Patent attributes
Leak detection sensors, appliances configured to detect leaks and methods of detecting leaks are provided. The leak detection sensor is a self-powered leak detection sensor. The leak detection sensor includes a water-permeable medium and at least one electrochemical cell. The electrochemical cell can include a first electrode and a second electrode, and an electrolyte disposed between the electrodes, wherein in a dormant state, the electrolyte is in a solid, dry state. The electrochemical cell can enter an active state when exposed to water. The electrochemical cell can be configured to generate electrical power in the active state. The leak detection sensor can further include a peripheral electronic component configured to receive electrical power produced by the electrochemical cell. The self-powered leak detection sensor is configured for, and related methods include, detecting exposure to water in response to electrical energy generation of the electrochemical cell.