and lighter while maintaining the same battery capacity.
Flat roll batteries, on the other hand, cannot be packed tightly because the natural swelling that happens when the battery is charged and drained might bend the electrodes, potentially harming them. The stacked design, on the other hand, addresses this issue by filling the dead space within a battery.
At its Cheonan factory in Seoul, South Korea, the corporation is reportedly planning to manufacture stacked-type smartphone batteries. Samsung is also estimated to spend at least 100 billion won ($85 million) to prepare its production lines for the assignment.
Meanwhile, Samsung SDI’s Tianjin facility in China is apparently preparing another pilot line of batteries. There’s no word on when we’ll see this new stacked battery architecture inside Galaxy devices, but it should be available in time for the Galaxy S23 series. In the first quarter of 2023, the smartphone series is expected to be revealed.