The development of the market of electric or hybrid vehicles is of paramount importance in order to limit urban pollution and global green house gas emissions. The development of models for batteries requires characterization techniques that are able to determine the local concentration of lithium at the micrometer scale. Few techniques can fulfill this need. We propose to develop the quantitative microscopy of lithium by combining a LIBS (Laser-Induced Breakdown Spectroscopy) imaging system with a second synchronized laser (Laser-Induced Fluorescence). Such a coupling has for ambition to divide by ten the common spatial resolution to reach the micrometer while preserving a sufficient sensitivity. The elemental images will be turned quantitative with the help of calibration curves. Electrodes will be put into controlled state of charge and their bulk lithium concentration will be independently determined by inductive coupled plasma atomic emission spectroscopy. The project aims to build a prototype, to measure its analytical performance and to demonstrate its contribution to the characterization of lithium batteries on show cases.