Solid electrolytic capacitor

The disclosed solid electrolytic capacitor (10) is provided with: a laminated unit (20) in which a plurality of capacitor units (21) are laminated, each capacitor unit (21) having a capacitor element (22) that includes an anode part (23a) and a cathode part (25), and a cathode foil (27) that is connected to the cathode part (25) via a first conductive paste (28); and a cathode lead terminal (30) electrically connected to the cathode part (25). The cathode lead terminal (30) has at least one side wall section (31) that faces the side surface of the cathode section (25) and is electrically connected to the cathode foil (27). As a result, the ESR of the solid electrolytic capacitor can be reduced. 公开的固体电解电容器(10)包括：层叠单元(20)，其是将多个电容器单元(21)层叠而成的，该电容器单元(21)具有包含阳极部(23a)和阴极部(25)的电容器元件(22)和借助第1导电性糊剂(28)与阴极部(25)连接的阴极箔(27)；以及阴极引线端子(30)，其与阴极部(25)电连接。阴极引线端子(30)具有与阴极部(25)的侧面相对且与阴极箔(27)电连接的至少1个侧壁部(31)。由此，能够降低固体电解电容器的ESR。