31. As a school teacher, Ohm began his research with the new electrochemical cell , invented by Italian scientist Alessandro Volta. 32. In 1803 Berzelius demonstrated the power of an electrochemical cell to decompose chemicals into pairs of electrically opposite constituents. 33. An electrochemical cell is a device that produces an electric current from energy released by a spontaneous redox reaction. 34. So a very large electrochemical cell would have a very modest emf-perhaps no more than 2 or 3 volts. 35. The principle is to protect the metal surface from corrosion by making it the cathode of an electrochemical cell . 36. Further testing using salt bridge electrochemical cells were conducted during 2006 and 2007 at the Oak Ridge Shark Lab. 37. EO technique also has some disadvantages, such as high cost and complexity of setting up and operating an electrochemical cell . 38. Pairing lithium, and oxygen ( from air ), can theoretically lead to electrochemical cells with the highest specific energy possible. 39. The term " photovoltaic " comes from the Italian physicist Alessandro Volta, inventor of the battery ( electrochemical cell ). 40. In practice when an electrochemical cell is " driven " toward completion by applying reasonable potential, it is kinetically controlled.
