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We investigate a system of N Brownian particles with the Coulomb interaction in any dimension d >= 2, and we assume that the initial data are independent and identically distributed with a common density rho(0) satisfying integral(Rd) rho(0) ln rho(0) dx < infinity and rho(0) is an element of L2d/d+2 (R-d) boolean AND L-1(R-d, (1 + vertical bar x vertical bar(2)) dx). We prove that there exists a unique global strong solution for this interacting partsicle system and there is no collision among particles almost surely. For d = 2, we rigorously prove the propagation of chaos for this particle system globally in time without any cutoff in the following sense. When N -> infinity, the empirical measure of the particle system converges in law to a probability measure and this measure possesses a density which is the unique weak solution to the mean-field Poisson-Nernst-Planck equation of single component.
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