Researchers at the Ohio State Univ. (OSU) have developed a potassium-oxygen battery that is both long-lasting and inexpensive. The device has the potential for efficient renewable energy storage, possibly making the widespread adoption of solar and wind energy more feasible.
Metal-air batteries are a potent power source. However, lithium-oxygen batteries are more commonly used than potassium-oxygen batteries, mainly because the latter have a short cycle life — they die too quickly to justify their production cost...
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