abstract |
Accumulator comprising a positive electrode, a negative electrode and a material that has a lithium insertion potential greater than 500 mV / Li + / Li, a tortuosity membrane of less than 2 comprising a fluorinated polymer, the thickness of which is between 100 and 120 μm and having a porosity between 50 and 90%, as a separator, and a liquid or gel electrolyte in the separator. |