In 1902, The Electrochemical Society (ECS) was founded.
In 1909, Robert Andrews Millikan began a series of experiments (see oil drop experiment) to determine the electric charge carried by a single electron.
In 1911, Harvey Fletcher, working with Millikan, was successful in measuring the charge on the electron, by replacing the water droplets used by Millikan, which quickly evaporated, with oil droplets. Within one day Fletcher measured the charge of an electron within several decimal places.
In 1923, Johannes Nicolaus Brønsted and Martin Lowry published essentially the same theory about how acids and bases behave, using an electrochemical basis.
In 1937, Arne Tiselius developed the first sophisticated electrophoretic apparatus.  Some years later, he was awarded the 1948 Nobel Prize for his work in protein electrophoresis.
A year later, in 1949, the International Society of Electrochemistry (ISE) was founded.
By the 1960s–1970s quantum electrochemistry was developed by Revaz Dogonadze and his students.