Cell and method of producing the same

This invention relates to a battery and a method of fabricating thereof. More particularly, it relates to a battery which secures safety while retaining high discharge capacity by suppressing a temperature rise due to a short-circuit, etc. and a method of fabricating thereof. Conventional batteries have a problem that, in case the battery temperature should rise to 100° C. or higher due to an internal short-circuit, etc., a large short-circuit current develops to generate heat. It follows that the battery temperature further increases, which can result in a further increase of the short-circuit current. Further, some of electrode structures involve reduction in discharge capacity. These problems are solved by a battery in which an electron conductive material (), being in contact with an active material () in an electrode, comprises a conductive filler and a resin so that the electrode may increase its resistivity with a temperature rise, and the ratio of the particle size of the electron conductive material () to that of the active material () is in a range of from 0.1 to 20.