A wound-type accumulator comprising a cylindrical wound electrode unit (10; 50), which has a positive electrode (11; 31; 41; 51) with an electrode layer containing a positive electrode active material capable of reversibly supporting lithium ions and/or anions formed on at least one surface of a current collector having pores passing through from a front surface to a back surface, and a negative electrode (12; 42; 52) with an electrode layer containing a negative electrode active material capable of reversibly supporting lithium ions formed on at least one surface of a current collector having pores passing through from a front surface to a back surface and is configured by winding an electrode stack (10A; 30A; 50A; 60A) obtained by stacking a first separator (13A; 14A; 53A; 63A), the negative electrode, a second separator (13B; 14B; 53B; 63B) and the positive electrode in this order from one end thereof, and an electrolytic solution composed of an aprotic organic solvent electrolyte solution of a lithium salt, wherein the negative electrode and/or the positive electrode is doped with lithium ions by electrochemical contact of the negative electrode and/or the positive electrode with a lithium ion source (16A; 16B; 16C; 36C) which is bonded under pressure to or stacked on a lithium electrode current collector (15a; 15b; 26a; 26b; 26c), wherein the lithium ion source is provided so as to come into contact with neither the positive electrode nor the negative electrode by virtue of the separator, wherein intra-positive electrode spaces (11S; 31T; 41S, 51S; 61S) are formed in the positive electrode, and at least one lithium ion source (16C; 36C) is provided in the intra-positive electrode space or at a position (12S; 52S) opposing to the intra-positive electrode space in the negative electrode in a state coming into no contact with the positive electrode. a cylindrical wound electrode unit (10; 50), which has a positive electrode (11; 31; 41; 51) with an electrode layer containing a positive electrode active material capable of reversibly supporting lithium ions and/or anions formed on at least one surface of a current collector having pores passing through from a front surface to a back surface, and a negative electrode (12; 42; 52) with an electrode layer containing a negative electrode active material capable of reversibly supporting lithium ions formed on at least one surface of a current collector having pores passing through from a front surface to a back surface and is configured by winding an electrode stack (10A; 30A; 50A; 60A) obtained by stacking a first separator (13A; 14A; 53A; 63A), the negative electrode, a second separator (13B; 14B; 53B; 63B) and the positive electrode in this order from one end thereof, and an electrolytic solution composed of an aprotic organic solvent electrolyte solution of a lithium salt, wherein the negative electrode and/or the positive electrode is doped with lithium ions by electrochemical contact of the negative electrode and/or the positive electrode with a lithium ion source (16A; 16B; 16C; 36C) which is bonded under pressure to or stacked on a lithium electrode current collector (15a; 15b; 26a; 26b; 26c), wherein the lithium ion source is provided so as to come into contact with neither the positive electrode nor the negative electrode by virtue of the separator, wherein intra-positive electrode spaces (11S; 31T; 41S, 51S; 61S) are formed in the positive electrode, and at least one lithium ion source (16C; 36C) is provided in the intra-positive electrode space or at a position (12S; 52S) opposing to the intra-positive electrode space in the negative electrode in a state coming into no contact with the positive electrode.