Samsung SDI is testing new silicon-carbon batteries with capacities of 12,000mAh, 18,000mAh and 20,000mAh, according to leaked internal reports. However, the technology still needs improvement, as test units of the 12,000mAh and 18,000mAh batteries failed after about 960 charge cycles, short of the company’s 1,500-cycle target.
The 12,000mAh version uses a dual-cell design, while the 18,000mAh model combines three cells for higher capacity. Samsung SDI is now working on improving cell stacking, thermal layers and battery management software.
If successful, these silicon-carbon batteries could bring much larger capacities to future smartphones – possibly benefiting devices like the Samsung Galaxy S27 Ultra and upcoming foldable phones.
Source: GSMArena
