Ultra-Long Battery Life Is Coming … Eventually

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Ultra-Long Battery Life Is Coming … Eventually
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“Batteries are getting a little bit better, but when batteries get better in energy density, there’s usually a trade-off with cycle life.”

last week that pushed battery life claims to a whole new level—and raised some eyebrows too—it was HyperX’s pair of 300-hour headphones. The wireless gaming headset, called Cloud Alpha Wireless, will supposedly offer 300 hours of continuous use on a single charge when the product launches this spring. This is up from 30 hours per charge in HyperX’s previous model, the Cloud II Wireless.

Since none of these products are available yet, it’s hard to know whether they'll live up to the hype. Experts say battery lifegetting better in consumer electronics—through a combination of super-efficient processors, low-power states, and a little help from advanced technologies like silicon anode. It’s just not necessarily getting 10 times better. Conventional lithium-ion batteries have their energy density limits, and they typically improve by single-digit percentages each year.

Srinivasan, like many other technologists these days, is optimistic that relatively new developments in silicon-anode technology will improve battery life. Conventional graphite-based lithium-ion batteries are rechargeable batteries in which lithium ions move from the negative electrode to the positive electrode . A key component of these batteries is graphite, which goes in the anode and is highly conductive.

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