In the last couple of years, Chinese phone brands have made some pretty significant advancements in terms of battery density. Silicon-carbon technology has allowed them to offer much higher capacity cells in devices of the same size. That said, Samsung could be the next to jump on the silicon-carbon battery bandwagon with the Galaxy S26 series.
The Galaxy S25 lineup has followed a conservative line in terms of hardware improvements. The battery capacity is a testament to this, as Samsung kept the numbers identical compared to the previous generation Galaxy S24. This could be a result of the limitations of the Li-Ion technology that has been around for so long in the industry. That said, some sources have teased the possibility of high-density batteries in the 2026 Galaxy S flagships.
Samsung could use high-density silicon-carbon batteries in the Galaxy S26 lineup
A report from the Korean outlet FNNews claims that Samsung is considering using silicon-carbon tech in the batteries of the Galaxy S26 series. This could allow them to offer much higher cell capacities without increasing the physical size of the smartphones. For reference, recent OnePlus flagship devices have integrated 6,000 mAh batteries in cells that, with older technologies, would only allow around 5,000 mAh.
This is not the first time that the possibility of Galaxy S26 phones with high-density batteries has come up. Reliable tipster Ice Universe said something similar last month. That said, it seems that the decision has not yet been made in Samsung’s offices. Silicon-carbon tech has great advantages, but also some problems. Being a relatively new technology, it is more expensive to produce. These batteries also have a shorter lifespan compared to Li-Ion ones (they degrade faster).
No decision has been made yet
As for the advantages, silicon-carbon cells allow for greater capacity in less physical space. So, although they degrade faster, their high capacity mitigates the impact. They are also more environmentally friendly to produce. “If silicon anode material is used, the capacity increases, but there is a lifespan issue, so improvement is necessary. It has not been confirmed, but we are studying various improvement measures,” a Samsung representative told FNNews.
Samsung could not be the only big company to integrate this type of battery in future phones. Apple is reportedly developing similar technology for the 2026 iPhone 18 series.
