Chapter 1 High performance of lithium ion batteries using fluorine compounds Chapter 2 Electrochemical behavior of surface-fluorinated cathode materials for lithium ion battery Chapter 3 Fluoride cathodes for lithium ion battery Chapter 4 Fluoro-sulfates and -phosphates as new cathode materials for lithium ion battery Chapter 5 Ionic liquids, ionic crystals, and plastic crystals of fluorohydrogenates Chapter 6 Syntheses of new components for lithium battery electyrolytes: solvents, conductive salts, and additives Chapter 7 Safety improvement of lithium ion battery by organo-fluorine compounds Chapter 8 Artificial SEI for anode materials: fluorinated and non-fluorinated additives Chapter 9 Surface modification of carbon anodes for lithium ion batteries by fluorine and chlorine Chapter 10 New PVDF binders for lithium ion battery Chapter 11 Enhancement of the electrochemical performances of graphite fluorides by electro-polymerization Chapter 12 New nano-C-F compounds for non-rechargeable lithium battery Chapter 13 Fluoro-polymers for fuel cell applications Chapter 14 Fluoro-polymers for electrochemical applications Chapter 15 Surface-fluorinated carbon materials for super-capacitors Chapter 16 Fluorine compounds for Na batteries Chapter 17 Application of carbon materials derived from fluorocarbons to electrochemical capacitor