NOVELTY - A lithium ion capacitor comprises positive electrode (1), negative electrode (2), positive electrode collector (1a), negative electrode collector (2a) and a separator (3). The active material of positive electrode includes substance which supports lithium ion and/or anion. The active material of negative electrode includes substance which supports lithium ion. The separator is sandwiched between positive electrode or negative electrode, which adjoins lithium ion source by which negative electrode active material is provided in predetermined position in range of 40-120 mu m.    USE - Lithium ion capacitor is used for electric vehicles replaced with gasoline-powered car, solar power generation, wind-power generation, vehicle-mounted apparatus and electric vehicles such as electric-power-assisted bicycle and electric wheelchair, and electrical storage source of dynamic electrical appliance.    ADVANTAGE - The lithium ion capacitor is free from defects such as short-circuiting, and has high productivity.    DETAILED DESCRIPTION - A lithium ion capacitor comprises positive electrode, negative electrode, positive electrode collector, negative electrode collector, electrolyte solution, lithium ion supply source and a separator. The positive electrode is formed on positive electrode collector having hole which penetrates front and back surface. The negative electrode is formed on negative electrode collector having hole (12) which penetrates front and back surface. The electrolysis solution comprises aprotic organic solvent liquid of lithium salt. The lithium ion supply source supplies lithium ion which negative electrode and/or anode are made to support by electrochemical contact. The separator is formed between lithium ion supply source, anode and negative electrode which laminate three or more layers of positive electrode and/or negative electrode by turns. The positive electrode contains active material containing a substance which can support lithium ion and/or anion. The negative electrode comprises active material containing a substance which can support a lithium ion. The separator is sandwiched between positive electrode and/or negative electrode, which adjoins the lithium ion supply source by which active material of negative electrode provided in predetermined position in the range of 40-120 mu m.    DESCRIPTION OF DRAWING(S) - The drawing shows sectional view of lithium ion capacitor.    Positive electrode (1)    Positive electrode collector (1a)    Negative electrode (2)    Negative electrode collector (2a)    Separator (3)    Hole (12)