Building a better battery with instant charging and discharging

Building a better battery - Cosmic Log - msnbc.com: "Ceder and Kang found a way to cook the surface of the LiFePO4 material into a glassy structure that let the ions move around quickly, as if they were traveling on a beltway that bypassed surface streets. That sped the ions toward the tunnels and increased the charge/discharge rate by a factor of about 100. The researchers built a small test battery in the lab that usually needed six minutes for a full charge or discharge. When the material was tweaked, that time was cut to 10 or 20 seconds."