Secondary battery using non-sintered thin electrode and process for same

摘要

The present invention provides batteries with low cost, excellent in high rate discharge characteristics (high power characteristics) and high reliability. For example, the present invention provides Ni/MH batteries with low cost, excellent in high rate discharge characteristics (high power characteristics) and high reliability. The batteries of the present invention are obtained by applying the conductive electrode substrate obtained by the following method to a positive electrode and /or a negative electrode and by combining these electrodes with a separator which is much thinner than conventional separators. The conductive electrode substrate which is made three dimensional is obtained by forming innumerable bridge structural portions on both sides of a nickel foil, having no burr on the apparent surface of said three dimensional substrate. The same type of substrate made of Al and Cu foil are applicable for a Li secondary battery system positive and negative electrodes, respectively.