http://www.pat2pdf.org/patents/pat7466536.pdf
http://jalopnik.com/5116725/eestor-battery-makers-secure-us-patent-for-screen+printed-battery-cells And a great backpacking tool! http://earth2tech.com/2008/12/29/lockheed-martin-eestor-working-on-body-armor-with-energy-unit/ Terry