abstract |
The present invention relates to a membrane comprising a poly (dialkylene ester) thermoplastic polyurethane composition. The present invention further comprises a positive electrode, a negative electrode, and (I) a separator film disposed between the positive electrode and the negative electrode, wherein the film is a poly (dialkylene ester) described in (A) An electrochemical cell comprising a thermoplastic polyurethane composition is provided. The present invention utilizes polyurethane-derived membranes and / or separators for use in electrochemical cells made from the described poly (dialkylene ester) thermoplastic polyurethane compositions; and such membranes and / or separators An electrochemical cell itself is provided. |