(November 22, 2011. MTR) - Researchers at Stanford University have now demonstrated a high-efficiency new nanomaterial battery electrode that lasts for 40,000 charge cycles without significantly losing its charge-holding capacity. The work was led by Yi Cui, a materials science and engineering professor at Stanford University.For completeness, Aquion Energy is developing a competing battery technology.
The electrodes maintain 83 percent of their charge capacity after 40,000 cycles—in comparison, lead-acid batteries last a few hundred cycles, while lithium-ion batteries typically last for 1,000. The electrodes also show 99 percent energy efficiency.
P.S. From a system perspective, storage solves the same kind of dilemma I described in the post about Odysseus and the Sirens [separation in Time.]
tags: infrastructure, energy, economics, storage, system, dilemma