On the reproduction of Li\\r sub/3sub\\r Fe\\r sub/2sub\\r (HPO\\r sub/3sub\\r )\\r sub/3sub\\r Cl—a short discussion on “Li\\r sub/3sub\\r Fe\\r sub/2sub\\r (HPO\\r sub/3sub\\r )\\r sub/3sub\\r Cl: an electroactive iron phosphite as a new polyanionic cathode material for Li-ion battery”