A current collector in electrical contact with an anode of a battery is extended beyond the anode to serve as a heat sink and presents a substantial surface area through which heat is dissipated from inside the battery to the atmosphere. When multiple battery cells are stacked, the current collectors...http://www.google.co.uk/patents/US5478667?utm_source=gb-gplus-sharePatent US5478667 - Heat dissipating current collector for a battery
