US Patent 7205069- SWNT membrane for batteries

http://www.freepatentsonline.com/7205069.htm

This patent from Richard Smalley's group at Rice University teaches basic carbon nanotube arrays with advantageous applications in lithium ion batteries. Claim 1 reads:

1. A battery comprising a membrane, wherein the membrane comprises an array of at least 10.sup.6 single-wall carbon nanotubes in a substantially parallel relationship, wherein the array is a substantially two-dimensional array.