TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Battery: The fuse electrically isolates the separate areas in response to the fuse reaching a predefined threshold temperature. It also conducts electricity at temperatures below the predefined threshold temperature and substantially does not conduct electricity at temperatures above the predefined threshold temperature. Preferably, the fuse is a positive temperature coefficient (PTC) fuse. The battery further comprises a first heat resistant layer coating on the anode sheet and a second heat resistant layer coating on the cathode sheet. The anode sheet, cathode sheet, and the separator are in a jelly roll configuration. The battery further comprises an anode current collector connecting the anode sheet to an anode of the battery and a cathode current collector connecting the cathode sheet to a cathode of the battery. The anode current collector is divided into two and is electrically connected by the fuse so that the anode sheet is divided into two separate areas. The cathode current collector is divided into two and is electrically connected by the fuse so that the cathode sheet is divided into two separate areas. Preferably, the battery is a lithium ion battery or a nickel cadmium battery. Each of the battery cells comprises: (i) a first fuse dividing the anode sheet into two separate areas, the first fuse electrically isolating the two separate areas of the anode sheet in response to the first fuse reaching the predefined threshold temperature; and (ii) a second fuse dividing the cathode sheet into two separate areas, the second fuse electrically isolating the two separate areas of the cathode sheet in response to the second fuse reaching the predefined threshold temperature. The battery further comprises one or more additional fuses further dividing the anode sheet and the cathode sheet. Specifically, the lithium ion battery comprises: (a) a control module that manages the charging and discharging process of the lithium ion battery; and (b) lithium ion battery cells, each battery cell comprising: (i) an anode sheet; (ii) a cathode sheet; (iii) an anode current collector electrically connecting the anode sheet to an anode of the lithium ion battery, where the anode current collector comprises two pieces; (iv) a cathode current collector electrically connecting the cathode sheet to a cathode of the lithium ion battery, where the cathode current collector comprises two pieces; (v) a separator situated between the anode sheet and the cathode sheet and electrically separating the anode sheet and the cathode sheet while allowing ions to pass between the anode sheet and the cathode sheet; (vi) a first fuse joining the first piece of the anode current collector with the second piece of the anode current collector, where the first fuse increases in resistance and substantially stops current from passing through the first fuse in response to the first fuse reaching a temperature of 125-150 degrees C; and (vii) a second fuse joining the first piece of the cathode current collector with the second piece of the cathode current collector, where the second fuse increases in resistance and substantially stops current from passing through the second fuse in response to the second fuse reaching a temperature of 125-150 degrees C. Preferred Electrical System: The system further comprises a generator for charging the battery.