NOVELTY - Nano-structured anode composition for lithium metal cell comprises integrated structure of electrically conductive interconnected nanometer-scaled filaments that form porous network of electron-conducting paths having interconnected pores, where filaments have transverse dimension less than 500 nm; and micron- or nanometer-scaled stabilized or surface-passivated particles (1-99 wt.%) of lithium, lithium alloy or lithium-containing compound.    USE - As anode material in rechargeable battery (particularly lithium metal battery and lithium metal-air battery) to provide power source for electric vehicle, hybrid electric vehicle, and portable electronic devices such as lap-top computers and mobile phones.    ADVANTAGE - The stabilized lithium particles can be mixed with the nano-filaments to form three-dimensional (3-D) integrated structures in real battery manufacturing environment since the stabilized lithium particles are relatively stable with respect to air or moisture for a reasonable period of time. During first discharge cycle, lithium ions are released from stabilized lithium particles and transported through electrolyte to reach the cathode. The geometry, stiffness, and strength of the nano-filaments bonded by binder, enables integrated 3-D structures to maintain its shape and dimension during this discharge and subsequent re-charge cycles. The web of filaments being mechanically strong and tough is capable of accommodating or cushioning any strains or stresses imposed on filaments without fracturing and without changing its shape and dimension. The nano-structure provides environment that is conducive to uniform deposition of lithium atoms, to the extent that no geometrically sharp structures or dendrites were found in anode after large number of cycles. The nano-structure with thin lithium coating is capable of quickly releasing lithium and thus capable of being discharged at high rate, thus is highly beneficial for high power density applications such as electric vehicles. The interconnected network of filaments forms continuous path for electrons, resulting in significantly reduced internal energy loss or internal heating. The same type of integrated structure of conductive nano-filaments can be used as a support for cathode active material, significantly simplifying the battery fabrication operations. The anode composition, if coupled with sulfur-based cathode active material, can provide an overall battery specific capacity greater than 600 (even greater than 1000) mAh/g.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for lithium secondary battery comprising anode composition and non-aqueous electrolyte or electrolyte combined with separator, disposed between negative and positive electrodes.    DESCRIPTION OF DRAWING(S) - The figure shows schematic diagram of lithium metal cell.