Lithium-doped pernigraniline-based materials

A lithium-doped Pernigraniline-based material (PN-Li), comprising

• at least one polymer chain formed by the succession of C6H4 rings and nitrogen atoms, each nitrogen atom being linked in para position relative to each C6H4 ring;
• n repeating units;
• a total amount X of lithium cations (Li+);
• an average amount of lithium cations (Li+) per repeating unit, with x=X/n;
• a total amount Y of anions (Am−);
• an average amount y of charge provided by anions (Am−) per repeating unit, with y=mY/n;
• a charge q of each repeating unit,
• a total charge Q of the polymer chain, with
• Q
• =
• ∑
• n
• ⁢
• q
• i
• mY−X since Q is compensated by the charges of Li+ and Am−;
• Q/n represents the formal oxidation state and Q/n=y−x;
• and
• wherein said PN-Li responds to the following formula (I):
• in which:
• * 4≤n≤500,000,
• * q is equal to −1, 0 or +1,
• * the mean atomic ratio hydrogen/nitrogen (H/N) for each repeating unit is such that 4≤H/N<4.5,
• * −1≤Q/n<0,
• * 0.5≤x≤1,
• * 0≤y≤0.5.