Most smartphone technologies are advancing rapidly: chipsets, displays, cameras, and so on. Everything except the battery capacity, which increases at a snail’s pace. Honor thinks it has found a solution: the industry’s first silicon-carbon battery.
It promises a 12.8% higher energy density than current lithium batteries that use graphite for one of the electrodes (the anode). To put it more concretely, the Honor Magic5 Pro has a standard 5,100mAh battery. If it had used a silicon-carbon battery instead, it would have had a capacity of 5,450 mAh.
CEO George Zhao was brief on stage, but showed a couple of graphs that offer a quick explanation of why the new battery is better. A standard lithium battery doesn’t have much left of it once its voltage drops to 3.5 volts – this is where the silicon-carbon shines as it has 240% more capacity at 3.5 volts than the standard battery, which leads to 12.8% overall improvement
A silicon-carbon battery has a 12.8% higher energy density than a typical lithium battery of the same size
Interestingly, the Magic5 Pro in China is listed as having a 5,450mAh battery – it seems the new battery technology is already a reality, not just something lab-tested. However, the international model launches with a standard 5,100mAh battery, so we’ll be looking to confirm with Honor whether the units in China really feature silicon-carbon batteries.
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