(1)铜负极,碳正极,氯化钠溶液为电解质能构成原电池---吸氧腐蚀!
(2)(-)2Cu - 4e- == 2Cu2+
(3)(+)O2 + 2H2O + 4e- == 4OH-
(4) Cu2+ + 2OH- == Cu(OH)2