Leaked documents revealed that Samsung is currently testing massive silicon-carbon batteries for smartphones, in a move that may pave the way for a significant increase in battery capacities in its future devices.
According to the leak, the company is working on several experimental models, including a huge battery with a capacity of 20,000 mAh. However, this model encountered a technical problem after only about 960 charging cycles, which indicates that its development is still in the early testing stage.
In contrast, Samsung is testing another 18,000 mAh battery consisting of three stacked cells. This battery includes a cell with a capacity of 6699 mAh, another with a capacity of 6000 mAh, and a third with a capacity of 5527 mAh, with a total thickness of 12.8 mm, which makes it more suitable for durable phones or those intended for harsh uses.
The company is also working on a relatively smaller 12,000 mAh model consisting of only two cells, with a thickness of about 9.3 mm, which may make it a more suitable option for traditional smartphones.
Samsung expects this battery to withstand about 1,500 charging cycles before its capacity drops to 80% of its original capacity, while the 12,000 mAh capacity may provide between 20 and 25 hours of actual use of the phone. However, performance and lifetime tests are still ongoing, meaning these numbers remain estimates for now.
Although these batteries appear thick compared to what most current Galaxy phones use, the leaked documents indicate that Samsung is already working on developing silicon-carbon battery technologies, which may allow it in the future to offer phones with larger battery capacities that compete with what Chinese companies offer.
