Corrosion, a damage phenomenon experienced by all materials in nature, causes huge losses, resource consumption, environmental pollution, industrial accidents, and endangered human health and safety. According to relevant statistics, the annual corrosion loss accounts for %3.34% of the gross domestic product (GDP), [1] and the global corrosion cost is more than four trillion dollars per year. [2] In electrochemical corrosion protection technology, cathodic protection using a sacrificial anode has the problem of metal consumption, [3] whereas cathodic protection using impressed current requires an external power supply, which requires further improvement. [4,5] In 2012, Wang Zhonglin first developed triboelectric nanogenerators (TENGs) by coupling the effects of triboelectrification and electrostatic induction. [6] TENGs have four basic working modes and can harvest different forms of energy, including human motion, [7] vibration, [8] tire rotation, [9] wind energy, [10,11] water energy, [12,13] etc. TENGs have the advantages of being light weight and low cost, with diverse structures and a wide choice of component materials, [14] along with high efficiency, even at low operating frequencies. [15] Many studies have combined TENG and impressed current cathodic protection to achieve energy harvesting and self-utilization. [16] Zhu used energy harvested from raindrops and wind for self-powered corrosion protection of metal surfaces. [17] Sun used liquid-solid TENG arrays for cathodic protection of carbon steel, [18,19] and Cui combined the self-powered cathodic protection of a sandwich-structured TENG with a green corrosion inhibitor. [20] A new type of synergistic