anode
n.n. the part of a battery or electronic device where electricity flows out. It is usually the positive side of a battery.
n. the electrode through which current flows into a polarized electrical device. In a battery, it is the terminal at which oxidation occurs, typically the positive terminal.
The battery has a small metal anode.
In a lithium-ion battery, the anode is made of graphite to store the lithium ions during charging.
The efficiency of the electrochemical cell depends heavily on the material composition of the anode, as it determines how easily electrons can be released into the circuit.
From Ancient Greek ἀνα- (ana-, “up”) and ὁδός (hodós, “path”), forming the New Greek compound ἄνοδος (ánodos). Coined by English polymath William Whewell in 1834 for Michael Faraday, who introduced it later that year. By surface analysis, an- (“up, forward, away”) + -ode (“way”).