PROBLEM TO BE SOLVED: To provide an electrode for a living body to be used for iontophoresis, etc., that can attain cost reduction and excellent pattern accuracy without trouble of peeling, etc., and also to provide a method for manufacturing the electrode for a living body.SOLUTION: An electrode 1 for a living body includes: a flexible base material 2 a first electrode 11 arranged on the flexible base material and having a thickness of ≥10 nm and ≤300 nm a second electrode 21 adjacently arranged on the same surface S of the flexible base material where the first electrode is arranged, being metal foil having a thickness of ≥5 μm and ≤50 μm, and having a potential difference to generate electromotive force between the second electrode and the first electrode connection wires 7 extending from one or both of the first electrode and the second electrode and overlapped each other and an insulation film 4 for covering the connection wires. The second electrode is allowed to adhere via a conductive adhesive layer 20. In this case, it is preferable that the first electrode is made of noble metal and the second electrode is of zinc foil or zinc oxide foil. It is preferable that a primer layer 3 is arranged between the flexible base material and one of or both of the first electrode and the conductive adhesive 20.COPYRIGHT: (C)2013,JPO&INPIT【課題】コスト低減を実現できると共に、剥離等の問題がなくパターン精度が良好なイオントフォレシス等に用いる生体用電極、及びその製造方法を提供する。【解決手段】フレキシブル基材2と、フレキシブル基材上に設けられた厚さ10nm以上300nm以下の第1電極11と、第1電極が設けられたフレキシブル基材の同一面Sに隣接して設けられ、厚さ5μm以上50μm以下の金属箔であって、第1電極との間で起電力が発生する電位差を持つ第2電極21と、第1電極及び第2電極の一方又は両方から延びて重なる接続配線7と、接続配線を覆う絶縁膜4とを有し、第2電極が導電性粘着剤層20を介して貼り合わされている生体用電極1による。このとき、第1電極が貴金属であり、第2電極が亜鉛箔又は酸化亜鉛箔であることが好ましい。フレキシブル基材と、第1電極及び導電性粘着剤20の一方又は両方との間に、プライマー層3が設けられていることが好ましい。【選択図】図1
