▎ 摘　　要

NOVELTY - Fluoropolymer binder, comprises a mixture of a phase of polytetrafluoroethylene (PTFE) formed of primary particles of PTFE having a size ranging from 10 nm to 1 qm, and a phase of polyvinylidene fluoride (PVDF) formed of primary PVDF particles having a size ranging from 10 nm to 1 μ m, where binder is in powder form. USE - The fluoropolymer binder is useful for Li-ion battery electrode and supercapacitor for Li-ion secondary battery (claimed). ADVANTAGE - The fluoropolymer binder improves the ability of the electrode material to be handled, for a lower level of binder in the electrode, controls the distribution of the binder and the conductive filler on the surface of the active filler, ensures cohesion and mechanical integrity of the electrode, by guaranteeing good film formation or consolidation of the formulations which can be difficult to achieve for solvent-free processes, improves homogeneity of electrode composition in the thickness and width of the electrode, reduces overall rate of binder in the electrode, which, in the case of known solvent-free processes, remains higher compared to a standard slurry process, improves the mechanical strength of self-supporting films of electrode formulations. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: manufacturing binder by co-atomization of PVDF and PTFE latex, comprising (a) mixing a PVDF latex with a PTFE latex, (b) adding water to the mixture of PVDF and PTFE latexes to reduce the dry extract to a content of 10-50 wt.% polymer, co-atomizing the mixture thus obtained to obtain a powder composite formed of PTFE particles and PVDF particles; Li-ion battery electrode, comprising active anode or cathode filler, electronically conductive filler, and fluorinated polymer binder; manufacturing Li-ion battery electrode, comprising mixing active filler, polymer binder and conductive filler using a method which makes it possible to obtain an electrode formulation applicable to a metal support by a solvent-free method, and depositing electrode formulation on the metal substrate by a solvent-free process, to obtain a Li-ion battery electrode, and carrying out consolidation of electrode by a thermal and/or thermo-mechanical treatment; lLi-ion secondary battery, comprising anode, cathode and separator, in which at least one of the electrodes has the composition; and upercapacitor, comprising at least one electrode.