The present invention is directed to an electrochemical cell having plate electrodes housed inside mating "clam shell" casing components. When mated together, the casing components are form-fitting with respect to the internal battery structure so as to reduce the overall size of the electrochemical...http://www.google.co.uk/patents/US6610443?utm_source=gb-gplus-sharePatent US6610443 - One-piece header assembly for hermetic battery terminal feedthrough, fill and closure designs
