FTP, name this minimum resistance associated with any battery when current is drawn.
It is greater for lithium-ion than for nickel-cadmium batteries, and tends to increase with use. Mostly due to the  electrolyte between electrodes in an electrochemical cell, it is considered the output impedance for batteries It explains why the theoretical EMF of a cell, calculated from reduction potentials, will always be greater than the actual voltage  measured across the battery. FTP, name this minimum resistance associated with any battery when current is drawn.
It is greater for lithium-ion than for nickel-cadmium batteries, and tends to increase with use.
Internal Resistance (accept output impedance early)