Since last year, smartphone brands from China have been offering their flagship phones with silicon carbide (SiC) batteries instead of lithium (Li-ion) batteries. That’s because SiC has around 10% higher energy density compared to Li-ion.
To put it into perspective, a SiC battery can offer a 5,500mAh capacity in the same volume as a Li-ion battery with a 5,000mAh capacity. With the new tech, Chinese brands have been offering their flagship phones with 5,500mAh or 6,000mAh batteries without increasing the thickness or volume of the devices, and people love that.
Samsung, on the other hand, is still stuck with the traditional Li-ion technology. As a result, its flagship smartphone, the Galaxy S24 Ultra, has a 5,000mAh battery, which is smaller than that of its competitors. Well, the South Korean tech giant is working on increasing the battery capacity. However, instead of going the silicone carbide route, Samsung is going with the stacking method.
Samsung SDI developing stacked batteries for smartphones
According to a new report from The Elec, Samsung SDI is developing batteries with stacked technology, which offers around 10% higher energy density compared to the traditional winding method of packing batteries.
With the new technology, Samsung will be able to offer Galaxy S26 Ultra with a 5,500mAh battery and it will take up the same space as a 5,000mAh battery that’s in the Galaxy S24 Ultra. We don’t expect the brand to use this technology for more affordable smartphones as it is more expensive to manufacture this type of battery.
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It is worth mentioning that rumors about Samsung using batteries with the stacked technology have popped up in the past as well but none of them materialized. So, take the new rumor with a pinch of salt. It is also worth pointing out that Apple has been using stacked batteries for iPhones since the iPhone 15 series.
