...An electronic conductor or semiconductor that creates an electric field in a system, passes electric current, or extracts electric current from a system. An electrochemical system such as a battery is composed of at least one pair of electrodes. The electrode through which positive charges flow from the electrode to the solution phase is called the anode, and the electrode through which positive charges flow from the solution phase to the electrode is called the cathode. In an electrochemical system, the electrode reaction proceeds in the direction of oxidation at the anode, and in the direction of reduction at the cathode. *Some terminology explanations that mention "cathode" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ある系の中に電場をつくったり,電流を流したり,系から電流をとりだしたりする役目を果たす電子伝導体や半導体のこと。電池のような電気化学系は,少なくとも1対の電極から構成されているが,そのうちで,電極から溶液相に向かって正電荷が流れだすほうをアノードanode,逆に溶液相から電極に向かって正電荷が流れこむほうをカソードcathodeと定義する。電気化学系のアノードでは電極反応が酸化の方向に,カソードでは還元の方向に進行する。… ※「cathode」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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