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Last updated: April 19th, 2022 at 20:30 UTC+02:00
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Smartphone batteries use a so-called “flat jelly roll” design. However, switching to a stacked design similar to the one used by electric vehicle batteries could lead to a 10% or higher increase in battery capacity.
To put things into perspective, a smartphone that has a traditional flat jelly roll battery with a 5,000mAh capacity could benefit from a stacked 5,500mAh battery within the same volume and footprint.
If the solution to increasing smartphone battery capacities is switching to an EV-style stacked battery design, why hasn't Samsung SDI done this already? Well, it's not as simple as turning a switch on or off.
Samsung is reportedly planning to manufacture stacked-type smartphone batteries at its Cheonan plant in Seoul. And according to industry sources (via The Elec), the company is expected to invest at least 100 billion won ($85 million) to equip its manufacturing lines for the task.
Another pilot line is reportedly being prepared at Samsung SDI's Tianjin plant in China. As yet, there's no timeframe as to when we might see this new stacked battery design inside our Galaxy smartphones, but hopefully, the technology will be ready in time for the Galaxy S23 series. The latter should be unveiled in the first quarter of 2023.
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Mihai is a blogger and column writer at SamMobile. His first Samsung phone was an A800 which took a lot of beating, and a part of him still misses the novelty of the clamshell design. In his free time, he enjoys watching shows, documentaries, and stand-up comedy; listening to music, taking walks, and occasionally playing old(er) video games.
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