To provide a means suppressing deformation and cracking of an electrode regardless of expansion/contraction of an active material and improving cycle characteristics of a secondary battery.

An electrode 1 for use in a battery contains secondary particles 4 including the active material 2 having the coefficient of cubic expansion of at least 5% and consisting of at least one kind selected from the group consisting of natural graphite, artificial graphite, a metal alloyed with lithium, a compound containing a metal alloyed with lithium and an alloy containing lithium, a conductive assistant consisting of at least one kind selected from the group consisting of carbon black, flaky graphite, Ketjen black, acetylene black, carbon fiber and others and a first binder 3, and a second binder 5 having an elastic modulus different from that of the first binder 1 and is 18 to 70% in voids.