Patent ID: 9583753
Date: 2017-02-28
CPC Classifications: H01M,Y02E,Y02P,Y02T

Claim:
1. A battery provided with a pressure-type current interrupt mechanism placed in an electrically conducting path in which charge and discharge currents will flow, the current interrupt mechanism being configured to interrupt the charge and discharge currents flowing through the current interrupt mechanism according to an increase in internal pressure of a battery case, the battery including: a gas-generating material placed outside an electrode body within the battery case; a positive potential member placed outside the electrode body within the battery case and in contact with the gas-generating material, the positive potential member being electrically conducted to a positive electrode of the electrode body; and a negative potential member placed outside the electrode body within the battery case and in contact with the gas-generating material and spaced apart from the positive potential member, the negative potential member being electrically conducted to a negative electrode of the electrode body, the gas-generating material containing a gas-generating agent which will generate gas when a potential of the positive potential member exceeds a gas-generating potential, wherein the gas-generating material is a gas-generating liquid stored in a bottom area of accommodating space in the battery case, the positive potential member includes a positive contact part placed in the bottom area of the accommodating space and immersed in the gas-generating liquid, the negative potential member includes a negative contact part placed in the bottom area of the accommodating space and immersed in the gas-generating liquid and the electrode body and the gas-generating liquid are spaced apart from each other.