Notebookcheck Logo

Smartphone battery capacity race: 7000mAh becomes new benchmark

Smartphone battery capacity reaches 7000mAh milestone as manufacturers push battery density limits (Image source: Realme)
Smartphone battery capacity reaches 7000mAh milestone as manufacturers push battery density limits (Image source: Realme)
Innovative battery technology has improved its capacity to new heights, with manufacturers now incorporating 7000mAh batteries into their devices. Advanced silicon-carbon anodes enable this leap forward, promising extended battery life.

Smartphone manufacturers are currently trying their best to innovate new battery technology, with some devices now packing huge 7000mAh batteries. This is a bigger jump from the current capacities batteries have and marks the start of a whole new era in battery life, opening up all sorts of possibilities for how long your phone can run on a single charge. And it's all thanks to better battery tech and growing demand from users who want their phones to last longer.

Just recently, Realme dropped its Neo 7, which comes with a massive 7000mAh Titan battery developed in partnership with CATL. Even though the phone has a large 6.78-inch screen, it still manages to stay relatively slim at just 8.5mm thick. That's a clear sign of how much battery technology has improved, especially when it comes to squeezing bigger batteries into sleeker designs.

The boost in battery size is mainly driven by new materials, like the switch to silicon-carbon anodes. Silicon has a much higher energy density than the old graphite anodes, meaning it can store way more charge — up to 4200mAh/g, which is roughly 10 times what graphite can handle (about 340-370mAh/g). For example, the Realme GT 7 Pro uses a battery that's comprised of 10 percent silicon, improving energy density by about seven percent compared to the usual graphite-based cells.

That said, there are still some issues when it comes to using silicon in batteries. The biggest problem is that silicon tends to expand a lot (up to 300 percent) when it charges, which can mess with the battery's stability and lifespan. To counter this, manufacturers are getting creative with things like nano-processing, carbon coatings, and even mixing in silicon oxide.

Industry insiders, like Digital Chat Station, say this trend is only going to keep growing. Rumor has it that Honor is planning to release a phone with a 7800mAh battery next year.

Source(s)

MyDriver (in Chinese)

Read all 2 comments / answer
static version load dynamic
Loading Comments
Comment on this article
Please share our article, every link counts!
Mail Logo
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2024 12 > Smartphone battery capacity race: 7000mAh becomes new benchmark
Nathan Ali, 2024-12-20 (Update: 2024-12-21)