Volume 96 Issue 1 | p. 5 | News of The Week
Issue Date: January 1, 2018

Voltage loss in Li-ion batteries explained

Study uncovers crystal structure change during discharging of experimental high-capacity batteries that leads to failure
Department: Science & Technology
News Channels: Materials SCENE, Analytical SCENE
Keywords: Energy storage, battery, lithium ion battery, electric vehicle

Low-cost electrodes that store more lithium than the ones used in today’s lithium-ion batteries could enable electric car drivers to go farther between charging stops. For that reason, researchers have examined many Li-based electrode materials, searching for better performers.

A family of Li-rich layered transition metal oxides looks especially promising. Compared with common commercial electrode materials, these oxides could, in principle, store 30% or more charge on a volume basis. But the voltage of batteries . . .

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