Battery leakage sensing system

A battery leakage sensing system comprising:

• a leakage sensor for sensing whether a battery leaks and outputting a result, said leakage sensor including a plurality of leakage sensing lines installed at an inner bottom of a battery pack, one of the leakage sensing lines having a first terminal and an open second terminal, and a second one of the leakage sensing lines having a first terminal and an open second terminal;
• a leakage display for displaying the sensed result from the leakage sensor, said leakage display being connected to the first terminal of said one of the leakage sensing lines;
• a leakage communicator for receiving the sensed result from the leakage sensor and transmitting the sensed result to portable electronic equipment, said leakage communicator being connected to the first terminal of said second one of the leakage sensing lines, and comprising,
• a resistor having one terminal connected to said second one of the leakage sensing lines of the leakage sensor and another terminal for connecting to a negative terminal of power for maintaining a predetermined voltage when current flows through the leakage sensing lines of the leakage sensor, and
• an operational amplifier having a non-inverting terminal connected to said one terminal of the resistor and an inverting terminal connected to a reference voltage for amplifying the difference between the predetermined voltage inputted to the non-inverting terminal and the reference voltage inputted to the inverting terminal, and outputting the amplified voltage to the portable electronic equipment.

A battery leakage sensing system, comprising:

• a battery container for receiving a battery;
• an electrical leakage sensor, applied as a sheet that covers at least a portion of a surface of the battery container at a location susceptible to leakage from a battery when a battery is installed in said container, for sensing whether a battery leaks and outputting a result, said leakage sensor further comprising a pair of complementary interdigitated electrodes disposed over the surface of said leakage sensor;
• a leakage display for displaying the sensed result from the leakage sensor;
• and
• a leakage communicator for receiving the sensed result from the leakage sensor and transmitting the sensed result to an external device.