Lithium metal battery with early warning function

The utility model particularly discloses a lithium metal battery with an early warning function, which comprises an outer protective shell, and a protective cavity is formed in the outer protective shell; the left end and the right end of the battery body are provided with a positive electrode and a negative electrode, the battery body is fixed in the protection cavity of the outer protection shell, and the positive electrode and the negative electrode both penetrate through and are clamped at the side end of the outer protection shell; the temperature detection device is positioned between the battery body and the outer protective shell; and the leakage detection liquid device is positioned between the battery body and the outer protective shell. The lithium metal battery provided by theutility model has the functions of temperature measurement, liquid leakage detection and warning, can quickly and timely sense and detect the use temperature condition of the battery and the leakage condition of the electroly